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Search results for: anthropogenic marine litter
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1267</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: anthropogenic marine litter</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1267</span> Marine Litter and Microplastic Pollution in Mangrove Sediments in The Sea of Oman</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muna%20Al-Tarshi">Muna Al-Tarshi</a>, <a href="https://publications.waset.org/abstracts/search?q=Dobretsov%20Sergey"> Dobretsov Sergey</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenresti%20Gallardo"> Wenresti Gallardo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine litter pollution is a global concern that has wide-ranging ecological, societal, and economic implications, along with potential health risks for humans. In Oman, inadequate solid waste management has led to the accumulation of litter in mangrove ecosystems. However, there is a dearth of information on marine litter and microplastic pollution in Omani mangroves, impeding the formulation of effective mitigation strategies. To address this knowledge gap, we conducted a comprehensive assessment of marine litter and microplastics in mangrove sediments in the Sea of Oman. Our study measured the average abundance of marine litter, which ranged from 0.83±1.03 to 19.42±8.52 items/m2. Notably, plastics constituted the majority of litter, accounting for 73-96% of all items, with soft plastics being the most prevalent. Furthermore, we investigated microplastic concentrations in the sediments, finding levels ranging from 6 to 256 pieces /kg. Among the studied areas, afforested mangroves in Al-Sawadi exhibited the highest average abundance of microplastics (27.52±5.32 pieces/ kg), while the Marine Protected Area Al Qurum had the lowest average abundance (0.60±1.12 pieces /kg). These findings significantly contribute to our understanding of marine litter and microplastic pollution in Omani mangroves. They provide valuable baseline data for future monitoring initiatives and the development of targeted management strategies. Urgent action is needed to implement effective waste management practices and interventions to protect the ecological integrity of mangrove ecosystems in Oman and mitigate the risks associated with marine litter and microplastics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microplastics" title="microplastics">microplastics</a>, <a href="https://publications.waset.org/abstracts/search?q=anthropogenic%20marine%20litter" title=" anthropogenic marine litter"> anthropogenic marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=ftir" title=" ftir"> ftir</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer" title=" polymer"> polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=khawr" title=" khawr"> khawr</a>, <a href="https://publications.waset.org/abstracts/search?q=mangrove" title=" mangrove"> mangrove</a>, <a href="https://publications.waset.org/abstracts/search?q=sediment" title=" sediment"> sediment</a> </p> <a href="https://publications.waset.org/abstracts/168029/marine-litter-and-microplastic-pollution-in-mangrove-sediments-in-the-sea-of-oman" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168029.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">87</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1266</span> Mapping the Technological Interventions to the National Action Plan for Marine Litter Management 2018-2025: Addressing the Marine Plastic Litter at the Marine Tourism Destinations in Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kaisar%20Akhir">Kaisar Akhir</a>, <a href="https://publications.waset.org/abstracts/search?q=Azhar%20Slamet"> Azhar Slamet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to provide recommendations for addressing marine plastic litter at the ocean tourism destinations in Indonesia sustainably through technological interventions in the framework of the National Action Plan for Marine Litter Management 2018-2025. In Indonesia, marine tourism is a rapidly growing economic sector. However, marine tourism destinations are facing a global challenge called marine plastic litter. Marine plastic litter is a threat to those destinations since it has potential impacts on the reduction of marine environmental sustainability, the health of tourists and local communities as well as tourism business income. Since 2018, the Indonesian government has passed and promulgated the National Plan of Action on Marine Litter Management 2018-2025. This national action plan consists of three important key aspects of interventions (i.e., societal effort, technological application, and institutional coordination) and five strategies for addressing marine litter in Indonesia, in particular, to address 70% of marine plastic litter by 2025. The strategies include 1) National movement for raising awareness of stakeholders, 2) Land-based litter management, 3) Litter management at the sea and coasts, 4) Funding mechanism, institutional strengthening, monitoring, and law enforcement, and 5) Research and development. In this study, technological interventions around the world and in Indonesia are reviewed and analyzed on their relevance to the national action plan based on five criteria. As a result, there are twelve kinds of technological interventions recommended to be implemented for addressing marine plastic litter in the marine tourism destinations in Indonesia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=marine%20litter%20management" title="marine litter management">marine litter management</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20plastic%20litter" title=" marine plastic litter"> marine plastic litter</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20action%20plan" title=" national action plan"> national action plan</a>, <a href="https://publications.waset.org/abstracts/search?q=ocean%20sustainability" title=" ocean sustainability"> ocean sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=ocean%20tourism%20destination" title=" ocean tourism destination"> ocean tourism destination</a>, <a href="https://publications.waset.org/abstracts/search?q=technological%20interventions" title=" technological interventions"> technological interventions</a> </p> <a href="https://publications.waset.org/abstracts/121597/mapping-the-technological-interventions-to-the-national-action-plan-for-marine-litter-management-2018-2025-addressing-the-marine-plastic-litter-at-the-marine-tourism-destinations-in-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121597.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">168</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1265</span> Composition and Distribution of Seabed Marine Litter Along Algerian Coast (Western Mediterranean)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Inal">Ahmed Inal</a>, <a href="https://publications.waset.org/abstracts/search?q=Samir%20Rouidi"> Samir Rouidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Samir%20Bachouche"> Samir Bachouche</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study is focused on the distribution and composition of seafloor marine litter associated to trawlable fishing areas along Algerian coast. The sampling was done with a GOC73 bottom trawl during four (04) demersal resource assessment cruises, respectively, in 2016, 2019, 2021 and 2022, carried out on board BELKACEM GRINE R/V. A total of 254 fishing hauls were sampled for the assessment of marine litter. Hauls were performed between 22 and 600 m of depth, the duration was between 30 and 60 min. All sampling was conducted during daylight. After the haul, marine litter was sorted and split from the catch. Then, according to the basis of the MEDITS protocol, litters were sorted into six different categories (plastic, rubber, metal, wood, glass and natural fiber). Thereafter, all marine litter were counted and weighed separately to the nearest 0.5 g. The results shows that the maximums of marine litter densities in the seafloor of the trawling fishing areas along Algerian coast are, respectively, 1996 item/km2 in 2016, 5164 item/km2 in 2019, 2173 item/km2 in 2021 and 7319 item/km2 in 2022. Thus, the plastic is the most abundant litter, it represent, respectively, 46% of marine litter in 2016, 67% in 2019, 69% in 2021 and 74% in 2022. Regarding the weight of the marine litter, it varies between 0.00 and 103 kg in 2016, between 0.04 and 81 kg in 2019, between 0.00 and 68 Kg in 2021 and between 0.00 and 318 kg in 2022. Thus, the maximum rate of marine litter compared to the total catch approximate, respectively, 66% in 2016, 90% in 2019, 65% in 2021 and 91% in 2022. In fact, the average loss in catch is estimated, respectively, at 7.4% in 2016, 8.4% in 2019, 5.7% in 2021 and 6.4% in 2022. However, the bathymetric and geographical variability had a significant impact on both density and weight of marine litter. Marine litter monitoring program is necessary for offering more solution proposals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composition" title="composition">composition</a>, <a href="https://publications.waset.org/abstracts/search?q=distribution" title=" distribution"> distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=seabed" title=" seabed"> seabed</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20litter" title=" marine litter"> marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=algerian%20coast" title=" algerian coast"> algerian coast</a> </p> <a href="https://publications.waset.org/abstracts/176734/composition-and-distribution-of-seabed-marine-litter-along-algerian-coast-western-mediterranean" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176734.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">68</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1264</span> Marine Litter Dispersion in the Southern Shores of the Caspian Sea (Case Study: Mazandaran Province)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Jamshidi">Siamak Jamshidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the major environmental problems in the southern coasts of the Caspian Sea is that the marine and coastal debris is being deposited and accumulated due to industrial, urban and tourism activities. Study, sampling and analysis on the type, size, amount and origin of human-made (anthropogenic) waste in the coastal areas of this sea can be very effective in implementing management, cultural and informative programs to reduce marine environmental pollutants. Investigation on marine litter distribution under impact of seawater dynamics was performed for the first time in this research. The rate of entry and distribution of marine and coastal pollutants and wastes, which are mainly of urban, tourist and hospital origin, has multiplied on the southern shore of the Caspian Sea in the last decade. According to the results, the two most important sources of hospital waste in the coastal areas are Tonekabon and Mahmoudabad. In this case, the effect of dynamic parameters of seawater such as flow (with speeds of up to about 1 m/s) and waves, as well as the flow of rivers leading to the shoreline are also influential factors in the distribution of marine litter in the region. Marine litters in the southern coastal region were transported from west to east by the shallow waters of the southern Caspian Sea. In other words, the marine debris density has been observed more in the eastern part. