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data-dom-id="Pill-react-component-184e26de-3316-44dd-9a31-ad65aa5f05cd"></div> <div id="Pill-react-component-184e26de-3316-44dd-9a31-ad65aa5f05cd"></div> </a></div></div></div></div><div class="right-panel-container"><div class="user-content-wrapper"><div class="uploads-container" id="social-redesign-work-container"><div class="upload-header"><h2 class="ds2-5-heading-sans-serif-xs">Uploads</h2></div><div class="nav-container backbone-profile-documents-nav hidden-xs"><ul class="nav-tablist" role="tablist"><li class="nav-chip active" role="presentation"><a data-section-name="" data-toggle="tab" href="#all" role="tab">all</a></li><li class="nav-chip" role="presentation"><a class="js-profile-docs-nav-section u-textTruncate" data-click-track="profile-works-tab" data-section-name="Scientific-and-Technical-Reports" data-toggle="tab" href="#scientificandtechnicalreports" role="tab" title="Scientific and Technical Reports"><span>1</span> <span class="ds2-5-body-sm-bold">Scientific and Technical Reports</span></a></li><li class="nav-chip" role="presentation"><a class="js-profile-docs-nav-section u-textTruncate" data-click-track="profile-works-tab" data-section-name="Papers" data-toggle="tab" href="#papers" role="tab" title="Papers"><span>13</span> <span class="ds2-5-body-sm-bold">Papers</span></a></li></ul></div><div class="divider ds-divider-16" style="margin: 0px;"></div><div class="documents-container backbone-social-profile-documents" style="width: 100%;"><div class="u-taCenter"></div><div class="profile--tab_content_container js-tab-pane tab-pane active" id="all"><div class="profile--tab_heading_container js-section-heading" data-section="Scientific and Technical Reports" id="Scientific and Technical Reports"><h3 class="profile--tab_heading_container">Scientific and Technical Reports by jon coosen</h3></div><div class="js-work-strip profile--work_container" data-work-id="9992193"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/9992193/Good_Practices_and_Policy_Recommendations_on_Theme_1_Integrated_Delta_Approach_"><img alt="Research paper thumbnail of Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)" class="work-thumbnail" src="https://attachments.academia-assets.com/36132788/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/9992193/Good_Practices_and_Policy_Recommendations_on_Theme_1_Integrated_Delta_Approach_">Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://cardiff.academia.edu/GwilymOwen">Gwilym Owen</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://cardiff.academia.edu/RhodaBallinger">Rhoda Ballinger</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/joncoosen">jon coosen</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://fcsh-unl.academia.edu/andrefernandes">André Fernandes</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The delta and estuary regions in Europe encounter similar characteristics, problems and opportuni...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The delta and estuary regions in Europe encounter similar characteristics, problems and opportunities, as they have to deal with a very dynamic development of urbanisation, economic activities, infrastructure and natural and technological risks. <br />The high spatial and economic demands are threatening the sustainable development and maintenance of the special character of Delta regions. These areas are often characterized by both very important ecological values (river basin and coastal zone), and concentrations of urban and economic activities. <br />Regional policy measures are often inefficient and ineffective as an integrated and sustainable approach is often absent. That is why some Delta areas throughout Europe decided to start a <br />cooperation to exchange experiences and improve their regional policy instruments, methods <br />and approaches. <br />Taking into account this problematic issue, this report is focused on the identification of good <br />practices for a “Better Integrated Delta Approach” (Theme 1), based on the experience of the Tagus Estuary, Elbe Estuary, Severn Estuary and Rhine-Scheldt Meuse Delta. <br />For each estuary or delta, a brief description of their situation is presented (main physical and human features, institutional framework, identification and brief description of the estuary <br />management plan, identification of protected and particularly sensitive areas and identification of the main problematic issues). Good practices concerning estuary management are also analysed. <br />Supported by the experience of these estuaries and deltas, the report includes a reflection about the joint problems and presents lessons, conclusions and recommendations for a “Better Integrated Delta Approach”.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b0a6722b34cdb75d56ad69264c7373dd" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":36132788,"asset_id":9992193,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/36132788/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="9992193"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="9992193"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 9992193; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=9992193]").text(description); $(".js-view-count[data-work-id=9992193]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 9992193; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='9992193']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "b0a6722b34cdb75d56ad69264c7373dd" } } $('.js-work-strip[data-work-id=9992193]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":9992193,"title":"Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)","translated_title":"","metadata":{"abstract":"The delta and estuary regions in Europe encounter similar characteristics, problems and opportunities, as they have to deal with a very dynamic development of urbanisation, economic activities, infrastructure and natural and technological risks.\r\nThe high spatial and economic demands are threatening the sustainable development and maintenance of the special character of Delta regions. These areas are often characterized by both very important ecological values (river basin and coastal zone), and concentrations of urban and economic activities.\r\nRegional policy measures are often inefficient and ineffective as an integrated and sustainable approach is often absent. That is why some Delta areas throughout Europe decided to start a\r\ncooperation to exchange experiences and improve their regional policy instruments, methods\r\nand approaches.\r\nTaking into account this problematic issue, this report is focused on the identification of good\r\npractices for a “Better Integrated Delta Approach” (Theme 1), based on the experience of the Tagus Estuary, Elbe Estuary, Severn Estuary and Rhine-Scheldt Meuse Delta.\r\nFor each estuary or delta, a brief description of their situation is presented (main physical and human features, institutional framework, identification and brief description of the estuary\r\nmanagement plan, identification of protected and particularly sensitive areas and identification of the main problematic issues). Good practices concerning estuary management are also analysed.\r\nSupported by the experience of these estuaries and deltas, the report includes a reflection about the joint problems and presents lessons, conclusions and recommendations for a “Better Integrated Delta Approach”.","publication_date":{"day":null,"month":null,"year":2011,"errors":{}}},"translated_abstract":"The delta and estuary regions in Europe encounter similar characteristics, problems and opportunities, as they have to deal with a very dynamic development of urbanisation, economic activities, infrastructure and natural and technological risks.\r\nThe high spatial and economic demands are threatening the sustainable development and maintenance of the special character of Delta regions. These areas are often characterized by both very important ecological values (river basin and coastal zone), and concentrations of urban and economic activities.