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overflow: hidden; text-overflow: ellipsis; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }</style><div class="col-xs-12 clearfix"><div class="u-floatLeft"><h1 class="PageHeader-title u-m0x u-fs30">Sediment</h1><div class="u-tcGrayDark">7,177 Followers</div><div class="u-tcGrayDark u-mt2x">Recent papers in <b>Sediment</b></div></div></div></div></div></div><div class="TabbedNavigation"><div class="container"><div class="row"><div class="col-xs-12 clearfix"><ul class="nav u-m0x u-p0x list-inline u-displayFlex"><li class="active"><a href="https://www.academia.edu/Documents/in/Sediment">Top Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Sediment/MostCited">Most Cited Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Sediment/MostDownloaded">Most Downloaded Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Sediment/MostRecent">Newest Papers</a></li><li><a class="" href="https://www.academia.edu/People/Sediment">People</a></li></ul></div><style type="text/css">ul.nav{flex-direction:row}@media(max-width: 567px){ul.nav{flex-direction:column}.TabbedNavigation li{max-width:100%}.TabbedNavigation li.active{background-color:var(--background-grey, #dddde2)}.TabbedNavigation li.active:before,.TabbedNavigation li.active:after{display:none}}</style></div></div></div><div class="container"><div class="row"><div class="col-xs-12"><div class="u-displayFlex"><div class="u-flexGrow1"><div class="works"><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_58383701" data-work_id="58383701" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/58383701/Migration_of_137Cs_in_tributaries_lake_water_and_sediment_of_Lago_Maggiore_Italy_Switzerland_analysis_and_comparison_with_Lago_di_Lugano_and_other_lakes">Migration of 137Cs in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) – analysis and comparison with Lago di Lugano and other lakes</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">This paper describes the behaviour of 137 Cs in Lago Maggiore and other pre-alpine lakes as a consequence of atmospheric nuclear weapons testing fallout and the fallout from the nuclear accident in Chernobyl. It presents data on the 137... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_58383701" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">This paper describes the behaviour of 137 Cs in Lago Maggiore and other pre-alpine lakes as a consequence of atmospheric nuclear weapons testing fallout and the fallout from the nuclear accident in Chernobyl. It presents data on the 137 Cs distribution in tributaries, lake water, bottom sediments and reveals the role of 137 Cs as a marker of the sedimentation processes. The runoff of 137 Cs from the watershed to the lake is described with a simple compartment model. Measurements of the activity concentration of 137 Cs in sediments are compared with the output of a model (diffusion-convection type) which describes the input of 137 Cs into and its vertical distribution within the sediment. Varying sedimentation rates (0.05-0.90 g (cm 2 y) À1) in Lago Maggiore are compared with data of other authors. Sedimentation rates and total distribution coefficients (of about 10 5 L kg À1) in Lago Maggiore are discussed and compared with those of Lago di Lugano, Lake Constance, and Lake Vorsee.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/58383701" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="31e13512e93c1734fd585567b2238e16" rel="nofollow" data-download="{"attachment_id":72822707,"asset_id":58383701,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/72822707/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="116843819" href="https://independent.academia.edu/VPutyrskaya">Victoria Putyrskaya</a><script data-card-contents-for-user="116843819" type="text/json">{"id":116843819,"first_name":"Victoria","last_name":"Putyrskaya","domain_name":"independent","page_name":"VPutyrskaya","display_name":"Victoria Putyrskaya","profile_url":"https://independent.academia.edu/VPutyrskaya?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_58383701 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="58383701"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 58383701, container: ".js-paper-rank-work_58383701", }); 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It presents data on the 137 Cs distribution in tributaries, lake water, bottom sediments and reveals the role of 137 Cs as a marker of the sedimentation processes. The runoff of 137 Cs from the watershed to the lake is described with a simple compartment model. Measurements of the activity concentration of 137 Cs in sediments are compared with the output of a model (diffusion-convection type) which describes the input of 137 Cs into and its vertical distribution within the sediment. Varying sedimentation rates (0.05-0.90 g (cm 2 y) À1) in Lago Maggiore are compared with data of other authors. Sedimentation rates and total distribution coefficients (of about 10 5 L kg À1) in Lago Maggiore are discussed and compared with those of Lago di Lugano, Lake Constance, and Lake Vorsee.","downloadable_attachments":[{"id":72822707,"asset_id":58383701,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":116843819,"first_name":"Victoria","last_name":"Putyrskaya","domain_name":"independent","page_name":"VPutyrskaya","display_name":"Victoria Putyrskaya","profile_url":"https://independent.academia.edu/VPutyrskaya?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":4507,"name":"Nuclear Weapons","url":"https://www.academia.edu/Documents/in/Nuclear_Weapons?f_ri=192294","nofollow":true},{"id":6177,"name":"Modeling","url":"https://www.academia.edu/Documents/in/Modeling?f_ri=192294","nofollow":true},{"id":45213,"name":"Italy","url":"https://www.academia.edu/Documents/in/Italy?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":73356,"name":"CS","url":"https://www.academia.edu/Documents/in/CS?f_ri=192294"},{"id":81782,"name":"Environmental Radioactivity","url":"https://www.academia.edu/Documents/in/Environmental_Radioactivity?f_ri=192294"},{"id":133177,"name":"Temperature","url":"https://www.academia.edu/Documents/in/Temperature?f_ri=192294"},{"id":152580,"name":"Switzerland","url":"https://www.academia.edu/Documents/in/Switzerland?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":380825,"name":"Oxygen","url":"https://www.academia.edu/Documents/in/Oxygen?f_ri=192294"},{"id":394473,"name":"Chernobyl Nuclear Accident","url":"https://www.academia.edu/Documents/in/Chernobyl_Nuclear_Accident?f_ri=192294"},{"id":397178,"name":"Cesium","url":"https://www.academia.edu/Documents/in/Cesium?f_ri=192294"},{"id":439435,"name":"Fresh water","url":"https://www.academia.edu/Documents/in/Fresh_water?f_ri=192294"},{"id":635488,"name":"Vertical Distribution","url":"https://www.academia.edu/Documents/in/Vertical_Distribution?f_ri=192294"},{"id":958194,"name":"Sedimentation Rate","url":"https://www.academia.edu/Documents/in/Sedimentation_Rate?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":3379034,"name":"Radioactive fallout","url":"https://www.academia.edu/Documents/in/Radioactive_fallout?f_ri=192294"},{"id":3476481,"name":"Compartment Model","url":"https://www.academia.edu/Documents/in/Compartment_Model?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_5411315" data-work_id="5411315" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" rel="nofollow" href="https://www.academia.edu/5411315/SETTLING_VELOCITY_xls_2_1_Rapid_Computer_Calculations_of_the_Sedimentation_Velocity_and_the_Hindered_Settling_Rate_of_Spherical_and_Natural_Sediment_Particles">SETTLING VELOCITY.xls (2.1): Rapid Computer Calculations of the Sedimentation Velocity and the Hindered Settling Rate of Spherical and Natural Sediment Particles</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Excel spreadsheet Settling Velocity.xls (2.1) calculates the terminal settling velocity of single spherical particles and of single natural sediment particles, in liquids and gases. It also predicts the hindered settling velocity of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_5411315" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Excel spreadsheet Settling Velocity.xls (2.1) calculates the terminal settling velocity of single spherical particles and of single natural sediment particles, in liquids and gases. It also predicts the hindered settling velocity of concentrated suspensions, by using Richardson & Zaki’s Law. <br />Guo (2002), Song Zhiyao et al. (2008), and Cheng (2009) combined the 3 “classical” settling velocity equations on laminar flow (Stokes’ Law), intermediate flow, and turbulent flow (Newton’s Law) each to only one relatively simple “new” settling velocity equation, used in this spreadsheet. <br />Calculations by these new settling laws are compared and contrasted with the sometimes tedious <br />classical calculations, and validated by graphical and manual sedimentation calculations. <br />13 worked examples illustrate how to use this spreadsheet, and how do manual calculations.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/5411315" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="133b25e8b5ab82476a16bbbaff971cb5" rel="nofollow" data-download="{"attachment_id":32544572,"asset_id":5411315,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/32544572/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5470642" rel="nofollow" href="https://hasdenbosch.academia.edu/JanwillemRouweler">Janwillem Rouweler</a><script data-card-contents-for-user="5470642" type="text/json">{"id":5470642,"first_name":"Janwillem","last_name":"Rouweler","domain_name":"hasdenbosch","page_name":"JanwillemRouweler","display_name":"Janwillem Rouweler","profile_url":"https://hasdenbosch.academia.edu/JanwillemRouweler?f_ri=192294","photo":"https://0.academia-photos.com/5470642/2401819/2795628/s65_janwillem.rouweler.jpg"}</script></span></span></li><li class="js-paper-rank-work_5411315 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="5411315"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 5411315, container: ".js-paper-rank-work_5411315", }); 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$(".js-view-count[data-work-id=5411315]").text(description); $(".js-view-count-work_5411315").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_5411315").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="5411315"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">21</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="55" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Engineering">Environmental Engineering</a>, <script data-card-contents-for-ri="55" type="text/json">{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="72" rel="nofollow" href="https://www.academia.edu/Documents/in/Chemical_Engineering">Chemical Engineering</a>, <script data-card-contents-for-ri="72" type="text/json">{"id":72,"name":"Chemical Engineering","url":"https://www.academia.edu/Documents/in/Chemical_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4468" rel="nofollow" href="https://www.academia.edu/Documents/in/Food_Engineering">Food Engineering</a>, <script data-card-contents-for-ri="4468" type="text/json">{"id":4468,"name":"Food Engineering","url":"https://www.academia.edu/Documents/in/Food_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="5443" rel="nofollow" href="https://www.academia.edu/Documents/in/Process_Modeling_and_Simulation">Process Modeling and Simulation</a><script data-card-contents-for-ri="5443" type="text/json">{"id":5443,"name":"Process Modeling and Simulation","url":"https://www.academia.edu/Documents/in/Process_Modeling_and_Simulation?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=5411315]'), work: {"id":5411315,"title":"SETTLING VELOCITY.xls (2.1): Rapid Computer Calculations of the Sedimentation Velocity and the Hindered Settling Rate of Spherical and Natural Sediment Particles","created_at":"2013-12-12T22:48:15.438-08:00","url":"https://www.academia.edu/5411315/SETTLING_VELOCITY_xls_2_1_Rapid_Computer_Calculations_of_the_Sedimentation_Velocity_and_the_Hindered_Settling_Rate_of_Spherical_and_Natural_Sediment_Particles?f_ri=192294","dom_id":"work_5411315","summary":"Excel spreadsheet Settling Velocity.xls (2.1) calculates the terminal settling velocity of single spherical particles and of single natural sediment particles, in liquids and gases. It also predicts the hindered settling velocity of concentrated suspensions, by using Richardson \u0026 Zaki’s Law.\r\nGuo (2002), Song Zhiyao et al. (2008), and Cheng (2009) combined the 3 “classical” settling velocity equations on laminar flow (Stokes’ Law), intermediate flow, and turbulent flow (Newton’s Law) each to only one relatively simple “new” settling velocity equation, used in this spreadsheet. \r\nCalculations by these new settling laws are compared and contrasted with the sometimes tedious\r\nclassical calculations, and validated by graphical and manual sedimentation calculations. \r\n13 worked examples illustrate how to use this spreadsheet, and how do manual calculations.","downloadable_attachments":[{"id":32544572,"asset_id":5411315,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5470642,"first_name":"Janwillem","last_name":"Rouweler","domain_name":"hasdenbosch","page_name":"JanwillemRouweler","display_name":"Janwillem Rouweler","profile_url":"https://hasdenbosch.academia.edu/JanwillemRouweler?f_ri=192294","photo":"https://0.academia-photos.com/5470642/2401819/2795628/s65_janwillem.rouweler.jpg"}],"research_interests":[{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true},{"id":72,"name":"Chemical Engineering","url":"https://www.academia.edu/Documents/in/Chemical_Engineering?f_ri=192294","nofollow":true},{"id":4468,"name":"Food Engineering","url":"https://www.academia.edu/Documents/in/Food_Engineering?f_ri=192294","nofollow":true},{"id":5443,"name":"Process Modeling and Simulation","url":"https://www.academia.edu/Documents/in/Process_Modeling_and_Simulation?f_ri=192294","nofollow":true},{"id":21080,"name":"Environmental Modeling \u0026 Simulation","url":"https://www.academia.edu/Documents/in/Environmental_Modeling_and_Simulation?f_ri=192294"},{"id":30617,"name":"Food Process Engineering","url":"https://www.academia.edu/Documents/in/Food_Process_Engineering?f_ri=192294"},{"id":31630,"name":"Food Processing","url":"https://www.academia.edu/Documents/in/Food_Processing?f_ri=192294"},{"id":34478,"name":"Food Science and Technology","url":"https://www.academia.edu/Documents/in/Food_Science_and_Technology?f_ri=192294"},{"id":39717,"name":"Food Technology","url":"https://www.academia.edu/Documents/in/Food_Technology?f_ri=192294"},{"id":59805,"name":"Spreadsheet Simulation","url":"https://www.academia.edu/Documents/in/Spreadsheet_Simulation?f_ri=192294"},{"id":61816,"name":"Chemical Technology","url":"https://www.academia.edu/Documents/in/Chemical_Technology?f_ri=192294"},{"id":80116,"name":"Solid Settling Rates in Moving Fluids","url":"https://www.academia.edu/Documents/in/Solid_Settling_Rates_in_Moving_Fluids?f_ri=192294"},{"id":113501,"name":"Sediment transport","url":"https://www.academia.edu/Documents/in/Sediment_transport?f_ri=192294"},{"id":144569,"name":"Excel","url":"https://www.academia.edu/Documents/in/Excel?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":213042,"name":"Microsoft Excel","url":"https://www.academia.edu/Documents/in/Microsoft_Excel?f_ri=192294"},{"id":364272,"name":"Settling Velocity","url":"https://www.academia.edu/Documents/in/Settling_Velocity?f_ri=192294"},{"id":685328,"name":"Drag Coefficient","url":"https://www.academia.edu/Documents/in/Drag_Coefficient?f_ri=192294"},{"id":740822,"name":"Settling Pond","url":"https://www.academia.edu/Documents/in/Settling_Pond?f_ri=192294"},{"id":834091,"name":"Hindered settling","url":"https://www.academia.edu/Documents/in/Hindered_settling?f_ri=192294"},{"id":977357,"name":"Settling Properties","url":"https://www.academia.edu/Documents/in/Settling_Properties?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_58694865" data-work_id="58694865" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/58694865/Light_sediment_temperature_and_the_early_life_history_of_the_habitat_forming_alga_Cystoseira_barbata">Light, sediment, temperature, and the early life-history of the habitat-forming alga Cystoseira barbata</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Recruitment is essential for the maintenance of populations, but far more is typically known about the more easily-observed adult stages than their smaller, often microscopic early life-history counterparts. This discrepancy can be... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_58694865" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Recruitment is essential for the maintenance of populations, but far more is typically known about the more easily-observed adult stages than their smaller, often microscopic early life-history counterparts. This discrepancy can be particularly problematic for populations of foundation species that create biogenic habitat for a multitude of other taxa, but are themselves prime candidates for exploitation, fragmentation, and loss, and therefore become the focus of restoration eVorts partly or fully dependent on recruitment. The purpose of this study was to improve ecological understanding for early life-history stages of the habitat-forming marine alga Cystoseira barbata (Stackhouse) C. Agardh (Fucales: Sargassaceae), member of a genus that has experienced considerable fragmentation and population decline on European coasts. Using experimental manipulations of water temperature, light intensity, and sediment accumulation, we observed that sediment virtually precluded recruitment of C. barbata, and greatly impacted the survival of recently settled germlings (up to »83% mortality). Stronger intensities of light facilitated the growth of germlings, including the capacity for »50% of them to outgrow detrimental sediment and survive. Temperature (10 vs. 16°C) had no eVect on early recruitment, survival, or growth. This information helps to identify likely causes and locations of recruitment failure, and by extension, the conditions needed (either naturally or through human intervention) to facilitate recruitment and possible habitat restoration. Ultimately, this knowledge can increase our capacity to predict population persistence and the likely success of restoration eVorts. Communicated by S. D. Connell.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/58694865" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="04276a94b4bb6c2213103d835b35fbaf" rel="nofollow" data-download="{"attachment_id":72981626,"asset_id":58694865,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/72981626/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="18274821" href="https://uni-lj.academia.edu/AndrewIrving">Andrew Irving</a><script data-card-contents-for-user="18274821" type="text/json">{"id":18274821,"first_name":"Andrew","last_name":"Irving","domain_name":"uni-lj","page_name":"AndrewIrving","display_name":"Andrew Irving","profile_url":"https://uni-lj.academia.edu/AndrewIrving?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_58694865 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="58694865"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 58694865, container: ".js-paper-rank-work_58694865", }); 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$(".js-view-count[data-work-id=58694865]").text(description); $(".js-view-count-work_58694865").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_58694865").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="58694865"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">16</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="158" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_Biology">Marine Biology</a>, <script data-card-contents-for-ri="158" type="text/json">{"id":158,"name":"Marine Biology","url":"https://www.academia.edu/Documents/in/Marine_Biology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="7666" rel="nofollow" href="https://www.academia.edu/Documents/in/Life_history">Life history</a>, <script data-card-contents-for-ri="7666" type="text/json">{"id":7666,"name":"Life history","url":"https://www.academia.edu/Documents/in/Life_history?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="47884" rel="nofollow" href="https://www.academia.edu/Documents/in/Biological_Sciences">Biological Sciences</a>, <script data-card-contents-for-ri="47884" type="text/json">{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="58054" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Sciences">Environmental Sciences</a><script data-card-contents-for-ri="58054" type="text/json">{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=58694865]'), work: {"id":58694865,"title":"Light, sediment, temperature, and the early life-history of the habitat-forming alga Cystoseira barbata","created_at":"2021-10-17T21:24:53.812-07:00","url":"https://www.academia.edu/58694865/Light_sediment_temperature_and_the_early_life_history_of_the_habitat_forming_alga_Cystoseira_barbata?f_ri=192294","dom_id":"work_58694865","summary":"Recruitment is essential for the maintenance of populations, but far more is typically known about the more easily-observed adult stages than their smaller, often microscopic early life-history counterparts. This discrepancy can be particularly problematic for populations of foundation species that create biogenic habitat for a multitude of other taxa, but are themselves prime candidates for exploitation, fragmentation, and loss, and therefore become the focus of restoration eVorts partly or fully dependent on recruitment. The purpose of this study was to improve ecological understanding for early life-history stages of the habitat-forming marine alga Cystoseira barbata (Stackhouse) C. Agardh (Fucales: Sargassaceae), member of a genus that has experienced considerable fragmentation and population decline on European coasts. Using experimental manipulations of water temperature, light intensity, and sediment accumulation, we observed that sediment virtually precluded recruitment of C. barbata, and greatly impacted the survival of recently settled germlings (up to »83% mortality). Stronger intensities of light facilitated the growth of germlings, including the capacity for »50% of them to outgrow detrimental sediment and survive. Temperature (10 vs. 16°C) had no eVect on early recruitment, survival, or growth. This information helps to identify likely causes and locations of recruitment failure, and by extension, the conditions needed (either naturally or through human intervention) to facilitate recruitment and possible habitat restoration. Ultimately, this knowledge can increase our capacity to predict population persistence and the likely success of restoration eVorts. Communicated by S. D. Connell.","downloadable_attachments":[{"id":72981626,"asset_id":58694865,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":18274821,"first_name":"Andrew","last_name":"Irving","domain_name":"uni-lj","page_name":"AndrewIrving","display_name":"Andrew Irving","profile_url":"https://uni-lj.academia.edu/AndrewIrving?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":158,"name":"Marine Biology","url":"https://www.academia.edu/Documents/in/Marine_Biology?f_ri=192294","nofollow":true},{"id":7666,"name":"Life history","url":"https://www.academia.edu/Documents/in/Life_history?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true},{"id":70660,"name":"Habitat Restoration","url":"https://www.academia.edu/Documents/in/Habitat_Restoration?f_ri=192294"},{"id":85707,"name":"Habitat","url":"https://www.academia.edu/Documents/in/Habitat?f_ri=192294"},{"id":128057,"name":"Light","url":"https://www.academia.edu/Documents/in/Light?f_ri=192294"},{"id":133177,"name":"Temperature","url":"https://www.academia.edu/Documents/in/Temperature?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":192514,"name":"Water Temperature","url":"https://www.academia.edu/Documents/in/Water_Temperature?f_ri=192294"},{"id":227168,"name":"Marine Algae","url":"https://www.academia.edu/Documents/in/Marine_Algae?f_ri=192294"},{"id":387505,"name":"Light Intensity","url":"https://www.academia.edu/Documents/in/Light_Intensity?f_ri=192294"},{"id":572222,"name":"Population Decline","url":"https://www.academia.edu/Documents/in/Population_Decline?f_ri=192294"},{"id":1329171,"name":"Population Persistence","url":"https://www.academia.edu/Documents/in/Population_Persistence?f_ri=192294"},{"id":3719861,"name":"Early Life History","url":"https://www.academia.edu/Documents/in/Early_Life_History?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_12046469" data-work_id="12046469" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/12046469/Sediment_related_distribution_patterns_of_nematodes_and_macrofauna_Two_sides_of_the_benthic_coin">Sediment-related distribution patterns of nematodes and macrofauna: Two sides of the benthic coin?</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">We investigated the sediment-related distribution of both nematodes and macrofauna on the Belgian part of the North Sea (Southern Bight of the North Sea) in order to evaluate whether both faunal groups reflect similar patterns in... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_12046469" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">We investigated the sediment-related distribution of both nematodes and macrofauna on the Belgian part of the North Sea (Southern Bight of the North Sea) in order to evaluate whether both faunal groups reflect similar patterns in community composition and diversity. Fine-grained sediments (median grain size <200 mm) were inhabited by nematode communities characterised by a low diversity and dominated by non-selective deposit-feeding nematodes. Nematode communities from coarser sediments were significantly different in terms of community composition and diversity. Moreover, all nematode feeding types were present in coarser sediments. These differences were explained by the contrasting biogeochemical processes prevailing in both sediment types, rather than granulometry and food availability per se. Macrofaunal distribution patterns were different from those of the nematode communities and seem to be related to water column processes (SPM loading, food availability, hydrodynamic stress) that promote the establishment of diverse communities in the coarser sediments but not in the finest sediments. This suggests that data on nematodes and macrofauna reveal different, complementary aspects of the factors structuring the benthic ecosystem that can be of importance in assessing the ecological status of the seafloor.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/12046469" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="0cce80544f86afa21a8c5ff41eccc8f9" rel="nofollow" data-download="{"attachment_id":46394338,"asset_id":12046469,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/46394338/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="30025256" href="https://independent.academia.edu/JanVanaverbeke">Jan Vanaverbeke</a><script data-card-contents-for-user="30025256" type="text/json">{"id":30025256,"first_name":"Jan","last_name":"Vanaverbeke","domain_name":"independent","page_name":"JanVanaverbeke","display_name":"Jan Vanaverbeke","profile_url":"https://independent.academia.edu/JanVanaverbeke?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_12046469 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="12046469"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 12046469, container: ".js-paper-rank-work_12046469", }); 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$(".js-view-count[data-work-id=12046469]").text(description); $(".js-view-count-work_12046469").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_12046469").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="12046469"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">21</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="1361" rel="nofollow" href="https://www.academia.edu/Documents/in/Biogeochemistry">Biogeochemistry</a>, <script data-card-contents-for-ri="1361" type="text/json">{"id":1361,"name":"Biogeochemistry","url":"https://www.academia.edu/Documents/in/Biogeochemistry?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="11417" rel="nofollow" href="https://www.academia.edu/Documents/in/Population_Dynamics">Population Dynamics</a>, <script data-card-contents-for-ri="11417" type="text/json">{"id":11417,"name":"Population Dynamics","url":"https://www.academia.edu/Documents/in/Population_Dynamics?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17825" rel="nofollow" href="https://www.academia.edu/Documents/in/Biodiversity">Biodiversity</a>, <script data-card-contents-for-ri="17825" type="text/json">{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="18844" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_And_Environmental_Pollution">Marine And Environmental Pollution</a><script data-card-contents-for-ri="18844" type="text/json">{"id":18844,"name":"Marine And Environmental Pollution","url":"https://www.academia.edu/Documents/in/Marine_And_Environmental_Pollution?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=12046469]'), work: {"id":12046469,"title":"Sediment-related distribution patterns of nematodes and macrofauna: Two sides of the benthic coin?","created_at":"2015-04-21T06:03:19.065-07:00","url":"https://www.academia.edu/12046469/Sediment_related_distribution_patterns_of_nematodes_and_macrofauna_Two_sides_of_the_benthic_coin?f_ri=192294","dom_id":"work_12046469","summary":"We investigated the sediment-related distribution of both nematodes and macrofauna on the Belgian part of the North Sea (Southern Bight of the North Sea) in order to evaluate whether both faunal groups reflect similar patterns in community composition and diversity. Fine-grained sediments (median grain size \u003c200 mm) were inhabited by nematode communities characterised by a low diversity and dominated by non-selective deposit-feeding nematodes. Nematode communities from coarser sediments were significantly different in terms of community composition and diversity. Moreover, all nematode feeding types were present in coarser sediments. These differences were explained by the contrasting biogeochemical processes prevailing in both sediment types, rather than granulometry and food availability per se. Macrofaunal distribution patterns were different from those of the nematode communities and seem to be related to water column processes (SPM loading, food availability, hydrodynamic stress) that promote the establishment of diverse communities in the coarser sediments but not in the finest sediments. This suggests that data on nematodes and macrofauna reveal different, complementary aspects of the factors structuring the benthic ecosystem that can be of importance in assessing the ecological status of the seafloor.","downloadable_attachments":[{"id":46394338,"asset_id":12046469,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":30025256,"first_name":"Jan","last_name":"Vanaverbeke","domain_name":"independent","page_name":"JanVanaverbeke","display_name":"Jan Vanaverbeke","profile_url":"https://independent.academia.edu/JanVanaverbeke?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":1361,"name":"Biogeochemistry","url":"https://www.academia.edu/Documents/in/Biogeochemistry?f_ri=192294","nofollow":true},{"id":11417,"name":"Population Dynamics","url":"https://www.academia.edu/Documents/in/Population_Dynamics?f_ri=192294","nofollow":true},{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity?f_ri=192294","nofollow":true},{"id":18844,"name":"Marine And Environmental Pollution","url":"https://www.academia.edu/Documents/in/Marine_And_Environmental_Pollution?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":109828,"name":"Fauna","url":"https://www.academia.edu/Documents/in/Fauna?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":186099,"name":"Grain size","url":"https://www.academia.edu/Documents/in/Grain_size?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":192581,"name":"Food Availability","url":"https://www.academia.edu/Documents/in/Food_Availability?f_ri=192294"},{"id":236377,"name":"Spatial Distribution","url":"https://www.academia.edu/Documents/in/Spatial_Distribution?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":322539,"name":"Benthos","url":"https://www.academia.edu/Documents/in/Benthos?f_ri=192294"},{"id":373754,"name":"Ecosystem","url":"https://www.academia.edu/Documents/in/Ecosystem?f_ri=192294"},{"id":377566,"name":"Aquatic organisms","url":"https://www.academia.edu/Documents/in/Aquatic_organisms?f_ri=192294"},{"id":529173,"name":"Nematoda","url":"https://www.academia.edu/Documents/in/Nematoda?f_ri=192294"},{"id":531422,"name":"North Sea","url":"https://www.academia.edu/Documents/in/North_Sea?f_ri=192294"},{"id":1006903,"name":"Community Composition","url":"https://www.academia.edu/Documents/in/Community_Composition?f_ri=192294"},{"id":1033644,"name":"Factor structure","url":"https://www.academia.edu/Documents/in/Factor_structure?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_54285636" data-work_id="54285636" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/54285636/The_distribution_of_benthic_biomass_in_hadal_trenches_a_modelling_approach_to_investigate_the_effect_of_vertical_and_lateral_organic_matter_transport_to_the_seafloor">The distribution of benthic biomass in hadal trenches: a modelling approach to investigate the effect of vertical and lateral organic matter transport to the seafloor</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Most of our knowledge about deep-sea habitats is limited to bathyal (200-3000 m) and abyssal depths (3000-6000 m), while relatively little is known about the hadal zone (6000-11,000 m). The basic paradigm for the distribution of deep... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_54285636" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Most of our knowledge about deep-sea habitats is limited to bathyal (200-3000 m) and abyssal depths (3000-6000 m), while relatively little is known about the hadal zone (6000-11,000 m). The basic paradigm for the distribution of deep seafloor biomass suggests that the reduction in biomass and average body size of benthic animals along depth gradients is mainly related to surface productivity and remineralisation of sinking particulate organic carbon with depth. However, there is evidence that this pattern is somewhat reversed in hadal trenches by the funnelling of organic sediments, which would result in increased food availability along the axis of the trenches and towards their deeper regions. Therefore, despite the extreme hydrostatic pressure and remoteness from the pelagic food supply, it is hypothesized that biomass can increase with depth in hadal trenches. We developed a numerical model of gravitational lateral sediment transport along the seafloor as a function of slope, using the Kermadec Trench, near New Zealand, as a test environment. We propose that local topography (at a scale of tens of kilometres) and trench shape can be used to provide useful estimates of local accumulation of food and, therefore, patterns of benthic biomass. Orientation and steepness of local slopes are the drivers of organic sediment accumulation in the model, which result in higher biomass along the axis of the trench, especially in the deepest spots, and lower biomass on the slopes, from which most sediment is removed. The model outputs for the Kermadec Trench are in agreement with observations suggesting the occurrence of a funnelling effect and substantial spatial variability in biomass inside a trench. Further trench surveys will be needed to determine the degree to which seafloor currents are important compared with the gravity-driven transport modelled here. These outputs can also benefit future hadal investigations by highlighting areas of potential biological interest, on which to focus sampling effort. Comprehensive exploration of hadal trenches will, in turn, provide datasets for improving the model parameters and increasing predictive power.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/54285636" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="9ef75b2b8fe3b101bb992e08e31cd61a" rel="nofollow" data-download="{"attachment_id":70723256,"asset_id":54285636,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/70723256/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="7897868" href="https://whitman.academia.edu/PaulYancey">Paul Yancey</a><script data-card-contents-for-user="7897868" type="text/json">{"id":7897868,"first_name":"Paul","last_name":"Yancey","domain_name":"whitman","page_name":"PaulYancey","display_name":"Paul Yancey","profile_url":"https://whitman.academia.edu/PaulYancey?