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=southern%20shelf" title="southern shelf">southern shelf</a>, <a href="https://publications.waset.org/abstracts/search?q=coastal%20oceanography" title=" coastal oceanography"> coastal oceanography</a>, <a href="https://publications.waset.org/abstracts/search?q=seawater%20flow" title=" seawater flow"> seawater flow</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20structure" title=" vertical structure"> vertical structure</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20environment" title=" marine environment"> marine environment</a> </p> <a href="https://publications.waset.org/abstracts/173438/marine-litter-dispersion-in-the-southern-shores-of-the-caspian-sea-case-study-mazandaran-province" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173438.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1263</span> Effects of Nitrogen Addition on Litter Decomposition and Nutrient Release in a Temperate Grassland in Northern China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lili%20Yang">Lili Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jirui%20Gong"> Jirui Gong</a>, <a href="https://publications.waset.org/abstracts/search?q=Qinpu%20Luo"> Qinpu Luo</a>, <a href="https://publications.waset.org/abstracts/search?q=Min%20%20Liu"> Min Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Bo%20%20Yang"> Bo Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Zihe%20Zhang"> Zihe Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Anthropogenic activities have increased nitrogen (N) inputs to grassland ecosystems. Knowledge of the impact of N addition on litter decomposition is critical to understand ecosystem carbon cycling and their responses to global climate change. The aim of this study was to investigate the effects of N addition and litter types on litter decomposition of a semi-arid temperate grassland during growing and non-growing seasons in Inner Mongolia, northern China, and to identify the relation between litter decomposition and C: N: P stoichiometry in the litter-soil continuum. Six levels of N addition were conducted: CK, N1 (0 g Nm−2 yr−1), N2 (2 g Nm−2 yr−1), N3 (5 g Nm−2 yr−1), N4 (10 g Nm−2 yr−1) and N5 (25 g Nm−2 yr−1). Litter decomposition rates and nutrient release differed greatly among N addition gradients and litter types. N addition promoted litter decomposition of S. grandis, but exhibited no significant influence on L. chinensis litter, indicating that the S. grandis litter decomposition was more sensitive to N addition than L. chinensis. The critical threshold for N addition to promote mixed litter decomposition was 10 -25g Nm−2 yr−1. N addition altered the balance of C: N: P stoichiometry between litter, soil and microbial biomass. During decomposition progress, the L. chinensis litter N: P was higher in N2-N4 plots compared to CK, while the S. grandis litter C: N was lower in N3 and N4 plots, indicating that litter N or P content doesn’t satisfy microbial decomposers with the increasing of N addition. As a result, S. grandis litter exhibited net N immobilization, while L. chinensis litter net P immobilization. Mixed litter C: N: P stoichiometry satisfied the demand of microbial decomposers, showed net mineralization during the decomposition process. With the increasing N deposition in the future, mixed litter would potentially promote C and nutrient cycling in grassland ecosystem by increasing litter decomposition and nutrient release. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=C%3A%20N%3A%20P%20stoichiometry" title="C: N: P stoichiometry">C: N: P stoichiometry</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20decomposition" title=" litter decomposition"> litter decomposition</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20addition" title=" nitrogen addition"> nitrogen addition</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrient%20release" title=" nutrient release"> nutrient release</a> </p> <a href="https://publications.waset.org/abstracts/71375/effects-of-nitrogen-addition-on-litter-decomposition-and-nutrient-release-in-a-temperate-grassland-in-northern-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71375.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">484</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1262</span> Lagrangian Approach for Modeling Marine Litter Transport</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sarra%20Zaied">Sarra Zaied</a>, <a href="https://publications.waset.org/abstracts/search?q=Arthur%20Bonpain"> Arthur Bonpain</a>, <a href="https://publications.waset.org/abstracts/search?q=Pierre%20Yves%20Fravallo"> Pierre Yves Fravallo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The permanent supply of marine litter implies their accumulation in the oceans, which causes the presence of more compact wastes layers. Their Spatio-temporal distribution is never homogeneous and depends mainly on the hydrodynamic characteristics of the environment and the size and location of the wastes. As part of optimizing collect of marine plastic wastes, it is important to measure and monitor their evolution over time. For this, many research studies have been dedicated to describing the wastes behavior in order to identify their accumulation in oceans areas. Several models are therefore developed to understand the mechanisms that allow the accumulation and the displacements of marine litter. These models are able to accurately simulate the drift of wastes to study their behavior and stranding. However, these works aim to study the wastes behavior over a long period of time and not at the time of waste collection. This work investigates the transport of floating marine litter (FML) to provide basic information that can help in optimizing wastes collection by proposing a model for predicting their behavior during collection. The proposed study is based on a Lagrangian modeling approach that uses the main factors influencing the dynamics of the waste. The performance of the proposed method was assessed on real data collected from the Copernicus Marine Environment Monitoring Service (CMEMS). Evaluation results in the Java Sea (Indonesia) prove that the proposed model can effectively predict the position and the velocity of marine wastes during collection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=floating%20marine%20litter" title="floating marine litter">floating marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=lagrangian%20transport" title=" lagrangian transport"> lagrangian transport</a>, <a href="https://publications.waset.org/abstracts/search?q=particle-tracking%20model" title=" particle-tracking model"> particle-tracking model</a>, <a href="https://publications.waset.org/abstracts/search?q=wastes%20drift" title=" wastes drift"> wastes drift</a> </p> <a href="https://publications.waset.org/abstracts/139690/lagrangian-approach-for-modeling-marine-litter-transport" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139690.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">191</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1261</span> Examining Litter Distributions in Lethbridge, Alberta, Canada, Using Citizen Science and GIS Methods: OpenLitterMap App and Story Maps</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tali%20Neta">Tali Neta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Humans’ impact on the environment has been incredibly brutal, with enormous plastic- and other pollutants (e.g., cigarette buds, paper cups, tires) worldwide. On land, litter costs taxpayers a fortune. Most of the litter pollution comes from the land, yet it is one of the greatest hazards to marine environments. Due to spatial and temporal limitations, previous litter data covered very small areas. Currently, smartphones can be used to obtain information on various pollutants (through citizen science), and they can greatly assist in acknowledging and mitigating the environmental impact of litter. Litter app data, such as the Litterati, are available for study through a global map only; these data are not available for download, and it is not clear whether irrelevant hashtags have been eliminated. Instagram and Twitter open-source geospatial data are available for download; however, these are considered inaccurate, computationally challenging, and impossible to quantify. Therefore, the resulting data are of poor quality. Other downloadable geospatial data (e.g., Marine Debris Tracker8 and Clean Swell10) are focused on marine- rather than terrestrial litter. Therefore, accurate terrestrial geospatial documentation of litter distribution is needed to improve environmental awareness. The current research employed citizen science to examine litter distribution in Lethbridge, Alberta, Canada, using the OpenLitterMap (OLM) app. The OLM app is an application used to track litter worldwide, and it can mark litter locations through photo georeferencing, which can be presented through GIS-designed maps. The OLM app provides open-source data that can be downloaded. It also offers information on various litter types and “hot-spots” areas where litter accumulates. In this study, Lethbridge College students collected litter data with the OLM app. The students produced GIS Story Maps (interactive web GIS illustrations) and presented these to school children to improve awareness of litter's impact on environmental health. Preliminary results indicate that towards the Lethbridge Coulees’ (valleys) East edges, the amount of litter significantly increased due to shrubs’ presence, that acted as litter catches. As wind generally travels from west to east in Lethbridge, litter in West-Lethbridge often finds its way down in the east part of the coulees. The students’ documented various litter types, while the majority (75%) included plastic and paper food packaging. The students also found metal wires, broken glass, plastic bottles, golf balls, and tires. Presentations of the Story Maps to school children had a significant impact, as the children voluntarily collected litter during school recess, and they were looking into solutions to reduce litter. Further litter distribution documentation through Citizen Science is needed to improve public awareness. Additionally, future research will be focused on Drone imagery of highly concentrated litter areas. Finally, a time series analysis of litter distribution will help us determine whether public education through Citizen Science and Story Maps can assist in reducing litter and reaching a cleaner and healthier environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=citizen%20science" title="citizen science">citizen science</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20pollution" title=" litter pollution"> litter pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=Open%20Litter%20Map" title=" Open Litter Map"> Open Litter Map</a>, <a href="https://publications.waset.org/abstracts/search?q=GIS%20Story%20Map" title=" GIS Story Map"> GIS Story Map</a> </p> <a href="https://publications.waset.org/abstracts/163839/examining-litter-distributions-in-lethbridge-alberta-canada-using-citizen-science-and-gis-methods-openlittermap-app-and-story-maps" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163839.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1260</span> Microplastics in Fish from Grenada, West Indies: Problems and Opportunities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michelle%20E.%20Taylor">Michelle E. Taylor</a>, <a href="https://publications.waset.org/abstracts/search?q=Clare%20E.