\r\nRegional policy measures are often inefficient and ineffective as an integrated and sustainable approach is often absent. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-9992193-figures'); } }); </script> <div class="profile--tab_heading_container js-section-heading" data-section="Papers" id="Papers"><h3 class="profile--tab_heading_container">Papers by jon coosen</h3></div><div class="js-work-strip profile--work_container" data-work-id="98933095"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/98933095/Congresses"><img alt="Research paper thumbnail of Congresses" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Congresses</div><div class="wp-workCard_item"><span>Hydrobiological Bulletin</span><span>, 1983</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Without Abstract</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="98933095"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="98933095"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 98933095; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-98933095-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="98933066"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/98933066/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems"><img alt="Research paper thumbnail of Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems" class="work-thumbnail" src="https://attachments.academia-assets.com/100152488/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/98933066/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems">Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems</a></div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1998</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems e...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c3c18bc4a200541fc6db40ad90958573" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":100152488,"asset_id":98933066,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/100152488/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="98933066"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="98933066"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 98933066; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=98933066]").text(description); $(".js-view-count[data-work-id=98933066]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 98933066; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='98933066']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c3c18bc4a200541fc6db40ad90958573" } } $('.js-work-strip[data-work-id=98933066]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":98933066,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-74851315-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="64091704"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/64091704/Hydrobiologie_van_de_Polder_Westzaan"><img alt="Research paper thumbnail of Hydrobiologie van de Polder Westzaan" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Hydrobiologie van de Polder Westzaan</div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64091704"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64091704"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64091704; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64091704]").text(description); $(".js-view-count[data-work-id=64091704]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64091704; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64091704']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=64091704]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64091704,"title":"Hydrobiologie van de Polder Westzaan","translated_title":"","metadata":{"abstract":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","publication_date":{"day":null,"month":null,"year":1976,"errors":{}}},"translated_abstract":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","internal_url":"https://www.academia.edu/64091704/Hydrobiologie_van_de_Polder_Westzaan","translated_internal_url":"","created_at":"2021-12-14T07:53:05.271-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Hydrobiologie_van_de_Polder_Westzaan","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-64091704-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="31349402"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/31349402/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems"><img alt="Research paper thumbnail of Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems" class="work-thumbnail" src="https://attachments.academia-assets.com/51731705/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/31349402/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems">Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/karelessink">karel essink</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/joncoosen">jon coosen</a></span></div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1998</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems e...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c2d738a70b97977cc0e8e9405f8d02d6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51731705,"asset_id":31349402,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51731705/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="31349402"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="31349402"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 31349402; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=31349402]").text(description); $(".js-view-count[data-work-id=31349402]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 31349402; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='31349402']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c2d738a70b97977cc0e8e9405f8d02d6" } } $('.js-work-strip[data-work-id=31349402]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":31349402,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010642-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010641"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010641/Community_structure_and_biomass_distribution_of_seagrasses_and_macrofauna_in_the_flores_sea_Indonesia"><img alt="Research paper thumbnail of Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia</div><div class="wp-workCard_item"><span>Netherlands Journal of Sea Research</span><span>, 1989</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water co...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010641"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010641"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010641; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010641]").text(description); $(".js-view-count[data-work-id=10010641]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010641; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010641']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010641]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010641,"title":"Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia","translated_title":"","metadata":{"abstract":"... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...","publication_date":{"day":null,"month":null,"year":1989,"errors":{}},"publication_name":"Netherlands Journal of Sea Research"},"translated_abstract":"... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...","internal_url":"https://www.academia.edu/10010641/Community_structure_and_biomass_distribution_of_seagrasses_and_macrofauna_in_the_flores_sea_Indonesia","translated_internal_url":"","created_at":"2015-01-05T01:49:02.354-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Community_structure_and_biomass_distribution_of_seagrasses_and_macrofauna_in_the_flores_sea_Indonesia","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":415,"name":"Oceanography","url":"https://www.academia.edu/Documents/in/Oceanography"}],"urls":[{"id":4108674,"url":"http://linkinghub.elsevier.com/retrieve/pii/0077757989900148"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010641-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010640"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/10010640/Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_"><img alt="Research paper thumbnail of Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull..." class="work-thumbnail" src="https://attachments.academia-assets.com/47571185/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/10010640/Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_">Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull...</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="05b50e3b31bd1355ba2380ce7dd87ffb" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":47571185,"asset_id":10010640,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/47571185/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010640"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010640"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010640; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010640]").text(description); $(".js-view-count[data-work-id=10010640]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010640; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010640']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "05b50e3b31bd1355ba2380ce7dd87ffb" } } $('.js-work-strip[data-work-id=10010640]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010640,"title":"Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull...","translated_title":"","metadata":{"abstract":"In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.","internal_url":"https://www.academia.edu/10010640/Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_","translated_internal_url":"","created_at":"2015-01-05T01:48:57.585-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":47571185,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/47571185/thumbnails/1.jpg","file_name":"Coosen_J_Seys_J_Meire_PM_Craeymeersch_J.20160727-22865-1hciu21.pdf","download_url":"https://www.academia.edu/attachments/47571185/download_file","bulk_download_file_name":"Effect_of_sedimentological_and_hydrodyna.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/47571185/Coosen_J_Seys_J_Meire_PM_Craeymeersch_J.20160727-22865-1hciu21-libre.pdf?1469648746=\u0026response-content-disposition=attachment%3B+filename%3DEffect_of_sedimentological_and_hydrodyna.pdf\u0026Expires=1743442589\u0026Signature=S-ZdKXuPuKDia1kCkj79apx0flKGhCV~gETS4gbic57oAX9FhPZILVNJ7roVcqxK3AFdCNSSjVyBkUbVMu1BEYrJ-XCU2YA61Xecx8UAdPS54vgXkNGvvSH0wTQ~fcNi~9k~KM25exs5oJ-MJ7VJGMse-lePppG5qieFKqvzOMmgHta-kAauWTDbCwygs9XwmFWKQvfZR8vRS-ZUIqTol~J4UdNYtxkWb83N6JUCks8L0k2gqwJkp7~P95KQnxrNSf5Vvt-I-GlqxNfF9ZGuunUG~QUF~oBfT2vpYZbSbulKyQ8x~3cMJCgU~5myAw~3edHT8c4JvBCyK5tR3cAu2w__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_","translated_slug":"","page_count":15,"language":"en","content_type":"Work","summary":"In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. 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To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010639"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010639"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010639; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010639]").text(description); $(".js-view-count[data-work-id=10010639]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010639; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010639']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010639]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010639,"title":"Variability in stock assessment of cockles (Cerastoderma edule L.) in the Oosterschelde (in 1980–1990), in relation to environmental factors","translated_title":"","metadata":{"abstract":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","internal_url":"https://www.academia.edu/10010639/Variability_in_stock_assessment_of_cockles_Cerastoderma_edule_L_in_the_Oosterschelde_in_1980_1990_in_relation_to_environmental_factors","translated_internal_url":"","created_at":"2015-01-05T01:48:54.329-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Variability_in_stock_assessment_of_cockles_Cerastoderma_edule_L_in_the_Oosterschelde_in_1980_1990_in_relation_to_environmental_factors","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":100077,"name":"Stock assessment","url":"https://www.academia.edu/Documents/in/Stock_assessment"},{"id":509556,"name":"Human Activity","url":"https://www.academia.edu/Documents/in/Human_Activity"},{"id":580672,"name":"Tidal Flat","url":"https://www.academia.edu/Documents/in/Tidal_Flat"},{"id":1582364,"name":"Growth Curve","url":"https://www.academia.edu/Documents/in/Growth_Curve"}],"urls":[{"id":4108672,"url":"http://www.springerlink.com/index/q00246n3r25312m1.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010639-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010637"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems"><img alt="Research paper thumbnail of Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems" class="work-thumbnail" src="https://attachments.academia-assets.com/47571198/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems">Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems</a></div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1998</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems e...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary was probably due to a greater habitat diversity. In both estuaries species diversity decreased with distance upstream. The total density did not vary along the estuarine gradient, whereas biomass is highest in the polyhaline zone. In both estuaries distinct intertidal benthic communities were observed along the salinity gradient: a marine community in the polyhaline zone, a brackish community in the mesohaline zone, and a third community in the oligohaline and freshwater tidal zones of the estuary. These three communities were very similar between both estuaries. Their main characteristics were discussed together with the occurrence and distribution of the dominant species. For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="6afc59948ba1f4dff2d7ec74529704e8" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":47571198,"asset_id":10010637,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/47571198/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010637"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010637"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010637; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010637]").text(description); $(".js-view-count[data-work-id=10010637]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010637; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010637']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "6afc59948ba1f4dff2d7ec74529704e8" } } $('.js-work-strip[data-work-id=10010637]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010637,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary was probably due to a greater habitat diversity. In both estuaries species diversity decreased with distance upstream. The total density did not vary along the estuarine gradient, whereas biomass is highest in the polyhaline zone. In both estuaries distinct intertidal benthic communities were observed along the salinity gradient: a marine community in the polyhaline zone, a brackish community in the mesohaline zone, and a third community in the oligohaline and freshwater tidal zones of the estuary. These three communities were very similar between both estuaries. Their main characteristics were discussed together with the occurrence and distribution of the dominant species. For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.","publication_date":{"day":null,"month":null,"year":1998,"errors":{}},"publication_name":"Aquatic Ecology"},"translated_abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary was probably due to a greater habitat diversity. In both estuaries species diversity decreased with distance upstream. The total density did not vary along the estuarine gradient, whereas biomass is highest in the polyhaline zone. In both estuaries distinct intertidal benthic communities were observed along the salinity gradient: a marine community in the polyhaline zone, a brackish community in the mesohaline zone, and a third community in the oligohaline and freshwater tidal zones of the estuary. These three communities were very similar between both estuaries. Their main characteristics were discussed together with the occurrence and distribution of the dominant species. For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.","internal_url":"https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems","translated_internal_url":"","created_at":"2015-01-05T01:48:50.378-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":47571198,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/47571198/thumbnails/1.jpg","file_name":"Zonation_of_intertidal_macrobenthos_in_t20160727-32390-x0qpmc.pdf","download_url":"https://www.academia.edu/attachments/47571198/download_file","bulk_download_file_name":"Zonation_of_intertidal_macrobenthos_in_t.