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_54285636 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="54285636"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 54285636, container: ".js-paper-rank-work_54285636", }); 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The basic paradigm for the distribution of deep seafloor biomass suggests that the reduction in biomass and average body size of benthic animals along depth gradients is mainly related to surface productivity and remineralisation of sinking particulate organic carbon with depth. However, there is evidence that this pattern is somewhat reversed in hadal trenches by the funnelling of organic sediments, which would result in increased food availability along the axis of the trenches and towards their deeper regions. Therefore, despite the extreme hydrostatic pressure and remoteness from the pelagic food supply, it is hypothesized that biomass can increase with depth in hadal trenches. We developed a numerical model of gravitational lateral sediment transport along the seafloor as a function of slope, using the Kermadec Trench, near New Zealand, as a test environment. We propose that local topography (at a scale of tens of kilometres) and trench shape can be used to provide useful estimates of local accumulation of food and, therefore, patterns of benthic biomass. Orientation and steepness of local slopes are the drivers of organic sediment accumulation in the model, which result in higher biomass along the axis of the trench, especially in the deepest spots, and lower biomass on the slopes, from which most sediment is removed. The model outputs for the Kermadec Trench are in agreement with observations suggesting the occurrence of a funnelling effect and substantial spatial variability in biomass inside a trench. Further trench surveys will be needed to determine the degree to which seafloor currents are important compared with the gravity-driven transport modelled here. These outputs can also benefit future hadal investigations by highlighting areas of potential biological interest, on which to focus sampling effort. Comprehensive exploration of hadal trenches will, in turn, provide datasets for improving the model parameters and increasing predictive power.","downloadable_attachments":[{"id":70723256,"asset_id":54285636,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":7897868,"first_name":"Paul","last_name":"Yancey","domain_name":"whitman","page_name":"PaulYancey","display_name":"Paul Yancey","profile_url":"https://whitman.academia.edu/PaulYancey?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry?f_ri=192294","nofollow":true},{"id":415,"name":"Oceanography","url":"https://www.academia.edu/Documents/in/Oceanography?f_ri=192294","nofollow":true},{"id":90016,"name":"Topography","url":"https://www.academia.edu/Documents/in/Topography?f_ri=192294","nofollow":true},{"id":189028,"name":"Marine Sciences","url":"https://www.academia.edu/Documents/in/Marine_Sciences?f_ri=192294","nofollow":true},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":1188997,"name":"C","url":"https://www.academia.edu/Documents/in/C?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_51045665" data-work_id="51045665" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/51045665/Water_Quality_and_Exurbanization_in_Southern_Appalachian_Streams">Water Quality and Exurbanization in Southern Appalachian Streams</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div 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href="https://www.academia.edu/48118611/Diversification_of_stream_invertebrate_communities_by_large_wood">Diversification of stream invertebrate communities by large wood</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/48118611" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2abede5d56841aa7dae356f2a7dafde4" rel="nofollow" data-download="{"attachment_id":66896712,"asset_id":48118611,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen 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itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/9514419/Distribution_of_freshwater_macroinvertebrates_in_streams_with_dams_and_associated_reservoirs_on_a_subtropical_oceanic_island_off_southern_Japan">Distribution of freshwater macroinvertebrates in streams with dams and associated reservoirs on a subtropical oceanic island off southern Japan</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The conservation of endemic fauna in freshwater ecosystems is a topical issue on small oceanic islands. Because these endemics have limited distributions, they are more vulnerable to extinction. This study is the first to clarify the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_9514419" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The conservation of endemic fauna in freshwater ecosystems is a topical issue on small oceanic islands. Because these endemics have limited distributions, they are more vulnerable to extinction. This study is the first to clarify the distribution of freshwater macroinvertebrates including endemic and alien species in streams with dams and associated reservoirs on the Ogasawara Islands in the northwestern Pacific Ocean. In 2007, we conducted a field survey in streams and reservoirs of the Yatsuse River system and collected 22 taxonomic groups from 13 stations. Hierarchal cluster analysis and non-metric multi-dimensional scaling (NMDS) were performed for the presence/absence data of the macroinvertebrates, and the results indicated that (1) most of endemic species were present in inlet streams of dam reservoirs, (2) these endemic species were absent in the bottom sediments of the reservoirs because of oxygen depletion and (3) dams may be barriers to the migration of some species of amphidromous crustaceans. Because human modifications, such as dams and associated reservoirs, on a small oceanic island can rapidly result in fragmentation or loss of freshwater habitats of endemic species, the remaining habitat of these species, such as headwater streams, must be protected and preserved to avoid species extinction.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/9514419" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2ac4f2f0a26df864a2a30de6c5b64f18" rel="nofollow" data-download="{"attachment_id":35906602,"asset_id":9514419,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/35906602/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="22324316" href="https://independent.academia.edu/KiyoshiSatake">Kiyoshi Satake</a><script data-card-contents-for-user="22324316" type="text/json">{"id":22324316,"first_name":"Kiyoshi","last_name":"Satake","domain_name":"independent","page_name":"KiyoshiSatake","display_name":"Kiyoshi Satake","profile_url":"https://independent.academia.edu/KiyoshiSatake?f_ri=192294","photo":"https://0.academia-photos.com/22324316/9752731/10864658/s65_kiyoshi.satake.jpg_oh_79331aa52506140bf32ea0997cb4a17d_oe_562fffc1___gda___1444971149_c21ff7cdd27108b2214d7727548488a7"}</script></span></span></li><li class="js-paper-rank-work_9514419 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="9514419"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 9514419, container: ".js-paper-rank-work_9514419", }); 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$(".js-view-count[data-work-id=9514419]").text(description); $(".js-view-count-work_9514419").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_9514419").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="9514419"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="1999" rel="nofollow" href="https://www.academia.edu/Documents/in/Limnology">Limnology</a>, <script data-card-contents-for-ri="1999" type="text/json">{"id":1999,"name":"Limnology","url":"https://www.academia.edu/Documents/in/Limnology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="192294" rel="nofollow" href="https://www.academia.edu/Documents/in/Sediment">Sediment</a>, <script data-card-contents-for-ri="192294" type="text/json">{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="193156" rel="nofollow" href="https://www.academia.edu/Documents/in/Reservoirs">Reservoirs</a>, <script data-card-contents-for-ri="193156" type="text/json">{"id":193156,"name":"Reservoirs","url":"https://www.academia.edu/Documents/in/Reservoirs?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="211405" rel="nofollow" href="https://www.academia.edu/Documents/in/Endemic_species">Endemic species</a><script data-card-contents-for-ri="211405" type="text/json">{"id":211405,"name":"Endemic species","url":"https://www.academia.edu/Documents/in/Endemic_species?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=9514419]'), work: {"id":9514419,"title":"Distribution of freshwater macroinvertebrates in streams with dams and associated reservoirs on a subtropical oceanic island off southern Japan","created_at":"2014-11-26T14:58:44.972-08:00","url":"https://www.academia.edu/9514419/Distribution_of_freshwater_macroinvertebrates_in_streams_with_dams_and_associated_reservoirs_on_a_subtropical_oceanic_island_off_southern_Japan?f_ri=192294","dom_id":"work_9514419","summary":"The conservation of endemic fauna in freshwater ecosystems is a topical issue on small oceanic islands. Because these endemics have limited distributions, they are more vulnerable to extinction. This study is the first to clarify the distribution of freshwater macroinvertebrates including endemic and alien species in streams with dams and associated reservoirs on the Ogasawara Islands in the northwestern Pacific Ocean. In 2007, we conducted a field survey in streams and reservoirs of the Yatsuse River system and collected 22 taxonomic groups from 13 stations. Hierarchal cluster analysis and non-metric multi-dimensional scaling (NMDS) were performed for the presence/absence data of the macroinvertebrates, and the results indicated that (1) most of endemic species were present in inlet streams of dam reservoirs, (2) these endemic species were absent in the bottom sediments of the reservoirs because of oxygen depletion and (3) dams may be barriers to the migration of some species of amphidromous crustaceans. Because human modifications, such as dams and associated reservoirs, on a small oceanic island can rapidly result in fragmentation or loss of freshwater habitats of endemic species, the remaining habitat of these species, such as headwater streams, must be protected and preserved to avoid species extinction.","downloadable_attachments":[{"id":35906602,"asset_id":9514419,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":22324316,"first_name":"Kiyoshi","last_name":"Satake","domain_name":"independent","page_name":"KiyoshiSatake","display_name":"Kiyoshi Satake","profile_url":"https://independent.academia.edu/KiyoshiSatake?f_ri=192294","photo":"https://0.academia-photos.com/22324316/9752731/10864658/s65_kiyoshi.satake.jpg_oh_79331aa52506140bf32ea0997cb4a17d_oe_562fffc1___gda___1444971149_c21ff7cdd27108b2214d7727548488a7"}],"research_interests":[{"id":1999,"name":"Limnology","url":"https://www.academia.edu/Documents/in/Limnology?f_ri=192294","nofollow":true},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294","nofollow":true},{"id":193156,"name":"Reservoirs","url":"https://www.academia.edu/Documents/in/Reservoirs?f_ri=192294","nofollow":true},{"id":211405,"name":"Endemic species","url":"https://www.academia.edu/Documents/in/Endemic_species?f_ri=192294","nofollow":true},{"id":239605,"name":"Introduced species","url":"https://www.academia.edu/Documents/in/Introduced_species?f_ri=192294"},{"id":378051,"name":"Streams","url":"https://www.academia.edu/Documents/in/Streams?f_ri=192294"},{"id":604905,"name":"Oceanic Islands","url":"https://www.academia.edu/Documents/in/Oceanic_Islands?f_ri=192294"},{"id":1872418,"name":"Subtropics","url":"https://www.academia.edu/Documents/in/Subtropics?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_67788532" data-work_id="67788532" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/67788532/Case_Study_Efficiency_of_Slit_Check_Dams_In_the_Mountain_Region_of_Versilia_Basin">Case Study: Efficiency of Slit-Check Dams In the Mountain Region of Versilia Basin</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_67788532" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and four slit-check dams built in two subcatchments of ...</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/67788532" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4e4b38184721053b454acfbd87f8ab40" rel="nofollow" data-download="{"attachment_id":78491842,"asset_id":67788532,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/78491842/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="208575930" href="https://independent.academia.edu/ParisEnio">Enio Paris</a><script data-card-contents-for-user="208575930" type="text/json">{"id":208575930,"first_name":"Enio","last_name":"Paris","domain_name":"independent","page_name":"ParisEnio","display_name":"Enio Paris","profile_url":"https://independent.academia.edu/ParisEnio?f_ri=192294","photo":"https://0.academia-photos.com/208575930/68562858/56946325/s65_enio.paris.png"}</script></span></span></li><li class="js-paper-rank-work_67788532 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="67788532"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 67788532, container: ".js-paper-rank-work_67788532", }); 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$(".js-view-count[data-work-id=67788532]").text(description); $(".js-view-count-work_67788532").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_67788532").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="67788532"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">12</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="73" rel="nofollow" href="https://www.academia.edu/Documents/in/Civil_Engineering">Civil Engineering</a>, <script data-card-contents-for-ri="73" type="text/json">{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="23890" rel="nofollow" href="https://www.academia.edu/Documents/in/Comparative_Study">Comparative Study</a>, <script data-card-contents-for-ri="23890" type="text/json">{"id":23890,"name":"Comparative Study","url":"https://www.academia.edu/Documents/in/Comparative_Study?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="65140" rel="nofollow" href="https://www.academia.edu/Documents/in/Models">Models</a><script data-card-contents-for-ri="65140" type="text/json">{"id":65140,"name":"Models","url":"https://www.academia.edu/Documents/in/Models?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=67788532]'), work: {"id":67788532,"title":"Case Study: Efficiency of Slit-Check Dams In the Mountain Region of Versilia Basin","created_at":"2022-01-10T22:46:29.487-08:00","url":"https://www.academia.edu/67788532/Case_Study_Efficiency_of_Slit_Check_Dams_In_the_Mountain_Region_of_Versilia_Basin?f_ri=192294","dom_id":"work_67788532","summary":"Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and four slit-check dams built in two subcatchments of ...","downloadable_attachments":[{"id":78491842,"asset_id":67788532,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":208575930,"first_name":"Enio","last_name":"Paris","domain_name":"independent","page_name":"ParisEnio","display_name":"Enio Paris","profile_url":"https://independent.academia.edu/ParisEnio?f_ri=192294","photo":"https://0.academia-photos.com/208575930/68562858/56946325/s65_enio.paris.png"}],"research_interests":[{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true},{"id":23890,"name":"Comparative Study","url":"https://www.academia.edu/Documents/in/Comparative_Study?f_ri=192294","nofollow":true},{"id":65140,"name":"Models","url":"https://www.academia.edu/Documents/in/Models?f_ri=192294","nofollow":true},{"id":81792,"name":"Flood","url":"https://www.academia.edu/Documents/in/Flood?f_ri=192294"},{"id":96047,"name":"Case Study","url":"https://www.academia.edu/Documents/in/Case_Study?f_ri=192294"},{"id":113500,"name":"Hydraulic Engineering","url":"https://www.academia.edu/Documents/in/Hydraulic_Engineering?f_ri=192294"},{"id":134943,"name":"Dam","url":"https://www.academia.edu/Documents/in/Dam?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":219927,"name":"Efficiency","url":"https://www.academia.edu/Documents/in/Efficiency?f_ri=192294"},{"id":239810,"name":"Field Study","url":"https://www.academia.edu/Documents/in/Field_Study?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_60673968" data-work_id="60673968" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/60673968/El_yacimiento_achelense_de_As_G%C3%A1ndaras_de_Budi%C3%B1o_La_industria_en_facies_fluviales">El yacimiento achelense de As Gándaras de Budiño. La industria en facies fluviales</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">As Gándaras de Budiño es uno de los yacimientos achelenses más conocidos de la Península Ibérica, aunque no hay publicaciones recientes sobre su industria, contexto estratigráfico o cronología. En este artículo se estudian los materiales... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_60673968" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">As Gándaras de Budiño es uno de los yacimientos achelenses más conocidos de la Península Ibérica, aunque no hay publicaciones recientes sobre su industria, contexto estratigráfico o cronología. En este artículo se estudian los materiales líticos inéditos contenidos en depósitos fluviales excavados por Julio Vidal Encinas a comienzos de los años 80. Este lote de materiales presenta todas las características de las industrias achelenses del Pleistoceno Medio peninsular. Los sedimentos que contienen la industria se han formado en ambientes de media energía. La escasa alteración de los materiales indica que estos reposan en una posición similar a la original.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/60673968" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="98f34403e0f73a612add0e671a0bd7ba" rel="nofollow" data-download="{"attachment_id":74011481,"asset_id":60673968,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/74011481/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5672268" href="https://up-pt.academia.edu/SergioRodrigues">Sergio Monteiro-Rodrigues</a><script data-card-contents-for-user="5672268" type="text/json">{"id":5672268,"first_name":"Sergio","last_name":"Monteiro-Rodrigues","domain_name":"up-pt","page_name":"SergioRodrigues","display_name":"Sergio Monteiro-Rodrigues","profile_url":"https://up-pt.academia.edu/SergioRodrigues?f_ri=192294","photo":"https://0.academia-photos.com/5672268/6858932/7740492/s65_sergio.rodrigues.jpg"}</script></span></span></li><li class="js-paper-rank-work_60673968 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="60673968"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 60673968, container: ".js-paper-rank-work_60673968", }); 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$(".js-view-count[data-work-id=60673968]").text(description); $(".js-view-count-work_60673968").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_60673968").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="60673968"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">15</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="1034" rel="nofollow" href="https://www.academia.edu/Documents/in/Stratigraphy">Stratigraphy</a>, <script data-card-contents-for-ri="1034" type="text/json">{"id":1034,"name":"Stratigraphy","url":"https://www.academia.edu/Documents/in/Stratigraphy?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1706" rel="nofollow" href="https://www.academia.edu/Documents/in/Geoarchaeology">Geoarchaeology</a>, <script data-card-contents-for-ri="1706" type="text/json">{"id":1706,"name":"Geoarchaeology","url":"https://www.academia.edu/Documents/in/Geoarchaeology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="26087" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleolithic_Europe">Paleolithic Europe</a>, <script data-card-contents-for-ri="26087" type="text/json">{"id":26087,"name":"Paleolithic Europe","url":"https://www.academia.edu/Documents/in/Paleolithic_Europe?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28776" rel="nofollow" href="https://www.academia.edu/Documents/in/Acheulian_Archaeology_">Acheulian (Archaeology)</a><script data-card-contents-for-ri="28776" type="text/json">{"id":28776,"name":"Acheulian (Archaeology)","url":"https://www.academia.edu/Documents/in/Acheulian_Archaeology_?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=60673968]'), work: {"id":60673968,"title":"El yacimiento achelense de As Gándaras de Budiño. La industria en facies fluviales","created_at":"2021-11-01T03:27:24.096-07:00","url":"https://www.academia.edu/60673968/El_yacimiento_achelense_de_As_G%C3%A1ndaras_de_Budi%C3%B1o_La_industria_en_facies_fluviales?f_ri=192294","dom_id":"work_60673968","summary":"As Gándaras de Budiño es uno de los yacimientos achelenses más conocidos de la Península Ibérica, aunque no hay publicaciones recientes sobre su industria, contexto estratigráfico o cronología. En este artículo se estudian los materiales líticos inéditos contenidos en depósitos fluviales excavados por Julio Vidal Encinas a comienzos de los años 80. Este lote de materiales presenta todas las características de las industrias achelenses del Pleistoceno Medio peninsular. Los sedimentos que contienen la industria se han formado en ambientes de media energía. La escasa alteración de los materiales indica que estos reposan en una posición similar a la original.","downloadable_attachments":[{"id":74011481,"asset_id":60673968,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5672268,"first_name":"Sergio","last_name":"Monteiro-Rodrigues","domain_name":"up-pt","page_name":"SergioRodrigues","display_name":"Sergio Monteiro-Rodrigues","profile_url":"https://up-pt.academia.edu/SergioRodrigues?f_ri=192294","photo":"https://0.academia-photos.com/5672268/6858932/7740492/s65_sergio.rodrigues.jpg"}],"research_interests":[{"id":1034,"name":"Stratigraphy","url":"https://www.academia.edu/Documents/in/Stratigraphy?f_ri=192294","nofollow":true},{"id":1706,"name":"Geoarchaeology","url":"https://www.academia.edu/Documents/in/Geoarchaeology?f_ri=192294","nofollow":true},{"id":26087,"name":"Paleolithic Europe","url":"https://www.academia.edu/Documents/in/Paleolithic_Europe?f_ri=192294","nofollow":true},{"id":28776,"name":"Acheulian (Archaeology)","url":"https://www.academia.edu/Documents/in/Acheulian_Archaeology_?f_ri=192294","nofollow":true},{"id":28778,"name":"Lower Paleolithic","url":"https://www.academia.edu/Documents/in/Lower_Paleolithic?f_ri=192294"},{"id":38032,"name":"Lithic Technology (Archaeology)","url":"https://www.academia.edu/Documents/in/Lithic_Technology_Archaeology_?f_ri=192294"},{"id":66892,"name":"Chronology","url":"https://www.academia.edu/Documents/in/Chronology?f_ri=192294"},{"id":70979,"name":"Acheulean (Archaeology)","url":"https://www.academia.edu/Documents/in/Acheulean_Archaeology_?f_ri=192294"},{"id":85280,"name":"Industry","url":"https://www.academia.edu/Documents/in/Industry?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":202702,"name":"Form","url":"https://www.academia.edu/Documents/in/Form?f_ri=192294"},{"id":361743,"name":"Publication","url":"https://www.academia.edu/Documents/in/Publication?f_ri=192294"},{"id":529512,"name":"Complutum","url":"https://www.academia.edu/Documents/in/Complutum?f_ri=192294"},{"id":965904,"name":"Industrie","url":"https://www.academia.edu/Documents/in/Industrie?f_ri=192294"},{"id":1208706,"name":"Environment","url":"https://www.academia.edu/Documents/in/Environment?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_33910919" data-work_id="33910919" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/33910919/Tracing_pollution_and_recovery_using_sediments_in_an_urban_estuary_northern_Baltic_Sea_are_we_far_from_ecological_reference_conditions">Tracing pollution and recovery using sediments in an urban estuary, northern Baltic Sea: are we far from ecological reference conditions?</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">One of the primary challenges of the Water Framework Directive (WFD) of the European Union is to provide a guide for the recovery of surface waters from pollution. However, few studies deal with reference conditions according to the WFD... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_33910919" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">One of the primary challenges of the Water Framework Directive (WFD) of the European Union is to provide a guide for the recovery of surface waters from pollution. However, few studies deal with reference conditions according to the WFD in coastal waters. Using the urbanised Laajalahti Bay (Helsinki, Finland) as an example, reference conditions and pollution history were defined using the stratigraphy of diatoms, sediment geochemistry, stable isotopes, sedimentary pigments, long-term monitoring results of water quality, and nutrient-loading. Principal components analysis was used to generate a multidimensional index of water quality on the basis of the sediment data. We distinguished 5 phases: (1) a pre-industrial phase (before ca. 1815); (2) a phase of slight human disturbance (ca. 1815 to 1900); (3) an onset of anthropogenic impact (ca. 1900 to 1955); (4) a severe pollution phase (ca. 1955 to 1975); (5) basin recovery and a phase of internal loading (from ca. 1975 onwards). Phase 2 was used to define reference conditions. Phase 1 was not used as it occurred before the formation of the semi-enclosed bay by post-glacial isostatic land-uplift. There was good agreement between the sedimentary record and the water-quality data during Phase 4. Despite an improvement in water quality after the local municipal treatment plant closed in 1986, Laajalahti Bay is still far from reference conditions due to internal loading.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/33910919" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="da62077bbca8e11c504dd19160b2aea6" rel="nofollow" data-download="{"attachment_id":53881803,"asset_id":33910919,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/53881803/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="66508740" href="https://independent.academia.edu/KaarinaWeckstr%C3%B6m">Kaarina Weckström</a><script data-card-contents-for-user="66508740" type="text/json">{"id":66508740,"first_name":"Kaarina","last_name":"Weckström","domain_name":"independent","page_name":"KaarinaWeckström","display_name":"Kaarina Weckström","profile_url":"https://independent.academia.edu/KaarinaWeckstr%C3%B6m?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_33910919 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="33910919"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 33910919, container: ".js-paper-rank-work_33910919", }); 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$(".js-view-count[data-work-id=33910919]").text(description); $(".js-view-count-work_33910919").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_33910919").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="33910919"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="173" rel="nofollow" href="https://www.academia.edu/Documents/in/Zoology">Zoology</a>, <script data-card-contents-for-ri="173" type="text/json">{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4035" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_Ecology">Marine Ecology</a>, <script data-card-contents-for-ri="4035" type="text/json">{"id":4035,"name":"Marine Ecology","url":"https://www.academia.edu/Documents/in/Marine_Ecology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="9846" rel="nofollow" href="https://www.academia.edu/Documents/in/Ecology">Ecology</a>, <script data-card-contents-for-ri="9846" type="text/json">{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="89990" rel="nofollow" href="https://www.academia.edu/Documents/in/Estuaries">Estuaries</a><script data-card-contents-for-ri="89990" type="text/json">{"id":89990,"name":"Estuaries","url":"https://www.academia.edu/Documents/in/Estuaries?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=33910919]'), work: {"id":33910919,"title":"Tracing pollution and recovery using sediments in an urban estuary, northern Baltic Sea: are we far from ecological reference conditions?","created_at":"2017-07-17T12:41:11.845-07:00","url":"https://www.academia.edu/33910919/Tracing_pollution_and_recovery_using_sediments_in_an_urban_estuary_northern_Baltic_Sea_are_we_far_from_ecological_reference_conditions?f_ri=192294","dom_id":"work_33910919","summary":"One of the primary challenges of the Water Framework Directive (WFD) of the European Union is to provide a guide for the recovery of surface waters from pollution. However, few studies deal with reference conditions according to the WFD in coastal waters. Using the urbanised Laajalahti Bay (Helsinki, Finland) as an example, reference conditions and pollution history were defined using the stratigraphy of diatoms, sediment geochemistry, stable isotopes, sedimentary pigments, long-term monitoring results of water quality, and nutrient-loading. Principal components analysis was used to generate a multidimensional index of water quality on the basis of the sediment data. We distinguished 5 phases: (1) a pre-industrial phase (before ca. 1815); (2) a phase of slight human disturbance (ca. 1815 to 1900); (3) an onset of anthropogenic impact (ca. 1900 to 1955); (4) a severe pollution phase (ca. 1955 to 1975); (5) basin recovery and a phase of internal loading (from ca. 1975 onwards). Phase 2 was used to define reference conditions. Phase 1 was not used as it occurred before the formation of the semi-enclosed bay by post-glacial isostatic land-uplift. There was good agreement between the sedimentary record and the water-quality data during Phase 4. Despite an improvement in water quality after the local municipal treatment plant closed in 1986, Laajalahti Bay is still far from reference conditions due to internal loading.","downloadable_attachments":[{"id":53881803,"asset_id":33910919,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":66508740,"first_name":"Kaarina","last_name":"Weckström","domain_name":"independent","page_name":"KaarinaWeckström","display_name":"Kaarina Weckström","profile_url":"https://independent.academia.edu/KaarinaWeckstr%C3%B6m?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology?f_ri=192294","nofollow":true},{"id":4035,"name":"Marine Ecology","url":"https://www.academia.edu/Documents/in/Marine_Ecology?f_ri=192294","nofollow":true},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=192294","nofollow":true},{"id":89990,"name":"Estuaries","url":"https://www.academia.edu/Documents/in/Estuaries?f_ri=192294","nofollow":true},{"id":107083,"name":"Method","url":"https://www.academia.edu/Documents/in/Method?f_ri=192294"},{"id":121291,"name":"Recovery","url":"https://www.academia.edu/Documents/in/Recovery?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_6271267" data-work_id="6271267" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/6271267/Composition_and_distribution_of_polycyclic_aromatic_hydrocarbon_contamination_in_surficial_marine_sediments_from_Kitimat_Harbor_Canada">Composition and distribution of polycyclic aromatic hydrocarbon contamination in surficial marine sediments from Kitimat Harbor, Canada</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Polycyclic aromatic hydrocarbon (PAH) concentrations in 34 surface sediments along the Susquehanna River were investigated in 2000. The total concentrations of PAHs in the surface sediments of Lake Clarke, Lake Aldred, the upper Conowingo... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_6271267" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Polycyclic aromatic hydrocarbon (PAH) concentrations in 34 surface sediments along the Susquehanna River were investigated in 2000. The total concentrations of PAHs in the surface sediments of Lake Clarke, Lake Aldred, the upper Conowingo Reservoir, and the lower Conowingo Reservoir were 3.3 ± 1.5 lg g À1 (n = 9), 1.6 ± 1.3 lg g À1 (n = 4), 9.8 ± 5.5 lg g À1 (n = 7), and 4.0 ± 1.2 lg g À1 (n = 14), respectively. These represent the first comprehensive measurement of PAHs in Susquehanna River surface sediments. Overall, total PAH concentrations were relatively lower in Lake Aldred, which is more shallow and sloped, and significantly higher in the upper Conowingo Reservoir. The sediment PAH levels were related to river flow rates, which are indirectly correlated with the particle size of the surface sediments. Total PAH levels in all the studied sites were below the effects range median (ERM) of 44.8 lg g À1 with 38% (13 of the 34 sampling sites) exceeding the effects range low (ERL) of 4.02 lg g À1 . Principal component analysis indicated that variations in the PAH compound patterns of each reservoir decreased from upstream to downstream, indicating that the surface sediments were mixed along the Susquehanna River. The PAH patterns in the lower Conowingo Reservoir sediments were a combination of those upstream sources. Source analysis using isomer ratios as indicators suggested that PAHs in the Susquehanna River surface sediment are derived from the combustion of fossil fuels such as coal and gasoline with coal as the major source of contaminants.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/6271267" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="fdc046cfc2a0d382fb26de18b5a5f60c" rel="nofollow" data-download="{"attachment_id":48938757,"asset_id":6271267,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/48938757/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="9683812" href="https://langara.academia.edu/AndrewMosi">Andrew Mosi</a><script data-card-contents-for-user="9683812" type="text/json">{"id":9683812,"first_name":"Andrew","last_name":"Mosi","domain_name":"langara","page_name":"AndrewMosi","display_name":"Andrew Mosi","profile_url":"https://langara.academia.edu/AndrewMosi?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_6271267 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="6271267"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 6271267, container: ".js-paper-rank-work_6271267", }); 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The total concentrations of PAHs in the surface sediments of Lake Clarke, Lake Aldred, the upper Conowingo Reservoir, and the lower Conowingo Reservoir were 3.3 ± 1.5 lg g À1 (n = 9), 1.6 ± 1.3 lg g À1 (n = 4), 9.8 ± 5.5 lg g À1 (n = 7), and 4.0 ± 1.2 lg g À1 (n = 14), respectively. These represent the first comprehensive measurement of PAHs in Susquehanna River surface sediments. Overall, total PAH concentrations were relatively lower in Lake Aldred, which is more shallow and sloped, and significantly higher in the upper Conowingo Reservoir. The sediment PAH levels were related to river flow rates, which are indirectly correlated with the particle size of the surface sediments. Total PAH levels in all the studied sites were below the effects range median (ERM) of 44.8 lg g À1 with 38% (13 of the 34 sampling sites) exceeding the effects range low (ERL) of 4.02 lg g À1 . Principal component analysis indicated that variations in the PAH compound patterns of each reservoir decreased from upstream to downstream, indicating that the surface sediments were mixed along the Susquehanna River. The PAH patterns in the lower Conowingo Reservoir sediments were a combination of those upstream sources. Source analysis using isomer ratios as indicators suggested that PAHs in the Susquehanna River surface sediment are derived from the combustion of fossil fuels such as coal and gasoline with coal as the major source of contaminants.","downloadable_attachments":[{"id":48938757,"asset_id":6271267,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":9683812,"first_name":"Andrew","last_name":"Mosi","domain_name":"langara","page_name":"AndrewMosi","display_name":"Andrew Mosi","profile_url":"https://langara.academia.edu/AndrewMosi?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography?f_ri=192294","nofollow":true},{"id":5069,"name":"Principal Component 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It includes estuarine sedimentation, tidal inlets, beach morphodynamics, nearshore... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_47997760" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">This paper reviews research that has taken place on physical oceanography and sedimentology on New Zealand's estuaries and the inner shelf since c. 1967. It includes estuarine sedimentation, tidal inlets, beach morphodynamics, nearshore and inner shelf sedimentation, tides and coastal currents, numerical modelling, short-period waves, tsunamis, and storm surges. An extensive reference list covering both published and unpublished material is included. Formal teaching and research programmes dealing with coastal landforms and the processes that shape them were only introduced to New Zealand M91078</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/47997760" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="8959e22b3a1742dbac50e013ba286ba2" rel="nofollow" data-download="{"attachment_id":66838360,"asset_id":47997760,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/66838360/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31536844" href="https://independent.academia.edu/WillemDeLange">Willem De Lange</a><script data-card-contents-for-user="31536844" type="text/json">{"id":31536844,"first_name":"Willem","last_name":"De Lange","domain_name":"independent","page_name":"WillemDeLange","display_name":"Willem De Lange","profile_url":"https://independent.academia.edu/WillemDeLange?f_ri=192294","photo":"https://0.academia-photos.com/31536844/9323253/10391211/s65_willem.de_lange.jpg"}</script></span></span></li><li class="js-paper-rank-work_47997760 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="47997760"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 47997760, container: ".js-paper-rank-work_47997760", }); 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bacteria recently renamed Aliivibrio fischeri suffers from various bias and interferences, mainly due to physico-chemical... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4228834" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The classic Microtox® solid phase assay (MSPA) based on the inhibition of light production of the marine bacteria recently renamed Aliivibrio fischeri suffers from various bias and interferences, mainly due to physico-chemical characteristics of the tested solid phase. To precisely assess ecotoxicity of sediments, we have developed an alternative method, named Microtox® leachate phase assay (MLPA), in order to measure the action of dissolved pollutants in the aqueous phase. Two hypotheses were formulated to explain the observed difference between MSPA and MLPA results: a real ecotoxicity of the solid phase or the fixation of bacteria to fine particles and/or organic matter. To estimate the latter, flow cytometry analyses were performed with two fluorochromes (known for their ability to stain bacterial DNA), allowing correction of MSPA measurements and generation of new (corrected) IC50. Comparison of results of MLPA with the new IC50 MSPA allows differentiating real ecotoxic and fixation effect in classic MSPA especially for samples with high amount of fines and/or organic matter.