%20Morrall"> Clare E. Morrall</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Microplastics are small particles produced for industrial purposes or formed by breakdown of anthropogenic debris. Caribbean nations import large quantities of plastic products. The Caribbean region is vulnerable to natural disasters and Climate Change is predicted to bring multiple additional challenges to island nations. Microplastics have been found in an array of marine environments and in a diversity of marine species. Occurrence of microplastic in the intestinal tracts of marine fish is a concern to human and ecosystem health as pollutants and pathogens can associate with plastics. Studies have shown that the incidence of microplastics in marine fish varies with species and location. Prevalence of microplastics (≤ 5 mm) in fish species from Grenadian waters (representing pelagic, semi-pelagic and demersal lifestyles) harvested for human consumption have been investigated via gut analysis. Harvested tissue was digested in 10% KOH and particles retained on a 0.177 mm sieve were examined. Microplastics identified have been classified according to type, colour and size. Over 97% of fish examined thus far (n=34) contained microplastics. Current and future work includes examining the invasive Lionfish (Pterois spp.) for microplastics, investigating marine invertebrate species as well as examining environmental sources of microplastics (i.e. rivers, coastal waters and sand). Owing to concerns of pollutant accumulation on microplastics and potential migration into organismal tissues, we plan to analyse fish tissue for mercury and other persistent pollutants. Despite having ~110,000 inhabitants, the island nation of Grenada imported approximately 33 million plastic bottles in 2013, of which it is estimated less than 5% were recycled. Over 30% of the imported bottles were ‘unmanaged’, and as such are potential litter/marine debris. A revised Litter Abatement Act passed into law in Grenada in 2015, but little enforcement of the law is evident to date. A local Non-governmental organization (NGO) ‘The Grenada Green Group’ (G3) is focused on reducing litter in Grenada through lobbying government to implement the revised act and running sessions in schools, community groups and on local media and social media to raise awareness of the problems associated with plastics. A local private company has indicated willingness to support an Anti-Litter Campaign in 2018 and local awareness of the need for a reduction of single use plastic use and litter seems to be high. The Government of Grenada have called for a Sustainable Waste Management Strategy and a ban on both Styrofoam and plastic grocery bags are among recommendations recently submitted. A Styrofoam ban will be in place at the St. George’s University campus from January 1st, 2018 and many local businesses have already voluntarily moved away from Styrofoam. Our findings underscore the importance of continuing investigations into microplastics in marine life; this will contribute to understanding the associated health risks. Furthermore, our findings support action to mitigate the volume of plastics entering the world’s oceans. We hope that Grenada’s future will involve a lot less plastic. This research was supported by the Caribbean Node of the Global Partnership on Marine Litter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Caribbean" title="Caribbean">Caribbean</a>, <a href="https://publications.waset.org/abstracts/search?q=microplastics" title=" microplastics"> microplastics</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution" title=" pollution"> pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20island%20developing%20nation" title=" small island developing nation"> small island developing nation</a> </p> <a href="https://publications.waset.org/abstracts/85482/microplastics-in-fish-from-grenada-west-indies-problems-and-opportunities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85482.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">211</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1259</span> Optimization of Marine Waste Collection Considering Dynamic Transport and Ship’s Wake Impact</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guillaume%20Richard">Guillaume Richard</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarra%20Zaied"> Sarra Zaied</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine waste quantities increase more and more, 5 million tons of plastic waste enter the ocean every year. Their spatiotemporal distribution is never homogeneous and depends mainly on the hydrodynamic characteristics of the environment, as well as the size and location of the waste. As part of optimizing collect of marine plastic wastes, it is important to measure and monitor their evolution over time. In this context, diverse studies have been dedicated to describing waste behavior in order to identify its accumulation in ocean areas. None of the existing tools which track objects at sea had the objective of tracking down a slick of waste. Moreover, the applications related to marine waste are in the minority compared to rescue applications or oil slicks tracking applications. These approaches are able to accurately simulate an object's behavior over time but not during the collection mission of a waste sheet. This paper presents numerical modeling of a boat’s wake impact on the floating marine waste behavior during a collection mission. The aim is to predict the trajectory of a marine waste slick to optimize its collection using meteorological data of ocean currents, wind, and possibly waves. We have made the choice to use Ocean Parcels which is a Python library suitable for trajectoring particles in the ocean. The modeling results showed the important role of advection and diffusion processes in the spatiotemporal distribution of floating plastic litter. The performance of the proposed method was evaluated on real data collected from the Copernicus Marine Environment Monitoring Service (CMEMS). The results of the evaluation in Cape of Good Hope (South Africa) prove that the proposed approach can effectively predict the position and velocity of marine litter during collection, which allowed for optimizing time and more than $90\%$ of the amount of collected waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=marine%20litter" title="marine litter">marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=advection-diffusion%20equation" title=" advection-diffusion equation"> advection-diffusion equation</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20current" title=" sea current"> sea current</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20model" title=" numerical model"> numerical model</a> </p> <a href="https://publications.waset.org/abstracts/170765/optimization-of-marine-waste-collection-considering-dynamic-transport-and-ships-wake-impact" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170765.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">87</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1258</span> Assessment of the Root Causes of Marine Debris Problem in Lagos State</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chibuzo%20Okoye%20Daniels">Chibuzo Okoye Daniels</a>, <a href="https://publications.waset.org/abstracts/search?q=Gillian%20Glegg"> Gillian Glegg</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynda%20Rodwell"> Lynda Rodwell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The continuously growing quantity of very slow degrading litter deliberately discarded into the coastal waters around Lagos as marine debris is obvious. What is not known is how to tackle this problem to reduce its prevalence and impact on the environment, economy and community. To identify ways of tackling the marine debris problem two case study areas (Ikoyi and Victoria Islands of Lagos State) were used to assess the root causes, the threat posed by marine debris in the coastal waters around Lagos and the efficacy of current instruments, programmes and initiatives that address marine debris in the study areas. The following methods were used: (1) Self-completed questionnaires for households and businesses within the study areas; (2) Semi-structured interviews with key stakeholders; (3) Observational studies of waste management from collection to disposal and waste management facilities for waste originating from land and maritime sources; (4) Beach surveys and marine debris surveys on shorelines and ports; and (5) Fishing for marine debris. Results of this study identified the following root causes: (1) Indiscriminate human activities and behaviors, and lack of awareness on the part of the main stakeholders and the public of the potential consequences of their actions; (2) Poor solid waste management practices; (3) Lack of strict legal frameworks addressing waste and marine debris problem; and (4) Disposal of non-degradable wastes into domestic sewer system and open streets drains. To effectively tackle marine debris problem in the study areas, adequate, appropriate and cost effective solutions to the above mentioned root causes needs to be identified and effectively transferred for implementation in the study areas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=marine%20debris%20problem" title="marine debris problem">marine debris problem</a>, <a href="https://publications.waset.org/abstracts/search?q=Lagos%20state" title=" Lagos state"> Lagos state</a>, <a href="https://publications.waset.org/abstracts/search?q=litter" title=" litter"> litter</a>, <a href="https://publications.waset.org/abstracts/search?q=coastal%20waters" title=" coastal waters"> coastal waters</a> </p> <a href="https://publications.waset.org/abstracts/10082/assessment-of-the-root-causes-of-marine-debris-problem-in-lagos-state" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10082.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">379</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1257</span> Investigation of the Properties of Biochar Obtained by Dry and Wet Torrefaction in a Fixed and in a Fluidized Bed</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natalia%20Muratova">Natalia Muratova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20Klimov"> Dmitry Klimov</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafail%20Isemin"> Rafail Isemin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20Kuzmin"> Sergey Kuzmin</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20%20Mikhalev"> Aleksandr Mikhalev</a>, <a href="https://publications.waset.org/abstracts/search?q=Oleg%20%20Milovanov"> Oleg Milovanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We investigated the processing of poultry litter into biochar using dry torrefaction methods (DT) in a fixed and fluidized bed of quartz sand blown with nitrogen, as well as wet torrefaction (WT) in a fluidized bed in a medium of water steam at a temperature of 300 °C. Torrefaction technology affects the duration of the heat treatment process and the characteristics of the biochar: the process of separating CO₂, CO, H₂ and CH₄ from a portion of fresh poultry litter during torrefaction in a fixed bed is completed after 2400 seconds, but in a fluidized bed — after 480 seconds. During WT in a fluidized bed of quartz sand, this process ends in 840 seconds after loading a portion of fresh litter, but in a fluidized bed of litter particles previously subjected to torrefaction, the process ends in 350 - 450 seconds. In terms of the ratio between (H/C) and (O/C), the litter obtained after DT and WT treatment corresponds to lignite. WT in a fluidized bed allows one to obtain biochar, in which the specific