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/47571198/Zonation_of_intertidal_macrobenthos_in_t20160727-32390-x0qpmc-libre.pdf?1469648747=\u0026response-content-disposition=attachment%3B+filename%3DZonation_of_intertidal_macrobenthos_in_t.pdf\u0026Expires=1743442589\u0026Signature=O~8sc9IgReKcj4zTj2KuyUvFaaGMOUX2euz6QdZNiVWqjOXsYnmhm4SFkmFt71Fl6CwFAs8tK3jQ82aHAbOk6BdctV7BQAp-pa0DeI-SiFl8kygbleLPe-Gq25c2oRXJX9fxzaXk9jpLnVOd4lafTazlcoOHMBKCtncVvBmLWTKloCrTOJ4Qjk5CexQVGnEyWvRrWnc1Gdy0rHyZGn-2m9L8fs7zhr-m14b5rXDiavVhTTJFG62518Q6XXner3EUDlV1HOBBABsLghepPNVSXVQX~Safjsf0QIkfV7BVzzWchOFlFYbqIofLV9fU2Zdt8FQ1dSKZey54YyiwxLdjAA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems","translated_slug":"","page_count":19,"language":"en","content_type":"Work","summary":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary was probably due to a greater habitat diversity. In both estuaries species diversity decreased with distance upstream. The total density did not vary along the estuarine gradient, whereas biomass is highest in the polyhaline zone. In both estuaries distinct intertidal benthic communities were observed along the salinity gradient: a marine community in the polyhaline zone, a brackish community in the mesohaline zone, and a third community in the oligohaline and freshwater tidal zones of the estuary. These three communities were very similar between both estuaries. Their main characteristics were discussed together with the occurrence and distribution of the dominant species. For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010637-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010635"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010635/Long_term_changes_in_the_intertidal_macrobenthic_fauna_at_eight_permanent_stations_in_the_Oosterschelde_effects_of_the_construction_of_the_storm_surge_barrier_preliminary_results"><img alt="Research paper thumbnail of Long-term changes in the intertidal macrobenthic fauna at eight permanent stations in the Oosterschelde - effects of the construction of the storm surge barrier: preliminary results" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Long-term changes in the intertidal macrobenthic fauna at eight permanent stations in the Oosterschelde - effects of the construction of the storm surge barrier: preliminary results</div><div class="wp-workCard_item"><span>Ibis</span><span>, 1995</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010635"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010635"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010635; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010635-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010632"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010632/Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier"><img alt="Research paper thumbnail of Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier</div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010632"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010632"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010632; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010632]").text(description); $(".js-view-count[data-work-id=10010632]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010632; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010632']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010632]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010632,"title":"Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier","translated_title":"","metadata":{"abstract":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","internal_url":"https://www.academia.edu/10010632/Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier","translated_internal_url":"","created_at":"2015-01-05T01:48:42.019-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":556983,"name":"Storm surge","url":"https://www.academia.edu/Documents/in/Storm_surge"},{"id":758278,"name":"Large Scale","url":"https://www.academia.edu/Documents/in/Large_Scale"}],"urls":[{"id":4108670,"url":"http://www.springerlink.com/index/h717487126767601.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010632-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010631"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010631/Spatial_and_temporal_patterns_of_intertidal_macrobenthic_populations_in_the_Oosterschelde_are_they_influenced_by_the_construction_of_the_storm_surge_barrier"><img alt="Research paper thumbnail of Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier</div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydr...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010631"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010631"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010631; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010631]").text(description); $(".js-view-count[data-work-id=10010631]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010631; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010631']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010631]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010631,"title":"Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier","translated_title":"","metadata":{"abstract":"The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). 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This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":556983,"name":"Storm surge","url":"https://www.academia.edu/Documents/in/Storm_surge"},{"id":758278,"name":"Large Scale","url":"https://www.academia.edu/Documents/in/Large_Scale"},{"id":1292705,"name":"Environmental Parameter","url":"https://www.academia.edu/Documents/in/Environmental_Parameter"},{"id":1391624,"name":"Benthic Communities","url":"https://www.academia.edu/Documents/in/Benthic_Communities"}],"urls":[{"id":4108669,"url":"http://www.springerlink.com/index/ph267px06k6h37qx.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010631-figures'); } }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="2367500" id="scientificandtechnicalreports"><div class="js-work-strip profile--work_container" data-work-id="9992193"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/9992193/Good_Practices_and_Policy_Recommendations_on_Theme_1_Integrated_Delta_Approach_"><img alt="Research paper thumbnail of Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)" class="work-thumbnail" src="https://attachments.academia-assets.com/36132788/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/9992193/Good_Practices_and_Policy_Recommendations_on_Theme_1_Integrated_Delta_Approach_">Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://cardiff.academia.edu/GwilymOwen">Gwilym Owen</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://cardiff.academia.edu/RhodaBallinger">Rhoda Ballinger</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/joncoosen">jon coosen</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://fcsh-unl.academia.edu/andrefernandes">André Fernandes</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The delta and estuary regions in Europe encounter similar characteristics, problems and opportuni...