► Correction of bias in the Microtox® solid phase assay. ► Estimation of bacterial loss in the Microtox® solid phase assay. ► Significant relationship between the bacterial loss and the percentage of fines.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4228834" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="09638b5be823f2df7d5183c7da10f31c" rel="nofollow" data-download="{"attachment_id":49978638,"asset_id":4228834,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49978638/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5120976" href="https://independent.academia.edu/KarenP%C3%A9rez">Karen Pérez</a><script data-card-contents-for-user="5120976" type="text/json">{"id":5120976,"first_name":"Karen","last_name":"Pérez","domain_name":"independent","page_name":"KarenPérez","display_name":"Karen Pérez","profile_url":"https://independent.academia.edu/KarenP%C3%A9rez?f_ri=192294","photo":"https://0.academia-photos.com/5120976/2244198/2624895/s65_karen.p_rez.jpg"}</script></span></span></li><li class="js-paper-rank-work_4228834 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4228834"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4228834, container: ".js-paper-rank-work_4228834", }); 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To precisely assess ecotoxicity of sediments, we have developed an alternative method, named Microtox® leachate phase assay (MLPA), in order to measure the action of dissolved pollutants in the aqueous phase. Two hypotheses were formulated to explain the observed difference between MSPA and MLPA results: a real ecotoxicity of the solid phase or the fixation of bacteria to fine particles and/or organic matter. To estimate the latter, flow cytometry analyses were performed with two fluorochromes (known for their ability to stain bacterial DNA), allowing correction of MSPA measurements and generation of new (corrected) IC50. Comparison of results of MLPA with the new IC50 MSPA allows differentiating real ecotoxic and fixation effect in classic MSPA especially for samples with high amount of fines and/or organic matter.► Correction of bias in the Microtox® solid phase assay. ► Estimation of bacterial loss in the Microtox® solid phase assay. ► Significant relationship between the bacterial loss and the percentage of fines.","downloadable_attachments":[{"id":49978638,"asset_id":4228834,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5120976,"first_name":"Karen","last_name":"Pérez","domain_name":"independent","page_name":"KarenPérez","display_name":"Karen Pérez","profile_url":"https://independent.academia.edu/KarenP%C3%A9rez?f_ri=192294","photo":"https://0.academia-photos.com/5120976/2244198/2624895/s65_karen.p_rez.jpg"}],"research_interests":[{"id":6599,"name":"Flow 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$(".js-view-count-work_9267801").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="9267801"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">25</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="400" rel="nofollow" href="https://www.academia.edu/Documents/in/Earth_Sciences">Earth Sciences</a>, <script data-card-contents-for-ri="400" type="text/json">{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="18496" rel="nofollow" href="https://www.academia.edu/Documents/in/Mining">Mining</a>, <script data-card-contents-for-ri="18496" type="text/json">{"id":18496,"name":"Mining","url":"https://www.academia.edu/Documents/in/Mining?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="47884" rel="nofollow" href="https://www.academia.edu/Documents/in/Biological_Sciences">Biological Sciences</a>, <script data-card-contents-for-ri="47884" type="text/json">{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="57697" rel="nofollow" href="https://www.academia.edu/Documents/in/Heavy_metals">Heavy metals</a><script data-card-contents-for-ri="57697" type="text/json">{"id":57697,"name":"Heavy metals","url":"https://www.academia.edu/Documents/in/Heavy_metals?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=9267801]'), work: {"id":9267801,"title":"Metal Bioavailability and Speciation in a Wetland Tailings Repository Amended with Biosolids Compost, Wood Ash, and Sulfate","created_at":"2014-11-12T02:09:34.081-08:00","url":"https://www.academia.edu/9267801/Metal_Bioavailability_and_Speciation_in_a_Wetland_Tailings_Repository_Amended_with_Biosolids_Compost_Wood_Ash_and_Sulfate?f_ri=192294","dom_id":"work_9267801","summary":null,"downloadable_attachments":[{"id":35533257,"asset_id":9267801,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":21300163,"first_name":"Kumi","last_name":"Pandya","domain_name":"independent","page_name":"KumiPandya","display_name":"Kumi Pandya","profile_url":"https://independent.academia.edu/KumiPandya?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":18496,"name":"Mining","url":"https://www.academia.edu/Documents/in/Mining?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true},{"id":57697,"name":"Heavy metals","url":"https://www.academia.edu/Documents/in/Heavy_metals?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":67661,"name":"Sewage sludge","url":"https://www.academia.edu/Documents/in/Sewage_sludge?f_ri=192294"},{"id":71578,"name":"Wood","url":"https://www.academia.edu/Documents/in/Wood?f_ri=192294"},{"id":83587,"name":"Wetland","url":"https://www.academia.edu/Documents/in/Wetland?f_ri=192294"},{"id":116579,"name":"Lead","url":"https://www.academia.edu/Documents/in/Lead?f_ri=192294"},{"id":146385,"name":"Land Reclamation","url":"https://www.academia.edu/Documents/in/Land_Reclamation?f_ri=192294"},{"id":147995,"name":"Lead Poisoning","url":"https://www.academia.edu/Documents/in/Lead_Poisoning?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":205461,"name":"Bioavailability","url":"https://www.academia.edu/Documents/in/Bioavailability?f_ri=192294"},{"id":297373,"name":"Environmental quality","url":"https://www.academia.edu/Documents/in/Environmental_quality?f_ri=192294"},{"id":373754,"name":"Ecosystem","url":"https://www.academia.edu/Documents/in/Ecosystem?f_ri=192294"},{"id":585436,"name":"Mine Tailings","url":"https://www.academia.edu/Documents/in/Mine_Tailings?f_ri=192294"},{"id":605600,"name":"Refuse disposal","url":"https://www.academia.edu/Documents/in/Refuse_disposal?f_ri=192294"},{"id":986862,"name":"Environment Quality","url":"https://www.academia.edu/Documents/in/Environment_Quality?f_ri=192294"},{"id":1133132,"name":"Environmental","url":"https://www.academia.edu/Documents/in/Environmental?f_ri=192294"},{"id":1136192,"name":"Biological Availability","url":"https://www.academia.edu/Documents/in/Biological_Availability?f_ri=192294"},{"id":1256664,"name":"Typhaceae","url":"https://www.academia.edu/Documents/in/Typhaceae?f_ri=192294"},{"id":1365470,"name":"Soil Pollutants","url":"https://www.academia.edu/Documents/in/Soil_Pollutants?f_ri=192294"},{"id":1676581,"name":"Mine Tailing","url":"https://www.academia.edu/Documents/in/Mine_Tailing?f_ri=192294"},{"id":2343202,"name":"Sagittaria","url":"https://www.academia.edu/Documents/in/Sagittaria?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_24129702" data-work_id="24129702" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/24129702/Levels_of_total_mercury_and_methylmercury_compounds_in_sediments_of_the_polluted_Elbe_River_influence_of_seasonally_and_spatially_varying_environmental_factors">Levels of total mercury and methylmercury compounds in sediments of the polluted Elbe River: influence of seasonally and spatially varying environmental factors</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The Elbe River system in Germany is severely polluted with mercury, including methylmercury compounds. In the vicinity of the city of Hamburg, content of total mercury and methylmercury compounds in sediments of 12 mg/kg and 35 pg/kg... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_24129702" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The Elbe River system in Germany is severely polluted with mercury, including methylmercury compounds. In the vicinity of the city of Hamburg, content of total mercury and methylmercury compounds in sediments of 12 mg/kg and 35 pg/kg (d.w.1 , respectively, are observed. Analyses of sediment samples from selected sites during different seasons indicate that levels of methylmercury compounds are dependent on microbial activity. CH,Hg+ content is high under conditions that stimulate Hg(II)-methylating microorganisms. Thus, levels are elevated where nutrient supplies and biological productivity are greatest. In addition, methylmercury content in the sediments increases with increasing abundance of acid volatile sulfide (AVS). Examination of seasonal effects shows larger amounts of methylmercury compounds under warm summer conditions than in cold winter and spring weather. Additional evidence indicates the importance of microbial activity for the production and occurrence of methylmercury compounds in sediments. A more detailed local cycle for mercury compounds is proposed, taking into account the data presented in this paper.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/24129702" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f905af4a22fc8d75bb9354c05a00a4d2" rel="nofollow" data-download="{"attachment_id":44488230,"asset_id":24129702,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44488230/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="46537445" href="https://trentu.academia.edu/HHintelmann">H. Hintelmann</a><script data-card-contents-for-user="46537445" type="text/json">{"id":46537445,"first_name":"H.","last_name":"Hintelmann","domain_name":"trentu","page_name":"HHintelmann","display_name":"H. 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In the vicinity of the city of Hamburg, content of total mercury and methylmercury compounds in sediments of 12 mg/kg and 35 pg/kg (d.w.1 , respectively, are observed. Analyses of sediment samples from selected sites during different seasons indicate that levels of methylmercury compounds are dependent on microbial activity. CH,Hg+ content is high under conditions that stimulate Hg(II)-methylating microorganisms. Thus, levels are elevated where nutrient supplies and biological productivity are greatest. In addition, methylmercury content in the sediments increases with increasing abundance of acid volatile sulfide (AVS). Examination of seasonal effects shows larger amounts of methylmercury compounds under warm summer conditions than in cold winter and spring weather. Additional evidence indicates the importance of microbial activity for the production and occurrence of methylmercury compounds in sediments. A more detailed local cycle for mercury compounds is proposed, taking into account the data presented in this paper.","downloadable_attachments":[{"id":44488230,"asset_id":24129702,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":46537445,"first_name":"H.","last_name":"Hintelmann","domain_name":"trentu","page_name":"HHintelmann","display_name":"H. Hintelmann","profile_url":"https://trentu.academia.edu/HHintelmann?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294","nofollow":true},{"id":57433,"name":"Seasonality","url":"https://www.academia.edu/Documents/in/Seasonality?f_ri=192294","nofollow":true},{"id":90017,"name":"Mercury","url":"https://www.academia.edu/Documents/in/Mercury?f_ri=192294","nofollow":true},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294","nofollow":true},{"id":584070,"name":"Mercury Cycle","url":"https://www.academia.edu/Documents/in/Mercury_Cycle?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_60233469" data-work_id="60233469" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/60233469/Shields_Entrainment_Criterion_in_Bridge_Hydraulics">Shields’ Entrainment Criterion in Bridge Hydraulics</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Two related problems of sediment hydraulics are addressed: ͑1͒ Inception of sediment transport for nearly uniform flow of both uniform and nonuniform sediment beds for two different sediment densities and grain sizes ranging from sand to... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_60233469" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Two related problems of sediment hydraulics are addressed: ͑1͒ Inception of sediment transport for nearly uniform flow of both uniform and nonuniform sediment beds for two different sediment densities and grain sizes ranging from sand to gravel, and ͑2͒ generalized inception conditions if elements are inserted in a plane sediment bed. The Shields' criterion is formulated with basic quantities involving gravity, viscosity, and densities of the two-phase flow. The results of the analysis relate to the viscous, the transition, and the fully turbulent regimes. The transition regime is verified with extended laboratory experiments. Then, these conditions are used as a basis for formulating a general stability criterion for loose bed hydraulics, and compared to detailed experiments involving pier and square elements located either at the channel side or at its axis. In addition, a generalized densimetric particle Froude number is introduced that accounts for both uniform sediments and mixtures. The engineering application of the present results is straightforward, given that basic parameters of hydraulics, sediment, and fluid are involved.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/60233469" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4eaf76c8859e23be7a0c6fcc7ee23178" rel="nofollow" data-download="{"attachment_id":73769123,"asset_id":60233469,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/73769123/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="134682530" href="https://independent.academia.edu/GiuseppeOliveto1">Giuseppe Oliveto</a><script data-card-contents-for-user="134682530" type="text/json">{"id":134682530,"first_name":"Giuseppe","last_name":"Oliveto","domain_name":"independent","page_name":"GiuseppeOliveto1","display_name":"Giuseppe Oliveto","profile_url":"https://independent.academia.edu/GiuseppeOliveto1?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_60233469 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="60233469"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 60233469, container: ".js-paper-rank-work_60233469", }); 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$(".js-view-count[data-work-id=60233469]").text(description); $(".js-view-count-work_60233469").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_60233469").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="60233469"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">14</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="73" rel="nofollow" href="https://www.academia.edu/Documents/in/Civil_Engineering">Civil Engineering</a>, <script data-card-contents-for-ri="73" type="text/json">{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2550" rel="nofollow" href="https://www.academia.edu/Documents/in/Hydraulics">Hydraulics</a>, <script data-card-contents-for-ri="2550" type="text/json">{"id":2550,"name":"Hydraulics","url":"https://www.academia.edu/Documents/in/Hydraulics?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="97696" rel="nofollow" href="https://www.academia.edu/Documents/in/Entrainment">Entrainment</a>, <script data-card-contents-for-ri="97696" type="text/json">{"id":97696,"name":"Entrainment","url":"https://www.academia.edu/Documents/in/Entrainment?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="113500" rel="nofollow" href="https://www.academia.edu/Documents/in/Hydraulic_Engineering">Hydraulic Engineering</a><script data-card-contents-for-ri="113500" type="text/json">{"id":113500,"name":"Hydraulic Engineering","url":"https://www.academia.edu/Documents/in/Hydraulic_Engineering?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=60233469]'), work: {"id":60233469,"title":"Shields’ Entrainment Criterion in Bridge Hydraulics","created_at":"2021-10-28T13:10:58.531-07:00","url":"https://www.academia.edu/60233469/Shields_Entrainment_Criterion_in_Bridge_Hydraulics?f_ri=192294","dom_id":"work_60233469","summary":"Two related problems of sediment hydraulics are addressed: ͑1͒ Inception of sediment transport for nearly uniform flow of both uniform and nonuniform sediment beds for two different sediment densities and grain sizes ranging from sand to gravel, and ͑2͒ generalized inception conditions if elements are inserted in a plane sediment bed. The Shields' criterion is formulated with basic quantities involving gravity, viscosity, and densities of the two-phase flow. The results of the analysis relate to the viscous, the transition, and the fully turbulent regimes. The transition regime is verified with extended laboratory experiments. Then, these conditions are used as a basis for formulating a general stability criterion for loose bed hydraulics, and compared to detailed experiments involving pier and square elements located either at the channel side or at its axis. In addition, a generalized densimetric particle Froude number is introduced that accounts for both uniform sediments and mixtures. The engineering application of the present results is straightforward, given that basic parameters of hydraulics, sediment, and fluid are involved.","downloadable_attachments":[{"id":73769123,"asset_id":60233469,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":134682530,"first_name":"Giuseppe","last_name":"Oliveto","domain_name":"independent","page_name":"GiuseppeOliveto1","display_name":"Giuseppe Oliveto","profile_url":"https://independent.academia.edu/GiuseppeOliveto1?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true},{"id":2550,"name":"Hydraulics","url":"https://www.academia.edu/Documents/in/Hydraulics?f_ri=192294","nofollow":true},{"id":97696,"name":"Entrainment","url":"https://www.academia.edu/Documents/in/Entrainment?f_ri=192294","nofollow":true},{"id":113500,"name":"Hydraulic Engineering","url":"https://www.academia.edu/Documents/in/Hydraulic_Engineering?f_ri=192294","nofollow":true},{"id":113501,"name":"Sediment transport","url":"https://www.academia.edu/Documents/in/Sediment_transport?f_ri=192294"},{"id":155133,"name":"Equation","url":"https://www.academia.edu/Documents/in/Equation?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":318566,"name":"Sedimentation","url":"https://www.academia.edu/Documents/in/Sedimentation?f_ri=192294"},{"id":620328,"name":"Sediment Transport","url":"https://www.academia.edu/Documents/in/Sediment_Transport-5?f_ri=192294"},{"id":862322,"name":"Channel Flow","url":"https://www.academia.edu/Documents/in/Channel_Flow?f_ri=192294"},{"id":1553623,"name":"Shielding Effect","url":"https://www.academia.edu/Documents/in/Shielding_Effect?f_ri=192294"},{"id":2223773,"name":"Hydraulic systems","url":"https://www.academia.edu/Documents/in/Hydraulic_systems?f_ri=192294"},{"id":2488034,"name":"Abutment","url":"https://www.academia.edu/Documents/in/Abutment?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_48399502" data-work_id="48399502" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/48399502/On_the_entrainment_of_sediment_and_initiation_of_bed_defects_insights_from_recent_developments_within_turbulent_boundary_layer_research">On the entrainment of sediment and initiation of bed defects: insights from recent developments within turbulent boundary layer research</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Sediment entrainment and the initiation of bed defects has commonly been ascribed to the impact of high velocity sweeps upon mobile sand beds. Results of visualization experiments suggest that these sweep impacts are grouped and may... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_48399502" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Sediment entrainment and the initiation of bed defects has commonly been ascribed to the impact of high velocity sweeps upon mobile sand beds. Results of visualization experiments suggest that these sweep impacts are grouped and may define 'patches' of entrainment upon a mobile bed that may be wider than an individual sweep impact. Additionally, the presence of longitudinal ribs of sediment generated by sweep impacts may stabilize the position of sweeps and low speed streaks. These observations are interpreted in the light of recent boundary layer research which suggests the formation of multiple hairpin shaped vortices within turbulent flows: these are postulated to generate multiple sweeps that manifest themselves as entrainment patches on a mobile bed. These features of the turbulent boundary layer and its modification by sweep generated sediment ridges can be used to propose a model for bed defect formation and the subsequent development of current ripples.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/48399502" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="7c90d4bff6d0873f11014c48f828b2a3" rel="nofollow" data-download="{"attachment_id":67032696,"asset_id":48399502,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/67032696/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="18068186" href="https://independent.academia.edu/BestJim">Jim Best</a><script data-card-contents-for-user="18068186" type="text/json">{"id":18068186,"first_name":"Jim","last_name":"Best","domain_name":"independent","page_name":"BestJim","display_name":"Jim Best","profile_url":"https://independent.academia.edu/BestJim?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_48399502 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="48399502"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 48399502, container: ".js-paper-rank-work_48399502", }); 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$(".js-view-count[data-work-id=48399502]").text(description); $(".js-view-count-work_48399502").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_48399502").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="48399502"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">15</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="420" rel="nofollow" href="https://www.academia.edu/Documents/in/Sedimentology">Sedimentology</a>, <script data-card-contents-for-ri="420" type="text/json">{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="16496" rel="nofollow" href="https://www.academia.edu/Documents/in/Fluid_Dynamics">Fluid Dynamics</a>, <script data-card-contents-for-ri="16496" type="text/json">{"id":16496,"name":"Fluid Dynamics","url":"https://www.academia.edu/Documents/in/Fluid_Dynamics?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="60194" rel="nofollow" href="https://www.academia.edu/Documents/in/Transport">Transport</a><script data-card-contents-for-ri="60194" type="text/json">{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=48399502]'), work: {"id":48399502,"title":"On the entrainment of sediment and initiation of bed defects: insights from recent developments within turbulent boundary layer research","created_at":"2021-05-04T17:11:55.766-07:00","url":"https://www.academia.edu/48399502/On_the_entrainment_of_sediment_and_initiation_of_bed_defects_insights_from_recent_developments_within_turbulent_boundary_layer_research?f_ri=192294","dom_id":"work_48399502","summary":"Sediment entrainment and the initiation of bed defects has commonly been ascribed to the impact of high velocity sweeps upon mobile sand beds. Results of visualization experiments suggest that these sweep impacts are grouped and may define 'patches' of entrainment upon a mobile bed that may be wider than an individual sweep impact. Additionally, the presence of longitudinal ribs of sediment generated by sweep impacts may stabilize the position of sweeps and low speed streaks. These observations are interpreted in the light of recent boundary layer research which suggests the formation of multiple hairpin shaped vortices within turbulent flows: these are postulated to generate multiple sweeps that manifest themselves as entrainment patches on a mobile bed. These features of the turbulent boundary layer and its modification by sweep generated sediment ridges can be used to propose a model for bed defect formation and the subsequent development of current ripples.","downloadable_attachments":[{"id":67032696,"asset_id":48399502,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":18068186,"first_name":"Jim","last_name":"Best","domain_name":"independent","page_name":"BestJim","display_name":"Jim Best","profile_url":"https://independent.academia.edu/BestJim?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true},{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=192294","nofollow":true},{"id":16496,"name":"Fluid Dynamics","url":"https://www.academia.edu/Documents/in/Fluid_Dynamics?f_ri=192294","nofollow":true},{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294","nofollow":true},{"id":65140,"name":"Models","url":"https://www.academia.edu/Documents/in/Models?f_ri=192294"},{"id":71082,"name":"Turbulent boundary layer","url":"https://www.academia.edu/Documents/in/Turbulent_boundary_layer?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":185718,"name":"Bedforms","url":"https://www.academia.edu/Documents/in/Bedforms?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":224515,"name":"ARENA","url":"https://www.academia.edu/Documents/in/ARENA?f_ri=192294"},{"id":337500,"name":"Velocity","url":"https://www.academia.edu/Documents/in/Velocity?f_ri=192294"},{"id":350162,"name":"SAND","url":"https://www.academia.edu/Documents/in/SAND?f_ri=192294"},{"id":685326,"name":"Boundary Layer","url":"https://www.academia.edu/Documents/in/Boundary_Layer?f_ri=192294"},{"id":775583,"name":"Shear","url":"https://www.academia.edu/Documents/in/Shear?f_ri=192294"},{"id":976620,"name":"Sedimentary Rocks","url":"https://www.academia.edu/Documents/in/Sedimentary_Rocks?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_45399170" data-work_id="45399170" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/45399170/%C3%89valuation_directe_des_flux_d_%C3%A9rosion_et_de_d%C3%A9p%C3%B4t_de_s%C3%A9diments_%C3%A0_partir_de_mesures_en_suivi_de_bou%C3%A9e_d%C3%A9rivante_dans_un_estuaire_macrotidal_application_%C3%A0_la_Seine">Évaluation directe des flux d’érosion et de dépôt de sédiments à partir de mesures en suivi de bouée dérivante dans un estuaire macrotidal ; application à la Seine</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Determination of sediment erosion and deposition fluxes from direct measurements associated with a drifting buoy in a tidal estuary, an application to the Seine (France). A direct evaluation of erosion and settling sediment fluxes, at the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_45399170" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Determination of sediment erosion and deposition fluxes from direct measurements associated with a drifting buoy in a tidal estuary, an application to the Seine (France). A direct evaluation of erosion and settling sediment fluxes, at the bottom boundary, is determined by measurements in a water column associated with a drifting buoy. The data were acquired during a high tide coefficient in the Seine estuary. The bed shear stress and the vertical sediment fluxes are regarded as independent variables. A new relation is proposed for calculating the total mass load of a given water column in a tidal estuary by knowing the friction velocity. © 2000 Académie des sciences / Éditions scientifiques et médicales Elsevier SAS sediment erosion / sediment deposition / sediment transportation / lagrangian coordinates Résumé -Une nouvelle méthode permettant l'évaluation directe des flux d'érosion et de dépôt de sédiments dans un estuaire macrotidal est proposée. Elle consiste à suivre les caractéristiques physiques, dont la charge solide, d'une colonne d'eau associée au déplacement d'une bouée dérivant dans l'estuaire de la Seine durant un cycle de marée de vive-eau. Cette démarche permet de considérer la contrainte de cisaillement sur le fond et le flux vertical des sédiments comme des variables indépendantes. Une relation entre la variation de la charge d'une colonne d'eau en matières en suspension et la vitesse de frottement sur le fond est suggérée. © 2000 Académie des sciences / Éditions scientifiques et médicales Elsevier SAS érosion de sédiment / dépôt de sédiment / transport sédimentaire / coordonnées lagrangiennes Abridged version * Correspondance et tirés à part : <a href="mailto:brun-cottan@geos.unicaen.fr" rel="nofollow">brun-cottan@geos.unicaen.fr</a> 265 C. R. Acad. Sci. Paris, Sciences de la Terre et des planètes / Earth and Planetary Sciences 331 (2000) 265-270</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/45399170" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="164e5c148026b460b264de2afb401ecd" rel="nofollow" data-download="{"attachment_id":65919208,"asset_id":45399170,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/65919208/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="32520361" href="https://independent.academia.edu/SylvainGuillou">Sylvain Guillou</a><script data-card-contents-for-user="32520361" type="text/json">{"id":32520361,"first_name":"Sylvain","last_name":"Guillou","domain_name":"independent","page_name":"SylvainGuillou","display_name":"Sylvain Guillou","profile_url":"https://independent.academia.edu/SylvainGuillou?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_45399170 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="45399170"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 45399170, container: ".js-paper-rank-work_45399170", }); 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$(".js-view-count[data-work-id=45399170]").text(description); $(".js-view-count-work_45399170").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_45399170").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="45399170"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">13</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="50010" rel="nofollow" href="https://www.academia.edu/Documents/in/Tides">Tides</a>, <script data-card-contents-for-ri="50010" type="text/json">{"id":50010,"name":"Tides","url":"https://www.academia.edu/Documents/in/Tides?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="60194" rel="nofollow" href="https://www.academia.edu/Documents/in/Transport">Transport</a>, <script data-card-contents-for-ri="60194" type="text/json">{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="84446" rel="nofollow" href="https://www.academia.edu/Documents/in/Erosion">Erosion</a><script data-card-contents-for-ri="84446" type="text/json">{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=45399170]'), work: {"id":45399170,"title":"Évaluation directe des flux d’érosion et de dépôt de sédiments à partir de mesures en suivi de bouée dérivante dans un estuaire macrotidal ; application à la Seine","created_at":"2021-03-06T12:53:02.008-08:00","url":"https://www.academia.edu/45399170/%C3%89valuation_directe_des_flux_d_%C3%A9rosion_et_de_d%C3%A9p%C3%B4t_de_s%C3%A9diments_%C3%A0_partir_de_mesures_en_suivi_de_bou%C3%A9e_d%C3%A9rivante_dans_un_estuaire_macrotidal_application_%C3%A0_la_Seine?f_ri=192294","dom_id":"work_45399170","summary":"Determination of sediment erosion and deposition fluxes from direct measurements associated with a drifting buoy in a tidal estuary, an application to the Seine (France). A direct evaluation of erosion and settling sediment fluxes, at the bottom boundary, is determined by measurements in a water column associated with a drifting buoy. The data were acquired during a high tide coefficient in the Seine estuary. The bed shear stress and the vertical sediment fluxes are regarded as independent variables. A new relation is proposed for calculating the total mass load of a given water column in a tidal estuary by knowing the friction velocity. © 2000 Académie des sciences / Éditions scientifiques et médicales Elsevier SAS sediment erosion / sediment deposition / sediment transportation / lagrangian coordinates Résumé -Une nouvelle méthode permettant l'évaluation directe des flux d'érosion et de dépôt de sédiments dans un estuaire macrotidal est proposée. Elle consiste à suivre les caractéristiques physiques, dont la charge solide, d'une colonne d'eau associée au déplacement d'une bouée dérivant dans l'estuaire de la Seine durant un cycle de marée de vive-eau. Cette démarche permet de considérer la contrainte de cisaillement sur le fond et le flux vertical des sédiments comme des variables indépendantes. Une relation entre la variation de la charge d'une colonne d'eau en matières en suspension et la vitesse de frottement sur le fond est suggérée. © 2000 Académie des sciences / Éditions scientifiques et médicales Elsevier SAS érosion de sédiment / dépôt de sédiment / transport sédimentaire / coordonnées lagrangiennes Abridged version * Correspondance et tirés à part : brun-cottan@geos.unicaen.fr 265 C. R. Acad. Sci. Paris, Sciences de la Terre et des planètes / Earth and Planetary Sciences 331 (2000) 265-270","downloadable_attachments":[{"id":65919208,"asset_id":45399170,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":32520361,"first_name":"Sylvain","last_name":"Guillou","domain_name":"independent","page_name":"SylvainGuillou","display_name":"Sylvain Guillou","profile_url":"https://independent.academia.edu/SylvainGuillou?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true},{"id":50010,"name":"Tides","url":"https://www.academia.edu/Documents/in/Tides?f_ri=192294","nofollow":true},{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294","nofollow":true},{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294","nofollow":true},{"id":134201,"name":"Deposition","url":"https://www.academia.edu/Documents/in/Deposition?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":175859,"name":"Shear Stress","url":"https://www.academia.edu/Documents/in/Shear_Stress?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":337500,"name":"Velocity","url":"https://www.academia.edu/Documents/in/Velocity?f_ri=192294"},{"id":504475,"name":"Flux","url":"https://www.academia.edu/Documents/in/Flux?f_ri=192294"},{"id":641565,"name":"Sediment Deposition","url":"https://www.academia.edu/Documents/in/Sediment_Deposition?f_ri=192294"},{"id":794946,"name":"Granulometry","url":"https://www.academia.edu/Documents/in/Granulometry?f_ri=192294"},{"id":898476,"name":"Lagrangian Coordinates","url":"https://www.academia.edu/Documents/in/Lagrangian_Coordinates?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_8505811" data-work_id="8505811" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/8505811/Modification_of_the_equilibrium_partitioning_approach_for_volatile_organic_compounds_in_sediment">Modification of the equilibrium partitioning approach for volatile organic compounds in sediment</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Although weakly hydrophobic chemicals such as volatile organic compounds (VOCs) tend not to persist in sediments, they may nevertheless be present in some sediments because of recent or ongoing releases. Standard methods are not available... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_8505811" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Although weakly hydrophobic chemicals such as volatile organic compounds (VOCs) tend not to persist in sediments, they may nevertheless be present in some sediments because of recent or ongoing releases. Standard methods are not available for assessing risks to benthic invertebrates due to VOCs in sediment. More strongly hydrophobic organic chemicals are frequently assessed by using the equilibrium partitioning (EqP) approach, which predicts the bioavailable fraction of chemical (the concentration dissolved in pore water) from the sediment-sorbed fraction, assuming that partitioning is at equilibrium. As typically applied, the EqP approach is ineffective for assessing VOCs in sediment, because the standard EqP equation fails to account for the contribution of dissolved chemical to the total chemical concentration in sediment. For chemicals with low organic carbon-water partition coefficients (KOCs), this results in nonsensical sediment-quality benchmarks that are more conservative (i.e., lower) than benchmarks calculated by assuming 100% bioavailability. A modified EqP equation is presented that accounts for the dissolved fraction of total chemical concentrations in sediment. Results of the standard and modified EqP equations converge with increasing KOC and are essentially identical at log KOC values exceeding approximately 3.5.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/8505811" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="32b2de1f72843ed8ba707baf15841aab" rel="nofollow" data-download="{"attachment_id":48073048,"asset_id":8505811,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/48073048/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="17412826" href="https://environcorp.academia.edu/PhyllisFuchsman">Phyllis Fuchsman</a><script data-card-contents-for-user="17412826" type="text/json">{"id":17412826,"first_name":"Phyllis","last_name":"Fuchsman","domain_name":"environcorp","page_name":"PhyllisFuchsman","display_name":"Phyllis Fuchsman","profile_url":"https://environcorp.academia.edu/PhyllisFuchsman?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_8505811 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="8505811"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 8505811, container: ".js-paper-rank-work_8505811", }); 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$(".js-view-count[data-work-id=8505811]").text(description); $(".js-view-count-work_8505811").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_8505811").