pore area is two times larger than the specific pore area of biochar obtained after DT in a fluidized bed. Biochar, obtained as a result of the poultry litter treatment in a fluidized bed using DT or WT method, is recommended to be used not only as a biofuel but also as an adsorbent or the soil fertilizer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biochar" title="biochar">biochar</a>, <a href="https://publications.waset.org/abstracts/search?q=poultry%20litter" title=" poultry litter"> poultry litter</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20and%20wet%20torrefaction" title=" dry and wet torrefaction"> dry and wet torrefaction</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed%20bed" title=" fixed bed"> fixed bed</a>, <a href="https://publications.waset.org/abstracts/search?q=fluidized%20bed" title=" fluidized bed"> fluidized bed</a> </p> <a href="https://publications.waset.org/abstracts/114502/investigation-of-the-properties-of-biochar-obtained-by-dry-and-wet-torrefaction-in-a-fixed-and-in-a-fluidized-bed" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">157</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1256</span> Influence of Litter Materials on Organs' Relative Weights, Meat Quality, Breast and Footpad Dermatitis of Broiler Chickens under Hot Humid Climate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oyegunle%20Oke">Oyegunle Oke</a>, <a href="https://publications.waset.org/abstracts/search?q=James%20Daramola"> James Daramola</a>, <a href="https://publications.waset.org/abstracts/search?q=Oluwaseun%20Iyasere"> Oluwaseun Iyasere</a>, <a href="https://publications.waset.org/abstracts/search?q=Babatunde%20Modinat"> Babatunde Modinat </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wood shavings are the most common materials used as litter in commercial broiler production in many areas in Nigeria. A study was conducted to determine the effects of litter materials on organ weights, meat quality, footpad, and breast dermatitis of broiler chickens under hot humid climate. One hundred and eighty broiler chicks of marshal strains were randomly assigned to three treatments of wood shavings, maize cobs and chopped Panicum maximum as litter materials replicated four (4) times with 15 birds each in a completely randomized design. Data were collected on the relative body weights, meat quality, breast and foot pad dermatitis. The result showed that birds reared on chopped Panicum maximum had higher relative weight on the liver than those reared on wood shavings and maize cobs. Spleen and bursa of Fabricius were not significantly affected by litter materials. There was no significant effect of litter materials on meat quality. The relative weight of thigh of birds reared on chopped Panicum maximum, and Maize cobs were similar but higher than those reared on Wood shavings. Fresh breast weight of birds reared on wood shavings was higher than those reared on chopped Panicum maximum and maize cobs. It was concluded that chopped Panicum maximum could serve as a replacement for wood shavings as a litter material for broiler chickens. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chickens" title="chickens">chickens</a>, <a href="https://publications.waset.org/abstracts/search?q=dermatitis" title=" dermatitis"> dermatitis</a>, <a href="https://publications.waset.org/abstracts/search?q=organs" title=" organs"> organs</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20materials" title=" litter materials"> litter materials</a> </p> <a href="https://publications.waset.org/abstracts/71809/influence-of-litter-materials-on-organs-relative-weights-meat-quality-breast-and-footpad-dermatitis-of-broiler-chickens-under-hot-humid-climate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71809.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">354</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1255</span> Seasonal and Monthly Field Soil Respiration Rate and Litter Fall Amounts of Kasuga-Yama Hill Primeval Forest</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ayuko%20Itsuki">Ayuko Itsuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Sachiyo%20Aburatani"> Sachiyo Aburatani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The seasonal (January, April, July and October) and monthly soil respiration rate and the monthly litter fall amounts were examined in the laurel-leaved (B_B-1) and Cryptomeria japonica (B_B-2 and PW) forests in the Kasugayama Hill Primeval Forest (Nara, Japan). The change of the seasonal soil respiration rate corresponded to that of the soil temperature. The soil respiration rate was higher in October when fresh organic matter was supplied in the forest floor than in April in spite of the same temperature. The seasonal soil respiration rate of B_B-1 was higher than that of B_B-2, which corresponded to more numbers of bacteria and fungi counted by the dilution plate method and by the direct count method by microscopy in B_B-1 than that of B_B-2. The seasonal soil respiration rate of B_B-2 was higher than that of PW, which corresponded to more microbial biomass by the direct count method by microscopy in B_B-2 than that of PW. The correlation coefficient with the seasonal soil respiration and the soil temperature was higher than that of the monthly soil respiration. The soil respiration carbon was more than the litter fall carbon. It was suggested that the soil respiration included in the carbon dioxide which was emitted by the plant root and soil animal, or that the litter fall supplied to the forest floor included in animal and plant litter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=field%20soil%20respiration%20rate" title="field soil respiration rate">field soil respiration rate</a>, <a href="https://publications.waset.org/abstracts/search?q=forest%20soil" title=" forest soil"> forest soil</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20fall" title=" litter fall"> litter fall</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralization%20rate" title=" mineralization rate"> mineralization rate</a> </p> <a href="https://publications.waset.org/abstracts/49812/seasonal-and-monthly-field-soil-respiration-rate-and-litter-fall-amounts-of-kasuga-yama-hill-primeval-forest" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49812.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1254</span> Effects of Small Impoundments on Leaf Litter Decomposition and Methane Derived Carbon in the Benthic Foodweb in Streams</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=John%20Gichimu%20Mbaka">John Gichimu Mbaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Helmrich%20Martin%20von%20Baumbach"> Jan Helmrich Martin von Baumbach</a>, <a href="https://publications.waset.org/abstracts/search?q=Celia%20Somlai"> Celia Somlai</a>, <a href="https://publications.waset.org/abstracts/search?q=Denis%20K%C3%B6pfer"> Denis Köpfer</a>, <a href="https://publications.waset.org/abstracts/search?q=Andreas%20Maeck"> Andreas Maeck</a>, <a href="https://publications.waset.org/abstracts/search?q=Andreas%20Lorke"> Andreas Lorke</a>, <a href="https://publications.waset.org/abstracts/search?q=Ralf%20Sch%C3%A4fer"> Ralf Schäfer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Leaf litter decomposition is an important process providing energy to biotic communities. Additionally, methane gas (CH4) has been identified as an important alternative source of carbon and energy in some freshwater food webs.Flow regulation and dams can strongly alter freshwater ecosystems, but little is known about the effect of small impoundments on leaf litter decomposition and methane derived carbon in streams. In this study, we tested the effect of small water storage impoundments on leaf litter decomposition rates and methane derived carbon. Leaf litter decomposition rates were assessed by comparing treatment sites located close to nine impoundments (Rheinland Pfalz state, Germany) and reference sites located far away from the impoundments.CH4 concentrations were measured in eleven impoundments and correlated with the δ13C values of two subfamilies of chironomid larvae (i.e. Chironomini and Tanypodinae). Leaf litter break down rates were significantly lower in study sites located immediately above the impoundments, especially associated with a reduction in the abundance of shredders. Chironomini larvae had the lower mean δ13C values (‒29.2 to ‒25.5 ‰), than Tanypodinae larvae (‒26.9 to ‒25.3 ‰).No significant relationships were established between CH4 concentrations and δ13C values of chironomids (p> 0.05).Mean δ13C values of chironomid larvae (mean: ‒26.8‰, range: ‒ 29.2‰ to ‒ 25.3‰) were similar to those of sedimentary organic matter (SOM) (mean: ‒28.4‰, range: ‒ 29.3‰ to ‒ 27.1‰) and tree leaf litter (mean: ‒29.8 ‰, range: ‒ 30.5‰ to ‒ 29.1‰). In conclusion, this study demonstrates that small impoundments may have a negative effect on leaf litter decomposition in forest streams and that CH4 has limited influence on the benthic food web in stream impoundments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=river%20functioning" title="river functioning">river functioning</a>, <a href="https://publications.waset.org/abstracts/search?q=chironomids" title=" chironomids"> chironomids</a>, <a href="https://publications.waset.org/abstracts/search?q=Alder%20tree" title=" Alder tree"> Alder tree</a>, <a href="https://publications.waset.org/abstracts/search?q=stable%20isotopes" title=" stable isotopes"> stable isotopes</a>, <a href="https://publications.waset.org/abstracts/search?q=methane%20oxidation" title=" methane oxidation"> methane oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=shredder" title=" shredder"> shredder</a> </p> <a href="https://publications.waset.org/abstracts/18714/effects-of-small-impoundments-on-leaf-litter-decomposition-and-methane-derived-carbon-in-the-benthic-foodweb-in-streams" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18714.