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The delta and estuary regions in Europe encounter similar characteristics, problems and opportunities, as they have to deal with a very dynamic development of urbanisation, economic activities, infrastructure and natural and technological risks. <br />The high spatial and economic demands are threatening the sustainable development and maintenance of the special character of Delta regions. These areas are often characterized by both very important ecological values (river basin and coastal zone), and concentrations of urban and economic activities. <br />Regional policy measures are often inefficient and ineffective as an integrated and sustainable approach is often absent. That is why some Delta areas throughout Europe decided to start a <br />cooperation to exchange experiences and improve their regional policy instruments, methods <br />and approaches. <br />Taking into account this problematic issue, this report is focused on the identification of good <br />practices for a “Better Integrated Delta Approach” (Theme 1), based on the experience of the Tagus Estuary, Elbe Estuary, Severn Estuary and Rhine-Scheldt Meuse Delta. <br />For each estuary or delta, a brief description of their situation is presented (main physical and human features, institutional framework, identification and brief description of the estuary <br />management plan, identification of protected and particularly sensitive areas and identification of the main problematic issues). Good practices concerning estuary management are also analysed. <br />Supported by the experience of these estuaries and deltas, the report includes a reflection about the joint problems and presents lessons, conclusions and recommendations for a “Better Integrated Delta Approach”.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b0a6722b34cdb75d56ad69264c7373dd" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":36132788,"asset_id":9992193,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/36132788/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="9992193"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="9992193"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 9992193; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=9992193]").text(description); $(".js-view-count[data-work-id=9992193]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 9992193; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='9992193']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "b0a6722b34cdb75d56ad69264c7373dd" } } $('.js-work-strip[data-work-id=9992193]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":9992193,"title":"Good Practices and Policy Recommendations on Theme 1 (Integrated Delta Approach)","translated_title":"","metadata":{"abstract":"The delta and estuary regions in Europe encounter similar characteristics, problems and opportunities, as they have to deal with a very dynamic development of urbanisation, economic activities, infrastructure and natural and technological risks.\r\nThe high spatial and economic demands are threatening the sustainable development and maintenance of the special character of Delta regions. 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That is why some Delta areas throughout Europe decided to start a\r\ncooperation to exchange experiences and improve their regional policy instruments, methods\r\nand approaches.\r\nTaking into account this problematic issue, this report is focused on the identification of good\r\npractices for a “Better Integrated Delta Approach” (Theme 1), based on the experience of the Tagus Estuary, Elbe Estuary, Severn Estuary and Rhine-Scheldt Meuse Delta.\r\nFor each estuary or delta, a brief description of their situation is presented (main physical and human features, institutional framework, identification and brief description of the estuary\r\nmanagement plan, identification of protected and particularly sensitive areas and identification of the main problematic issues). 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-9992193-figures'); } }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="2367518" id="papers"><div class="js-work-strip profile--work_container" data-work-id="98933095"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/98933095/Congresses"><img alt="Research paper thumbnail of Congresses" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Congresses</div><div class="wp-workCard_item"><span>Hydrobiological Bulletin</span><span>, 1983</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Without Abstract</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="98933095"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="98933095"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 98933095; 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The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c3c18bc4a200541fc6db40ad90958573" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":100152488,"asset_id":98933066,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/100152488/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="98933066"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="98933066"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 98933066; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=98933066]").text(description); $(".js-view-count[data-work-id=98933066]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 98933066; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='98933066']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c3c18bc4a200541fc6db40ad90958573" } } $('.js-work-strip[data-work-id=98933066]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":98933066,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-74851315-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="64091704"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/64091704/Hydrobiologie_van_de_Polder_Westzaan"><img alt="Research paper thumbnail of Hydrobiologie van de Polder Westzaan" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Hydrobiologie van de Polder Westzaan</div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64091704"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64091704"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64091704; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64091704]").text(description); $(".js-view-count[data-work-id=64091704]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64091704; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64091704']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=64091704]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64091704,"title":"Hydrobiologie van de Polder Westzaan","translated_title":"","metadata":{"abstract":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","publication_date":{"day":null,"month":null,"year":1976,"errors":{}}},"translated_abstract":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","internal_url":"https://www.academia.edu/64091704/Hydrobiologie_van_de_Polder_Westzaan","translated_internal_url":"","created_at":"2021-12-14T07:53:05.271-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Hydrobiologie_van_de_Polder_Westzaan","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"HYDROBIOLOGIE OF THE “POLDER WESTZAAN”. Investigations into the macrofauna and water quality of a brackish water area in the Dutch province North-Holland. Part I. Water quality of the “Polder Westzaan”. From February till June 1974 macrofauna samples were taken with monthly intervalls at 9 Stations scattered in the “Polder Westzaan”, municipality Zaanstad (for position of the Stations see map). In three of the Stations samples were also taken in July, August, and September. From March till October 1974 the 02-saturations percentage and the water temperature were measured and water samples were taken at monthly intervalls. These water samples were analysed by the Dienst Milieuhygiene Zaanstad for the presence of Cl-, nitrate, nitrite, Ammonium, phoshate, sulphate, and heavy metals as well as for the pH; total hardness and COD values. Conclusions: Stations G5 and G7 “Het Guisveld” gives a highly polluted impression, especially when we consider the high COD,PO3- 4, and NH4+ -values. Li...","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-64091704-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="31349402"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/31349402/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems"><img alt="Research paper thumbnail of Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems" class="work-thumbnail" src="https://attachments.academia-assets.com/51731705/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/31349402/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems">Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/karelessink">karel essink</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/joncoosen">jon coosen</a></span></div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1998</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems e...