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="8505811"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">16</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="2215" rel="nofollow" href="https://www.academia.edu/Documents/in/Water">Water</a>, <script data-card-contents-for-ri="2215" type="text/json">{"id":2215,"name":"Water","url":"https://www.academia.edu/Documents/in/Water?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24777" rel="nofollow" href="https://www.academia.edu/Documents/in/Benchmarking">Benchmarking</a>, <script data-card-contents-for-ri="24777" type="text/json">{"id":24777,"name":"Benchmarking","url":"https://www.academia.edu/Documents/in/Benchmarking?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="47884" rel="nofollow" href="https://www.academia.edu/Documents/in/Biological_Sciences">Biological Sciences</a>, <script data-card-contents-for-ri="47884" type="text/json">{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="58054" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Sciences">Environmental Sciences</a><script data-card-contents-for-ri="58054" type="text/json">{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=8505811]'), work: {"id":8505811,"title":"Modification of the equilibrium partitioning approach for volatile organic compounds in sediment","created_at":"2014-09-26T02:45:05.334-07:00","url":"https://www.academia.edu/8505811/Modification_of_the_equilibrium_partitioning_approach_for_volatile_organic_compounds_in_sediment?f_ri=192294","dom_id":"work_8505811","summary":"Although weakly hydrophobic chemicals such as volatile organic compounds (VOCs) tend not to persist in sediments, they may nevertheless be present in some sediments because of recent or ongoing releases. Standard methods are not available for assessing risks to benthic invertebrates due to VOCs in sediment. More strongly hydrophobic organic chemicals are frequently assessed by using the equilibrium partitioning (EqP) approach, which predicts the bioavailable fraction of chemical (the concentration dissolved in pore water) from the sediment-sorbed fraction, assuming that partitioning is at equilibrium. As typically applied, the EqP approach is ineffective for assessing VOCs in sediment, because the standard EqP equation fails to account for the contribution of dissolved chemical to the total chemical concentration in sediment. For chemicals with low organic carbon-water partition coefficients (KOCs), this results in nonsensical sediment-quality benchmarks that are more conservative (i.e., lower) than benchmarks calculated by assuming 100% bioavailability. A modified EqP equation is presented that accounts for the dissolved fraction of total chemical concentrations in sediment. Results of the standard and modified EqP equations converge with increasing KOC and are essentially identical at log KOC values exceeding approximately 3.5.","downloadable_attachments":[{"id":48073048,"asset_id":8505811,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":17412826,"first_name":"Phyllis","last_name":"Fuchsman","domain_name":"environcorp","page_name":"PhyllisFuchsman","display_name":"Phyllis Fuchsman","profile_url":"https://environcorp.academia.edu/PhyllisFuchsman?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":2215,"name":"Water","url":"https://www.academia.edu/Documents/in/Water?f_ri=192294","nofollow":true},{"id":24777,"name":"Benchmarking","url":"https://www.academia.edu/Documents/in/Benchmarking?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":205581,"name":"Partition Coefficient","url":"https://www.academia.edu/Documents/in/Partition_Coefficient?f_ri=192294"},{"id":205584,"name":"Solubility","url":"https://www.academia.edu/Documents/in/Solubility?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":343667,"name":"Theoretical Models","url":"https://www.academia.edu/Documents/in/Theoretical_Models?f_ri=192294"},{"id":736321,"name":"Environmental Pollutants","url":"https://www.academia.edu/Documents/in/Environmental_Pollutants?f_ri=192294"},{"id":882010,"name":"Environmental Toxicology and Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Toxicology_and_Chemistry?f_ri=192294"},{"id":1136192,"name":"Biological Availability","url":"https://www.academia.edu/Documents/in/Biological_Availability?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1297608,"name":"Organic Chemicals","url":"https://www.academia.edu/Documents/in/Organic_Chemicals?f_ri=192294"},{"id":1854642,"name":"Volatilization","url":"https://www.academia.edu/Documents/in/Volatilization?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_13037588" data-work_id="13037588" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/13037588/Development_of_a_multiresidue_method_for_analysis_of_majorFusarium_mycotoxins_in_corn_meal_using_liquid_chromatography_tandem_mass_spectrometry">Development of a multiresidue method for analysis of majorFusarium mycotoxins in corn meal using liquid chromatography/tandem mass spectrometry</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Because of the complexity of the sediment matrix, selective methods are necessary to identify and quantify different kinds of pesticides at a time. In this context, a multiresidue method based on isotope dilution and final analysis by... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_13037588" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Because of the complexity of the sediment matrix, selective methods are necessary to identify and quantify different kinds of pesticides at a time. In this context, a multiresidue method based on isotope dilution and final analysis by liquid chromatography-electrospray-tandem mass spectrometry (LC-ESI-MS/MS) was developed for the determination of 26 pesticides and transformation products in sediment. The method developed comprises pressurized liquid extraction (PLE) and further purification of the extract by solid phase extraction (SPE) prior to analysis. In the process of method optimization various SPE cartridges as well as PLE and SPE elution solvents were evaluated. Due to the relatively high volatility of some compounds (e.g., propanil), special attention was paid to the evaporation step. Experiments comparing different pressures and times during solvent evaporation were performed with the aim to improve the recovery of these compounds. Matrix effects were also studied even though they were corrected through the use of 23 deuterated compounds as surrogate standards for quantification. The analytical method developed showed good validation parameters in terms of linearity, sensitivity (limits of detection in the pg g −1 or low ng g −1 range and limits of determination below 80 ng g −1 ), accuracy (relative recoveries between 92 and 118%, except for malaoxon (66.5%)), and repeatability (relative standard deviations between 1.5 and 17%, for all compounds except the acidic herbicides). Its main advantage is the simultaneous analysis of pesticides with a large variety of physical-chemical properties, as well as its improved accuracy due to the use of the isotope dilution method. Application of the method to the analysis of 5 real samples from 4 different Spanish rivers revealed the presence of 5 of the 26 target compounds, being chlorpyrifos, diuron and diazinon the most ubiquitous, as expected, due to their high bioaccumulation and low mobility features.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/13037588" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="63b8a83311342c59f92fd1c561c71e30" rel="nofollow" data-download="{"attachment_id":45753074,"asset_id":13037588,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45753074/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="32272579" href="https://independent.academia.edu/RSamperi">Roberto Samperi</a><script data-card-contents-for-user="32272579" type="text/json">{"id":32272579,"first_name":"Roberto","last_name":"Samperi","domain_name":"independent","page_name":"RSamperi","display_name":"Roberto Samperi","profile_url":"https://independent.academia.edu/RSamperi?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_13037588 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="13037588"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 13037588, container: ".js-paper-rank-work_13037588", }); 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$(".js-view-count[data-work-id=13037588]").text(description); $(".js-view-count-work_13037588").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_13037588").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="13037588"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">22</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="48" rel="nofollow" href="https://www.academia.edu/Documents/in/Engineering">Engineering</a>, <script data-card-contents-for-ri="48" type="text/json">{"id":48,"name":"Engineering","url":"https://www.academia.edu/Documents/in/Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="400" rel="nofollow" href="https://www.academia.edu/Documents/in/Earth_Sciences">Earth Sciences</a>, <script data-card-contents-for-ri="400" type="text/json">{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="524" rel="nofollow" href="https://www.academia.edu/Documents/in/Analytical_Chemistry">Analytical Chemistry</a>, <script data-card-contents-for-ri="524" type="text/json">{"id":524,"name":"Analytical Chemistry","url":"https://www.academia.edu/Documents/in/Analytical_Chemistry?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="923" rel="nofollow" href="https://www.academia.edu/Documents/in/Technology">Technology</a><script data-card-contents-for-ri="923" type="text/json">{"id":923,"name":"Technology","url":"https://www.academia.edu/Documents/in/Technology?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=13037588]'), work: {"id":13037588,"title":"Development of a multiresidue method for analysis of majorFusarium mycotoxins in corn meal using liquid chromatography/tandem mass spectrometry","created_at":"2015-06-16T22:55:36.409-07:00","url":"https://www.academia.edu/13037588/Development_of_a_multiresidue_method_for_analysis_of_majorFusarium_mycotoxins_in_corn_meal_using_liquid_chromatography_tandem_mass_spectrometry?f_ri=192294","dom_id":"work_13037588","summary":"Because of the complexity of the sediment matrix, selective methods are necessary to identify and quantify different kinds of pesticides at a time. In this context, a multiresidue method based on isotope dilution and final analysis by liquid chromatography-electrospray-tandem mass spectrometry (LC-ESI-MS/MS) was developed for the determination of 26 pesticides and transformation products in sediment. The method developed comprises pressurized liquid extraction (PLE) and further purification of the extract by solid phase extraction (SPE) prior to analysis. In the process of method optimization various SPE cartridges as well as PLE and SPE elution solvents were evaluated. Due to the relatively high volatility of some compounds (e.g., propanil), special attention was paid to the evaporation step. Experiments comparing different pressures and times during solvent evaporation were performed with the aim to improve the recovery of these compounds. Matrix effects were also studied even though they were corrected through the use of 23 deuterated compounds as surrogate standards for quantification. The analytical method developed showed good validation parameters in terms of linearity, sensitivity (limits of detection in the pg g −1 or low ng g −1 range and limits of determination below 80 ng g −1 ), accuracy (relative recoveries between 92 and 118%, except for malaoxon (66.5%)), and repeatability (relative standard deviations between 1.5 and 17%, for all compounds except the acidic herbicides). Its main advantage is the simultaneous analysis of pesticides with a large variety of physical-chemical properties, as well as its improved accuracy due to the use of the isotope dilution method. Application of the method to the analysis of 5 real samples from 4 different Spanish rivers revealed the presence of 5 of the 26 target compounds, being chlorpyrifos, diuron and diazinon the most ubiquitous, as expected, due to their high bioaccumulation and low mobility features.","downloadable_attachments":[{"id":45753074,"asset_id":13037588,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":32272579,"first_name":"Roberto","last_name":"Samperi","domain_name":"independent","page_name":"RSamperi","display_name":"Roberto Samperi","profile_url":"https://independent.academia.edu/RSamperi?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":48,"name":"Engineering","url":"https://www.academia.edu/Documents/in/Engineering?f_ri=192294","nofollow":true},{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":524,"name":"Analytical Chemistry","url":"https://www.academia.edu/Documents/in/Analytical_Chemistry?f_ri=192294","nofollow":true},{"id":923,"name":"Technology","url":"https://www.academia.edu/Documents/in/Technology?f_ri=192294","nofollow":true},{"id":5769,"name":"Mass Spectrometry","url":"https://www.academia.edu/Documents/in/Mass_Spectrometry?f_ri=192294"},{"id":22843,"name":"Pesticide Residues","url":"https://www.academia.edu/Documents/in/Pesticide_Residues?f_ri=192294"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":53132,"name":"Analysis","url":"https://www.academia.edu/Documents/in/Analysis?f_ri=192294"},{"id":73618,"name":"Fusarium","url":"https://www.academia.edu/Documents/in/Fusarium?f_ri=192294"},{"id":85437,"name":"Pesticides","url":"https://www.academia.edu/Documents/in/Pesticides?f_ri=192294"},{"id":89724,"name":"Mycotoxins","url":"https://www.academia.edu/Documents/in/Mycotoxins?f_ri=192294"},{"id":163275,"name":"Tandem Mass Spectrometry","url":"https://www.academia.edu/Documents/in/Tandem_Mass_Spectrometry?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":225787,"name":"High Performance Liquid Chromatography","url":"https://www.academia.edu/Documents/in/High_Performance_Liquid_Chromatography?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":326380,"name":"Liquid Chromatography / Electrospray Ionization Mass Spectrometry","url":"https://www.academia.edu/Documents/in/Liquid_Chromatography_Electrospray_Ionization_Mass_Spectrometry?f_ri=192294"},{"id":370863,"name":"Zea mays","url":"https://www.academia.edu/Documents/in/Zea_mays?f_ri=192294"},{"id":398287,"name":"Liquid Chromatography","url":"https://www.academia.edu/Documents/in/Liquid_Chromatography?f_ri=192294"},{"id":430901,"name":"Isotope Dilution","url":"https://www.academia.edu/Documents/in/Isotope_Dilution?f_ri=192294"},{"id":570860,"name":"Food Contamination","url":"https://www.academia.edu/Documents/in/Food_Contamination?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1485193,"name":"Rapid","url":"https://www.academia.edu/Documents/in/Rapid?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_13964030 coauthored" data-work_id="13964030" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/13964030/Toxicity_of_Selenomethionine_and_Seleno_Contaminated_Sediment_to_the_Amphipod_Corophium_sp">Toxicity of Selenomethionine- and Seleno-Contaminated Sediment to the Amphipod Corophium sp</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The acute toxicity of four chemical species of selenium to juvenile amphipods (Corophium sp.) was assessed in water-only tests. The seleno-amino acid compounds seleno-L-methionine and seleno-DL-cystine were found to be more toxic (96-h LC... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_13964030" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The acute toxicity of four chemical species of selenium to juvenile amphipods (Corophium sp.) was assessed in water-only tests. The seleno-amino acid compounds seleno-L-methionine and seleno-DL-cystine were found to be more toxic (96-h LC 50 values of 1.5 and 12.7 g Se/L) than the inorganic selenite and selenate (96-h NOEC values of 58 and 116 g Se/L). New marine sediment testing procedures were developed using juvenile and adult Corophium sp. Both life stages were highly sensitive to seleno-L-methionine-spiked sediment. The juveniles were approximately 5ve times more sensitive, with a 10-day LC 50 of 1.6 g Se/g (dry weight) compared to 7.6 g Se/g (dry weight) for the adults. Sediment collected from three sites in Lake Macquarie, a marine barrier lagoon with elevated concentrations of total selenium, had no e4ect on the survival of adult Corophium over 10 days. The toxicity of seleno-L-methionine to other amphipod species occurring in Lake Macquarie was assessed in water-only tests, with Paracalliope australis being highly sensitive (96-h LC 50 2.58 g Se/L).</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/13964030" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d25d8a6446fdc680b0c2a0e5463c6837" rel="nofollow" data-download="{"attachment_id":44759505,"asset_id":13964030,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44759505/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33013485" href="https://independent.academia.edu/RossHyne">Ross Hyne</a><script data-card-contents-for-user="33013485" type="text/json">{"id":33013485,"first_name":"Ross","last_name":"Hyne","domain_name":"independent","page_name":"RossHyne","display_name":"Ross Hyne","profile_url":"https://independent.academia.edu/RossHyne?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-13964030">+1</span><div class="hidden js-additional-users-13964030"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/FleurPablo">Fleur Pablo</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-13964030'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-13964030').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_13964030 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="13964030"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 13964030, container: ".js-paper-rank-work_13964030", }); });</script></li><li class="js-percentile-work_13964030 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 13964030; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_13964030"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_13964030 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="13964030"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 13964030; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=13964030]").text(description); $(".js-view-count-work_13964030").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_13964030").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="13964030"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">14</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="7049" rel="nofollow" href="https://www.academia.edu/Documents/in/Crustacea">Crustacea</a>, <script data-card-contents-for-ri="7049" type="text/json">{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="58054" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Sciences">Environmental Sciences</a>, <script data-card-contents-for-ri="58054" type="text/json">{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="67405" rel="nofollow" href="https://www.academia.edu/Documents/in/Toxicity">Toxicity</a>, <script data-card-contents-for-ri="67405" type="text/json">{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="95519" rel="nofollow" href="https://www.academia.edu/Documents/in/Selenium">Selenium</a><script data-card-contents-for-ri="95519" type="text/json">{"id":95519,"name":"Selenium","url":"https://www.academia.edu/Documents/in/Selenium?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=13964030]'), work: {"id":13964030,"title":"Toxicity of Selenomethionine- and Seleno-Contaminated Sediment to the Amphipod Corophium sp","created_at":"2015-07-12T18:24:29.557-07:00","url":"https://www.academia.edu/13964030/Toxicity_of_Selenomethionine_and_Seleno_Contaminated_Sediment_to_the_Amphipod_Corophium_sp?f_ri=192294","dom_id":"work_13964030","summary":"The acute toxicity of four chemical species of selenium to juvenile amphipods (Corophium sp.) was assessed in water-only tests. The seleno-amino acid compounds seleno-L-methionine and seleno-DL-cystine were found to be more toxic (96-h LC 50 values of 1.5 and 12.7 g Se/L) than the inorganic selenite and selenate (96-h NOEC values of 58 and 116 g Se/L). New marine sediment testing procedures were developed using juvenile and adult Corophium sp. Both life stages were highly sensitive to seleno-L-methionine-spiked sediment. The juveniles were approximately 5ve times more sensitive, with a 10-day LC 50 of 1.6 g Se/g (dry weight) compared to 7.6 g Se/g (dry weight) for the adults. Sediment collected from three sites in Lake Macquarie, a marine barrier lagoon with elevated concentrations of total selenium, had no e4ect on the survival of adult Corophium over 10 days. The toxicity of seleno-L-methionine to other amphipod species occurring in Lake Macquarie was assessed in water-only tests, with Paracalliope australis being highly sensitive (96-h LC 50 2.58 g Se/L).","downloadable_attachments":[{"id":44759505,"asset_id":13964030,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33013485,"first_name":"Ross","last_name":"Hyne","domain_name":"independent","page_name":"RossHyne","display_name":"Ross Hyne","profile_url":"https://independent.academia.edu/RossHyne?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":33072336,"first_name":"Fleur","last_name":"Pablo","domain_name":"independent","page_name":"FleurPablo","display_name":"Fleur Pablo","profile_url":"https://independent.academia.edu/FleurPablo?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294","nofollow":true},{"id":95519,"name":"Selenium","url":"https://www.academia.edu/Documents/in/Selenium?f_ri=192294","nofollow":true},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":333942,"name":"Marine Sediment","url":"https://www.academia.edu/Documents/in/Marine_Sediment?f_ri=192294"},{"id":581688,"name":"Environmental Safety","url":"https://www.academia.edu/Documents/in/Environmental_Safety?f_ri=192294"},{"id":585573,"name":"Amino Acid Profile","url":"https://www.academia.edu/Documents/in/Amino_Acid_Profile?f_ri=192294"},{"id":802213,"name":"Lethal Dose","url":"https://www.academia.edu/Documents/in/Lethal_Dose?f_ri=192294"},{"id":980394,"name":"Acute Toxicity","url":"https://www.academia.edu/Documents/in/Acute_Toxicity?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1312021,"name":"Environmental Exposure","url":"https://www.academia.edu/Documents/in/Environmental_Exposure?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14432879 coauthored" data-work_id="14432879" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14432879/Climate_Change_Effects_on_Runoff_Catchment_Phosphorus_Loading_and_Lake_Ecological_State_and_Potential_Adaptations">Climate Change Effects on Runoff, Catchment Phosphorus Loading and Lake Ecological State, and Potential Adaptations</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Climate change may have profound eff ects on phosphorus (P) transport in streams and on lake eutrophication. Phosphorus loading from land to streams is expected to increase in northern temperate coastal regions due to higher winter... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_14432879" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Climate change may have profound eff ects on phosphorus (P) transport in streams and on lake eutrophication. Phosphorus loading from land to streams is expected to increase in northern temperate coastal regions due to higher winter rainfall and to a decline in warm temperate and arid climates. Model results suggest a 3.3 to 16.5% increase within the next 100 yr in the P loading of Danish streams depending on soil type and region. In lakes, higher eutrophication can be expected, reinforced by temperature-mediated higher P release from the sediment. Furthermore, a shift in fi sh community structure toward small and abundant plankti-benthivorous fi sh enhances predator control of zooplankton, resulting in higher phytoplankton biomass. Data from Danish lakes indicate increased chlorophyll a and phytoplankton biomass, higher dominance of dinophytes and cyanobacteria (most notably of nitrogen fi xing forms), but lower abundance of diatoms and chrysophytes, reduced size of copepods and cladocerans, and a tendency to reduced zooplankton biomass and zooplankton:phytoplankton biomass ratio when lakes warm. Higher P concentrations are also seen in warm arid lakes despite reduced external loading due to increased evapotranspiration and reduced infl ow. Th erefore, the critical loading for good ecological state in lakes has to be lowered in a future warmer climate. Th is calls for adaptation measures, which in the northern temperate zone should include improved P cycling in agriculture, reduced loading from point sources, and (re)-establishment of wetlands and riparian buff er zones. In the arid Southern Europe, restrictions on human use of water are also needed, not least on irrigation.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14432879" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="c837d38315bc71eadbb69abb8f5f1a67" rel="nofollow" data-download="{"attachment_id":44152098,"asset_id":14432879,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44152098/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33370999" href="https://au.academia.edu/MartinS%C3%B8ndergaard">Martin Søndergaard</a><script data-card-contents-for-user="33370999" type="text/json">{"id":33370999,"first_name":"Martin","last_name":"Søndergaard","domain_name":"au","page_name":"MartinSøndergaard","display_name":"Martin Søndergaard","profile_url":"https://au.academia.edu/MartinS%C3%B8ndergaard?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-14432879">+2</span><div class="hidden js-additional-users-14432879"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://au.academia.edu/HAndersen">Hans Andersen</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://au.academia.edu/BrianKronvang">Brian Kronvang</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-14432879'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-14432879').html(); 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Phosphorus loading from land to streams is expected to increase in northern temperate coastal regions due to higher winter rainfall and to a decline in warm temperate and arid climates. Model results suggest a 3.3 to 16.5% increase within the next 100 yr in the P loading of Danish streams depending on soil type and region. In lakes, higher eutrophication can be expected, reinforced by temperature-mediated higher P release from the sediment. Furthermore, a shift in fi sh community structure toward small and abundant plankti-benthivorous fi sh enhances predator control of zooplankton, resulting in higher phytoplankton biomass. Data from Danish lakes indicate increased chlorophyll a and phytoplankton biomass, higher dominance of dinophytes and cyanobacteria (most notably of nitrogen fi xing forms), but lower abundance of diatoms and chrysophytes, reduced size of copepods and cladocerans, and a tendency to reduced zooplankton biomass and zooplankton:phytoplankton biomass ratio when lakes warm. Higher P concentrations are also seen in warm arid lakes despite reduced external loading due to increased evapotranspiration and reduced infl ow. Th erefore, the critical loading for good ecological state in lakes has to be lowered in a future warmer climate. Th is calls for adaptation measures, which in the northern temperate zone should include improved P cycling in agriculture, reduced loading from point sources, and (re)-establishment of wetlands and riparian buff er zones. In the arid Southern Europe, restrictions on human use of water are also needed, not least on irrigation.","downloadable_attachments":[{"id":44152098,"asset_id":14432879,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33370999,"first_name":"Martin","last_name":"Søndergaard","domain_name":"au","page_name":"MartinSøndergaard","display_name":"Martin Søndergaard","profile_url":"https://au.academia.edu/MartinS%C3%B8ndergaard?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":33612429,"first_name":"Hans","last_name":"Andersen","domain_name":"au","page_name":"HAndersen","display_name":"Hans Andersen","profile_url":"https://au.academia.edu/HAndersen?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":33514405,"first_name":"Brian","last_name":"Kronvang","domain_name":"au","page_name":"BrianKronvang","display_name":"Brian Kronvang","profile_url":"https://au.academia.edu/BrianKronvang?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":1512,"name":"Climate 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Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":53108,"name":"Phosphorus","url":"https://www.academia.edu/Documents/in/Phosphorus?f_ri=192294"},{"id":54085,"name":"Denmark","url":"https://www.academia.edu/Documents/in/Denmark?f_ri=192294"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":64055,"name":"Water Supply","url":"https://www.academia.edu/Documents/in/Water_Supply?f_ri=192294"},{"id":99629,"name":"Evapotranspiration","url":"https://www.academia.edu/Documents/in/Evapotranspiration?f_ri=192294"},{"id":151091,"name":"Nitrogen","url":"https://www.academia.edu/Documents/in/Nitrogen?f_ri=192294"},{"id":154235,"name":"Community Structure","url":"https://www.academia.edu/Documents/in/Community_Structure?f_ri=192294"},{"id":187216,"name":"Zooplankton","url":"https://www.academia.edu/Documents/in/Zooplankton?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":210001,"name":"Climatic Change","url":"https://www.academia.edu/Documents/in/Climatic_Change?f_ri=192294"},{"id":274553,"name":"Climate Model","url":"https://www.academia.edu/Documents/in/Climate_Model?f_ri=192294"},{"id":297373,"name":"Environmental quality","url":"https://www.academia.edu/Documents/in/Environmental_quality?f_ri=192294"},{"id":343667,"name":"Theoretical Models","url":"https://www.academia.edu/Documents/in/Theoretical_Models?f_ri=192294"},{"id":369458,"name":"Greenhouse Effect","url":"https://www.academia.edu/Documents/in/Greenhouse_Effect?f_ri=192294"},{"id":373754,"name":"Ecosystem","url":"https://www.academia.edu/Documents/in/Ecosystem?f_ri=192294"},{"id":376196,"name":"Critical Loads","url":"https://www.academia.edu/Documents/in/Critical_Loads?f_ri=192294"},{"id":378051,"name":"Streams","url":"https://www.academia.edu/Documents/in/Streams?f_ri=192294"},{"id":407864,"name":"Predators","url":"https://www.academia.edu/Documents/in/Predators?f_ri=192294"},{"id":439435,"name":"Fresh water","url":"https://www.academia.edu/Documents/in/Fresh_water?f_ri=192294"},{"id":530872,"name":"Runoff","url":"https://www.academia.edu/Documents/in/Runoff?f_ri=192294"},{"id":611896,"name":"Predator control","url":"https://www.academia.edu/Documents/in/Predator_control?f_ri=192294"},{"id":617780,"name":"Soil Type","url":"https://www.academia.edu/Documents/in/Soil_Type?f_ri=192294"},{"id":727816,"name":"Soil Types","url":"https://www.academia.edu/Documents/in/Soil_Types?f_ri=192294"},{"id":986862,"name":"Environment Quality","url":"https://www.academia.edu/Documents/in/Environment_Quality?f_ri=192294"},{"id":1431418,"name":"Chlorophyll a","url":"https://www.academia.edu/Documents/in/Chlorophyll_a?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_77031694" data-work_id="77031694" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/77031694/Chemical_characterization_of_landfill_leachates_400_parameters_and_compounds">Chemical characterization of landfill leachates--400 parameters and compounds</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A large number of hazardous compounds can be expected to be present in landfill leachates, many of which have not yet been identified. Thus this study screened samples from 12 Swedish municipal landfill sites for 400 parameters and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_77031694" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A large number of hazardous compounds can be expected to be present in landfill leachates, many of which have not yet been identified. Thus this study screened samples from 12 Swedish municipal landfill sites for 400 parameters and compounds. More than 90 organic and metal organic compounds and 50 inorganic elements were detected, some of which seem to have not been detected before. Compounds detected include halogenated aliphatic compounds, benzene and alkylated benzenes, phenol and alkylated phenols, ethoxylates, polycyclic aromatic compounds, phthalic esters, chlorinated benzenes, chlorinated phenols, PCB, chlorinated dioxins and chlorinated furans, bromated flame-retardants, pesticides, organic tin, methyl mercury and heavy metals. The presence of this large number of hazardous compounds in landfill leachates should have a significant impact on future landfill risk assessments and the development of leachate treatment methods. We propose that future research should pay more atte...</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/77031694" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="5e5958058a550780cb695d92e3df8838" rel="nofollow" data-download="{"attachment_id":84541272,"asset_id":77031694,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/84541272/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="39821314" href="https://independent.academia.edu/CeciliaOman">Cecilia Oman</a><script data-card-contents-for-user="39821314" type="text/json">{"id":39821314,"first_name":"Cecilia","last_name":"Oman","domain_name":"independent","page_name":"CeciliaOman","display_name":"Cecilia Oman","profile_url":"https://independent.academia.edu/CeciliaOman?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_77031694 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="77031694"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 77031694, container: ".js-paper-rank-work_77031694", }); 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$(".js-view-count[data-work-id=77031694]").text(description); $(".js-view-count-work_77031694").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_77031694").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="77031694"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">20</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="55" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Engineering">Environmental Engineering</a>, <script data-card-contents-for-ri="55" type="text/json">{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="523" rel="nofollow" href="https://www.academia.edu/Documents/in/Chemistry">Chemistry</a>, <script data-card-contents-for-ri="523" type="text/json">{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="14085" rel="nofollow" href="https://www.academia.edu/Documents/in/Waste_Management">Waste Management</a>, <script data-card-contents-for-ri="14085" type="text/json">{"id":14085,"name":"Waste Management","url":"https://www.academia.edu/Documents/in/Waste_Management?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="16664" rel="nofollow" href="https://www.academia.edu/Documents/in/Risk_assessment">Risk assessment</a><script data-card-contents-for-ri="16664" type="text/json">{"id":16664,"name":"Risk assessment","url":"https://www.academia.edu/Documents/in/Risk_assessment?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=77031694]'), work: {"id":77031694,"title":"Chemical characterization of landfill leachates--400 parameters and compounds","created_at":"2022-04-19T23:56:42.743-07:00","url":"https://www.academia.edu/77031694/Chemical_characterization_of_landfill_leachates_400_parameters_and_compounds?f_ri=192294","dom_id":"work_77031694","summary":"A large number of hazardous compounds can be expected to be present in landfill leachates, many of which have not yet been identified. Thus this study screened samples from 12 Swedish municipal landfill sites for 400 parameters and compounds. More than 90 organic and metal organic compounds and 50 inorganic elements were detected, some of which seem to have not been detected before. Compounds detected include halogenated aliphatic compounds, benzene and alkylated benzenes, phenol and alkylated phenols, ethoxylates, polycyclic aromatic compounds, phthalic esters, chlorinated benzenes, chlorinated phenols, PCB, chlorinated dioxins and chlorinated furans, bromated flame-retardants, pesticides, organic tin, methyl mercury and heavy metals. The presence of this large number of hazardous compounds in landfill leachates should have a significant impact on future landfill risk assessments and the development of leachate treatment methods. We propose that future research should pay more atte...","downloadable_attachments":[{"id":84541272,"asset_id":77031694,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":39821314,"first_name":"Cecilia","last_name":"Oman","domain_name":"independent","page_name":"CeciliaOman","display_name":"Cecilia Oman","profile_url":"https://independent.academia.edu/CeciliaOman?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=192294","nofollow":true},{"id":14085,"name":"Waste Management","url":"https://www.academia.edu/Documents/in/Waste_Management?f_ri=192294","nofollow":true},{"id":16664,"name":"Risk assessment","url":"https://www.academia.edu/Documents/in/Risk_assessment?f_ri=192294","nofollow":true},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine?f_ri=192294"},{"id":44814,"name":"Sweden","url":"https://www.academia.edu/Documents/in/Sweden?f_ri=192294"},{"id":65590,"name":"Pesticide","url":"https://www.academia.edu/Documents/in/Pesticide?f_ri=192294"},{"id":85437,"name":"Pesticides","url":"https://www.academia.edu/Documents/in/Pesticides?f_ri=192294"},{"id":90017,"name":"Mercury","url":"https://www.academia.edu/Documents/in/Mercury?f_ri=192294"},{"id":111050,"name":"Heavy Metal","url":"https://www.academia.edu/Documents/in/Heavy_Metal?