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">734</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1253</span> Variation of Litter Chemistry under Intensified Drought: Consequences on Flammability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20Ormeno">E. Ormeno</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Gutigny"> C. Gutigny</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Ruffault"> J. Ruffault</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Madrigal"> J. Madrigal</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Guijarro"> M. Guijarro</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Lecareux"> C. Lecareux</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Ballini"> C. Ballini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mediterranean plant species feature numerous metabolic and morpho-physiological responses crucial to survive under both, typical Mediterranean drought conditions and future aggravated drought expected by climate change. Whether these adaptive responses will, in turn, increase the ecosystem perturbation in terms of fire hazard, is an issue that needs to be addressed. The aim of this study was to test whether recurrent and aggravated drought in the Mediterranean area favors the accumulation of waxes in leaf litter, with an eventual increase of litter flammability. The study was conducted in 2017 in a garrigue in Southern France dominated by Quercus coccifera, where two drought treatments were used: a treatment with recurrent aggravated drought consisting of ten rain exclusion structures which withdraw part of the annual precipitation since January 2012, and a natural drought treatment where Q. coccifera stands are free of such structures and thus grow under natural precipitation. Waxes were extracted with organic solvent and analyzed by GC-MS and litter flammability was assessed through measurements of the ignition delay, flame residence time and flame intensity (flame height) using an epiradiator as well as the heat of combustion using an oxygen bomb calorimeter. Results show that after 5 years of rain restriction, wax content in the cuticle of leaf litter increases significantly compared to shrubs growing under natural precipitation, in accordance with the theoretical knowledge which expects increases of cuticle waxes in green leaves in order to limit water evapotranspiration. Wax concentrations were also linearly and positively correlated to litter flammability, a correlation that lies on the high flammability own to the long-chain alkanes (C25-C31) found in leaf litter waxes. This innovative investigation shows that climate change is likely to favor ecosystem fire hazard through accumulation of highly flammable waxes in litter. It also adds valuable information about the types of metabolites that are associated with increasing litter flammability, since so far, within the leaf metabolic profile, only terpene-like compounds had been related to plant flammability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cuticular%20waxes" title="cuticular waxes">cuticular waxes</a>, <a href="https://publications.waset.org/abstracts/search?q=drought" title=" drought"> drought</a>, <a href="https://publications.waset.org/abstracts/search?q=flammability" title=" flammability"> flammability</a>, <a href="https://publications.waset.org/abstracts/search?q=litter" title=" litter"> litter</a> </p> <a href="https://publications.waset.org/abstracts/89180/variation-of-litter-chemistry-under-intensified-drought-consequences-on-flammability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89180.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">171</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1252</span> Preliminary Result on the Impact of Anthropogenic Noise on Understory Bird Population in Primary Forest of Gaya Island</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emily%20A.%20Gilbert">Emily A. Gilbert</a>, <a href="https://publications.waset.org/abstracts/search?q=Jephte%20Sompud"> Jephte Sompud</a>, <a href="https://publications.waset.org/abstracts/search?q=Andy%20R.%20Mojiol"> Andy R. Mojiol</a>, <a href="https://publications.waset.org/abstracts/search?q=Cynthia%20B.%20Sompud"> Cynthia B. Sompud</a>, <a href="https://publications.waset.org/abstracts/search?q=Alim%20Biun"> Alim Biun </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gaya Island of Sabah is known for its wildlife and marine biodiversity. It has marks itself as one of the hot destinations of tourists from all around the world. Gaya Island tourism activities have contributed to Sabah’s economy revenue with the high number of tourists visiting the island. However, it has led to the increased anthropogenic noise derived from tourism activities. This may greatly interfere with the animals such as understory birds that rely on acoustic signals as a tool for communication. Many studies in other parts of the regions reveal that anthropogenic noise does decrease species richness of avian community. However, in Malaysia, published research regarding the impact of anthropogenic noise on the understory birds is still very lacking. This study was conducted in order to fill up this gap. This study aims to investigate the anthropogenic noise’s impact towards understory bird population. There were three sites within the Primary forest of Gaya Island that were chosen to sample the level of anthropogenic noise in relation to the understory bird population. Noise mapping method was used to measure the anthropogenic noise level and identify the zone with high anthropogenic noise level (> 60dB) and zone with low anthropogenic noise level (< 60dB) based on the standard threshold of noise level. The methods that were used for this study was solely mist netting and ring banding. This method was chosen as it can determine the diversity of the understory bird population in Gaya Island. The preliminary study was conducted from 15th to 26th April and 5th to 10th May 2015 whereby there were 2 mist nets that were set up at each of the zones within the selected site. The data was analyzed by using the descriptive analysis, presence and absence analysis, diversity indices and diversity t-test. Meanwhile, PAST software was used to analyze the obtain data. The results from this study present a total of 60 individuals that consisted of 12 species from 7 families of understory birds were recorded in three of the sites in Gaya Island. The Shannon-Wiener index shows that diversity of species in high anthropogenic noise zone and low anthropogenic noise zone were 1.573 and 2.009, respectively. However, the statistical analysis shows that there was no significant difference between these zones. Nevertheless, based on the presence and absence analysis, it shows that the species at the low anthropogenic noise zone was higher as compared to the high anthropogenic noise zone. Thus, this result indicates that there is an impact of anthropogenic noise on the population diversity of understory birds. There is still an urgent need to conduct an in-depth study by increasing the sample size in the selected sites in order to fully understand the impact of anthropogenic noise towards the understory birds population so that it can then be in cooperated into the wildlife management for a sustainable environment in Gaya Island. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anthropogenic%20noise" title="anthropogenic noise">anthropogenic noise</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiversity" title=" biodiversity"> biodiversity</a>, <a href="https://publications.waset.org/abstracts/search?q=Gaya%20Island" title=" Gaya Island"> Gaya Island</a>, <a href="https://publications.waset.org/abstracts/search?q=understory%20bird" title=" understory bird"> understory bird</a> </p> <a href="https://publications.waset.org/abstracts/33183/preliminary-result-on-the-impact-of-anthropogenic-noise-on-understory-bird-population-in-primary-forest-of-gaya-island" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33183.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1251</span> Preliminary Results on Marine Debris Classification in The Island of Mykonos (Greece) via Coastal and Underwater Clean up over 2016-20: A Successful Case of Recycling Plastics into Useful Daily Items</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eleni%20Akritopoulou">Eleni Akritopoulou</a>, <a href="https://publications.waset.org/abstracts/search?q=Katerina%20Topouzoglou"> Katerina Topouzoglou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The last 20 years marine debris has been identified as one of the main marine pollution sources caused by anthropogenic activities. Plastics has reached the farthest marine areas of the planet affecting all marine trophic levels including the, recently discovered, amphipoda Eurythenes plasticus inhabiting Mariana Trench to large cetaceans, marine reptiles and sea birds causing immunodeficiency disorders, deteriorating health and death overtime. For the time period 2016-20, in the framework of the national initiative ‘Keep Aegean Blue”, All for Blue team has been collecting marine debris (coastline and underwater) following a modified in situ MEDSEALITTER monitoring protocol from eight Greek islands. After collection, marine debris was weighted, sorted and categorised according to material; plastic (PL), glass (G), metal (M), wood (W), rubber (R), cloth (CL), paper (P), mixed (MX). The goal of the project included the documentation of marine debris sources, human trends, waste management and public marine environmental awareness. Waste management was focused on plastics recycling and utilisation into daily useful products. This research is focused on the island of Mykonos due to its continuous touristic activity and lack of scientific information. In overall, a field work area of 1.832.856 m2 was cleaned up yielding 5092 kg of marine debris. The preliminary results indicated PL as main source of marine debris (62,8%) followed by M (15,5%), GL (13,2%) and MX (2,8%). Main items found were fishing tools (lines, nets), disposable cutlery, cups and straws, cigarette butts, flip flops and other items like plastic boat compartments. In collaboration with a local company for plastic management and the Circular Economy and Eco Innovation Institute (Sweden), all plastic debris was recycled. Granulation process was applied transforming plastic into building materials used for refugees’ houses, litter bins bought by municipalities and schools and, other items like shower components. In terms of volunteering and attendance in public awareness seminars, there was a raise of interest by 63% from different age ranges and professions. Regardless, the research being fairly new for Mykonos island and logistics issues potentially affected systemic sampling, it appeared that plastic debris is the main littering source attributed, possibly to the intense touristic activity of the island all year around. However, marine environmental awareness activities were pointed out to be an effective tool in forming public perception against marine debris and, alter the daily habits of local society. Since the beginning of this project, three new local environmental teams were formed against marine pollution supported by the local authorities and stakeholders. The continuous need and request for the production of items made by recycled marine debris appeared to be beneficial socio-economically to the local community and actions are taken to expand the project nationally. Finally, as an ongoing project and whilst, new scientific information is collected, further funding and research is needed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Greece" title="Greece">Greece</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20debris" title=" marine debris"> marine debris</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20environmental%20awareness" title=" marine environmental awareness"> marine environmental awareness</a>, <a href="https://publications.waset.org/abstracts/search?q=Mykonos%20island" title=" Mykonos island"> Mykonos island</a>, <a href="https://publications.waset.org/abstracts/search?q=plastics%20debris" title=" plastics debris"> plastics debris</a>, <a href="https://publications.waset.org/abstracts/search?q=plastic%20granulation" title=" plastic granulation"> plastic granulation</a>, <a href="https://publications.waset.org/abstracts/search?q=recycled%20plastic" title=" recycled plastic"> recycled plastic</a>, <a href="https://publications.waset.org/abstracts/search?q=tourism" title=" tourism"> tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management" title=" waste management"> waste management</a> </p> <a href="https://publications.waset.org/abstracts/127888/preliminary-results-on-marine-debris-classification-in-the-island-of-mykonos-greece-via-coastal-and-underwater-clean-up-over-2016-20-a-successful-case-of-recycling-plastics-into-useful-daily-items" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127888.