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c2d738a70b97977cc0e8e9405f8d02d6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51731705,"asset_id":31349402,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51731705/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="31349402"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="31349402"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 31349402; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=31349402]").text(description); $(".js-view-count[data-work-id=31349402]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 31349402; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='31349402']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c2d738a70b97977cc0e8e9405f8d02d6" } } $('.js-work-strip[data-work-id=31349402]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":31349402,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-31349402-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010642"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010642/Congresses"><img alt="Research paper thumbnail of Congresses" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Congresses</div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1983</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010642"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010642"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010642; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010642-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010641"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010641/Community_structure_and_biomass_distribution_of_seagrasses_and_macrofauna_in_the_flores_sea_Indonesia"><img alt="Research paper thumbnail of Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia</div><div class="wp-workCard_item"><span>Netherlands Journal of Sea Research</span><span>, 1989</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water co...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010641"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010641"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010641; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010641]").text(description); $(".js-view-count[data-work-id=10010641]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010641; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010641']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010641]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010641,"title":"Community structure and biomass distribution of seagrasses and macrofauna in the flores sea, Indonesia","translated_title":"","metadata":{"abstract":"... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...","publication_date":{"day":null,"month":null,"year":1989,"errors":{}},"publication_name":"Netherlands Journal of Sea Research"},"translated_abstract":"... inclining reef flats and lagoons car-TABLE 1 Enironmental parameters measured in the water column of seagrass beds in the Flores Sea, Indonesia ... 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Table 3 shows data on ash-free dry weight and ele-mentary analyses (C expressed as Particulate Orga-nic Carbon, total N and ...","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":415,"name":"Oceanography","url":"https://www.academia.edu/Documents/in/Oceanography"}],"urls":[{"id":4108674,"url":"http://linkinghub.elsevier.com/retrieve/pii/0077757989900148"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010641-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010640"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/10010640/Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_"><img alt="Research paper thumbnail of Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull..." class="work-thumbnail" src="https://attachments.academia-assets.com/47571185/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/10010640/Effect_of_sedimentological_and_hydrodynamical_changes_in_the_intertidal_areas_of_the_Oosterschelde_estuary_SW_Netherlands_on_distribution_density_and_biomass_of_five_common_macrobenthic_species_Spio_martinensis_Mesnil_Hydrobia_ulvae_Pennant_Arenicola_marina_L_Scoloplos_armiger_Mull_">Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull...</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="05b50e3b31bd1355ba2380ce7dd87ffb" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":47571185,"asset_id":10010640,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/47571185/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010640"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010640"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010640; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010640]").text(description); $(".js-view-count[data-work-id=10010640]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010640; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010640']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "05b50e3b31bd1355ba2380ce7dd87ffb" } } $('.js-work-strip[data-work-id=10010640]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010640,"title":"Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Mull...","translated_title":"","metadata":{"abstract":"In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same ‘nursery grounds’. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. 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To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010639"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010639"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010639; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010639]").text(description); $(".js-view-count[data-work-id=10010639]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010639; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010639']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010639]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010639,"title":"Variability in stock assessment of cockles (Cerastoderma edule L.) in the Oosterschelde (in 1980–1990), in relation to environmental factors","translated_title":"","metadata":{"abstract":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","internal_url":"https://www.academia.edu/10010639/Variability_in_stock_assessment_of_cockles_Cerastoderma_edule_L_in_the_Oosterschelde_in_1980_1990_in_relation_to_environmental_factors","translated_internal_url":"","created_at":"2015-01-05T01:48:54.329-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Variability_in_stock_assessment_of_cockles_Cerastoderma_edule_L_in_the_Oosterschelde_in_1980_1990_in_relation_to_environmental_factors","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"The edible cockle (Cerastoderma edule L.) is a dominant suspension feeder in the Oosterschelde, a 351 km2 tidal bay in the SW Netherlands. To establish its role in the benthic foodweb, and to assess the impact of human activities, data on density, age composition, biomass and growth were collected from several tidal flats in the Oosterschelde between 1980 and 1990. To estimate the overall biomass development of the cockle, a simple model was used, in which three growing seasons are defined for the cockle population. A standard individual growth curve was constructed. A negative exponential mortality function was assumed to estimate the number of recruits. By combining the estimated number of recruits, the estimated specific mortality rate and the standard individual growth curve, numbers and biomass of each age group in the Oosterschelde population were estimated. Average biomass (including shell organics) per m2 of tidal flat in August varied from 140 g AFDW in 1980 to 21 g AFDW in 1989, implying a total cockle stock on all tidal flats of 19 170 to 2350 tonnes AFDW (72 × 103 to 9 × 103 tonnes flesh), respectively. A comparison of results from field surveys and the reconstructed stock estimations showed large deviations. However, an uncertainty analysis performed on the model showed that most field data fitted within the minimum and maximum biomass calculated. Total biomass is largely dependent on the strength of certain year classes. In this respect, the year classes 1979, 1982, and 1985 were good. Effects of the construction of the storm-surge barrier and the compartmentalisation dams could not be demonstrated. The year-to-year variation in cockle stocks, assessed in the way described in this paper should be regarded as relative, because a systematic survey of the intertidal flats was not performed every year, but population dynamics from selected stations were used instead.