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":255058,"name":"Metals","url":"https://www.academia.edu/Documents/in/Metals?f_ri=192294"},{"id":396851,"name":"Flame Retardant","url":"https://www.academia.edu/Documents/in/Flame_Retardant?f_ri=192294"},{"id":529308,"name":"Leachate","url":"https://www.academia.edu/Documents/in/Leachate?f_ri=192294"},{"id":622589,"name":"Risk Assessment","url":"https://www.academia.edu/Documents/in/Risk_Assessment-2?f_ri=192294"},{"id":1134705,"name":"Landfill Leachate","url":"https://www.academia.edu/Documents/in/Landfill_Leachate?f_ri=192294"},{"id":1256744,"name":"Organic Compound","url":"https://www.academia.edu/Documents/in/Organic_Compound?f_ri=192294"},{"id":1297608,"name":"Organic Chemicals","url":"https://www.academia.edu/Documents/in/Organic_Chemicals?f_ri=192294"},{"id":1365470,"name":"Soil Pollutants","url":"https://www.academia.edu/Documents/in/Soil_Pollutants?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_65225774" data-work_id="65225774" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/65225774/Hydrodynamics_and_Cohesive_Sediment_Transport_In_the_IJzer_Estuary_Belgium_Case_Study">Hydrodynamics and Cohesive Sediment Transport In the IJzer Estuary, Belgium: Case Study</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The quantification and monitoring of sediment dynamics in estuaries has received plenty of attention in recent years due to both economic and environmental interests. Numerical models have been widely applied for predicting the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_65225774" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The quantification and monitoring of sediment dynamics in estuaries has received plenty of attention in recent years due to both economic and environmental interests. Numerical models have been widely applied for predicting the morphodynamic evolution of these areas. However, the degree of uncertainty of these models is often very high due to the lack of measurements necessary for a complete model calibration and validation. In this paper, different methods have been integrated to overcome these limitations. The hydrodynamics and suspended sediment transport in the IJzer estuary were estimated by means of field data and with the use of a two-dimensional hydrodynamic model coupled to a morphodynamic model. Tidal pumping was recognized as the main driving mechanism of sediments inside the estuary. Erosion-deposition areas calculated with the numerical model were compared to the locations and volumes of dredged material. Model results and measurements were generally in good agreement. Additional support for the morphodynamic model results came from airborne hyperspectral images acquired in 2001 and 2005.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/65225774" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="477639e97e87f14676100c7af89f85f6" rel="nofollow" data-download="{"attachment_id":76919690,"asset_id":65225774,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/76919690/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="158288058" href="https://independent.academia.edu/EngMohamedIbrahim3">Eng Mohamed Ibrahim</a><script data-card-contents-for-user="158288058" type="text/json">{"id":158288058,"first_name":"Eng Mohamed","last_name":"Ibrahim","domain_name":"independent","page_name":"EngMohamedIbrahim3","display_name":"Eng Mohamed Ibrahim","profile_url":"https://independent.academia.edu/EngMohamedIbrahim3?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_65225774 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="65225774"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 65225774, container: ".js-paper-rank-work_65225774", }); 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$(".js-view-count[data-work-id=65225774]").text(description); $(".js-view-count-work_65225774").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_65225774").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="65225774"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">18</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="73" rel="nofollow" href="https://www.academia.edu/Documents/in/Civil_Engineering">Civil Engineering</a>, <script data-card-contents-for-ri="73" type="text/json">{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="402" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Science">Environmental Science</a>, <script data-card-contents-for-ri="402" type="text/json">{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1252" rel="nofollow" href="https://www.academia.edu/Documents/in/Remote_Sensing">Remote Sensing</a><script data-card-contents-for-ri="1252" type="text/json">{"id":1252,"name":"Remote Sensing","url":"https://www.academia.edu/Documents/in/Remote_Sensing?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=65225774]'), work: {"id":65225774,"title":"Hydrodynamics and Cohesive Sediment Transport In the IJzer Estuary, Belgium: Case Study","created_at":"2021-12-20T16:34:48.719-08:00","url":"https://www.academia.edu/65225774/Hydrodynamics_and_Cohesive_Sediment_Transport_In_the_IJzer_Estuary_Belgium_Case_Study?f_ri=192294","dom_id":"work_65225774","summary":"The quantification and monitoring of sediment dynamics in estuaries has received plenty of attention in recent years due to both economic and environmental interests. Numerical models have been widely applied for predicting the morphodynamic evolution of these areas. However, the degree of uncertainty of these models is often very high due to the lack of measurements necessary for a complete model calibration and validation. In this paper, different methods have been integrated to overcome these limitations. The hydrodynamics and suspended sediment transport in the IJzer estuary were estimated by means of field data and with the use of a two-dimensional hydrodynamic model coupled to a morphodynamic model. Tidal pumping was recognized as the main driving mechanism of sediments inside the estuary. Erosion-deposition areas calculated with the numerical model were compared to the locations and volumes of dredged material. Model results and measurements were generally in good agreement. Additional support for the morphodynamic model results came from airborne hyperspectral images acquired in 2001 and 2005.","downloadable_attachments":[{"id":76919690,"asset_id":65225774,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":158288058,"first_name":"Eng Mohamed","last_name":"Ibrahim","domain_name":"independent","page_name":"EngMohamedIbrahim3","display_name":"Eng Mohamed Ibrahim","profile_url":"https://independent.academia.edu/EngMohamedIbrahim3?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true},{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=192294","nofollow":true},{"id":1252,"name":"Remote Sensing","url":"https://www.academia.edu/Documents/in/Remote_Sensing?f_ri=192294","nofollow":true},{"id":2549,"name":"Hydrology","url":"https://www.academia.edu/Documents/in/Hydrology?f_ri=192294"},{"id":60658,"name":"Numerical Simulation","url":"https://www.academia.edu/Documents/in/Numerical_Simulation?f_ri=192294"},{"id":89990,"name":"Estuaries","url":"https://www.academia.edu/Documents/in/Estuaries?f_ri=192294"},{"id":96047,"name":"Case Study","url":"https://www.academia.edu/Documents/in/Case_Study?f_ri=192294"},{"id":96446,"name":"Measurement","url":"https://www.academia.edu/Documents/in/Measurement?f_ri=192294"},{"id":113501,"name":"Sediment transport","url":"https://www.academia.edu/Documents/in/Sediment_transport?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":179332,"name":"Hydrodynamics","url":"https://www.academia.edu/Documents/in/Hydrodynamics?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":471104,"name":"Maritime Engineering","url":"https://www.academia.edu/Documents/in/Maritime_Engineering?f_ri=192294"},{"id":477461,"name":"Coastal Zone","url":"https://www.academia.edu/Documents/in/Coastal_Zone?f_ri=192294"},{"id":620328,"name":"Sediment Transport","url":"https://www.academia.edu/Documents/in/Sediment_Transport-5?f_ri=192294"},{"id":1292685,"name":"Site Analysis","url":"https://www.academia.edu/Documents/in/Site_Analysis?f_ri=192294"},{"id":2108071,"name":"Data Gathering","url":"https://www.academia.edu/Documents/in/Data_Gathering?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_32060457" data-work_id="32060457" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/32060457/Significance_of_bacterivory_and_viral_lysis_in_bottom_waters_of_Franklin_Bay_Canadian_Arctic_during_winter">Significance of bacterivory and viral lysis in bottom waters of Franklin Bay, Canadian Arctic, during winter</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Little information is currently available about water column microbial processes or mortality during Arctic winter. To address this paucity, we used epifluorescence microscopy and dilution experiments to determine the abundance of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_32060457" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Little information is currently available about water column microbial processes or mortality during Arctic winter. To address this paucity, we used epifluorescence microscopy and dilution experiments to determine the abundance of flagellates, bacteria and virus-like particles (VLP) and the rates of bacterial growth, bacterivory and virus-induced mortality in subzero-temperature bottom waters (≤ 230 m) of Franklin Bay during February and March 2004, when ice-covered surface waters were highly oligotrophic (maximum chlorophyll a value of 0.09 µg l -1 ). We focused on bottom waters due to the possible importance of sediment resuspension as a source of organic matter. While flagellates were present at low densities (1.5 to 3.1 × 10 2 ml -1 ), bacterial concentrations resembled those from other seasons in the region and increased over the 5 wk sampling period, from 1.4 × 10 5 to 3.0 × 10 5 ml -1 . VLPs were typically an order of magnitude more abundant than bacteria (range of 1.4 to 4.5 × 10 6 VLP ml -1 ) and, like the fraction of particle-associated bacteria (but not total bacteria), correlated with particulate organic carbon concentration (r s = 0.82, p < 0.04, n = 7). Grazing rates, whether measured in dilution experiments or calculated from flagellate abundance, were low or undetectable (maximum of -0.004 h -1 ). Of 3 parallel experiments, 2 yielded substantial virus-induced mortality (-0.006 to -0.015 h -1 ), comparable to or exceeding the intrinsic bacterial growth rate (0.010 h -1 in both experiments) and suggesting viruses were the more important agents of bacterial mortality under these conditions. Using a viral reduction approach, VLP production measured in the water column or ice-moored sediment traps was commonly low (0.3 to 7.7 × 10 4 VLP ml -1 h -1 ) or undetectable, highly variable among replicates and, when measurable, implied viral turnover times between 0.9 and 12 d. In general, our results show that, despite the oligotrophy of Arctic winter, bottom water bacterial communities can remain active and subject to viral predation.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/32060457" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="1465f1f13e8bb87af5b1d8afc1ffe8e9" rel="nofollow" data-download="{"attachment_id":52320064,"asset_id":32060457,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/52320064/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33041999" href="https://washington.academia.edu/JodyDeming">Jody Deming</a><script data-card-contents-for-user="33041999" type="text/json">{"id":33041999,"first_name":"Jody","last_name":"Deming","domain_name":"washington","page_name":"JodyDeming","display_name":"Jody Deming","profile_url":"https://washington.academia.edu/JodyDeming?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_32060457 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="32060457"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 32060457, container: ".js-paper-rank-work_32060457", }); 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To address this paucity, we used epifluorescence microscopy and dilution experiments to determine the abundance of flagellates, bacteria and virus-like particles (VLP) and the rates of bacterial growth, bacterivory and virus-induced mortality in subzero-temperature bottom waters (≤ 230 m) of Franklin Bay during February and March 2004, when ice-covered surface waters were highly oligotrophic (maximum chlorophyll a value of 0.09 µg l -1 ). We focused on bottom waters due to the possible importance of sediment resuspension as a source of organic matter. While flagellates were present at low densities (1.5 to 3.1 × 10 2 ml -1 ), bacterial concentrations resembled those from other seasons in the region and increased over the 5 wk sampling period, from 1.4 × 10 5 to 3.0 × 10 5 ml -1 . VLPs were typically an order of magnitude more abundant than bacteria (range of 1.4 to 4.5 × 10 6 VLP ml -1 ) and, like the fraction of particle-associated bacteria (but not total bacteria), correlated with particulate organic carbon concentration (r s = 0.82, p \u003c 0.04, n = 7). Grazing rates, whether measured in dilution experiments or calculated from flagellate abundance, were low or undetectable (maximum of -0.004 h -1 ). Of 3 parallel experiments, 2 yielded substantial virus-induced mortality (-0.006 to -0.015 h -1 ), comparable to or exceeding the intrinsic bacterial growth rate (0.010 h -1 in both experiments) and suggesting viruses were the more important agents of bacterial mortality under these conditions. Using a viral reduction approach, VLP production measured in the water column or ice-moored sediment traps was commonly low (0.3 to 7.7 × 10 4 VLP ml -1 h -1 ) or undetectable, highly variable among replicates and, when measurable, implied viral turnover times between 0.9 and 12 d. In general, our results show that, despite the oligotrophy of Arctic winter, bottom water bacterial communities can remain active and subject to viral predation.","downloadable_attachments":[{"id":52320064,"asset_id":32060457,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33041999,"first_name":"Jody","last_name":"Deming","domain_name":"washington","page_name":"JodyDeming","display_name":"Jody Deming","profile_url":"https://washington.academia.edu/JodyDeming?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":159,"name":"Microbiology","url":"https://www.academia.edu/Documents/in/Microbiology?f_ri=192294","nofollow":true},{"id":3091,"name":"Microscopy","url":"https://www.academia.edu/Documents/in/Microscopy?f_ri=192294","nofollow":true},{"id":7094,"name":"Aquatic Microbial Ecology","url":"https://www.academia.edu/Documents/in/Aquatic_Microbial_Ecology?f_ri=192294","nofollow":true},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=192294","nofollow":true},{"id":82145,"name":"Virus","url":"https://www.academia.edu/Documents/in/Virus?f_ri=192294"},{"id":109951,"name":"Turnover","url":"https://www.academia.edu/Documents/in/Turnover?f_ri=192294"},{"id":113903,"name":"Bacteria","url":"https://www.academia.edu/Documents/in/Bacteria?f_ri=192294"},{"id":120698,"name":"Particles","url":"https://www.academia.edu/Documents/in/Particles?f_ri=192294"},{"id":129121,"name":"Yield","url":"https://www.academia.edu/Documents/in/Yield?f_ri=192294"},{"id":133177,"name":"Temperature","url":"https://www.academia.edu/Documents/in/Temperature?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":1256745,"name":"Lysis","url":"https://www.academia.edu/Documents/in/Lysis?f_ri=192294"},{"id":1627116,"name":"Microbial community","url":"https://www.academia.edu/Documents/in/Microbial_community?f_ri=192294"},{"id":2196834,"name":"Canadian Arctic","url":"https://www.academia.edu/Documents/in/Canadian_Arctic?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4502861" data-work_id="4502861" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4502861/The_effects_of_motorway_runoff_on_freshwater_ecosystems_2_Identifying_major_toxicants">The effects of motorway runoff on freshwater ecosystems. 2: Identifying major toxicants</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4502861" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case situations. Because discharges contain a wide variety of contaminants, both the identification of toxicants and the establishment of causal relationships between observed changes in waterhediment quality and biology are often difficult. In this particular case, the problem was addressed by conducting a series of toxicity tests using the benthic amphipod Gummnruspulex. The abundance of this species was greatly reduced downstream of the point where motorway runoff entered the stream. Stream water contaminated with motorway runoff was not toxic to G. pulex. However, exposure to contaminated sediments resulted in a slight reduction in survival over 14 d, and sediment manipulation experiments identified hydrocarbons, copper, and zinc as potential toxicants. Spiking experiments confirmed the importance of hydrocarbons, and fractionation studies indicated that most of the observed toxicity was due to the fraction containing polycyclic aromatic hydrocarbons. Animals exposed to contaminated sediments and water spiked with sediment extract accumulated aromatic hydrocarbons in direct proportion to exposure concentrations.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4502861" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="bcad7179afc41a6dd8cfd2828deb786d" rel="nofollow" data-download="{"attachment_id":49819725,"asset_id":4502861,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49819725/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3541905" href="https://york.academia.edu/alistairboxall">alistair boxall</a><script data-card-contents-for-user="3541905" type="text/json">{"id":3541905,"first_name":"alistair","last_name":"boxall","domain_name":"york","page_name":"alistairboxall","display_name":"alistair boxall","profile_url":"https://york.academia.edu/alistairboxall?f_ri=192294","photo":"https://0.academia-photos.com/3541905/20629792/20230573/s65_alistair.boxall.jpg"}</script></span></span></li><li class="js-paper-rank-work_4502861 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4502861"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4502861, container: ".js-paper-rank-work_4502861", }); 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$(".js-view-count[data-work-id=4502861]").text(description); $(".js-view-count-work_4502861").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4502861").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4502861"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">39</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="402" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Science">Environmental Science</a>, <script data-card-contents-for-ri="402" type="text/json">{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4523" rel="nofollow" href="https://www.academia.edu/Documents/in/Water_quality">Water quality</a>, <script data-card-contents-for-ri="4523" type="text/json">{"id":4523,"name":"Water quality","url":"https://www.academia.edu/Documents/in/Water_quality?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="7049" rel="nofollow" href="https://www.academia.edu/Documents/in/Crustacea">Crustacea</a>, <script data-card-contents-for-ri="7049" type="text/json">{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21724" rel="nofollow" href="https://www.academia.edu/Documents/in/Water_Pollution">Water Pollution</a><script data-card-contents-for-ri="21724" type="text/json">{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4502861]'), work: {"id":4502861,"title":"The effects of motorway runoff on freshwater ecosystems. 2: Identifying major toxicants","created_at":"2013-09-16T15:10:23.005-07:00","url":"https://www.academia.edu/4502861/The_effects_of_motorway_runoff_on_freshwater_ecosystems_2_Identifying_major_toxicants?f_ri=192294","dom_id":"work_4502861","summary":"Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case situations. Because discharges contain a wide variety of contaminants, both the identification of toxicants and the establishment of causal relationships between observed changes in waterhediment quality and biology are often difficult. In this particular case, the problem was addressed by conducting a series of toxicity tests using the benthic amphipod Gummnruspulex. The abundance of this species was greatly reduced downstream of the point where motorway runoff entered the stream. Stream water contaminated with motorway runoff was not toxic to G. pulex. However, exposure to contaminated sediments resulted in a slight reduction in survival over 14 d, and sediment manipulation experiments identified hydrocarbons, copper, and zinc as potential toxicants. Spiking experiments confirmed the importance of hydrocarbons, and fractionation studies indicated that most of the observed toxicity was due to the fraction containing polycyclic aromatic hydrocarbons. Animals exposed to contaminated sediments and water spiked with sediment extract accumulated aromatic hydrocarbons in direct proportion to exposure concentrations.","downloadable_attachments":[{"id":49819725,"asset_id":4502861,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3541905,"first_name":"alistair","last_name":"boxall","domain_name":"york","page_name":"alistairboxall","display_name":"alistair boxall","profile_url":"https://york.academia.edu/alistairboxall?f_ri=192294","photo":"https://0.academia-photos.com/3541905/20629792/20230573/s65_alistair.boxall.jpg"}],"research_interests":[{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true},{"id":4523,"name":"Water quality","url":"https://www.academia.edu/Documents/in/Water_quality?f_ri=192294","nofollow":true},{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true},{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294","nofollow":true},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294"},{"id":40867,"name":"United Kingdom","url":"https://www.academia.edu/Documents/in/United_Kingdom?f_ri=192294"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":49646,"name":"Protein Structure and Function","url":"https://www.academia.edu/Documents/in/Protein_Structure_and_Function?f_ri=192294"},{"id":53796,"name":"Aquatic Ecosystem","url":"https://www.academia.edu/Documents/in/Aquatic_Ecosystem?f_ri=192294"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294"},{"id":80692,"name":"Copper","url":"https://www.academia.edu/Documents/in/Copper?f_ri=192294"},{"id":111050,"name":"Heavy Metal","url":"https://www.academia.edu/Documents/in/Heavy_Metal?f_ri=192294"},{"id":151778,"name":"Chromium","url":"https://www.academia.edu/Documents/in/Chromium?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":158165,"name":"Zinc","url":"https://www.academia.edu/Documents/in/Zinc?f_ri=192294"},{"id":164753,"name":"Aquatic Ecosystems","url":"https://www.academia.edu/Documents/in/Aquatic_Ecosystems?f_ri=192294"},{"id":184001,"name":"Polycyclic Aromatic 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Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Toxicology_and_Chemistry?f_ri=192294"},{"id":1133132,"name":"Environmental","url":"https://www.academia.edu/Documents/in/Environmental?f_ri=192294"},{"id":1224526,"name":"Aromatic Hydrocarbon","url":"https://www.academia.edu/Documents/in/Aromatic_Hydrocarbon?f_ri=192294"},{"id":1253050,"name":"Pigeon","url":"https://www.academia.edu/Documents/in/Pigeon?f_ri=192294"},{"id":1630999,"name":"Toxicity Testing","url":"https://www.academia.edu/Documents/in/Toxicity_Testing?f_ri=192294"},{"id":2516014,"name":"temporal variation","url":"https://www.academia.edu/Documents/in/temporal_variation?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_7572268" data-work_id="7572268" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/7572268/Ice_free_cryopreservation_of_mouse_embryos_at_196_C_by_vitrification">Ice-free cryopreservation of mouse embryos at −196 °C by vitrification</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Multi-proxy approach was used to reconstruct the environmental conditions of remote lakes in the High Tatra Mountains (Slovakia) over the past few centuries (approximately 500-1000 years). Short sediment cores (*30 cm) taken from three... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_7572268" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Multi-proxy approach was used to reconstruct the environmental conditions of remote lakes in the High Tatra Mountains (Slovakia) over the past few centuries (approximately 500-1000 years). Short sediment cores (*30 cm) taken from three morphologically similar glacial lakes distributed along altitudinal gradient (subalpine to alpine conditions) were analysed for organic matter content (LOI), diatoms and chironomids. Both descriptive and correlative approaches were used for analysing stratigraphical data. Predictive canonical correspondence analysis and co-correspondence analysis were applied to directly relate physical and biological proxies to each other. The relationship between LOI and biotic proxies was inconsistent across groups and lakes. Concordant patterns in diatom and chironomid composition were found in two non-acidified lakes. Common trends in those assemblages indicated major past environmental events such as the Little Ice Age, air pollution and lake acidification. In contrast, no relationship between the composition of diatom and chironomid assemblages was found in the formerly acidified lake, suggesting different responses of assemblages to acidification. While chironomids showed shifts that are attributable to recovery, diatoms assemblage remained relatively stable throughout the uppermost layers of the sediment record. On the other hand, climatic-driven changes in assemblages detected in the deeper layers were more pronounced in diatoms than in chironomids.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/7572268" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="55f0956485e522e3cd301fa3be8572ad" rel="nofollow" data-download="{"attachment_id":48418055,"asset_id":7572268,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/48418055/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="4088138" href="https://independent.academia.edu/GregoryFahy">Gregory Fahy</a><script data-card-contents-for-user="4088138" type="text/json">{"id":4088138,"first_name":"Gregory","last_name":"Fahy","domain_name":"independent","page_name":"GregoryFahy","display_name":"Gregory Fahy","profile_url":"https://independent.academia.edu/GregoryFahy?f_ri=192294","photo":"https://0.academia-photos.com/4088138/1573856/1905987/s65_gregory.fahy.jpg"}</script></span></span></li><li class="js-paper-rank-work_7572268 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="7572268"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 7572268, container: ".js-paper-rank-work_7572268", }); 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Motility","url":"https://www.academia.edu/Documents/in/Cell_Motility?f_ri=192294"},{"id":2173587,"name":"Collective Resistance","url":"https://www.academia.edu/Documents/in/Collective_Resistance?f_ri=192294"},{"id":2374838,"name":"Hematopoietic Stem Cell Transplantation","url":"https://www.academia.edu/Documents/in/Hematopoietic_Stem_Cell_Transplantation?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_27796040" data-work_id="27796040" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/27796040/Sediment_Production_From_Forest_Roads_in_Western_Montana1">Sediment Production From Forest Roads in Western Montana1</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Unpaved roads are a primary sediment source in forested watersheds. Validation of erosion models and improvements to road management require information on road erosion rates and the factors controlling erosion. This study measured... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_27796040" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Unpaved roads are a primary sediment source in forested watersheds. Validation of erosion models and improvements to road management require information on road erosion rates and the factors controlling erosion. This study measured sediment yields from twenty $0.05 ha unsurfaced (native) road plots in Belt Supergroup and glacial till parent materials of western Montana, and investigated the factors controlling erosion. Annual sediment yields for individual plots ranged from 0 to 96.9 Mg ⁄ ha ⁄ yr over 3 years (2002)(2003)(2004). Annual mean sediment yield ranged from 2.1 Mg ⁄ ha in 2003 to 9.9 Mg ⁄ ha in 2004 with an overall mean of 5.4 Mg ⁄ ha ⁄ yr. The mean of log-transformed sediment yields for sites in glacial till parent materials was higher than Belt Supergroup parent materials (p = 0.063). A regression model with road slope, time since last grading, roadbed gravel content, and precipitation as predictive variables explained 68% of the variability in sediment yield (F = 28.2; p < 0.0001). Road erosion in western Montana is limited by low erodibility of the dominant parent materials and low rainfall. Management procedures such as reducing the frequency of grading can significantly reduce sediment yields from forest roads.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/27796040" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4f9c0e0984a8bb6519f92e2f24b04950" rel="nofollow" data-download="{"attachment_id":48076207,"asset_id":27796040,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/48076207/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="52096292" href="https://independent.academia.edu/BrianSugden">Brian Sugden</a><script data-card-contents-for-user="52096292" type="text/json">{"id":52096292,"first_name":"Brian","last_name":"Sugden","domain_name":"independent","page_name":"BrianSugden","display_name":"Brian Sugden","profile_url":"https://independent.academia.edu/BrianSugden?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_27796040 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="27796040"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 27796040, container: ".js-paper-rank-work_27796040", }); 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Validation of erosion models and improvements to road management require information on road erosion rates and the factors controlling erosion. This study measured sediment yields from twenty $0.05 ha unsurfaced (native) road plots in Belt Supergroup and glacial till parent materials of western Montana, and investigated the factors controlling erosion. Annual sediment yields for individual plots ranged from 0 to 96.9 Mg ⁄ ha ⁄ yr over 3 years (2002)(2003)(2004). Annual mean sediment yield ranged from 2.1 Mg ⁄ ha in 2003 to 9.9 Mg ⁄ ha in 2004 with an overall mean of 5.4 Mg ⁄ ha ⁄ yr. The mean of log-transformed sediment yields for sites in glacial till parent materials was higher than Belt Supergroup parent materials (p = 0.063). A regression model with road slope, time since last grading, roadbed gravel content, and precipitation as predictive variables explained 68% of the variability in sediment yield (F = 28.2; p \u003c 0.0001). Road erosion in western Montana is limited by low erodibility of the dominant parent materials and low rainfall. Management procedures such as reducing the frequency of grading can significantly reduce sediment yields from forest roads.","downloadable_attachments":[{"id":48076207,"asset_id":27796040,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":52096292,"first_name":"Brian","last_name":"Sugden","domain_name":"independent","page_name":"BrianSugden","display_name":"Brian Sugden","profile_url":"https://independent.academia.edu/BrianSugden?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true},{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true},{"id":54191,"name":"Forest road","url":"https://www.academia.edu/Documents/in/Forest_road?f_ri=192294","nofollow":true},{"id":65140,"name":"Models","url":"https://www.academia.edu/Documents/in/Models?f_ri=192294","nofollow":true},{"id":78570,"name":"Nonpoint Source Pollution","url":"https://www.academia.edu/Documents/in/Nonpoint_Source_Pollution?f_ri=192294"},{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294"},{"id":107672,"name":"Regression","url":"https://www.academia.edu/Documents/in/Regression?f_ri=192294"},{"id":117033,"name":"Forests","url":"https://www.academia.edu/Documents/in/Forests?f_ri=192294"},{"id":144046,"name":"Frequency","url":"https://www.academia.edu/Documents/in/Frequency?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":201862,"name":"Rainfall","url":"https://www.academia.edu/Documents/in/Rainfall?f_ri=192294"},{"id":530872,"name":"Runoff","url":"https://www.academia.edu/Documents/in/Runoff?f_ri=192294"},{"id":545191,"name":"Route","url":"https://www.academia.edu/Documents/in/Route?f_ri=192294"},{"id":717073,"name":"Till","url":"https://www.academia.edu/Documents/in/Till?f_ri=192294"},{"id":2464637,"name":"Drainage Basins","url":"https://www.academia.edu/Documents/in/Drainage_Basins?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_12868203" data-work_id="12868203" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/12868203/Geomorphic_controls_on_mercury_accumulation_in_soils_from_a_historically_mined_watershed_Central_California_Coast_Range_USA">Geomorphic controls on mercury accumulation in soils from a historically mined watershed, Central California Coast Range, USA</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Historic Hg mining in the Cache Creek watershed in the Central California Coast Range has contributed to the downstream transport of Hg to the San Francisco Bay-Delta. Different aspects of Hg mobilization in soils, including pedogenesis,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_12868203" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Historic Hg mining in the Cache Creek watershed in the Central California Coast Range has contributed to the downstream transport of Hg to the San Francisco Bay-Delta. Different aspects of Hg mobilization in soils, including pedogenesis, fluvial redistribution of sediment, volatilization and eolian transport were considered. The greatest soil concentrations (>30 mg Hg kg À1 ) in Cache Creek are associated with mineralized serpentinite, the host rock for Hg deposits. Upland soils with non-mineralized serpentine and sedimentary parent material also had elevated concentrations (0.9-3.7 mg Hg kg À1 ) relative to the average concentration in the region and throughout the conterminous United States (0.06 mg kg À1 ). Erosion of soil and destabilized rock and mobilization of tailings and calcines into surrounding streams have contributed to Hg-rich alluvial soil forming in wetlands and floodplains. The concentration of Hg in floodplain sediment shows sediment dispersion from low-order catchments (5.6-9.6 mg Hg kg À1 in Sulphur Creek; 0.5-61 mg Hg kg À1 in Davis Creek) to Cache Creek (0.1-0.4 mg Hg kg À1 ). These sediments, deposited onto the floodplain during high-flow storm events, yield elevated Hg concentrations (0.2-55 mg Hg kg À1 ) in alluvial soils in upland watersheds. Alluvial soils within the Cache Creek watershed accumulate Hg from upstream mining areas, with concentrations between 0.06 and 0.22 mg Hg kg À1 measured in soils $90 km downstream from Hg mining areas. Alluvial soils have accumulated Hg released through historic mining activities, remobilizing this Hg to streams as the soils erode.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/12868203" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="a0f3838c2813c6e2791459905ef564a5" rel="nofollow" data-download="{"attachment_id":45877931,"asset_id":12868203,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45877931/download_file?st=MTc0MDUzMzQ2Miw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31991985" href="https://independent.academia.edu/MartinGoldhaber">Martin Goldhaber</a><script data-card-contents-for-user="31991985" type="text/json">{"id":31991985,"first_name":"Martin","last_name":"Goldhaber","domain_name":"independent","page_name":"MartinGoldhaber","display_name":"Martin Goldhaber","profile_url":"https://independent.academia.edu/MartinGoldhaber?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_12868203 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="12868203"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 12868203, container: ".js-paper-rank-work_12868203", }); 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$(".js-view-count[data-work-id=12868203]").text(description); $(".js-view-count-work_12868203").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_12868203").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="12868203"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">16</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="407" rel="nofollow" href="https://www.academia.edu/Documents/in/Geochemistry">Geochemistry</a>, <script data-card-contents-for-ri="407" type="text/json">{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="408" rel="nofollow" href="https://www.academia.edu/Documents/in/Geomorphology">Geomorphology</a>, <script data-card-contents-for-ri="408" type="text/json">{"id":408,"name":"Geomorphology","url":"https://www.academia.edu/Documents/in/Geomorphology?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2461" rel="nofollow" href="https://www.academia.edu/Documents/in/Wetlands">Wetlands</a>, <script data-card-contents-for-ri="2461" type="text/json">{"id":2461,"name":"Wetlands","url":"https://www.academia.edu/Documents/in/Wetlands?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="18496" rel="nofollow" href="https://www.academia.edu/Documents/in/Mining">Mining</a><script data-card-contents-for-ri="18496" type="text/json">{"id":18496,"name":"Mining","url":"https://www.academia.edu/Documents/in/Mining?