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">110</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1250</span> Marine Environmental Peace-Building Initiatives: Factors of Success and Failure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yael%20Teff-Seker">Yael Teff-Seker</a> </p> <p class="card-text"><strong>Abstract:</strong></p> More often than not, ecosystems do not follow anthropogenic political borders. Thus, transboundary environmental protection or rehabilitation initiatives can be beneficial and at times even vital for supporting healthy ecosystems. Marine areas demand unique considerations and challenges for such initiatives, as maritime borders tend to be less defined, less fortified and less visible. In areas of recent conflict, cross-border environmental initiatives can also improve relations between states and promote peace-building efforts, in addition to their environmental benefits. The current study reviews the current literature on transboundary marine environmental protection initiatives that take place in these areas and focuses on joint initiatives in Israel-Jordan and Croatia-Slovenia. In addition to factors described in the literature such as funding and third-party involvement, findings suggest that the peripheral location of marine environmental initiatives can be beneficial for the success of such initiatives, as well as facilitating border crossing and the extent to which such initiatives advance other governmental goals. A sense of urgency, environmental or other, has also been found to be highly relevant to project success. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental%20cooperation" title="environmental cooperation">environmental cooperation</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20peacebuilding" title=" environmental peacebuilding"> environmental peacebuilding</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20environment" title=" marine environment"> marine environment</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20conflict" title=" environmental conflict"> environmental conflict</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20management" title=" environmental management"> environmental management</a> </p> <a href="https://publications.waset.org/abstracts/104413/marine-environmental-peace-building-initiatives-factors-of-success-and-failure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104413.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">179</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1249</span> Using Environmental Life Cycle Assessment to Design Sustainable Packaging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Timothy%20Francis%20Grant">Timothy Francis Grant</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are conflicting purposes at play with the design of sustainable packaging which include material reduction, recycling compatibility, use of secondary content and performance of the package in protecting and delivering the product. Life Cycle Assessment (LCA) is able to evaluate these different strategies against environmental metrics such as climate change, land and water use and marine litter pollution. However, LCA has traditionally been too time consuming and expensive to be used effectively in packaging design process. To make LCA practical for packaging technologist and designers a simplified tool is needed to make LCA possible for non-environmental specialists. The Packaging Quick Evaluation Tool (PIQET) is a web-based solution for undertaking LCA of new and existing packaging designs considering the global supply chain and impacts from cradle to grave. PIQET is based on a pre-calculated LCA database covering the materials and processes involved in the packaging lifecycle from cradle to grave. This includes both virgin materials and recycled content, conversion of materials into packaging, and the transportation of packaging to the product filling. In addition, PIQET assesses the impacts once the package is filled looking at storage, transport and product loss through the supply chain. When applied to consumer packaging light weight packages which are note recyclable have lower impacts than more recyclable packages which have a higher mass. Its also apparent that for many products the impacts of product failure and product loss are more important environmentally compared to packaging material efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Climate%20change" title="Climate change">Climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=Life%20Cycle%20Assessment" title=" Life Cycle Assessment"> Life Cycle Assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=Marine%20litter" title=" Marine litter"> Marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=Packaging%20sustainability" title=" Packaging sustainability"> Packaging sustainability</a> </p> <a href="https://publications.waset.org/abstracts/120493/using-environmental-life-cycle-assessment-to-design-sustainable-packaging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120493.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">132</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1248</span> Seashore Debris Detection System Using Deep Learning and Histogram of Gradients-Extractor Based Instance Segmentation Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anshika%20Kankane">Anshika Kankane</a>, <a href="https://publications.waset.org/abstracts/search?q=Dongshik%20Kang"> Dongshik Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine debris has a significant influence on coastal environments, damaging biodiversity, and causing loss and damage to marine and ocean sector. A functional cost-effective and automatic approach has been used to look up at this problem. Computer vision combined with a deep learning-based model is being proposed to identify and categorize marine debris of seven kinds on different beach locations of Japan. This research compares state-of-the-art deep learning models with a suggested model architecture that is utilized as a feature extractor for debris categorization. The model is being proposed to detect seven categories of litter using a manually constructed debris dataset, with the help of Mask R-CNN for instance segmentation and a shape matching network called HOGShape, which can then be cleaned on time by clean-up organizations using warning notifications of the system. The manually constructed dataset for this system is created by annotating the images taken by fixed KaKaXi camera using CVAT annotation tool with seven kinds of category labels. A pre-trained HOG feature extractor on LIBSVM is being used along with multiple templates matching on HOG maps of images and HOG maps of templates to improve the predicted masked images obtained via Mask R-CNN training. This system intends to timely alert the cleanup organizations with the warning notifications using live recorded beach debris data. The suggested network results in the improvement of misclassified debris masks of debris objects with different illuminations, shapes, viewpoints and litter with occlusions which have vague visibility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer%20vision" title="computer vision">computer vision</a>, <a href="https://publications.waset.org/abstracts/search?q=debris" title=" debris"> debris</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20learning" title=" deep learning"> deep learning</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed%20live%20camera%20images" title=" fixed live camera images"> fixed live camera images</a>, <a href="https://publications.waset.org/abstracts/search?q=histogram%20of%20gradients%20feature%20extractor" title=" histogram of gradients feature extractor"> histogram of gradients feature extractor</a>, <a href="https://publications.waset.org/abstracts/search?q=instance%20segmentation" title=" instance segmentation"> instance segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=manually%20annotated%20dataset" title=" manually annotated dataset"> manually annotated dataset</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20template%20matching" title=" multiple template matching"> multiple template matching</a> </p> <a href="https://publications.waset.org/abstracts/150676/seashore-debris-detection-system-using-deep-learning-and-histogram-of-gradients-extractor-based-instance-segmentation-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150676.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">106</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1247</span> Genetic and Non-Genetic Evaluation of Milk Yield and Litter Size of Awassi Sheep in Drylands</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Al-Najjar">Khaled Al-Najjar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Q.%20Al-Momani"> Ahmad Q. Al-Momani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Elnahas"> Ahmed Elnahas</a>, <a href="https://publications.waset.org/abstracts/search?q=Reda%20Elsaid"> Reda Elsaid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research was carried out using records of Awassi sheep bred in drylands at Al-Fjaj Station, Jordan. That aimed to study non-genetic factors affecting milk yield (MK), litter size at birth (LZB); estimate heritability, repeatability, and genetic and phenotypic correlation using SAS and MTDFREML programs. The results were as follows, the average MK and LZB were 92.84 (kg) and 1.16, respectively. MK was highly significantly affected by each parity, age of ewe, year of lambing, and lactation period, while only the year of lambing had a significant effect on LZB. The heritability and repeatability were 0.07 and 0.10 for MK, while it was 0.05 and 0.25 for LZB. The genetic and phenotypic correlations were 0.17 and 0.02 between MK and LZB, respectively. The research concluded that the herd is genetically homozygous and therefore needs to increase genetic variance by introducing LZB-improved rams and selecting females from dams who achieved at least four parties to increase returns in drylands. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Awassi%20sheep" title="Awassi sheep">Awassi sheep</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20parameters" title=" genetic parameters"> genetic parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20size" title=" litter size"> litter size</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20yield" title=" milk yield"> milk yield</a> </p> <a href="https://publications.waset.org/abstracts/149418/genetic-and-non-genetic-evaluation-of-milk-yield-and-litter-size-of-awassi-sheep-in-drylands" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149418.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">119</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1246</span> Performance and Economics of Goats Fed Poultry Litter and Rumen Content</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Mohammed">A. Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Umar"> A. M. Umar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20H.