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":100077,"name":"Stock assessment","url":"https://www.academia.edu/Documents/in/Stock_assessment"},{"id":509556,"name":"Human Activity","url":"https://www.academia.edu/Documents/in/Human_Activity"},{"id":580672,"name":"Tidal Flat","url":"https://www.academia.edu/Documents/in/Tidal_Flat"},{"id":1582364,"name":"Growth Curve","url":"https://www.academia.edu/Documents/in/Growth_Curve"}],"urls":[{"id":4108672,"url":"http://www.springerlink.com/index/q00246n3r25312m1.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010639-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010637"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems"><img alt="Research paper thumbnail of Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems" class="work-thumbnail" src="https://attachments.academia-assets.com/47571198/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems">Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems</a></div><div class="wp-workCard_item"><span>Aquatic Ecology</span><span>, 1998</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems e...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. The spatial occurrence of the benthic macrofauna along the salinity gradient, including the freshwater tidal area was emphasized. Both estuaries appeared to have a very similar species composition, especially at genus level. The higher number of species observed in the Schelde estuary was probably due to a greater habitat diversity. In both estuaries species diversity decreased with distance upstream. The total density did not vary along the estuarine gradient, whereas biomass is highest in the polyhaline zone. In both estuaries distinct intertidal benthic communities were observed along the salinity gradient: a marine community in the polyhaline zone, a brackish community in the mesohaline zone, and a third community in the oligohaline and freshwater tidal zones of the estuary. These three communities were very similar between both estuaries. Their main characteristics were discussed together with the occurrence and distribution of the dominant species. For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="6afc59948ba1f4dff2d7ec74529704e8" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":47571198,"asset_id":10010637,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/47571198/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010637"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010637"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010637; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010637]").text(description); $(".js-view-count[data-work-id=10010637]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010637; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010637']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "6afc59948ba1f4dff2d7ec74529704e8" } } $('.js-work-strip[data-work-id=10010637]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010637,"title":"Zonation of intertidal macrobenthos in the estuaries of Schelde and Ems","translated_title":"","metadata":{"abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.","publication_date":{"day":null,"month":null,"year":1998,"errors":{}},"publication_name":"Aquatic Ecology"},"translated_abstract":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. A comparison with some other European estuaries showed in general similar trends as those observed for the Schelde and Ems estuaries.","internal_url":"https://www.academia.edu/10010637/Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems","translated_internal_url":"","created_at":"2015-01-05T01:48:50.378-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":47571198,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/47571198/thumbnails/1.jpg","file_name":"Zonation_of_intertidal_macrobenthos_in_t20160727-32390-x0qpmc.pdf","download_url":"https://www.academia.edu/attachments/47571198/download_file","bulk_download_file_name":"Zonation_of_intertidal_macrobenthos_in_t.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/47571198/Zonation_of_intertidal_macrobenthos_in_t20160727-32390-x0qpmc-libre.pdf?1469648747=\u0026response-content-disposition=attachment%3B+filename%3DZonation_of_intertidal_macrobenthos_in_t.pdf\u0026Expires=1743442589\u0026Signature=O~8sc9IgReKcj4zTj2KuyUvFaaGMOUX2euz6QdZNiVWqjOXsYnmhm4SFkmFt71Fl6CwFAs8tK3jQ82aHAbOk6BdctV7BQAp-pa0DeI-SiFl8kygbleLPe-Gq25c2oRXJX9fxzaXk9jpLnVOd4lafTazlcoOHMBKCtncVvBmLWTKloCrTOJ4Qjk5CexQVGnEyWvRrWnc1Gdy0rHyZGn-2m9L8fs7zhr-m14b5rXDiavVhTTJFG62518Q6XXner3EUDlV1HOBBABsLghepPNVSXVQX~Safjsf0QIkfV7BVzzWchOFlFYbqIofLV9fU2Zdt8FQ1dSKZey54YyiwxLdjAA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Zonation_of_intertidal_macrobenthos_in_the_estuaries_of_Schelde_and_Ems","translated_slug":"","page_count":19,"language":"en","content_type":"Work","summary":"Based on data, collected in 1980–1990, the intertidal benthic macrofauna of the Schelde and Ems estuaries was compared. 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For the Schelde estuary and to a lesser extent also for the Ems estuary, there was evidence that anthropogenic stress had a negative effect on the intertidal macrobenthic communities of the oligohaline/freshwater tidal zone. Only Oligochaeta were dominating, whereas the very euryhaline and/or true limnetic species were missing. In the mesohaline zone, the Schelde estuary was dominated by large numbers of short-living, opportunistic species, whereas in the Ems estuary relatively more stable macrobenthic communities were observed. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010635-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010632"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010632/Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier"><img alt="Research paper thumbnail of Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier</div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010632"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010632"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010632; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010632]").text(description); $(".js-view-count[data-work-id=10010632]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010632; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010632']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010632]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010632,"title":"Long-term changes (1979–89) in the intertidal macrozoobenthos of the Oosterschelde estuary: are patterns in total density, biomass and diversity induced by the construction of the storm-surge barrier","translated_title":"","metadata":{"abstract":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","internal_url":"https://www.academia.edu/10010632/Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier","translated_internal_url":"","created_at":"2015-01-05T01:48:42.019-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Long_term_changes_1979_89_in_the_intertidal_macrozoobenthos_of_the_Oosterschelde_estuary_are_patterns_in_total_density_biomass_and_diversity_induced_by_the_construction_of_the_storm_surge_barrier","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"To