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=12868203]'), work: {"id":12868203,"title":"Geomorphic controls on mercury accumulation in soils from a historically mined watershed, Central California Coast Range, USA","created_at":"2015-06-08T09:18:35.330-07:00","url":"https://www.academia.edu/12868203/Geomorphic_controls_on_mercury_accumulation_in_soils_from_a_historically_mined_watershed_Central_California_Coast_Range_USA?f_ri=192294","dom_id":"work_12868203","summary":"Historic Hg mining in the Cache Creek watershed in the Central California Coast Range has contributed to the downstream transport of Hg to the San Francisco Bay-Delta. Different aspects of Hg mobilization in soils, including pedogenesis, fluvial redistribution of sediment, volatilization and eolian transport were considered. The greatest soil concentrations (\u003e30 mg Hg kg À1 ) in Cache Creek are associated with mineralized serpentinite, the host rock for Hg deposits. Upland soils with non-mineralized serpentine and sedimentary parent material also had elevated concentrations (0.9-3.7 mg Hg kg À1 ) relative to the average concentration in the region and throughout the conterminous United States (0.06 mg kg À1 ). Erosion of soil and destabilized rock and mobilization of tailings and calcines into surrounding streams have contributed to Hg-rich alluvial soil forming in wetlands and floodplains. The concentration of Hg in floodplain sediment shows sediment dispersion from low-order catchments (5.6-9.6 mg Hg kg À1 in Sulphur Creek; 0.5-61 mg Hg kg À1 in Davis Creek) to Cache Creek (0.1-0.4 mg Hg kg À1 ). These sediments, deposited onto the floodplain during high-flow storm events, yield elevated Hg concentrations (0.2-55 mg Hg kg À1 ) in alluvial soils in upland watersheds. Alluvial soils within the Cache Creek watershed accumulate Hg from upstream mining areas, with concentrations between 0.06 and 0.22 mg Hg kg À1 measured in soils $90 km downstream from Hg mining areas. Alluvial soils have accumulated Hg released through historic mining activities, remobilizing this Hg to streams as the soils erode.","downloadable_attachments":[{"id":45877931,"asset_id":12868203,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31991985,"first_name":"Martin","last_name":"Goldhaber","domain_name":"independent","page_name":"MartinGoldhaber","display_name":"Martin Goldhaber","profile_url":"https://independent.academia.edu/MartinGoldhaber?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry?f_ri=192294","nofollow":true},{"id":408,"name":"Geomorphology","url":"https://www.academia.edu/Documents/in/Geomorphology?f_ri=192294","nofollow":true},{"id":2461,"name":"Wetlands","url":"https://www.academia.edu/Documents/in/Wetlands?f_ri=192294","nofollow":true},{"id":18496,"name":"Mining","url":"https://www.academia.edu/Documents/in/Mining?f_ri=192294","nofollow":true},{"id":32712,"name":"Applied Geochemistry","url":"https://www.academia.edu/Documents/in/Applied_Geochemistry?f_ri=192294"},{"id":47477,"name":"Soil Pollution","url":"https://www.academia.edu/Documents/in/Soil_Pollution?f_ri=192294"},{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294"},{"id":90017,"name":"Mercury","url":"https://www.academia.edu/Documents/in/Mercury?f_ri=192294"},{"id":98134,"name":"United States","url":"https://www.academia.edu/Documents/in/United_States?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":214841,"name":"Floodplains","url":"https://www.academia.edu/Documents/in/Floodplains?f_ri=192294"},{"id":482419,"name":"San Francisco Bay","url":"https://www.academia.edu/Documents/in/San_Francisco_Bay?f_ri=192294"},{"id":585436,"name":"Mine Tailings","url":"https://www.academia.edu/Documents/in/Mine_Tailings?f_ri=192294"},{"id":727816,"name":"Soil Types","url":"https://www.academia.edu/Documents/in/Soil_Types?f_ri=192294"},{"id":1854642,"name":"Volatilization","url":"https://www.academia.edu/Documents/in/Volatilization?f_ri=192294"},{"id":1957240,"name":"ENVIRONMENTAL SCIENCE AND MANAGEMENT","url":"https://www.academia.edu/Documents/in/ENVIRONMENTAL_SCIENCE_AND_MANAGEMENT?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_75002922" data-work_id="75002922" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/75002922/Rapid_Prototyping_Expert_Systems_for_Minimising_River_Pollution_During_Highway_Construction_Activities">Rapid Prototyping Expert Systems for Minimising River Pollution During Highway Construction Activities</a></div></div><div class="u-pb4x 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class="js-paper-rank-work_75002922 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="75002922"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 75002922, container: ".js-paper-rank-work_75002922", }); });</script></li><li class="js-percentile-work_75002922 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 75002922; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_75002922"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); 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u-positionRelative">14</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="48" rel="nofollow" href="https://www.academia.edu/Documents/in/Engineering">Engineering</a>, <script data-card-contents-for-ri="48" type="text/json">{"id":48,"name":"Engineering","url":"https://www.academia.edu/Documents/in/Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="470" rel="nofollow" href="https://www.academia.edu/Documents/in/Expert_Systems">Expert Systems</a>, <script data-card-contents-for-ri="470" type="text/json">{"id":470,"name":"Expert Systems","url":"https://www.academia.edu/Documents/in/Expert_Systems?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="3105" rel="nofollow" href="https://www.academia.edu/Documents/in/Construction_Management">Construction Management</a>, <script data-card-contents-for-ri="3105" type="text/json">{"id":3105,"name":"Construction Management","url":"https://www.academia.edu/Documents/in/Construction_Management?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="6842" rel="nofollow" href="https://www.academia.edu/Documents/in/Construction_Project_Management">Construction Project Management</a><script data-card-contents-for-ri="6842" type="text/json">{"id":6842,"name":"Construction Project Management","url":"https://www.academia.edu/Documents/in/Construction_Project_Management?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=75002922]'), work: {"id":75002922,"title":"Rapid Prototyping Expert Systems for Minimising River Pollution During Highway Construction Activities","created_at":"2022-03-30T12:52:05.801-07:00","url":"https://www.academia.edu/75002922/Rapid_Prototyping_Expert_Systems_for_Minimising_River_Pollution_During_Highway_Construction_Activities?f_ri=192294","dom_id":"work_75002922","summary":null,"downloadable_attachments":[{"id":82948689,"asset_id":75002922,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":110495883,"first_name":"Ibrahiem Abdul Razak","last_name":"Al-Ani","domain_name":"independent","page_name":"IbrahiemAbdulRazakAlAni","display_name":"Ibrahiem Abdul Razak Al-Ani","profile_url":"https://independent.academia.edu/IbrahiemAbdulRazakAlAni?f_ri=192294","photo":"https://0.academia-photos.com/110495883/30281878/28083352/s65_ibrahiem_abdul_razak.al-ani.jpg"}],"research_interests":[{"id":48,"name":"Engineering","url":"https://www.academia.edu/Documents/in/Engineering?f_ri=192294","nofollow":true},{"id":470,"name":"Expert Systems","url":"https://www.academia.edu/Documents/in/Expert_Systems?f_ri=192294","nofollow":true},{"id":3105,"name":"Construction Management","url":"https://www.academia.edu/Documents/in/Construction_Management?f_ri=192294","nofollow":true},{"id":6842,"name":"Construction Project Management","url":"https://www.academia.edu/Documents/in/Construction_Project_Management?f_ri=192294","nofollow":true},{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294"},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294"},{"id":34190,"name":"Rapid Prototyping","url":"https://www.academia.edu/Documents/in/Rapid_Prototyping?f_ri=192294"},{"id":121337,"name":"expert System","url":"https://www.academia.edu/Documents/in/expert_System?f_ri=192294"},{"id":159232,"name":"Applied Sciences","url":"https://www.academia.edu/Documents/in/Applied_Sciences?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":251651,"name":"Environmental Impact","url":"https://www.academia.edu/Documents/in/Environmental_Impact?f_ri=192294"},{"id":340088,"name":"Prototypes","url":"https://www.academia.edu/Documents/in/Prototypes?f_ri=192294"},{"id":886665,"name":"Suspended Solids","url":"https://www.academia.edu/Documents/in/Suspended_Solids?f_ri=192294"},{"id":1005996,"name":"Simulation Models","url":"https://www.academia.edu/Documents/in/Simulation_Models?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_36926261 coauthored" data-work_id="36926261" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/36926261/Comparison_of_the_Phytotoxkit_microbiotest_and_chemical_variables_for_toxicity_evaluation_of_sediments">Comparison of the Phytotoxkit microbiotest and chemical variables for toxicity evaluation of sediments</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The main objective of the research was to evaluate the suitability of the Phytotoxkit microbiotest as a tool for hazard assessment of sediments. The concentrations of oil derivatives, polycyclic aromatic hydrocarbons (PAHs), and heavy... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_36926261" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The main objective of the research was to evaluate the suitability of the Phytotoxkit microbiotest as a tool for hazard assessment of sediments. The concentrations of oil derivatives, polycyclic aromatic hydrocarbons (PAHs), and heavy metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) were determined in sediment samples collected from the urban canal in Opole (Poland), in order to obtain a general insight of the level of sediment contamination. Phytotoxicity of sediments was estimated on the basis of seed germination and root elongation measurements, combined into an overall germination index (GI). The results revealed spatial and vertical differentiation in sediment contamination. A good correlation was obtained between organic matter content and the concentrations of particular sediment pollutants. Values of correlation coefficients at P < 0.05 ranged from 0.3246 for oil derivatives to 0.8929 for PAHs. Phytotoxicity tests, carried out on the monocotyl Sorghum saccharatum and the dicotyls Sinapis alba and Lepidium sativum, showed different responses of the three plant species to sediment samples ranging from growth inhibition to growth stimulation. The GI values revealed the following increasing order of plant sensitivity to contaminated sediments: L. sativum < S. alba < S. saccharatum. The study demonstrated that the Phytotoxkit microbiotest was effective in identifying toxic samples. However, sediment organic matter content and grain-size distribution had a significant impact on both sediment contamination and higher plant responses to contaminated samples. The implication of these findings are discussed.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/36926261" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d4a4cfe780b5f852a1c0cef6ff37f57f" rel="nofollow" data-download="{"attachment_id":56876445,"asset_id":36926261,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/56876445/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="83630585" href="https://independent.academia.edu/CichonAleksandra">Aleksandra Cichoń</a><script data-card-contents-for-user="83630585" type="text/json">{"id":83630585,"first_name":"Aleksandra","last_name":"Cichoń","domain_name":"independent","page_name":"CichonAleksandra","display_name":"Aleksandra Cichoń","profile_url":"https://independent.academia.edu/CichonAleksandra?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-36926261">+1</span><div class="hidden js-additional-users-36926261"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/GrzegorzKusza">Grzegorz Kusza</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-36926261'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-36926261').html(); 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The concentrations of oil derivatives, polycyclic aromatic hydrocarbons (PAHs), and heavy metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) were determined in sediment samples collected from the urban canal in Opole (Poland), in order to obtain a general insight of the level of sediment contamination. Phytotoxicity of sediments was estimated on the basis of seed germination and root elongation measurements, combined into an overall germination index (GI). The results revealed spatial and vertical differentiation in sediment contamination. A good correlation was obtained between organic matter content and the concentrations of particular sediment pollutants. Values of correlation coefficients at P \u003c 0.05 ranged from 0.3246 for oil derivatives to 0.8929 for PAHs. Phytotoxicity tests, carried out on the monocotyl Sorghum saccharatum and the dicotyls Sinapis alba and Lepidium sativum, showed different responses of the three plant species to sediment samples ranging from growth inhibition to growth stimulation. The GI values revealed the following increasing order of plant sensitivity to contaminated sediments: L. sativum \u003c S. alba \u003c S. saccharatum. The study demonstrated that the Phytotoxkit microbiotest was effective in identifying toxic samples. However, sediment organic matter content and grain-size distribution had a significant impact on both sediment contamination and higher plant responses to contaminated samples. The implication of these findings are discussed.","downloadable_attachments":[{"id":56876445,"asset_id":36926261,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":83630585,"first_name":"Aleksandra","last_name":"Cichoń","domain_name":"independent","page_name":"CichonAleksandra","display_name":"Aleksandra Cichoń","profile_url":"https://independent.academia.edu/CichonAleksandra?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":83539560,"first_name":"Grzegorz","last_name":"Kusza","domain_name":"independent","page_name":"GrzegorzKusza","display_name":"Grzegorz Kusza","profile_url":"https://independent.academia.edu/GrzegorzKusza?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":2867,"name":"Environmental Toxicology","url":"https://www.academia.edu/Documents/in/Environmental_Toxicology?f_ri=192294","nofollow":true},{"id":4552,"name":"Ecotoxicology","url":"https://www.academia.edu/Documents/in/Ecotoxicology?f_ri=192294","nofollow":true},{"id":4553,"name":"Toxicology","url":"https://www.academia.edu/Documents/in/Toxicology?f_ri=192294","nofollow":true},{"id":8910,"name":"Evaluation","url":"https://www.academia.edu/Documents/in/Evaluation?f_ri=192294","nofollow":true},{"id":11801,"name":"Environmental Monitoring","url":"https://www.academia.edu/Documents/in/Environmental_Monitoring?f_ri=192294"},{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294"},{"id":27363,"name":"Poland","url":"https://www.academia.edu/Documents/in/Poland?f_ri=192294"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":57697,"name":"Heavy metals","url":"https://www.academia.edu/Documents/in/Heavy_metals?f_ri=192294"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294"},{"id":87394,"name":"Sorghum","url":"https://www.academia.edu/Documents/in/Sorghum?f_ri=192294"},{"id":106562,"name":"Plant","url":"https://www.academia.edu/Documents/in/Plant?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":264953,"name":"Microorganism","url":"https://www.academia.edu/Documents/in/Microorganism?f_ri=192294"},{"id":281150,"name":"Polycyclic aromatic hydrocarbons (PAHs)","url":"https://www.academia.edu/Documents/in/Polycyclic_aromatic_hydrocarbons_PAHs_?f_ri=192294"},{"id":315117,"name":"Germination","url":"https://www.academia.edu/Documents/in/Germination?f_ri=192294"},{"id":386438,"name":"Seeds","url":"https://www.academia.edu/Documents/in/Seeds?f_ri=192294"},{"id":390245,"name":"Particle Size","url":"https://www.academia.edu/Documents/in/Particle_Size?f_ri=192294"},{"id":429427,"name":"Gramineae","url":"https://www.academia.edu/Documents/in/Gramineae?f_ri=192294"},{"id":448571,"name":"Contaminants","url":"https://www.academia.edu/Documents/in/Contaminants?f_ri=192294"},{"id":666927,"name":"Toxicity Tests","url":"https://www.academia.edu/Documents/in/Toxicity_Tests?f_ri=192294"},{"id":736321,"name":"Environmental Pollutants","url":"https://www.academia.edu/Documents/in/Environmental_Pollutants?f_ri=192294"},{"id":962262,"name":"Sinapis Alba","url":"https://www.academia.edu/Documents/in/Sinapis_Alba?f_ri=192294"},{"id":1133132,"name":"Environmental","url":"https://www.academia.edu/Documents/in/Environmental?f_ri=192294"},{"id":1208706,"name":"Environment","url":"https://www.academia.edu/Documents/in/Environment?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1724993,"name":"Lepidium sativum","url":"https://www.academia.edu/Documents/in/Lepidium_sativum?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_34002937" data-work_id="34002937" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/34002937/Propagation_of_water_waves_over_permeable_rippled_beds">Propagation of water waves over permeable rippled beds</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Unsteady two-dimensional Navier-Stokes equations and Navier-Stokes type model equations for porous flow were solved numerically to simulate the propagation of water waves over a permeable rippled bed. A boundary-fitted coordinate system... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_34002937" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Unsteady two-dimensional Navier-Stokes equations and Navier-Stokes type model equations for porous flow were solved numerically to simulate the propagation of water waves over a permeable rippled bed. A boundary-fitted coordinate system was adopted to make the computational meshes consistent with the rippled bed. The accuracy of the numerical scheme was confirmed by comparing the numerical results concerning the spatial distribution of wave amplitudes over impermeable and permeable rippled beds with the analytical solutions. For periodic incident waves, the flow field over the wavy wall is discussed in terms of the steady Eulerian streaming velocity. The trajectories of the fluid particles that are initially located close to the ripples were also determined. One of the main results herein is that under the action of periodic water waves, fluid particles on an impermeable rippled bed initially moved back and forth around the ripple crest, with increasing vertical distance from the rippled wall. After one or two wave periods, they are then lifted towards the next ripple crest. All of the marked particles on a permeable rippled bed were shifted onshore with a much larger displacement than those on an impermeable bed. Finally, the flow fields and the particle motions close to impermeable and permeable beds induced by a solitary wave are elucidated.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/34002937" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d62ada26aa7f3a0c2e52029790dd2959" rel="nofollow" data-download="{"attachment_id":53950313,"asset_id":34002937,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/53950313/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="66647037" href="https://independent.academia.edu/HuangChingjer">Ching-jer Huang</a><script data-card-contents-for-user="66647037" type="text/json">{"id":66647037,"first_name":"Ching-jer","last_name":"Huang","domain_name":"independent","page_name":"HuangChingjer","display_name":"Ching-jer Huang","profile_url":"https://independent.academia.edu/HuangChingjer?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_34002937 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="34002937"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 34002937, container: ".js-paper-rank-work_34002937", }); 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$(".js-view-count[data-work-id=34002937]").text(description); $(".js-view-count-work_34002937").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_34002937").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="34002937"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">15</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="73" rel="nofollow" href="https://www.academia.edu/Documents/in/Civil_Engineering">Civil Engineering</a>, <script data-card-contents-for-ri="73" type="text/json">{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="81" rel="nofollow" href="https://www.academia.edu/Documents/in/Ocean_Engineering">Ocean Engineering</a>, <script data-card-contents-for-ri="81" type="text/json">{"id":81,"name":"Ocean Engineering","url":"https://www.academia.edu/Documents/in/Ocean_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="6177" rel="nofollow" href="https://www.academia.edu/Documents/in/Modeling">Modeling</a>, <script data-card-contents-for-ri="6177" type="text/json">{"id":6177,"name":"Modeling","url":"https://www.academia.edu/Documents/in/Modeling?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="59770" rel="nofollow" href="https://www.academia.edu/Documents/in/Trajectory">Trajectory</a><script data-card-contents-for-ri="59770" type="text/json">{"id":59770,"name":"Trajectory","url":"https://www.academia.edu/Documents/in/Trajectory?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=34002937]'), work: {"id":34002937,"title":"Propagation of water waves over permeable rippled beds","created_at":"2017-07-23T00:24:41.621-07:00","url":"https://www.academia.edu/34002937/Propagation_of_water_waves_over_permeable_rippled_beds?f_ri=192294","dom_id":"work_34002937","summary":"Unsteady two-dimensional Navier-Stokes equations and Navier-Stokes type model equations for porous flow were solved numerically to simulate the propagation of water waves over a permeable rippled bed. A boundary-fitted coordinate system was adopted to make the computational meshes consistent with the rippled bed. The accuracy of the numerical scheme was confirmed by comparing the numerical results concerning the spatial distribution of wave amplitudes over impermeable and permeable rippled beds with the analytical solutions. For periodic incident waves, the flow field over the wavy wall is discussed in terms of the steady Eulerian streaming velocity. The trajectories of the fluid particles that are initially located close to the ripples were also determined. One of the main results herein is that under the action of periodic water waves, fluid particles on an impermeable rippled bed initially moved back and forth around the ripple crest, with increasing vertical distance from the rippled wall. After one or two wave periods, they are then lifted towards the next ripple crest. All of the marked particles on a permeable rippled bed were shifted onshore with a much larger displacement than those on an impermeable bed. Finally, the flow fields and the particle motions close to impermeable and permeable beds induced by a solitary wave are elucidated.","downloadable_attachments":[{"id":53950313,"asset_id":34002937,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":66647037,"first_name":"Ching-jer","last_name":"Huang","domain_name":"independent","page_name":"HuangChingjer","display_name":"Ching-jer Huang","profile_url":"https://independent.academia.edu/HuangChingjer?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=192294","nofollow":true},{"id":81,"name":"Ocean Engineering","url":"https://www.academia.edu/Documents/in/Ocean_Engineering?f_ri=192294","nofollow":true},{"id":6177,"name":"Modeling","url":"https://www.academia.edu/Documents/in/Modeling?f_ri=192294","nofollow":true},{"id":59770,"name":"Trajectory","url":"https://www.academia.edu/Documents/in/Trajectory?f_ri=192294","nofollow":true},{"id":94596,"name":"Water Waves","url":"https://www.academia.edu/Documents/in/Water_Waves?f_ri=192294"},{"id":152690,"name":"Boundary Conditions","url":"https://www.academia.edu/Documents/in/Boundary_Conditions?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":236377,"name":"Spatial Distribution","url":"https://www.academia.edu/Documents/in/Spatial_Distribution?f_ri=192294"},{"id":260010,"name":"Wave propagation","url":"https://www.academia.edu/Documents/in/Wave_propagation?f_ri=192294"},{"id":337500,"name":"Velocity","url":"https://www.academia.edu/Documents/in/Velocity?f_ri=192294"},{"id":471104,"name":"Maritime Engineering","url":"https://www.academia.edu/Documents/in/Maritime_Engineering?f_ri=192294"},{"id":477461,"name":"Coastal Zone","url":"https://www.academia.edu/Documents/in/Coastal_Zone?f_ri=192294"},{"id":610554,"name":"Ocean Dynamics","url":"https://www.academia.edu/Documents/in/Ocean_Dynamics?f_ri=192294"},{"id":875521,"name":"Solitary Wave","url":"https://www.academia.edu/Documents/in/Solitary_Wave?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4416890" data-work_id="4416890" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4416890/Comparison_of_methods_for_analysing_salmon_habitat_rehabilitation_designs_for_regulated_rivers">Comparison of methods for analysing salmon habitat rehabilitation designs for regulated rivers</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">River restoration practices aiming to sustain wild salmonid populations have received considerable attention in the Unites States and abroad, as cumulative anthropogenic impacts have caused fish population declines. An accurate... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4416890" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">River restoration practices aiming to sustain wild salmonid populations have received considerable attention in the Unites States and abroad, as cumulative anthropogenic impacts have caused fish population declines. An accurate representation of local depth and velocity in designs of spatially complex riffle-pool units is paramount for evaluating such practices, because these two variables constitute key instream habitat requirements and they can be used to predict channel stability. In this study, three models for predicting channel hydraulics—1D analytical, 1D numerical and 2D numerical—were compared for two theoretical spawning habitat rehabilitation (SHR) designs at two discharges to constrain the utility of these models for use in river restoration design evaluation. Hydraulic predictions from each method were used in the same physical habitat quality and sediment transport regime equations to determine how deviations propagated through those highly nonlinear functions to influence site assessments. The results showed that riffle-pool hydraulics, sediment transport regime and physical habitat quality were very poorly estimated using the 1D analytical method. The 1D and 2D numerical models did capture characteristic longitudinal profiles in cross-sectionally averaged variables. The deviation of both 1D approaches from the spatially distributed 2D model was found to be greatest at the low discharge for an oblique riffle crest with converging cross-stream flow vectors. As decision making for river rehabilitation is dependent on methods used to evaluate designs, this analysis provides managers with an awareness of the limitations used in developing designs and recommendations using the tested methods. Copyright © 2008 John Wiley & Sons, Ltd.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4416890" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f038d15d89b6449d0df7a928448025df" rel="nofollow" data-download="{"attachment_id":49872508,"asset_id":4416890,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49872508/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5421381" href="https://et.academia.edu/RockoBrown">Rocko Brown</a><script data-card-contents-for-user="5421381" type="text/json">{"id":5421381,"first_name":"Rocko","last_name":"Brown","domain_name":"et","page_name":"RockoBrown","display_name":"Rocko Brown","profile_url":"https://et.academia.edu/RockoBrown?f_ri=192294","photo":"https://0.academia-photos.com/5421381/2382473/2774530/s65_rocko.brown.jpg"}</script></span></span></li><li class="js-paper-rank-work_4416890 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4416890"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4416890, container: ".js-paper-rank-work_4416890", }); 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$(".js-view-count[data-work-id=4416890]").text(description); $(".js-view-count-work_4416890").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4416890").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4416890"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">16</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="55" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Engineering">Environmental Engineering</a>, <script data-card-contents-for-ri="55" type="text/json">{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="988" rel="nofollow" href="https://www.academia.edu/Documents/in/Design">Design</a>, <script data-card-contents-for-ri="988" type="text/json">{"id":988,"name":"Design","url":"https://www.academia.edu/Documents/in/Design?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2550" rel="nofollow" href="https://www.academia.edu/Documents/in/Hydraulics">Hydraulics</a>, <script data-card-contents-for-ri="2550" type="text/json">{"id":2550,"name":"Hydraulics","url":"https://www.academia.edu/Documents/in/Hydraulics?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="6177" rel="nofollow" href="https://www.academia.edu/Documents/in/Modeling">Modeling</a><script data-card-contents-for-ri="6177" type="text/json">{"id":6177,"name":"Modeling","url":"https://www.academia.edu/Documents/in/Modeling?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4416890]'), work: {"id":4416890,"title":"Comparison of methods for analysing salmon habitat rehabilitation designs for regulated rivers","created_at":"2013-09-05T13:11:19.238-07:00","url":"https://www.academia.edu/4416890/Comparison_of_methods_for_analysing_salmon_habitat_rehabilitation_designs_for_regulated_rivers?f_ri=192294","dom_id":"work_4416890","summary":"River restoration practices aiming to sustain wild salmonid populations have received considerable attention in the Unites States and abroad, as cumulative anthropogenic impacts have caused fish population declines. An accurate representation of local depth and velocity in designs of spatially complex riffle-pool units is paramount for evaluating such practices, because these two variables constitute key instream habitat requirements and they can be used to predict channel stability. In this study, three models for predicting channel hydraulics—1D analytical, 1D numerical and 2D numerical—were compared for two theoretical spawning habitat rehabilitation (SHR) designs at two discharges to constrain the utility of these models for use in river restoration design evaluation. Hydraulic predictions from each method were used in the same physical habitat quality and sediment transport regime equations to determine how deviations propagated through those highly nonlinear functions to influence site assessments. The results showed that riffle-pool hydraulics, sediment transport regime and physical habitat quality were very poorly estimated using the 1D analytical method. The 1D and 2D numerical models did capture characteristic longitudinal profiles in cross-sectionally averaged variables. The deviation of both 1D approaches from the spatially distributed 2D model was found to be greatest at the low discharge for an oblique riffle crest with converging cross-stream flow vectors. As decision making for river rehabilitation is dependent on methods used to evaluate designs, this analysis provides managers with an awareness of the limitations used in developing designs and recommendations using the tested methods. Copyright © 2008 John Wiley \u0026 Sons, Ltd.","downloadable_attachments":[{"id":49872508,"asset_id":4416890,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5421381,"first_name":"Rocko","last_name":"Brown","domain_name":"et","page_name":"RockoBrown","display_name":"Rocko Brown","profile_url":"https://et.academia.edu/RockoBrown?f_ri=192294","photo":"https://0.academia-photos.com/5421381/2382473/2774530/s65_rocko.brown.jpg"}],"research_interests":[{"id":55,"name":"Environmental Engineering","url":"https://www.academia.edu/Documents/in/Environmental_Engineering?f_ri=192294","nofollow":true},{"id":988,"name":"Design","url":"https://www.academia.edu/Documents/in/Design?f_ri=192294","nofollow":true},{"id":2550,"name":"Hydraulics","url":"https://www.academia.edu/Documents/in/Hydraulics?f_ri=192294","nofollow":true},{"id":6177,"name":"Modeling","url":"https://www.academia.edu/Documents/in/Modeling?f_ri=192294","nofollow":true},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=192294"},{"id":17588,"name":"Fish population genetics","url":"https://www.academia.edu/Documents/in/Fish_population_genetics?f_ri=192294"},{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294"},{"id":65140,"name":"Models","url":"https://www.academia.edu/Documents/in/Models?f_ri=192294"},{"id":85707,"name":"Habitat","url":"https://www.academia.edu/Documents/in/Habitat?f_ri=192294"},{"id":107083,"name":"Method","url":"https://www.academia.edu/Documents/in/Method?f_ri=192294"},{"id":146056,"name":"Channel","url":"https://www.academia.edu/Documents/in/Channel?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":192651,"name":"Stream","url":"https://www.academia.edu/Documents/in/Stream?f_ri=192294"},{"id":453489,"name":"Spawning","url":"https://www.academia.edu/Documents/in/Spawning?f_ri=192294"},{"id":1957240,"name":"ENVIRONMENTAL SCIENCE AND MANAGEMENT","url":"https://www.academia.edu/Documents/in/ENVIRONMENTAL_SCIENCE_AND_MANAGEMENT?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_7110313" data-work_id="7110313" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/7110313/PCB_accumulation_and_tissue_distribution_in_cave_salamander_Proteus_anguinus_anguinus_Amphibia_Urodela_in_the_polluted_karstic_hinterland_of_the_Krupa_River_Slovenia">PCB accumulation and tissue distribution in cave salamander ( Proteus anguinus anguinus, Amphibia, Urodela) in the polluted karstic hinterland of the Krupa River, Slovenia</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item 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Sulfate","url":"https://www.academia.edu/Documents/in/Calcium_Sulfate?f_ri=192294"},{"id":2261076,"name":"Proteidae","url":"https://www.academia.edu/Documents/in/Proteidae?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_30491649" data-work_id="30491649" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/30491649/Nematode_response_to_metal_PAHs_and_organic_enrichment_in_tourist_marinas_of_the_mediterranean_sea">Nematode response to metal, PAHs and organic enrichment in tourist marinas of the mediterranean sea</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The structure of nematode assemblages was investigated in the sediments of two different tourist marinas in the Mediterranean Sea and related to pollution variables. Nematode densities and generic compositions were determined, as were... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_30491649" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The structure of nematode assemblages was investigated in the sediments of two different tourist marinas in the Mediterranean Sea and related to pollution variables. Nematode densities and generic compositions were determined, as were concentrations of heavy metals, PAHs and organic matter. Results showed different assemblages at the two marinas, with a dominance of the genera Paralongicyatholaimus and Daptonema. Significant correlations between nematodes and concentrations of environmental contaminants were found. In particular, Paralongicyatholaimus showed a significant negative correlation with Cu concentrations and was almost absent at the stations where higher Cu concentrations were found. The presence of sensitive/tolerant nematode genera represents a promising tool to identify areas subjected to a higher level of disturbance and to define the correct environmental management strategy for harbors.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/30491649" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="40e9e7dc75f92ce92fbed9df41e08682" rel="nofollow" data-download="{"attachment_id":50930841,"asset_id":30491649,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/50930841/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="56532742" href="https://independent.academia.edu/MauroFabiano1">Mauro Fabiano</a><script data-card-contents-for-user="56532742" type="text/json">{"id":56532742,"first_name":"Mauro","last_name":"Fabiano","domain_name":"independent","page_name":"MauroFabiano1","display_name":"Mauro Fabiano","profile_url":"https://independent.academia.edu/MauroFabiano1?f_ri=192294","photo":"https://0.academia-photos.com/56532742/15156148/15851006/s65_mauro.fabiano.jpg"}</script></span></span></li><li class="js-paper-rank-work_30491649 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="30491649"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 30491649, container: ".js-paper-rank-work_30491649", }); 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Nematode densities and generic compositions were determined, as were concentrations of heavy metals, PAHs and organic matter. Results showed different assemblages at the two marinas, with a dominance of the genera Paralongicyatholaimus and Daptonema. Significant correlations between nematodes and concentrations of environmental contaminants were found. In particular, Paralongicyatholaimus showed a significant negative correlation with Cu concentrations and was almost absent at the stations where higher Cu concentrations were found. The presence of sensitive/tolerant nematode genera represents a promising tool to identify areas subjected to a higher level of disturbance and to define the correct environmental management strategy for harbors.","downloadable_attachments":[{"id":50930841,"asset_id":30491649,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":56532742,"first_name":"Mauro","last_name":"Fabiano","domain_name":"independent","page_name":"MauroFabiano1","display_name":"Mauro Fabiano","profile_url":"https://independent.academia.edu/MauroFabiano1?f_ri=192294","photo":"https://0.academia-photos.com/56532742/15156148/15851006/s65_mauro.fabiano.jpg"}],"research_interests":[{"id":3614,"name":"Structure","url":"https://www.academia.edu/Documents/in/Structure?f_ri=192294","nofollow":true},{"id":7609,"name":"Environmental Management","url":"https://www.academia.edu/Documents/in/Environmental_Management?f_ri=192294","nofollow":true},{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294","nofollow":true},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294","nofollow":true},{"id":50243,"name":"Mediterranean Sea","url":"https://www.academia.edu/Documents/in/Mediterranean_Sea?f_ri=192294"},{"id":57697,"name":"Heavy metals","url":"https://www.academia.edu/Documents/in/Heavy_metals?f_ri=192294"},{"id":57928,"name":"Travel","url":"https://www.academia.edu/Documents/in/Travel?f_ri=192294"},{"id":111050,"name":"Heavy Metal","url":"https://www.academia.edu/Documents/in/Heavy_Metal?