%20Adamu"> S. H. Adamu </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study was conducted to evaluate the growth performance and nutrients utilization using 20 entire males of Sahelian goats fed Rumen content (fore-stomach digest) and poultry litter waste (PLW) at various levels of inclusion. The experimental animals were randomly allocated to diet A (Control), B (10% each of FSD and PLW), C (6.67%PLW and 13.33 FSD) and D(13.33% PLW and 6.67% FDS) at the rate of five animals per treatment. After 90 days of feeding trial, It was observed that Diets D had best feed intake and body weight gain which might be due to the good palatability of PLW and less odour of FSD in the diet. Diet C had the least feed cost then followed by diet B and while diet A(control) was more expensive than other treatments. There was the significant difference (P<0.05) between the treatments in the cost of daily feed consumption. Treatment A had the highest value while treatment C recorded the lowest cost of daily feed consumption. There was no significant difference (P > 0.05) between all treatments in terms of Cost of feed kg/ live weight gain, where treatment B had the highest value while the lowest obtained in treatment D. However, it is recommended that more research trial should be carried out to ascertain the true value of incorporating poultry litter waste and fore-stomach digest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=poultry%20litter" title="poultry litter">poultry litter</a>, <a href="https://publications.waset.org/abstracts/search?q=rumen%20content" title=" rumen content"> rumen content</a>, <a href="https://publications.waset.org/abstracts/search?q=weight%20gain" title=" weight gain"> weight gain</a>, <a href="https://publications.waset.org/abstracts/search?q=economics" title=" economics "> economics </a> </p> <a href="https://publications.waset.org/abstracts/20033/performance-and-economics-of-goats-fed-poultry-litter-and-rumen-content" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20033.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">642</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1245</span> Evaluation of Milk Production of an Algerian Rabbit Population Raised in Aures Area</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moumen%20Souad">Moumen Souad</a>, <a href="https://publications.waset.org/abstracts/search?q=Melizi%20Mohamed"> Melizi Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to characterize rabbits does of an Aures local population raised in Algeria, a study of their milk yield was realized in the experimental rabbitry of El Hadj Lakhdhar University. Milk production of does was measured every day during the days following 215 parturitions. It was estimated by weighing the female before and after the single daily suckling (10–15 min between the two weighing operations). The various calculated parameters were the quantity of milk produced per day, per week and the total quantity produced in 21 days, as well as the intake of milk by young rabbits. The analysis concerned the effects of the number of successive litters (3 classes: 1 to 3 and more) and of the average number of the number of young rabbits suckled per litter (6 classes: from 1-2 kits to more than 6). During the 21 days of controlled lactation, the average litter size was 6±3. The rabbits of the Aures area produced on average 2544.34±747 g in 21 days that is 121 g of milk/day or 21 g of milk/kit/day. The milk yield increased from 526, 1035, 1240 and 2801 g to 760, 1365, 1715 and 3840 for week 1, 2, 3 and the total period of lactation, respectively. Nevertheless, milk production available per kit and per day decreased linearly with kits number in the litter for each of the 3 weeks considered. On the other hand the milk yield was not affected by the weight at birth of kits. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=milk%20production" title="milk production">milk production</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20size" title=" litter size"> litter size</a>, <a href="https://publications.waset.org/abstracts/search?q=rabbit" title=" rabbit"> rabbit</a>, <a href="https://publications.waset.org/abstracts/search?q=Aures%20area" title=" Aures area"> Aures area</a>, <a href="https://publications.waset.org/abstracts/search?q=Algeria" title=" Algeria"> Algeria</a> </p> <a href="https://publications.waset.org/abstracts/4924/evaluation-of-milk-production-of-an-algerian-rabbit-population-raised-in-aures-area" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4924.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">262</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1244</span> Effect of the Magnetite Nanoparticles Concentration on Biogas and Methane Production from Chicken Litter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guadalupe%20Stefanny%20Aguilar-Moreno">Guadalupe Stefanny Aguilar-Moreno</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Angel%20Aguilar-Mendez"> Miguel Angel Aguilar-Mendez</a>, <a href="https://publications.waset.org/abstracts/search?q=Teodoro%20Espinosa-Solares"> Teodoro Espinosa-Solares</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the agricultural sector, one of the main emitters of greenhouse gases is manure management, which has been increased considerably in recent years. Biogas is an energy source that can be produced from different organic materials through anaerobic digestion (AD); however, production efficiency is still low. Several techniques have been studied to increase its performance, such as co-digestion, the variation of digestion conditions, and nanomaterials used. Therefore, the aim of this investigation was to evaluate the effect of magnetite nanoparticles (NPs) concentration, synthesized by co-precipitation, on the biogas and methane production in AD using chicken litter as a substrate. Synthesis of NPs was performed according to the co-precipitation method, for which a fractional factorial experimental design 25⁻² with two replications was used. The study factors were concentrations (precursors and passivating), time of sonication and dissolution temperatures, and the response variables were size, hydrodynamic diameter (HD) and zeta potential. Subsequently, the treatment that presented the smallest NPs was chosen for their use on AD. The AD was established in serological bottles with a working volume of 250 mL, incubated at 36 ± 1 °C for 80 days. The treatments consisted of the addition of different concentrations of NPs in the microcosms: chicken litter only (control), 20 mg∙L⁻¹ of NPs + chicken litter, 40 mg∙L⁻¹ of NPs + chicken litter and 60 mg∙L⁻¹ of NPs + chicken litter, all by triplicate. Methane and biogas production were evaluated daily. The smallest HD (49.5 nm) and the most stable NPs (21.22 mV) were obtained with the highest passivating concentration and the lower precursors dissolution temperature, which were the only factors that had a significant effect on the HD. In the transmission electron microscopy performed to these NPs, an average size of 4.2 ± 0.73 nm was observed. The highest biogas and methane production was obtained with the treatment that had 20 mg∙L⁻¹ of NPs, being 29.5 and 73.9%, respectively, higher than the control, while the treatment with the highest concentration of NPs was not statistically different from the control. From the above, it can be concluded that the magnetite NPs promote the biogas and methane production in AD; however, high concentrations may cause inhibitory effects among methanogenic microorganisms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agricultural%20sector" title="agricultural sector">agricultural sector</a>, <a href="https://publications.waset.org/abstracts/search?q=anaerobic%20digestion" title=" anaerobic digestion"> anaerobic digestion</a>, <a href="https://publications.waset.org/abstracts/search?q=nanotechnology" title=" nanotechnology"> nanotechnology</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management" title=" waste management"> waste management</a> </p> <a href="https://publications.waset.org/abstracts/114341/effect-of-the-magnetite-nanoparticles-concentration-on-biogas-and-methane-production-from-chicken-litter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114341.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1243</span> Effect of the Average Kits Birth Weight and of the Number of Born Alive per Liter on the Milk Production of Algerian Rabbit Raised in Aures Area</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Moumen">S. Moumen</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Melizi"> M. Melizi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to characterize rabbits does of an Aures local population raised in Algeria; a study of their milk yield was realized in the experimental rabbitry of El Hadj Lakhdhar University. Milk production of does was measured every day during the days following 215 parturitions. It was estimated by weighing the female before and after the single daily suckling (10-15 min between the 2 weighing operations). The various calculated parameters were the quantity of milk produced per day, per week and the total quantity produced in 21 days, as well as the intake of milk by young rabbits. The analysis concerned the effects of the number of successive litters (3 classes: 1 to 3 and more) and of the average number of the number of young rabbits suckled per litter (6 classes: from 1-2 kits to more than 6). During the 21 days of controlled lactation, the average litter size was 6±3. The rabbits of the Aures area produced on average 2544.34±747 g in 21 days that is 121 g of milk/day or 21g of milk/kit/day. The milk yield increased from 526, 1035, 1240, and 2801g to 760, 1365, 1715 and 3840 for week 1, 2, 3 and the total period of lactation respectively. Nevertheless, milk production available per kit and per day decreased linearly with kits number in the litter for each of the 3 weeks considered. On the other hand the milk yield was not affected by the weight at birth of kits. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=milk%20production" title="milk production">milk production</a>, <a href="https://publications.waset.org/abstracts/search?q=litter%20size" title=" litter size"> litter size</a>, <a href="https://publications.waset.org/abstracts/search?q=rabbit" title=" rabbit"> rabbit</a>, <a href="https://publications.waset.org/abstracts/search?q=Aures%20area" title=" Aures area"> Aures area</a>, <a href="https://publications.waset.org/abstracts/search?q=Algeria" title=" Algeria"> Algeria</a> </p> <a href="https://publications.waset.org/abstracts/4926/effect-of-the-average-kits-birth-weight-and-of-the-number-of-born-alive-per-liter-on-the-milk-production-of-algerian-rabbit-raised-in-aures-area" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4926.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">521</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1242</span> Association of Leptin Gene T3469C Polymorphism on Reproductive Performance of Purebred Sows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mariedel%20Autriz">Mariedel Autriz</a>, <a href="https://publications.waset.org/abstracts/search?q=Angel%20Lambio"> Angel Lambio</a>, <a href="https://publications.waset.org/abstracts/search?q=Renato%20Vega"> Renato Vega</a>, <a href="https://publications.waset.org/abstracts/search?q=Severino%20Capitan"> Severino Capitan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rita%20Laude"> Rita Laude</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study was conducted to associate genetic polymorphism of the leptin gene T3469C with reproductive performance in purebred sows. DNA were isolated from hair follicles of 29 Landrace and 24 Large White sows. Amplification of the leptin gene was done followed by Hinf1digestion to determine the base at the T3469C site. Electrophoresis of the digestion products revealed that there were 25 Landrace and 15 Large White sows with the TT genotype while there were 3 Landrace and 6 Large White TC. There was 1 CC for Landrace and 3 for Large White. Significant genotype associations were observed for total litter size born and total born alive. Significant breed differences, on the other hand, was observed for gestation length and average birth weight. Significant breed by genotype interaction was observed in litter size total born and litter size born alive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20polymorphism" title="genetic polymorphism">genetic polymorphism</a>, <a href="https://publications.waset.org/abstracts/search?q=leptin" title=" leptin"> leptin</a>, <a href="https://publications.waset.org/abstracts/search?q=swine" title=" swine"> swine</a>, <a href="https://publications.waset.org/abstracts/search?q=T3469C" title=" T3469C"> T3469C</a> </p> <a href="https://publications.waset.org/abstracts/67141/association-of-leptin-gene-t3469c-polymorphism-on-reproductive-performance-of-purebred-sows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67141.