evaluate the effects of the construction of a storm surge barrier in the Oosterschelde, long-term patterns (1979–89) in abundance and biomass of the intertidal macrozoobenthos were studied at 14 permanent stations. Additionally, data of a large-scale survey in late summer 1985 and 1989 were analysed. In this paper, patterns in general parameters are discussed. Late summer values of total biomass, total density, species richness, diversity and abundance- and biomass ratio show no overall significant trend during the study period. The changes in the hydrodynamics and the morphology of the Oosterschelde after the completion of the storm surge barrier do not seem to have influenced the normal patterns in benthic populations. The observed patterns are determined by the occurrence of severe versus mild winters, rather than by hydrodynamic changes caused by the construction of the barrier. Low biomasses, high densities (particularly of opportunistic species) and higher “stress-values” (abundance- and biomass ratio) in 1985(−87) indicate a temporal disturbance by severe winter weather. At the elevated COST-station 27, total biomass decreased sharply in 1985, due to a short-term increase in exposure time, caused by the manipulation of the storm surge barrier.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":556983,"name":"Storm surge","url":"https://www.academia.edu/Documents/in/Storm_surge"},{"id":758278,"name":"Large Scale","url":"https://www.academia.edu/Documents/in/Large_Scale"}],"urls":[{"id":4108670,"url":"http://www.springerlink.com/index/h717487126767601.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") if (false) { Aedu.setUpFigureCarousel('profile-work-10010632-figures'); } }); </script> <div class="js-work-strip profile--work_container" data-work-id="10010631"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/10010631/Spatial_and_temporal_patterns_of_intertidal_macrobenthic_populations_in_the_Oosterschelde_are_they_influenced_by_the_construction_of_the_storm_surge_barrier"><img alt="Research paper thumbnail of Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title">Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier</div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 1994</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydr...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="10010631"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="10010631"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10010631; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10010631]").text(description); $(".js-view-count[data-work-id=10010631]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10010631; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='10010631']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=10010631]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":10010631,"title":"Spatial and temporal patterns of intertidal macrobenthic populations in the Oosterschelde: are they influenced by the construction of the storm-surge barrier","translated_title":"","metadata":{"abstract":"The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.","publication_date":{"day":null,"month":null,"year":1994,"errors":{}},"publication_name":"Hydrobiologia"},"translated_abstract":"The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.","internal_url":"https://www.academia.edu/10010631/Spatial_and_temporal_patterns_of_intertidal_macrobenthic_populations_in_the_Oosterschelde_are_they_influenced_by_the_construction_of_the_storm_surge_barrier","translated_internal_url":"","created_at":"2015-01-05T01:48:36.517-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":24369839,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Spatial_and_temporal_patterns_of_intertidal_macrobenthic_populations_in_the_Oosterschelde_are_they_influenced_by_the_construction_of_the_storm_surge_barrier","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"The construction of a storm-surge barrier in the mouth of the Oosterschelde caused important hydrodynamical and morphological changes that could influence the macrobenthic populations. This paper is one in a series of five all dealing with the effects of the storm-surge barrier on macrozoobenthos and analyses the spatial and temporal distribution of macrozoobenthos in the Oosterschelde and its relationship with some environmental parameters, based on two large scale sampling campaigns, one before and one after the completion of the barrier. The sediment of the sampling stations was fine, well sorted sand, with an average mud content of about 2.5 %. Only in the Krabbenkreek the sediment was coarser in 1989. The tidal elevation of the sampling sites decreased significantly in 1989. The density of macrozoobenthos was significantly lower, the biomass higher in 1989. The density was dominated by deposit feeders, the biomass by filter feeders. The difference in biomass between both years was mainly due to a substantial increase of the biomass of filter feeders in 1989. The number of species per station was significantly smaller in 1989 than in 1985. Between 1985 and 1989, frequency of occurrence decreased in 34 versus 13 which increased, density increased in 13 species and decreased in 34 species, biomass increased in 18 species and decreased in 29 species. Based on TWINSPAN several clusters of stations, each with a different faunal composition, were identified. These clusters did not form distinct zones on the tidal flats but were dispersed widely. The relationship between density and biomass of different trophic groups and the mud content of the sediment and the depth was analysed. This relationship sometimes differed clearly between years. The correlation coefficient of a multiple regression between density and biomass of individual species and environmental factors, although significant in most cases, was very low, indicating that only a small proportion of the species variability was explained. The relationship between benthos and environmental factors was further analysed by canonical correlation analysis and multivariate discriminant analysis that gave different results for the 1985 and 1989 data. This is probably due to the broad tolerance of the species to the range of the environmental variables found in our study area. From a TWINSPAN of the density data of 1985 and 1989 together we could conclude that, although the environmental parameters in a group of stations, showing a large faunal similarity in one year, did not change, the faunal composition did. This indicates that faunal changes are not necessarily linked to changes in the measured environmental parameters. In the discussion the different factors affecting macrobenthic populations are situated and it is suggested that the macrobenthic populations are probably more towards the nonequilibrium end of the continuum between nonequilibrium and equilibrium communities as defined by Wiens (1984). Although the impact of the construction of the barrier on the macrobenthic community seems at present to be rather small this does not mean that on the long-term there will be no effect.","owner":{"id":24369839,"first_name":"jon","middle_initials":"","last_name":"coosen","page_name":"joncoosen","domain_name":"independent","created_at":"2015-01-05T01:46:16.193-08:00","display_name":"jon coosen","url":"https://independent.academia.edu/joncoosen"},"attachments":[],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":556983,"name":"Storm surge","url":"https://www.academia.edu/Documents/in/Storm_surge"},{"id":758278,"name":"Large Scale","url":"https://www.academia.edu/Documents/in/Large_Scale"},{"id":1292705,"name":"Environmental Parameter","url":"https://www.academia.edu/Documents/in/Environmental_Parameter"},{"id":1391624,"name":"Benthic Communities","url":"https://www.academia.edu/Documents/in/Benthic_Communities"}],"urls":[{"id":4108669,"url":"http://www.springerlink.com/index/ph267px06k6h37qx.pdf"}]}, dispatcherData: dispatcherData }); 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