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":198066,"name":"Contamination","url":"https://www.academia.edu/Documents/in/Contamination?f_ri=192294"},{"id":281150,"name":"Polycyclic aromatic hydrocarbons (PAHs)","url":"https://www.academia.edu/Documents/in/Polycyclic_aromatic_hydrocarbons_PAHs_?f_ri=192294"},{"id":390245,"name":"Particle Size","url":"https://www.academia.edu/Documents/in/Particle_Size?f_ri=192294"},{"id":448571,"name":"Contaminants","url":"https://www.academia.edu/Documents/in/Contaminants?f_ri=192294"},{"id":481402,"name":"Ships","url":"https://www.academia.edu/Documents/in/Ships?f_ri=192294"},{"id":529173,"name":"Nematoda","url":"https://www.academia.edu/Documents/in/Nematoda?f_ri=192294"},{"id":709300,"name":"Trace element","url":"https://www.academia.edu/Documents/in/Trace_element?f_ri=192294"},{"id":970387,"name":"Organic Matter","url":"https://www.academia.edu/Documents/in/Organic_Matter?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_13092103 coauthored" data-work_id="13092103" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/13092103/Avoidance_of_contaminated_sediments_by_an_amphipod_Melita_plumulosa_A_harpacticoid_copepod_Nitocra_spinipes_and_a_snail_Phallomedusa_solida_">Avoidance of contaminated sediments by an amphipod ( Melita plumulosa ), A harpacticoid copepod ( Nitocra spinipes ), and a snail ( Phallomedusa solida )</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The distribution of contaminants is seldom homogeneous in aquatic systems. In the present study, the avoidance response of Melita plumulosa, Nitocra spinipes, and Phallomedusa solida when exposed to contaminated sediments was... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_13092103" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The distribution of contaminants is seldom homogeneous in aquatic systems. In the present study, the avoidance response of Melita plumulosa, Nitocra spinipes, and Phallomedusa solida when exposed to contaminated sediments was investigated. Test vessels were designed to allow the congruent placement of two sediments and assessment of the movement of organisms between the sediments. When exposed to reference sediment, each species dispersed evenly between test chambers regardless of differences in sediment particle size. In the presence of contaminated sediment, the magnitude and rate of avoidance varied. Avoidance assays showed that test species avoided contaminated sediment as early as 6, 6, and 24 h following exposure for N. spinipes, P. solida, and M. plumulosa, respectively. The 48-h avoidance response of M. plumulosa for nine contaminated sediments of varying toxicity showed that avoidance was generally greater for sediments which elicited greater 10-d lethality to this species. The study demonstrated that each of these species has the ability to respond to chemical cues in the environment to inhabit sediment that provides the best opportunity for survival. The avoidance response for each species indicates the potential for developing rapid screening methods to assess sediment quality. Evidence suggests that avoidance was related to sediment toxicity and that static 10-d toxicity methods are likely to overestimate toxicity for species, which would avoid contamination in heterogeneous field settings. Environ. Toxicol. Chem. 2013;32:644-652. # 2012 SETAC Keywords-Behavioral endpoint Sediment toxicity Chemoreception Chronic Benthic invertebrate Avoidance of contaminated sediment by benthic invertebrates Environ. Toxicol. Chem. 32, 2013 645 Environ. Toxicol. Chem. 32, 2013 D.J. Ward et al.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/13092103" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2e4b2b178bff43607fe258d5781e6bcf" rel="nofollow" data-download="{"attachment_id":45678121,"asset_id":13092103,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45678121/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="32340914" href="https://csiro.academia.edu/StuartSimpson">Stuart Simpson</a><script data-card-contents-for-user="32340914" type="text/json">{"id":32340914,"first_name":"Stuart","last_name":"Simpson","domain_name":"csiro","page_name":"StuartSimpson","display_name":"Stuart Simpson","profile_url":"https://csiro.academia.edu/StuartSimpson?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-13092103">+1</span><div class="hidden js-additional-users-13092103"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://uow.academia.edu/DianneJolley">Dianne F Jolley</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-13092103'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-13092103').html(); 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In the present study, the avoidance response of Melita plumulosa, Nitocra spinipes, and Phallomedusa solida when exposed to contaminated sediments was investigated. Test vessels were designed to allow the congruent placement of two sediments and assessment of the movement of organisms between the sediments. When exposed to reference sediment, each species dispersed evenly between test chambers regardless of differences in sediment particle size. In the presence of contaminated sediment, the magnitude and rate of avoidance varied. Avoidance assays showed that test species avoided contaminated sediment as early as 6, 6, and 24 h following exposure for N. spinipes, P. solida, and M. plumulosa, respectively. The 48-h avoidance response of M. plumulosa for nine contaminated sediments of varying toxicity showed that avoidance was generally greater for sediments which elicited greater 10-d lethality to this species. The study demonstrated that each of these species has the ability to respond to chemical cues in the environment to inhabit sediment that provides the best opportunity for survival. The avoidance response for each species indicates the potential for developing rapid screening methods to assess sediment quality. Evidence suggests that avoidance was related to sediment toxicity and that static 10-d toxicity methods are likely to overestimate toxicity for species, which would avoid contamination in heterogeneous field settings. Environ. Toxicol. Chem. 2013;32:644-652. # 2012 SETAC Keywords-Behavioral endpoint Sediment toxicity Chemoreception Chronic Benthic invertebrate Avoidance of contaminated sediment by benthic invertebrates Environ. Toxicol. Chem. 32, 2013 645 Environ. Toxicol. Chem. 32, 2013 D.J. Ward et al.","downloadable_attachments":[{"id":45678121,"asset_id":13092103,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":32340914,"first_name":"Stuart","last_name":"Simpson","domain_name":"csiro","page_name":"StuartSimpson","display_name":"Stuart Simpson","profile_url":"https://csiro.academia.edu/StuartSimpson?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":32386266,"first_name":"Dianne","last_name":"Jolley","domain_name":"uow","page_name":"DianneJolley","display_name":"Dianne F Jolley","profile_url":"https://uow.academia.edu/DianneJolley?f_ri=192294","photo":"https://0.academia-photos.com/32386266/11019438/12297214/s65_dianne.jolley.jpg"}],"research_interests":[{"id":2749,"name":"Animal Behavior","url":"https://www.academia.edu/Documents/in/Animal_Behavior?f_ri=192294","nofollow":true},{"id":4552,"name":"Ecotoxicology","url":"https://www.academia.edu/Documents/in/Ecotoxicology?f_ri=192294","nofollow":true},{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true},{"id":11801,"name":"Environmental Monitoring","url":"https://www.academia.edu/Documents/in/Environmental_Monitoring?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294"},{"id":48259,"name":"Copepoda","url":"https://www.academia.edu/Documents/in/Copepoda?f_ri=192294"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":63408,"name":"Amphipoda","url":"https://www.academia.edu/Documents/in/Amphipoda?f_ri=192294"},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294"},{"id":90906,"name":"Chemoreception","url":"https://www.academia.edu/Documents/in/Chemoreception?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":186440,"name":"Snails","url":"https://www.academia.edu/Documents/in/Snails?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":322539,"name":"Benthos","url":"https://www.academia.edu/Documents/in/Benthos?f_ri=192294"},{"id":882010,"name":"Environmental Toxicology and Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Toxicology_and_Chemistry?f_ri=192294"},{"id":1109769,"name":"Biological Assay","url":"https://www.academia.edu/Documents/in/Biological_Assay?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":2451403,"name":"Avoidance Learning","url":"https://www.academia.edu/Documents/in/Avoidance_Learning?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_12994959 coauthored" data-work_id="12994959" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/12994959/Sources_of_Heavy_Metals_and_Their_Long_term_Effects_on_Microbial_C_N_and_P_Relationships_in_Soil">Sources of Heavy Metals and Their Long-term Effects on Microbial C, N and P Relationships in Soil</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The effects of heavy metals (Zn, Pb, and Cu) on microbial biomass C, N, and P were assessed in soils contaminated over a wide range by sewage sludge, exhaust dust deposition of a lead factory and river sediments of mining residues.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_12994959" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The effects of heavy metals (Zn, Pb, and Cu) on microbial biomass C, N, and P were assessed in soils contaminated over a wide range by sewage sludge, exhaust dust deposition of a lead factory and river sediments of mining residues. Microbial biomass C, N, and P did not show any clear heavy metal effect related to soil dry weight. Also the ratios of microbial biomass C/N and biomass C/P remained unaffected by heavy metals. The ratios of microbial biomass C/ soil organic C, biomass N/total N, and biomass P/total P were all negatively affected by increasing concentrations of Zn, Pb, and Cu as detected by a sourcespecific analysis of covariance using the different heavy metal fractions as covariate. Negative effects of Zn on the ratios microbial biomass C/soil organic C and biomass N/total N increased with increasing metal solubility in the order: (X-ray fluorescence analysis) XFA-detectable <HNO 3 <EDTA ≪NH 4 NO 3 -extractable Zn. The Zn effects on the microbial biomass N/total N were always smaller than those on the microbial biomass C/soil organic C ratio. The same was true for all effects of the Pb and Cu fractions on these two ratios. For this reason, the deposition of highly soluble Zn and Pb by exhaust dust has the most negative effects, although sediments contained the maximum total burden of Zn and Pb. All fractions of Zn, Pb, and Cu had similar negative effects on the microbial biomass P/total P ratio, although the NH 4 NO 3 -extractable fraction again showed the most pronounced effects.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/12994959" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="c5881ea24a4c374d514b6abde9da1d6e" rel="nofollow" data-download="{"attachment_id":45792612,"asset_id":12994959,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45792612/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="32209214" href="https://ditsl.academia.edu/RainerJoergensen">Rainer Joergensen</a><script data-card-contents-for-user="32209214" type="text/json">{"id":32209214,"first_name":"Rainer","last_name":"Joergensen","domain_name":"ditsl","page_name":"RainerJoergensen","display_name":"Rainer Joergensen","profile_url":"https://ditsl.academia.edu/RainerJoergensen?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-12994959">+1</span><div class="hidden js-additional-users-12994959"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://xn--uni-gttingen-8ib.academia.edu/NorbertLamersdorf">Norbert Lamersdorf</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-12994959'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-12994959').html(); 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Microbial biomass C, N, and P did not show any clear heavy metal effect related to soil dry weight. Also the ratios of microbial biomass C/N and biomass C/P remained unaffected by heavy metals. The ratios of microbial biomass C/ soil organic C, biomass N/total N, and biomass P/total P were all negatively affected by increasing concentrations of Zn, Pb, and Cu as detected by a sourcespecific analysis of covariance using the different heavy metal fractions as covariate. Negative effects of Zn on the ratios microbial biomass C/soil organic C and biomass N/total N increased with increasing metal solubility in the order: (X-ray fluorescence analysis) XFA-detectable \u003cHNO 3 \u003cEDTA ≪NH 4 NO 3 -extractable Zn. The Zn effects on the microbial biomass N/total N were always smaller than those on the microbial biomass C/soil organic C ratio. The same was true for all effects of the Pb and Cu fractions on these two ratios. For this reason, the deposition of highly soluble Zn and Pb by exhaust dust has the most negative effects, although sediments contained the maximum total burden of Zn and Pb. All fractions of Zn, Pb, and Cu had similar negative effects on the microbial biomass P/total P ratio, although the NH 4 NO 3 -extractable fraction again showed the most pronounced effects.","downloadable_attachments":[{"id":45792612,"asset_id":12994959,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":32209214,"first_name":"Rainer","last_name":"Joergensen","domain_name":"ditsl","page_name":"RainerJoergensen","display_name":"Rainer Joergensen","profile_url":"https://ditsl.academia.edu/RainerJoergensen?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":32273849,"first_name":"Norbert","last_name":"Lamersdorf","domain_name":"xn--uni-gttingen-8ib","page_name":"NorbertLamersdorf","display_name":"Norbert Lamersdorf","profile_url":"https://xn--uni-gttingen-8ib.academia.edu/NorbertLamersdorf?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":421,"name":"Soil Science","url":"https://www.academia.edu/Documents/in/Soil_Science?f_ri=192294","nofollow":true},{"id":4552,"name":"Ecotoxicology","url":"https://www.academia.edu/Documents/in/Ecotoxicology?f_ri=192294","nofollow":true},{"id":15368,"name":"Soil Chemistry","url":"https://www.academia.edu/Documents/in/Soil_Chemistry?f_ri=192294","nofollow":true},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294","nofollow":true},{"id":47477,"name":"Soil Pollution","url":"https://www.academia.edu/Documents/in/Soil_Pollution?f_ri=192294"},{"id":53108,"name":"Phosphorus","url":"https://www.academia.edu/Documents/in/Phosphorus?f_ri=192294"},{"id":67433,"name":"Soil contamination","url":"https://www.academia.edu/Documents/in/Soil_contamination?f_ri=192294"},{"id":67661,"name":"Sewage sludge","url":"https://www.academia.edu/Documents/in/Sewage_sludge?f_ri=192294"},{"id":69825,"name":"Negative Affect","url":"https://www.academia.edu/Documents/in/Negative_Affect?f_ri=192294"},{"id":111050,"name":"Heavy Metal","url":"https://www.academia.edu/Documents/in/Heavy_Metal?f_ri=192294"},{"id":116579,"name":"Lead","url":"https://www.academia.edu/Documents/in/Lead?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":192651,"name":"Stream","url":"https://www.academia.edu/Documents/in/Stream?f_ri=192294"},{"id":251645,"name":"Microbial Biomass","url":"https://www.academia.edu/Documents/in/Microbial_Biomass?f_ri=192294"},{"id":525333,"name":"total P","url":"https://www.academia.edu/Documents/in/total_P?f_ri=192294"},{"id":538342,"name":"Pollutant","url":"https://www.academia.edu/Documents/in/Pollutant?f_ri=192294"},{"id":585192,"name":"Organic carbon","url":"https://www.academia.edu/Documents/in/Organic_carbon?f_ri=192294"},{"id":704293,"name":"Chemical Properties","url":"https://www.academia.edu/Documents/in/Chemical_Properties?f_ri=192294"},{"id":783432,"name":"Biological activity","url":"https://www.academia.edu/Documents/in/Biological_activity?f_ri=192294"},{"id":800515,"name":"Long Term Effect","url":"https://www.academia.edu/Documents/in/Long_Term_Effect?f_ri=192294"},{"id":908385,"name":"Long Term","url":"https://www.academia.edu/Documents/in/Long_Term?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_34718196" data-work_id="34718196" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/34718196/Flow_and_Sediment_Transport_on_a_Tidal_Salt_Marsh_Surface">Flow and Sediment Transport on a Tidal Salt Marsh Surface</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The physical processes that control mineral sediment deposition on a mesotidal salt marsh surface on the Atlantic Coast of Virginia were characterized through a series of measurements of sediment concentration, flow velocity, turbulence,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_34718196" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The physical processes that control mineral sediment deposition on a mesotidal salt marsh surface on the Atlantic Coast of Virginia were characterized through a series of measurements of sediment concentration, flow velocity, turbulence, water surface elevation, marsh topography and particle size distributions of sediment deposited on the marsh surface. The comprehensive nature of the data set allowed assessment of the temporal and spatial variability in marsh surface deposition, the variability in depositional processes among tides of different amplitudes, as well as the specific processes that control deposition on this tidal marsh. Through three different types of measurements, it was found that sediment deposition occurred on the marsh surface during rising tides at tidal elevations ranging from those barely flooding the creek bank to high spring tides, and that sediment was not remobilized by tidal flows after initial deposition. Sediment deposition occurred on this marsh surface largely because fine sediment in suspension formed flocs. Analysis of inorganic grain size distributions of sediment deposited within 8 m of the tidal creek indicated that 70-80% of this sediment was deposited in a flocculated form. The rest (particles larger than 20 m) were deposited as individual particles. In the marsh interior, 25 m from the tidal creek, single grain settling predominated. Reduction of turbulence levels within the vegetation canopy on the marsh also promoted particle settling. The processes controlling sediment deposition did not vary among tides. However, suspended sediment concentrations near the creek bank increased with increasing tidal amplitude, consequently promoting higher rates of deposition on higher tides.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/34718196" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4493247cd9392dc1aec6cc3cf8d32ac3" rel="nofollow" data-download="{"attachment_id":54574944,"asset_id":34718196,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/54574944/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="68841570" href="https://independent.academia.edu/TimothyMilligan">Timothy Milligan</a><script data-card-contents-for-user="68841570" type="text/json">{"id":68841570,"first_name":"Timothy","last_name":"Milligan","domain_name":"independent","page_name":"TimothyMilligan","display_name":"Timothy Milligan","profile_url":"https://independent.academia.edu/TimothyMilligan?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_34718196 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="34718196"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 34718196, container: ".js-paper-rank-work_34718196", }); 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The comprehensive nature of the data set allowed assessment of the temporal and spatial variability in marsh surface deposition, the variability in depositional processes among tides of different amplitudes, as well as the specific processes that control deposition on this tidal marsh. Through three different types of measurements, it was found that sediment deposition occurred on the marsh surface during rising tides at tidal elevations ranging from those barely flooding the creek bank to high spring tides, and that sediment was not remobilized by tidal flows after initial deposition. Sediment deposition occurred on this marsh surface largely because fine sediment in suspension formed flocs. Analysis of inorganic grain size distributions of sediment deposited within 8 m of the tidal creek indicated that 70-80% of this sediment was deposited in a flocculated form. The rest (particles larger than 20 m) were deposited as individual particles. In the marsh interior, 25 m from the tidal creek, single grain settling predominated. Reduction of turbulence levels within the vegetation canopy on the marsh also promoted particle settling. The processes controlling sediment deposition did not vary among tides. However, suspended sediment concentrations near the creek bank increased with increasing tidal amplitude, consequently promoting higher rates of deposition on higher tides.","downloadable_attachments":[{"id":54574944,"asset_id":34718196,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":68841570,"first_name":"Timothy","last_name":"Milligan","domain_name":"independent","page_name":"TimothyMilligan","display_name":"Timothy Milligan","profile_url":"https://independent.academia.edu/TimothyMilligan?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":2802,"name":"Turbulence","url":"https://www.academia.edu/Documents/in/Turbulence?f_ri=192294","nofollow":true},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=192294","nofollow":true},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294","nofollow":true},{"id":60194,"name":"Transport","url":"https://www.academia.edu/Documents/in/Transport?f_ri=192294"},{"id":113501,"name":"Sediment transport","url":"https://www.academia.edu/Documents/in/Sediment_transport?f_ri=192294"},{"id":134201,"name":"Deposition","url":"https://www.academia.edu/Documents/in/Deposition?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":216893,"name":"Grain size distribution","url":"https://www.academia.edu/Documents/in/Grain_size_distribution?f_ri=192294"},{"id":241820,"name":"Spatial Variability","url":"https://www.academia.edu/Documents/in/Spatial_Variability?f_ri=192294"},{"id":576179,"name":"Salt marsh","url":"https://www.academia.edu/Documents/in/Salt_marsh?f_ri=192294"},{"id":601516,"name":"Flow Velocity","url":"https://www.academia.edu/Documents/in/Flow_Velocity?f_ri=192294"},{"id":620328,"name":"Sediment Transport","url":"https://www.academia.edu/Documents/in/Sediment_Transport-5?f_ri=192294"},{"id":675159,"name":"Long Term Ecological Research","url":"https://www.academia.edu/Documents/in/Long_Term_Ecological_Research?f_ri=192294"},{"id":1136005,"name":"Particle Size Distribution","url":"https://www.academia.edu/Documents/in/Particle_Size_Distribution?f_ri=192294"},{"id":1339942,"name":"Suspended Sediment Concentration","url":"https://www.academia.edu/Documents/in/Suspended_Sediment_Concentration?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4502860" data-work_id="4502860" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4502860/The_effects_of_motorway_runoff_on_freshwater_ecosystems_1_Field_study">The effects of motorway runoff on freshwater ecosystems. 1: Field study</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4502860" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case situations. Because discharges contain a wide variety of contaminants, both the identification of toxicants and the establishment of causal relationships between observed changes in waterhediment quality and biology are often difficult. In this particular case, the problem was addressed by conducting a series of toxicity tests using the benthic amphipod Gummnruspulex. The abundance of this species was greatly reduced downstream of the point where motorway runoff entered the stream. Stream water contaminated with motorway runoff was not toxic to G. pulex. However, exposure to contaminated sediments resulted in a slight reduction in survival over 14 d, and sediment manipulation experiments identified hydrocarbons, copper, and zinc as potential toxicants. Spiking experiments confirmed the importance of hydrocarbons, and fractionation studies indicated that most of the observed toxicity was due to the fraction containing polycyclic aromatic hydrocarbons. Animals exposed to contaminated sediments and water spiked with sediment extract accumulated aromatic hydrocarbons in direct proportion to exposure concentrations.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4502860" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="c66be9647ee52c84b48e2ffe36391900" rel="nofollow" data-download="{"attachment_id":49819724,"asset_id":4502860,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49819724/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3541905" href="https://york.academia.edu/alistairboxall">alistair boxall</a><script data-card-contents-for-user="3541905" type="text/json">{"id":3541905,"first_name":"alistair","last_name":"boxall","domain_name":"york","page_name":"alistairboxall","display_name":"alistair boxall","profile_url":"https://york.academia.edu/alistairboxall?f_ri=192294","photo":"https://0.academia-photos.com/3541905/20629792/20230573/s65_alistair.boxall.jpg"}</script></span></span></li><li class="js-paper-rank-work_4502860 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4502860"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4502860, container: ".js-paper-rank-work_4502860", }); 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$(".js-view-count[data-work-id=4502860]").text(description); $(".js-view-count-work_4502860").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4502860").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4502860"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">39</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="402" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Science">Environmental Science</a>, <script data-card-contents-for-ri="402" type="text/json">{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4523" rel="nofollow" href="https://www.academia.edu/Documents/in/Water_quality">Water quality</a>, <script data-card-contents-for-ri="4523" type="text/json">{"id":4523,"name":"Water quality","url":"https://www.academia.edu/Documents/in/Water_quality?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="7049" rel="nofollow" href="https://www.academia.edu/Documents/in/Crustacea">Crustacea</a>, <script data-card-contents-for-ri="7049" type="text/json">{"id":7049,"name":"Crustacea","url":"https://www.academia.edu/Documents/in/Crustacea?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21724" rel="nofollow" href="https://www.academia.edu/Documents/in/Water_Pollution">Water Pollution</a><script data-card-contents-for-ri="21724" type="text/json">{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4502860]'), work: {"id":4502860,"title":"The effects of motorway runoff on freshwater ecosystems. 1: Field study","created_at":"2013-09-16T15:10:15.762-07:00","url":"https://www.academia.edu/4502860/The_effects_of_motorway_runoff_on_freshwater_ecosystems_1_Field_study?f_ri=192294","dom_id":"work_4502860","summary":"Previous studies have provided prima facie evidence that runoff from the MI motorway, UK, affects both the quality of the receiving water and the biota living there, in sites short distances from point sources-i.e., possible worst-case situations. Because discharges contain a wide variety of contaminants, both the identification of toxicants and the establishment of causal relationships between observed changes in waterhediment quality and biology are often difficult. In this particular case, the problem was addressed by conducting a series of toxicity tests using the benthic amphipod Gummnruspulex. The abundance of this species was greatly reduced downstream of the point where motorway runoff entered the stream. Stream water contaminated with motorway runoff was not toxic to G. pulex. However, exposure to contaminated sediments resulted in a slight reduction in survival over 14 d, and sediment manipulation experiments identified hydrocarbons, copper, and zinc as potential toxicants. Spiking experiments confirmed the importance of hydrocarbons, and fractionation studies indicated that most of the observed toxicity was due to the fraction containing polycyclic aromatic hydrocarbons. Animals exposed to contaminated sediments and water spiked with sediment extract accumulated aromatic hydrocarbons in direct proportion to exposure concentrations.","downloadable_attachments":[{"id":49819724,"asset_id":4502860,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3541905,"first_name":"alistair","last_name":"boxall","domain_name":"york","page_name":"alistairboxall","display_name":"alistair boxall","profile_url":"https://york.academia.edu/alistairboxall?f_ri=192294","photo":"https://0.academia-photos.com/3541905/20629792/20230573/s65_alistair.boxall.jpg"}],"research_interests":[{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=192294","nofollow":true},{"id":4523,"name":"Water 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Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences?f_ri=192294"},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294"},{"id":80692,"name":"Copper","url":"https://www.academia.edu/Documents/in/Copper?f_ri=192294"},{"id":111050,"name":"Heavy Metal","url":"https://www.academia.edu/Documents/in/Heavy_Metal?f_ri=192294"},{"id":151778,"name":"Chromium","url":"https://www.academia.edu/Documents/in/Chromium?f_ri=192294"},{"id":155340,"name":"Sediments","url":"https://www.academia.edu/Documents/in/Sediments?f_ri=192294"},{"id":158165,"name":"Zinc","url":"https://www.academia.edu/Documents/in/Zinc?f_ri=192294"},{"id":164753,"name":"Aquatic Ecosystems","url":"https://www.academia.edu/Documents/in/Aquatic_Ecosystems?f_ri=192294"},{"id":184001,"name":"Polycyclic Aromatic Hydrocarbon","url":"https://www.academia.edu/Documents/in/Polycyclic_Aromatic_Hydrocarbon?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":192651,"name":"Stream","url":"https://www.academia.edu/Documents/in/Stream?f_ri=192294"},{"id":239810,"name":"Field Study","url":"https://www.academia.edu/Documents/in/Field_Study?f_ri=192294"},{"id":260118,"name":"CHEMICAL SCIENCES","url":"https://www.academia.edu/Documents/in/CHEMICAL_SCIENCES?f_ri=192294"},{"id":281150,"name":"Polycyclic aromatic hydrocarbons (PAHs)","url":"https://www.academia.edu/Documents/in/Polycyclic_aromatic_hydrocarbons_PAHs_?f_ri=192294"},{"id":322539,"name":"Benthos","url":"https://www.academia.edu/Documents/in/Benthos?f_ri=192294"},{"id":351263,"name":"Community Change","url":"https://www.academia.edu/Documents/in/Community_Change?f_ri=192294"},{"id":373754,"name":"Ecosystem","url":"https://www.academia.edu/Documents/in/Ecosystem?f_ri=192294"},{"id":378051,"name":"Streams","url":"https://www.academia.edu/Documents/in/Streams?f_ri=192294"},{"id":401947,"name":"Sensitivity","url":"https://www.academia.edu/Documents/in/Sensitivity?f_ri=192294"},{"id":439435,"name":"Fresh water","url":"https://www.academia.edu/Documents/in/Fresh_water?f_ri=192294"},{"id":530872,"name":"Runoff","url":"https://www.academia.edu/Documents/in/Runoff?f_ri=192294"},{"id":576513,"name":"Leaf Litter","url":"https://www.academia.edu/Documents/in/Leaf_Litter?f_ri=192294"},{"id":622367,"name":"Water Quality","url":"https://www.academia.edu/Documents/in/Water_Quality-1?f_ri=192294"},{"id":724759,"name":"Aquatic hyphomycetes","url":"https://www.academia.edu/Documents/in/Aquatic_hyphomycetes?f_ri=192294"},{"id":882010,"name":"Environmental Toxicology and Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Toxicology_and_Chemistry?f_ri=192294"},{"id":1133132,"name":"Environmental","url":"https://www.academia.edu/Documents/in/Environmental?f_ri=192294"},{"id":1224526,"name":"Aromatic Hydrocarbon","url":"https://www.academia.edu/Documents/in/Aromatic_Hydrocarbon?f_ri=192294"},{"id":1253050,"name":"Pigeon","url":"https://www.academia.edu/Documents/in/Pigeon?f_ri=192294"},{"id":1630999,"name":"Toxicity Testing","url":"https://www.academia.edu/Documents/in/Toxicity_Testing?f_ri=192294"},{"id":2516014,"name":"temporal variation","url":"https://www.academia.edu/Documents/in/temporal_variation?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_6153468" data-work_id="6153468" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/6153468/Fluvial_sequences_as_evidence_for_landscape_and_climatic_evolution_in_the_Late_Cenozoic_A_synthesis_of_data_from_IGCP_518">Fluvial sequences as evidence for landscape and climatic evolution in the Late Cenozoic: A synthesis of data from IGCP 518</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest">a b s t r a c t a r t i c l e i n f o</div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/6153468" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a 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data-card-contents-for-user="9352154" type="text/json">{"id":9352154,"first_name":"Tuncer","last_name":"Demir","domain_name":"independent","page_name":"DemirTuncer","display_name":"Tuncer Demir","profile_url":"https://independent.academia.edu/DemirTuncer?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_6153468 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="6153468"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 6153468, container: ".js-paper-rank-work_6153468", }); });</script></li><li class="js-percentile-work_6153468 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6153468; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_6153468"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_6153468 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="6153468"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6153468; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6153468]").text(description); $(".js-view-count-work_6153468").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_6153468").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="6153468"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">11</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="400" rel="nofollow" href="https://www.academia.edu/Documents/in/Earth_Sciences">Earth Sciences</a>, <script data-card-contents-for-ri="400" type="text/json">{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13701" rel="nofollow" href="https://www.academia.edu/Documents/in/Climate">Climate</a>, <script data-card-contents-for-ri="13701" type="text/json">{"id":13701,"name":"Climate","url":"https://www.academia.edu/Documents/in/Climate?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="22831" rel="nofollow" href="https://www.academia.edu/Documents/in/Landscape">Landscape</a><script data-card-contents-for-ri="22831" type="text/json">{"id":22831,"name":"Landscape","url":"https://www.academia.edu/Documents/in/Landscape?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=6153468]'), work: {"id":6153468,"title":"Fluvial sequences as evidence for landscape and climatic evolution in the Late Cenozoic: A synthesis of data from IGCP 518","created_at":"2014-02-20T18:07:26.897-08:00","url":"https://www.academia.edu/6153468/Fluvial_sequences_as_evidence_for_landscape_and_climatic_evolution_in_the_Late_Cenozoic_A_synthesis_of_data_from_IGCP_518?f_ri=192294","dom_id":"work_6153468","summary":"a b s t r a c t a r t i c l e i n f o","downloadable_attachments":[{"id":48997305,"asset_id":6153468,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":9352154,"first_name":"Tuncer","last_name":"Demir","domain_name":"independent","page_name":"DemirTuncer","display_name":"Tuncer Demir","profile_url":"https://independent.academia.edu/DemirTuncer?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=192294","nofollow":true},{"id":13701,"name":"Climate","url":"https://www.academia.edu/Documents/in/Climate?f_ri=192294","nofollow":true},{"id":22831,"name":"Landscape","url":"https://www.academia.edu/Documents/in/Landscape?f_ri=192294","nofollow":true},{"id":30254,"name":"Pleistocene","url":"https://www.academia.edu/Documents/in/Pleistocene?f_ri=192294"},{"id":39549,"name":"Czech Republic","url":"https://www.academia.edu/Documents/in/Czech_Republic?f_ri=192294"},{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294"},{"id":116108,"name":"New Zealand","url":"https://www.academia.edu/Documents/in/New_Zealand?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":304590,"name":"Positive Feedback","url":"https://www.academia.edu/Documents/in/Positive_Feedback?f_ri=192294"},{"id":814934,"name":"Plate tectonic","url":"https://www.academia.edu/Documents/in/Plate_tectonic?