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">419</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1241</span> Microplastics in Different Coastal Zone Compartments at the South-Eastern Baltic Sea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktorija%20Sabaliauskait%C4%97">Viktorija Sabaliauskaitė</a>, <a href="https://publications.waset.org/abstracts/search?q=Ar%C5%ABnas%20Bal%C4%8Di%C5%ABnas"> Arūnas Balčiūnas</a>, <a href="https://publications.waset.org/abstracts/search?q=Renata%20Rubavi%C4%8Di%C5%ABt%C4%97"> Renata Rubavičiūtė</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Research on microplastic pollution in aquatic environments is being conducted worldwide. This presented research focused on the South-Eastern Baltic Sea, where, due to the natural conditions, algae accumulation on beaches is common. The present conditions enabled to apply and integrate of various microplastic extraction techniques: filtration, density separation, and sample aeration in order to investigate the microplastic concentrations within different beach compartments (nearshore water reference zone, nearshore algal scum zone, beach surface sand reference zone, beach wrack zone). This study demonstrates results from a total of 496 collected samples. The comparison of microplastic mean concentrations in water-based (0,016 item/cm³) and land-based (0,29 item/cm³) samples gave a clear insight into the microplastic accumulation hot spots, which pose pollution hazards to marine ecosystems and humans. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beach%20wrack" title="beach wrack">beach wrack</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20litter" title=" marine litter"> marine litter</a>, <a href="https://publications.waset.org/abstracts/search?q=microplastics" title=" microplastics"> microplastics</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution" title=" pollution"> pollution</a> </p> <a href="https://publications.waset.org/abstracts/178552/microplastics-in-different-coastal-zone-compartments-at-the-south-eastern-baltic-sea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178552.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">64</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1240</span> The Fate of Plastic Debris and Microplastic Particles in Mangroves in the Sultanate of Oman</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muna%20Al-Tarshi">Muna Al-Tarshi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The distribution and accumulation dynamics of anthropogenic marine debris (AMD) and microplastic particles in mangrove habitats in the region are poorly understood. The abundance, sorting, and diversity aspects of AMD and microplastics were investigated in three types of mangroves creeks ( Natural mangrove, afforested mangrove, and non-planted). Abundance, concentration, and particles form of microplastics have been illustrated in three substrate in mangrove habitats e.g. sediment, water, and aquatic organisms. Density separation method by using highly saturated solution was implemented to extract the plastic particles from the sediment samples. The average size of particles in each transect was done using image software, and the polymer type was determined via FTIR. There was variability in abundance of microplastics and marine debris between the habitats and within the substrates in the habitats.Biomonitoring program was developed to detect the pollution of microplastics in mangrove habitats in Sultanate of Oman. Sediment dwelling species were the best choice. Testing whether the zooplankton (Artemia) eating the microplastics via FlowCam technique have been studied. The zooplanktons (Artemia) were eating the microplastics as mistaken food. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microplastics" title="microplastics">microplastics</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20debris" title=" marine debris"> marine debris</a>, <a href="https://publications.waset.org/abstracts/search?q=flowcam" title=" flowcam"> flowcam</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR" title=" FTIR"> FTIR</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer" title=" polymer"> polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=artemia" title=" artemia"> artemia</a> </p> <a href="https://publications.waset.org/abstracts/151004/the-fate-of-plastic-debris-and-microplastic-particles-in-mangroves-in-the-sultanate-of-oman" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151004.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1239</span> The Community Structure of Fish and its Correlation with Mangrove Forest Litter Production in Panjang Island, Banten Bay, Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meilisha%20Putri%20Pertiwi">Meilisha Putri Pertiwi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mufti%20Petala%20Patria"> Mufti Petala Patria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mangrove forest often categorized as a productive ecosystem in trophic water and the highest carbon storage among all the forest types. Mangrove-derived organic matter determines the food web of fish and invertebrates. In Indonesia trophic water ecosystem, 80% commersial fish caught in coastal area are high related to food web in mangrove forest ecosystem. Based on the previous research in Panjang Island, Bojonegara, Banten, Indonesia, removed mangrove litterfall to the sea water were 9,023 g/m³/s for two stations (west station–5,169 g/m³/s and north station-3,854 g/m³/s). The vegetation were dominated from Rhizophora apiculata and Rhizopora stylosa. C element is the highest content (27,303% and 30,373%) than N element (0,427% and 0,35%) and P element (0,19% and 0,143%). The aim of research also to know the diversity of fish inhabit in mangrove forest. Fish sampling is by push net. Fish caught are collected into plastics, total length measured, weigh measured, and individual and total counted. Meanwhile, the 3 modified pipes (1 m long, 5 inches diameter, and a closed one hole part facing the river by using a nylon cloth) set in the water channel connecting mangrove forest and sea water for each stasiun. They placed for 1 hour at low tide. Then calculate the speed of water flow and volume of modified pipes. The fish and mangrove litter will be weigh for wet weight, dry weight, and analyze the C, N, and P element content. The sampling data will be conduct 3 times of month in full moon. The salinity, temperature, turbidity, pH, DO, and the sediment of mangrove forest will be measure too. This research will give information about the fish diversity in mangrove forest, the removed mangrove litterfall to the sea water, the composition of sediment, the total element content (C, N, P) of fish and mangrove litter, and the correlation of element content absorption between fish and mangrove litter. The data will be use for the fish and mangrove ecosystem conservation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fish%20diversity" title="fish diversity">fish diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=mangrove%20forest" title=" mangrove forest"> mangrove forest</a>, <a href="https://publications.waset.org/abstracts/search?q=mangrove%20litter" title=" mangrove litter"> mangrove litter</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20element" title=" carbon element"> carbon element</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20element" title=" nitrogen element"> nitrogen element</a>, <a href="https://publications.waset.org/abstracts/search?q=P%20element" title=" P element"> P element</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a> </p> <a href="https://publications.waset.org/abstracts/23670/the-community-structure-of-fish-and-its-correlation-with-mangrove-forest-litter-production-in-panjang-island-banten-bay-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23670.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">485</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1238</span> Estimating Heavy Metal Leakage and Environmental Damage from Cigarette Butt Disposal in Urban Areas through CBPI Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Faisal">Muhammad Faisal</a>, <a href="https://publications.waset.org/abstracts/search?q=Zai-Jin%20You"> Zai-Jin You</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Naeem"> Muhammad Naeem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Concerns about the environment, public health, and the economy are raised by the fact that the world produces around 6 trillion cigarettes annually. Arguably the most pervasive forms of environmental litter, this dangerous trash must be eliminated. The researchers wanted to get an idea of how much pollution is seeping out of cigarette butts in metropolitan areas by studying their distribution and concentration. In order to accomplish this goal, the cigarette butt pollution indicator was applied in 29 different areas. The locations were monitored monthly for a full calendar year. The conditions for conducting the investigation of the venues were the same on both weekends and during the weekdays. By averaging the metal leakage ratio in various climates and the average weight of cigarette butts, we were able to estimate the total amount of heavy metal leakage. The findings revealed that the annual average value of the index for the areas that were investigated ranged from 1.38 to 10.4. According to these numbers, just 27.5% of the areas had a low pollution rating, while 43.5% had a major pollution status or worse. Weekends witnessed the largest fall (31% on average) in all locations' indices, while spring and summer saw the largest increase (26% on average) compared to autumn and winter. It was calculated that the average amount of heavy metals such as Cr, Cu, Cd, Zn, and Pb that seep into the environment from discarded cigarette butts in commercial, residential, and park areas, respectively, is 0.25 µg/m2, 0.078 µg/m2, and 0.18 µg/m2. Butt from cigarettes is one of the most prevalent forms of litter in the area that was examined. This litter is the origin of a wide variety of contaminants, including heavy metals. This toxic garbage poses a significant risk to the city. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heavy%20metal" title="heavy metal">heavy metal</a>, <a href="https://publications.waset.org/abstracts/search?q=hazardous%20waste" title=" hazardous waste"> hazardous waste</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management" title=" waste management"> waste management</a>, <a href="https://publications.waset.org/abstracts/search?q=litter" title=" litter"> litter</a> </p> <a href="https://publications.waset.org/abstracts/166982/estimating-heavy-metal-leakage-and-environmental-damage-from-cigarette-butt-disposal-in-urban-areas-through-cbpi-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166982.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span 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