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_25983758" data-work_id="25983758" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/25983758/Evidence_for_habitual_use_of_fire_at_the_end_of_the_Lower_Paleolithic_Site_formation_processes_at_Qesem_Cave_Israel">Evidence for habitual use of fire at the end of the Lower Paleolithic: Site-formation processes at Qesem Cave, Israel</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The Amudian (late Lower Paleolithic) site of Qesem Cave in Israel represents one of the earliest examples of habitual use of fire by middle Pleistocene hominids. The Paleolithic layers in this cave were studied using a suite of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_25983758" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The Amudian (late Lower Paleolithic) site of Qesem Cave in Israel represents one of the earliest examples of habitual use of fire by middle Pleistocene hominids. The Paleolithic layers in this cave were studied using a suite of mineralogical and chemical techniques and a contextual sedimentological analysis (i.e., micromorphology). We show that the lower ca. 3 m of the stratigraphic sequence are dominated by clastic sediments deposited within a closed karstic environment. The deposits were formed by small-scale, concentrated mud slurries (infiltrated terra rosa soil) and debris flows. A few intervening lenses of mostly in situ burnt remains were also identified. The main part of the upper ca. 4.5 m consists of anthropogenic sediment with only moderate amounts of clastic geogenic inputs. The deposits are strongly cemented with calcite that precipitated from dripping water. The anthropogenic component is characterized by completely combusted, mostly reworked wood ash with only rare remnants of charred material. Micromorphological and isotopic evidence indicates recrystallization of the wood ash. Large quantities of burnt bone, defined by a combination of microscopic and macroscopic criteria, and moderately heated soil lumps are closely associated with the woodash remains. The frequent presence of microscopic calcified rootlets indicates that the upper sequence formed in the vicinity of the former cave entrance. Burnt remains in the sediments are associated with systematic blade production and faunas that are dominated by the remains of fallow deer. Use-wear damage on blades and blade tools in conjunction with numerous cut marks on bones indicate an emphasis on butchering and prey-defleshing activities in the vicinity of fireplaces.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/25983758" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="b8db067ef7c63e268f84489e8a23d29a" rel="nofollow" data-download="{"attachment_id":46334238,"asset_id":25983758,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/46334238/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="49798248" href="https://haifa.academia.edu/RuthShahackGross">Ruth Shahack-Gross</a><script data-card-contents-for-user="49798248" type="text/json">{"id":49798248,"first_name":"Ruth","last_name":"Shahack-Gross","domain_name":"haifa","page_name":"RuthShahackGross","display_name":"Ruth Shahack-Gross","profile_url":"https://haifa.academia.edu/RuthShahackGross?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_25983758 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="25983758"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 25983758, container: ".js-paper-rank-work_25983758", }); 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The Paleolithic layers in this cave were studied using a suite of mineralogical and chemical techniques and a contextual sedimentological analysis (i.e., micromorphology). We show that the lower ca. 3 m of the stratigraphic sequence are dominated by clastic sediments deposited within a closed karstic environment. The deposits were formed by small-scale, concentrated mud slurries (infiltrated terra rosa soil) and debris flows. A few intervening lenses of mostly in situ burnt remains were also identified. The main part of the upper ca. 4.5 m consists of anthropogenic sediment with only moderate amounts of clastic geogenic inputs. The deposits are strongly cemented with calcite that precipitated from dripping water. The anthropogenic component is characterized by completely combusted, mostly reworked wood ash with only rare remnants of charred material. Micromorphological and isotopic evidence indicates recrystallization of the wood ash. Large quantities of burnt bone, defined by a combination of microscopic and macroscopic criteria, and moderately heated soil lumps are closely associated with the woodash remains. The frequent presence of microscopic calcified rootlets indicates that the upper sequence formed in the vicinity of the former cave entrance. Burnt remains in the sediments are associated with systematic blade production and faunas that are dominated by the remains of fallow deer. Use-wear damage on blades and blade tools in conjunction with numerous cut marks on bones indicate an emphasis on butchering and prey-defleshing activities in the vicinity of fireplaces.","downloadable_attachments":[{"id":46334238,"asset_id":25983758,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":49798248,"first_name":"Ruth","last_name":"Shahack-Gross","domain_name":"haifa","page_name":"RuthShahackGross","display_name":"Ruth Shahack-Gross","profile_url":"https://haifa.academia.edu/RuthShahackGross?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":130,"name":"Ancient History","url":"https://www.academia.edu/Documents/in/Ancient_History?f_ri=192294","nofollow":true},{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=192294","nofollow":true},{"id":392,"name":"Archaeology","url":"https://www.academia.edu/Documents/in/Archaeology?f_ri=192294","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=192294","nofollow":true},{"id":767,"name":"Anthropology","url":"https://www.academia.edu/Documents/in/Anthropology?f_ri=192294"},{"id":772,"name":"Human Evolution","url":"https://www.academia.edu/Documents/in/Human_Evolution?f_ri=192294"},{"id":1703,"name":"Stable Isotope Analysis","url":"https://www.academia.edu/Documents/in/Stable_Isotope_Analysis?f_ri=192294"},{"id":1706,"name":"Geoarchaeology","url":"https://www.academia.edu/Documents/in/Geoarchaeology?f_ri=192294"},{"id":7325,"name":"Archaeological Soil Micromorphology","url":"https://www.academia.edu/Documents/in/Archaeological_Soil_Micromorphology?f_ri=192294"},{"id":10867,"name":"Fire","url":"https://www.academia.edu/Documents/in/Fire?f_ri=192294"},{"id":13940,"name":"Fire Behaviour","url":"https://www.academia.edu/Documents/in/Fire_Behaviour?f_ri=192294"},{"id":34642,"name":"Israel","url":"https://www.academia.edu/Documents/in/Israel?f_ri=192294"},{"id":41720,"name":"Human","url":"https://www.academia.edu/Documents/in/Human?f_ri=192294"},{"id":48310,"name":"Cave","url":"https://www.academia.edu/Documents/in/Cave?f_ri=192294"},{"id":56754,"name":"Terroir","url":"https://www.academia.edu/Documents/in/Terroir?f_ri=192294"},{"id":64938,"name":"Fallow deer","url":"https://www.academia.edu/Documents/in/Fallow_deer?f_ri=192294"},{"id":78117,"name":"Carbon Isotopes","url":"https://www.academia.edu/Documents/in/Carbon_Isotopes?f_ri=192294"},{"id":112709,"name":"Debris Flow","url":"https://www.academia.edu/Documents/in/Debris_Flow?f_ri=192294"},{"id":121939,"name":"Technique","url":"https://www.academia.edu/Documents/in/Technique?f_ri=192294"},{"id":168891,"name":"Chemical Analysis","url":"https://www.academia.edu/Documents/in/Chemical_Analysis?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":202702,"name":"Form","url":"https://www.academia.edu/Documents/in/Form?f_ri=192294"},{"id":230701,"name":"Oxygen Isotopes","url":"https://www.academia.edu/Documents/in/Oxygen_Isotopes?f_ri=192294"},{"id":235690,"name":"Fires","url":"https://www.academia.edu/Documents/in/Fires?f_ri=192294"},{"id":1208706,"name":"Environment","url":"https://www.academia.edu/Documents/in/Environment?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1451606,"name":"Wood Ash","url":"https://www.academia.edu/Documents/in/Wood_Ash?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14646416 coauthored" data-work_id="14646416" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14646416/Application_of_a_Remote_Sensing_Technique_to_the_Study_of_Coastal_Dunes">Application of a Remote Sensing Technique to the Study of Coastal Dunes</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">DELGADO-FERNANDEZ, I.; DAVIDSON-ARNOTT, R., and OLLERHEAD, J., 2009. Application of a remote sensing technique to the study of coastal dunes. This paper reports on a remote sensing station specifically designed to investigate eolian... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_14646416" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">DELGADO-FERNANDEZ, I.; DAVIDSON-ARNOTT, R., and OLLERHEAD, J., 2009. Application of a remote sensing technique to the study of coastal dunes. This paper reports on a remote sensing station specifically designed to investigate eolian processes at a beach-dune system. The monitoring station is located at Greenwich Dunes, Prince Edward Island National Park, Prince Edward Island (Canada), and it is the second, improved generation of a previous system using continuous video and photographs. The setup consists of three digital single-lens reflex cameras, a two-dimensional sonic anemometer, two safires, erosion-deposition pins, and an array of batteries and solar panels. The cameras run on a timer that takes pictures every hour. The images are rectified and analyzed using a combination of ArcMap 9.2 and PCI Geomatica software, which permits the generation of moisture maps, vegetation, ice and snow cover, shoreline position, and erosion-deposition processes. The two-dimensional sonic provides continuous wind speed and direction, and the saltation probes record the intensity of transport events. The result is a large geodatabase of a time series of factors affecting eolian processes at the beach at a variety of temporal and spatial scales. This geodatabase can be queried, and it is a valuable tool for studying the frequency and magnitude of events delivering sediment from the beach to the dune and thus for improving our knowledge of sediment transport at coastal areas. Although the remote sensing station was initially conceived as a tool to measure subaerial processes, a full year of measurements shows large potential for the system to provide information on processes at the nearshore environment and ice dynamics.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14646416" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6fe47688153da6f2728e2fc7b08517b8" rel="nofollow" data-download="{"attachment_id":44009613,"asset_id":14646416,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44009613/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33597452" href="https://mta-ca.academia.edu/JeffOllerhead">Jeff Ollerhead</a><script data-card-contents-for-user="33597452" type="text/json">{"id":33597452,"first_name":"Jeff","last_name":"Ollerhead","domain_name":"mta-ca","page_name":"JeffOllerhead","display_name":"Jeff Ollerhead","profile_url":"https://mta-ca.academia.edu/JeffOllerhead?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-14646416">+1</span><div class="hidden js-additional-users-14646416"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://uoguelph.academia.edu/RobinDavidsonarnott">Robin Davidson-arnott</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-14646416'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-14646416').html(); 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DAVIDSON-ARNOTT, R., and OLLERHEAD, J., 2009. Application of a remote sensing technique to the study of coastal dunes. This paper reports on a remote sensing station specifically designed to investigate eolian processes at a beach-dune system. The monitoring station is located at Greenwich Dunes, Prince Edward Island National Park, Prince Edward Island (Canada), and it is the second, improved generation of a previous system using continuous video and photographs. The setup consists of three digital single-lens reflex cameras, a two-dimensional sonic anemometer, two safires, erosion-deposition pins, and an array of batteries and solar panels. The cameras run on a timer that takes pictures every hour. The images are rectified and analyzed using a combination of ArcMap 9.2 and PCI Geomatica software, which permits the generation of moisture maps, vegetation, ice and snow cover, shoreline position, and erosion-deposition processes. The two-dimensional sonic provides continuous wind speed and direction, and the saltation probes record the intensity of transport events. The result is a large geodatabase of a time series of factors affecting eolian processes at the beach at a variety of temporal and spatial scales. This geodatabase can be queried, and it is a valuable tool for studying the frequency and magnitude of events delivering sediment from the beach to the dune and thus for improving our knowledge of sediment transport at coastal areas. Although the remote sensing station was initially conceived as a tool to measure subaerial processes, a full year of measurements shows large potential for the system to provide information on processes at the nearshore environment and ice dynamics.","downloadable_attachments":[{"id":44009613,"asset_id":14646416,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33597452,"first_name":"Jeff","last_name":"Ollerhead","domain_name":"mta-ca","page_name":"JeffOllerhead","display_name":"Jeff Ollerhead","profile_url":"https://mta-ca.academia.edu/JeffOllerhead?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":33670428,"first_name":"Robin","last_name":"Davidson-arnott","domain_name":"uoguelph","page_name":"RobinDavidsonarnott","display_name":"Robin Davidson-arnott","profile_url":"https://uoguelph.academia.edu/RobinDavidsonarnott?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":48,"name":"Engineering","url":"https://www.academia.edu/Documents/in/Engineering?f_ri=192294","nofollow":true},{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences?f_ri=192294","nofollow":true},{"id":1252,"name":"Remote Sensing","url":"https://www.academia.edu/Documents/in/Remote_Sensing?f_ri=192294","nofollow":true},{"id":2499,"name":"Digital Photography","url":"https://www.academia.edu/Documents/in/Digital_Photography?f_ri=192294","nofollow":true},{"id":7827,"name":"Coastal Dunes","url":"https://www.academia.edu/Documents/in/Coastal_Dunes?f_ri=192294"},{"id":9351,"name":"Image Analysis","url":"https://www.academia.edu/Documents/in/Image_Analysis?f_ri=192294"},{"id":73598,"name":"Coastal","url":"https://www.academia.edu/Documents/in/Coastal?f_ri=192294"},{"id":84446,"name":"Erosion","url":"https://www.academia.edu/Documents/in/Erosion?f_ri=192294"},{"id":85567,"name":"Geodatabase","url":"https://www.academia.edu/Documents/in/Geodatabase?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":197149,"name":"SNOW","url":"https://www.academia.edu/Documents/in/SNOW?f_ri=192294"},{"id":755542,"name":"Wind Speed","url":"https://www.academia.edu/Documents/in/Wind_Speed?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_59751107" data-work_id="59751107" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/59751107/Mercury_and_methylmercury_in_the_Gulf_of_Trieste_northern_Adriatic_Sea_">Mercury and methylmercury in the Gulf of Trieste (northern Adriatic Sea)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The distribution, sources and fate of mercury (Hg) in the water column of the Gulf of Trieste (northern Adriatic Sea), affected by the Hg polluted river SocayIsonzo for centuries draining the cinnabar-rich deposits of the Idrija mining... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_59751107" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The distribution, sources and fate of mercury (Hg) in the water column of the Gulf of Trieste (northern Adriatic Sea), affected by the Hg polluted river SocayIsonzo for centuries draining the cinnabar-rich deposits of the Idrija mining district (NW Slovenia), were studied in terms of total and dissolved Hg, reactive Hg, total and dissolved methylmercury (MeHg), mesozooplankton Hg and MeHg, and sedimentation rates of particulate Hg. Higher total Hg concentrations in the surface layer were restricted to the area of the Gulf in front of the river plume expanding in a westerly direction. Higher concentrations in bottom water layers were the consequence of sediment resuspension. Dissolved Hg exhibited higher concentrations in the surface layer in the area in front of the river plume. Higher bottom concentrations of dissolved Hg observed at some stations were probably due to remobilization from sediments, including resuspension and benthic recycling. The relationship between dissolved Hg in the surface layer and salinity showed nonconservative mixing in June 1995 during higher riverine inflow and nearly conservative mixing in September 1995 during lower riverine inflow. Both mixing curves confirm the river SocayIsonzo to be the most important source of total and dissolved Hg, which are significantly correlated, in the Gulf. Reactive Hg is significantly correlated with dissolved Hg, indicating that the majority of dissolved Hg is reactive and potentially involved in biogeochemical transformations. The higher total MeHg in the bottom layer is the result of remobilization of MeHg from sediments including benthic fluxes. Strong seasonal variation of sedimentation rates of particulate Hg was found during a 2-year study in the central part of the Gulf. These variations followed those of total sedimented matter, indicating that sedimented Hg is mostly associated with inorganic matter. About a 2.5-fold higher fluxes of particulate Hg were observed at the depth of 20 m relative to 10 m which is attributed to bottom sediment resuspension. Temporal variability of mesozooplankton Hg and MeHg is the consequence of biomass and species variations, and grazing behaviour. From the preliminary Hg mass balance it appears that the Gulf is an efficient trap for total Hg and a net source of MeHg.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/59751107" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="1ba26915e98547f920bc403a4071f54a" rel="nofollow" data-download="{"attachment_id":73512360,"asset_id":59751107,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/73512360/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31991485" href="https://independent.academia.edu/StefanoCovelli">Stefano Covelli</a><script data-card-contents-for-user="31991485" type="text/json">{"id":31991485,"first_name":"Stefano","last_name":"Covelli","domain_name":"independent","page_name":"StefanoCovelli","display_name":"Stefano Covelli","profile_url":"https://independent.academia.edu/StefanoCovelli?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_59751107 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="59751107"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 59751107, container: ".js-paper-rank-work_59751107", }); 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$(".js-view-count[data-work-id=59751107]").text(description); $(".js-view-count-work_59751107").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_59751107").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="59751107"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">19</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="1361" rel="nofollow" href="https://www.academia.edu/Documents/in/Biogeochemistry">Biogeochemistry</a>, <script data-card-contents-for-ri="1361" type="text/json">{"id":1361,"name":"Biogeochemistry","url":"https://www.academia.edu/Documents/in/Biogeochemistry?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="5411" rel="nofollow" href="https://www.academia.edu/Documents/in/Biomass">Biomass</a>, <script data-card-contents-for-ri="5411" type="text/json">{"id":5411,"name":"Biomass","url":"https://www.academia.edu/Documents/in/Biomass?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="11801" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Monitoring">Environmental Monitoring</a>, <script data-card-contents-for-ri="11801" type="text/json">{"id":11801,"name":"Environmental Monitoring","url":"https://www.academia.edu/Documents/in/Environmental_Monitoring?f_ri=192294","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28235" rel="nofollow" href="https://www.academia.edu/Documents/in/Multidisciplinary">Multidisciplinary</a><script data-card-contents-for-ri="28235" type="text/json">{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=59751107]'), work: {"id":59751107,"title":"Mercury and methylmercury in the Gulf of Trieste (northern Adriatic Sea)","created_at":"2021-10-24T00:34:30.215-07:00","url":"https://www.academia.edu/59751107/Mercury_and_methylmercury_in_the_Gulf_of_Trieste_northern_Adriatic_Sea_?f_ri=192294","dom_id":"work_59751107","summary":"The distribution, sources and fate of mercury (Hg) in the water column of the Gulf of Trieste (northern Adriatic Sea), affected by the Hg polluted river SocayIsonzo for centuries draining the cinnabar-rich deposits of the Idrija mining district (NW Slovenia), were studied in terms of total and dissolved Hg, reactive Hg, total and dissolved methylmercury (MeHg), mesozooplankton Hg and MeHg, and sedimentation rates of particulate Hg. Higher total Hg concentrations in the surface layer were restricted to the area of the Gulf in front of the river plume expanding in a westerly direction. Higher concentrations in bottom water layers were the consequence of sediment resuspension. Dissolved Hg exhibited higher concentrations in the surface layer in the area in front of the river plume. Higher bottom concentrations of dissolved Hg observed at some stations were probably due to remobilization from sediments, including resuspension and benthic recycling. The relationship between dissolved Hg in the surface layer and salinity showed nonconservative mixing in June 1995 during higher riverine inflow and nearly conservative mixing in September 1995 during lower riverine inflow. Both mixing curves confirm the river SocayIsonzo to be the most important source of total and dissolved Hg, which are significantly correlated, in the Gulf. Reactive Hg is significantly correlated with dissolved Hg, indicating that the majority of dissolved Hg is reactive and potentially involved in biogeochemical transformations. The higher total MeHg in the bottom layer is the result of remobilization of MeHg from sediments including benthic fluxes. Strong seasonal variation of sedimentation rates of particulate Hg was found during a 2-year study in the central part of the Gulf. These variations followed those of total sedimented matter, indicating that sedimented Hg is mostly associated with inorganic matter. About a 2.5-fold higher fluxes of particulate Hg were observed at the depth of 20 m relative to 10 m which is attributed to bottom sediment resuspension. Temporal variability of mesozooplankton Hg and MeHg is the consequence of biomass and species variations, and grazing behaviour. From the preliminary Hg mass balance it appears that the Gulf is an efficient trap for total Hg and a net source of MeHg.","downloadable_attachments":[{"id":73512360,"asset_id":59751107,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31991485,"first_name":"Stefano","last_name":"Covelli","domain_name":"independent","page_name":"StefanoCovelli","display_name":"Stefano Covelli","profile_url":"https://independent.academia.edu/StefanoCovelli?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":1361,"name":"Biogeochemistry","url":"https://www.academia.edu/Documents/in/Biogeochemistry?f_ri=192294","nofollow":true},{"id":5411,"name":"Biomass","url":"https://www.academia.edu/Documents/in/Biomass?f_ri=192294","nofollow":true},{"id":11801,"name":"Environmental Monitoring","url":"https://www.academia.edu/Documents/in/Environmental_Monitoring?f_ri=192294","nofollow":true},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary?f_ri=192294","nofollow":true},{"id":45213,"name":"Italy","url":"https://www.academia.edu/Documents/in/Italy?f_ri=192294"},{"id":81141,"name":"Mining Industry","url":"https://www.academia.edu/Documents/in/Mining_Industry?f_ri=192294"},{"id":89990,"name":"Estuaries","url":"https://www.academia.edu/Documents/in/Estuaries?f_ri=192294"},{"id":90017,"name":"Mercury","url":"https://www.academia.edu/Documents/in/Mercury?f_ri=192294"},{"id":184467,"name":"Seawater","url":"https://www.academia.edu/Documents/in/Seawater?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"},{"id":222432,"name":"Seasonal variation","url":"https://www.academia.edu/Documents/in/Seasonal_variation?f_ri=192294"},{"id":289850,"name":"River Plume","url":"https://www.academia.edu/Documents/in/River_Plume?f_ri=192294"},{"id":318566,"name":"Sedimentation","url":"https://www.academia.edu/Documents/in/Sedimentation?f_ri=192294"},{"id":477461,"name":"Coastal Zone","url":"https://www.academia.edu/Documents/in/Coastal_Zone?f_ri=192294"},{"id":958194,"name":"Sedimentation Rate","url":"https://www.academia.edu/Documents/in/Sedimentation_Rate?f_ri=192294"},{"id":1013028,"name":"Food Chain","url":"https://www.academia.edu/Documents/in/Food_Chain?f_ri=192294"},{"id":1136192,"name":"Biological Availability","url":"https://www.academia.edu/Documents/in/Biological_Availability?f_ri=192294"},{"id":1256666,"name":"Geologic Sediments","url":"https://www.academia.edu/Documents/in/Geologic_Sediments?f_ri=192294"},{"id":1707373,"name":"Mass Balance","url":"https://www.academia.edu/Documents/in/Mass_Balance?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_23576771 coauthored" data-work_id="23576771" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/23576771/Assessment_of_heavy_metals_bioavailability_and_toxicity_toward_Vibrio_fischeri_in_sediment_of_the_Huelva_estuary">Assessment of heavy metals bioavailability and toxicity toward Vibrio fischeri in sediment of the Huelva estuary</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Relationship between toxicity and bioavailable metals in sediments from the Huelva estuary and its littoral of influence was analyzed. Toxicity was assessed with Microtox ® bioassay using a marine lumi-nescent bacterium: Vibrio fischeri.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_23576771" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Relationship between toxicity and bioavailable metals in sediments from the Huelva estuary and its littoral of influence was analyzed. Toxicity was assessed with Microtox ® bioassay using a marine lumi-nescent bacterium: Vibrio fischeri. Bioavailable metals were considered as both, acid extractable fraction of BCR procedure and the sum of exchangeable and bound to carbonates fractions of Tessier sequential extraction. A bioavailable metals index was calculated to integrate results in a single figure. Toxicity and bioavailable metals showed a similar pattern. Higher levels were found in the estuary than in the littoral (140 TU/g). In Huelva estuary, highest levels were found in the Tinto estuary (5725 TU/g), followed by the Odiel estuary (5100 TU/g) and the Padre Santo Canal (2500 TU/g). Results in this area were well over than those in nearby estuaries. Furthermore, they are similar to or even higher than those in other polluted sediments around the world. Bioavailable metal index showed a stronger correlation with acid extractable fraction of BCR (R 2 ¼ 0.704) than that for the sum of exchangeable and bound to carbonates fractions of Tessier (R 2 ¼ 0.661). These results suggest that bioavailable metals are an important source of sediment toxicity in the Huelva estuary and its littoral of influence, an area with one of the highest mortality risks of Spain.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/23576771" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6322dcccd08db77f890d4ed0be6f3432" rel="nofollow" data-download="{"attachment_id":44000018,"asset_id":23576771,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44000018/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="35182037" href="https://utpl.academia.edu/DanielRosado">Daniel Rosado</a><script data-card-contents-for-user="35182037" type="text/json">{"id":35182037,"first_name":"Daniel","last_name":"Rosado","domain_name":"utpl","page_name":"DanielRosado","display_name":"Daniel Rosado","profile_url":"https://utpl.academia.edu/DanielRosado?f_ri=192294","photo":"https://0.academia-photos.com/35182037/11413832/20788482/s65_daniel.rosado.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-23576771">+2</span><div class="hidden js-additional-users-23576771"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/Jos%C3%A9Usero">José Usero</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/MorilloJos%C3%A9">José Morillo</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-23576771'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-23576771').html(); 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Toxicity was assessed with Microtox ® bioassay using a marine lumi-nescent bacterium: Vibrio fischeri. Bioavailable metals were considered as both, acid extractable fraction of BCR procedure and the sum of exchangeable and bound to carbonates fractions of Tessier sequential extraction. A bioavailable metals index was calculated to integrate results in a single figure. Toxicity and bioavailable metals showed a similar pattern. Higher levels were found in the estuary than in the littoral (140 TU/g). In Huelva estuary, highest levels were found in the Tinto estuary (5725 TU/g), followed by the Odiel estuary (5100 TU/g) and the Padre Santo Canal (2500 TU/g). Results in this area were well over than those in nearby estuaries. Furthermore, they are similar to or even higher than those in other polluted sediments around the world. Bioavailable metal index showed a stronger correlation with acid extractable fraction of BCR (R 2 ¼ 0.704) than that for the sum of exchangeable and bound to carbonates fractions of Tessier (R 2 ¼ 0.661). These results suggest that bioavailable metals are an important source of sediment toxicity in the Huelva estuary and its littoral of influence, an area with one of the highest mortality risks of Spain.","downloadable_attachments":[{"id":44000018,"asset_id":23576771,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":35182037,"first_name":"Daniel","last_name":"Rosado","domain_name":"utpl","page_name":"DanielRosado","display_name":"Daniel Rosado","profile_url":"https://utpl.academia.edu/DanielRosado?f_ri=192294","photo":"https://0.academia-photos.com/35182037/11413832/20788482/s65_daniel.rosado.jpg"},{"id":35270601,"first_name":"José","last_name":"Usero","domain_name":"independent","page_name":"JoséUsero","display_name":"José Usero","profile_url":"https://independent.academia.edu/Jos%C3%A9Usero?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":35266807,"first_name":"José","last_name":"Morillo","domain_name":"independent","page_name":"MorilloJosé","display_name":"José Morillo","profile_url":"https://independent.academia.edu/MorilloJos%C3%A9?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=192294","nofollow":true},{"id":1275,"name":"Coastal Management","url":"https://www.academia.edu/Documents/in/Coastal_Management?f_ri=192294","nofollow":true},{"id":1286,"name":"Coastal Engineering","url":"https://www.academia.edu/Documents/in/Coastal_Engineering?f_ri=192294","nofollow":true},{"id":21724,"name":"Water Pollution","url":"https://www.academia.edu/Documents/in/Water_Pollution?f_ri=192294","nofollow":true},{"id":40021,"name":"Coastal Zone Management","url":"https://www.academia.edu/Documents/in/Coastal_Zone_Management?f_ri=192294"},{"id":40647,"name":"Estuarine Ecology","url":"https://www.academia.edu/Documents/in/Estuarine_Ecology?f_ri=192294"},{"id":57697,"name":"Heavy metals","url":"https://www.academia.edu/Documents/in/Heavy_metals?f_ri=192294"},{"id":67405,"name":"Toxicity","url":"https://www.academia.edu/Documents/in/Toxicity?f_ri=192294"},{"id":82729,"name":"Coastal and Estuarine Sediment Transport","url":"https://www.academia.edu/Documents/in/Coastal_and_Estuarine_Sediment_Transport?f_ri=192294"},{"id":87756,"name":"Integrated Coastal Zone Management","url":"https://www.academia.edu/Documents/in/Integrated_Coastal_Zone_Management?f_ri=192294"},{"id":116426,"name":"Huelva","url":"https://www.academia.edu/Documents/in/Huelva?f_ri=192294"},{"id":192294,"name":"Sediment","url":"https://www.academia.edu/Documents/in/Sediment?f_ri=192294"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_12814462 coauthored" data-work_id="12814462" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/12814462/Benthic_foraminifera_as_bio_indicators_of_trace_element_pollution_in_the_heavily_contaminated_Santa_Gilla_lagoon_Cagliari_Italy_">Benthic foraminifera as bio-indicators of trace element pollution in the heavily contaminated Santa Gilla lagoon (Cagliari, Italy)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">In order to assess the response of benthic foraminifera to trace element pollution, a study of benthic foraminiferal assemblages was carried out into sediment samples collected from the Santa Gilla lagoon (Sardinia, Italy). The lagoon has... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_12814462" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">In order to assess the response of benthic foraminifera to trace element pollution, a study of benthic foraminiferal assemblages was carried out into sediment samples collected from the Santa Gilla lagoon (Sardinia, Italy). The lagoon has been contaminated by industrial waste, mainly trace elements, as well as by agricultural and domestic effluent. The analysis of surficial sediment shows enrichment in trace elements, including Cr, Cu, Hg, Ni, Pb and Zn. Biotic and abiotic data, analyzed with multivariate techniques of statistical analysis, reveal a distinct separation of both the highly polluted and less polluted sampling sites. The innermost part of the lagoon, comprising the industrial complex at Macchiareddu, is exposed to a high load of trace elements which are probably enhanced by their accumulation in the finer sediment fraction. This area reveals lower diversity and higher percentages of abnormalities when compared to the outermost part of the lagoon.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/12814462" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="7893f5f0b52176df6f672c4a7b164e3f" rel="nofollow" data-download="{"attachment_id":45918367,"asset_id":12814462,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45918367/download_file?st=MTc0MDUzMzQ2Myw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31901811" href="https://unica-it.academia.edu/AntoniettaCherchi">Antonietta Cherchi</a><script data-card-contents-for-user="31901811" type="text/json">{"id":31901811,"first_name":"Antonietta","last_name":"Cherchi","domain_name":"unica-it","page_name":"AntoniettaCherchi","display_name":"Antonietta Cherchi","profile_url":"https://unica-it.academia.edu/AntoniettaCherchi?f_ri=192294","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-12814462">+2</span><div class="hidden js-additional-users-12814462"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://unica.academia.edu/CarlaBuosi">Carla Buosi</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://cactus-co.academia.edu/StefaniaDaPelo">Stefania Da Pelo</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-12814462'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-12814462').html(); 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The lagoon has been contaminated by industrial waste, mainly trace elements, as well as by agricultural and domestic effluent. The analysis of surficial sediment shows enrichment in trace elements, including Cr, Cu, Hg, Ni, Pb and Zn. Biotic and abiotic data, analyzed with multivariate techniques of statistical analysis, reveal a distinct separation of both the highly polluted and less polluted sampling sites. The innermost part of the lagoon, comprising the industrial complex at Macchiareddu, is exposed to a high load of trace elements which are probably enhanced by their accumulation in the finer sediment fraction. This area reveals lower diversity and higher percentages of abnormalities when compared to the outermost part of the lagoon.","downloadable_attachments":[{"id":45918367,"asset_id":12814462,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31901811,"first_name":"Antonietta","last_name":"Cherchi","domain_name":"unica-it","page_name":"AntoniettaCherchi","display_name":"Antonietta Cherchi","profile_url":"https://unica-it.academia.edu/AntoniettaCherchi?f_ri=192294","photo":"/images/s65_no_pic.png"},{"id":2706756,"first_name":"Carla","last_name":"Buosi","domain_name":"unica","page_name":"CarlaBuosi","display_name":"Carla Buosi","profile_url":"https://unica.academia.edu/CarlaBuosi?f_ri=192294","photo":"https://0.academia-photos.com/2706756/869433/1084974/s65_carla.buosi.jpg"},{"id":31977070,"first_name":"Stefania Da","last_name":"Pelo","domain_name":"cactus-co","page_name":"StefaniaDaPelo","display_name":"Stefania Da Pelo","profile_url":"https://cactus-co.academia.edu/StefaniaDaPelo?f_ri=192294","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":4035,"name":"Marine Ecology","url":"https://www.academia.edu/Documents/in/Marine_Ecology?f_ri=192294","nofollow":true},{"id":5069,"name":"Principal Component Analysis","url":"https://www.academia.edu/Documents/in/Principal_Component_Analysis?f_ri=192294","nofollow":true},{"id":5187,"name":"Statistical Analysis","url":"https://www.academia.edu/Documents/in/Statistical_Analysis?f_ri=192294","nofollow":true},{"id":7805,"name":"Marine Conservation","url":"https://www.academia.edu/Documents/in/Marine_Conservation?f_ri=192294","nofollow":true},{"id":9513,"name":"MARINE POLLUTION","url":"https://www.academia.edu/Documents/in/MARINE_POLLUTION?f_ri=192294"},{"id":11801,"name":"Environmental 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