Academic literature on the topic 'Manta trawl'

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Journal articles on the topic "Manta trawl"

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Tikhonova, D. A., E. P. Shalunova, and S. G. Karetnikov. "Comparing the efficiency of two water sampling methods for studying the content of microplastics in water bodies." Limnology and Freshwater Biology, no. 6 (2024): 1434–53. https://doi.org/10.31951/2658-3518-2024-a-6-1434.

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Due to the lack of a unified sampling methodology for studying microplastics, there are difficulties in comparing the results obtained when sampling using different methods. A comparison was made of a pump filtration system and a Manta trawl to assess their effectiveness and applicability in collecting water samples for studying microplastics content using the example of Lake Ladoga, the Svir River and small lakes in the Leningrad region (Sukhodolskoye, Michurinskoye, Krasnoye). The results supported that despite higher average microplastics concentrations when sampling with the pump system (8
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Shi, Haochen, Xiaohui Wang, Lixin Zhu, and Daoji Li. "Comprehensive Comparison of Various Microplastic Sampling Methods in Sea Water: Implications for Data Compilation." Water 15, no. 6 (2023): 1035. http://dx.doi.org/10.3390/w15061035.

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The problem of plastic and microplastic (MP, <5 mm in size) pollution has received widespread attention globally, with its widespread presence being reported in various environmental media. However, a lack of standard sampling and analysis methods is making it difficult to compare data across studies and understand the source and fate of plastics and MPs. Common sampling strategies used in studies of MP in natural waters include Manta net and pump filtering using different mesh sizes, but the impact of these sampling technologies on the final MP abundance and characteristics is not well und
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Ramadan, Attar Hikmahtiar, and Emenda Sembiring. "Occurrence of Microplastic in surface water of Jatiluhur Reservoir." E3S Web of Conferences 148 (2020): 07004. http://dx.doi.org/10.1051/e3sconf/202014807004.

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Microplastic is generally defined as synthetic polymers which size less than 5 mm. Based on the latest research, microplastics pollutions have many impacts on the environment and human. Jatiluhur, as one of the biggest freshwater reservoir in Indonesia, has potential to be polluted by microplastics because the water source of this reservoir streamed from Citarum watershed. Citarum River is one of the most polluted river in Indonesia. To find the occurrence of microplastics and to facilitate future policies in order to overcome microplastic pollution which occurs in Jatiluhur Reservoir, a study
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Dris, Rachid, Johnny Gasperi, Vincent Rocher, Mohamed Saad, Nicolas Renault, and Bruno Tassin. "Microplastic contamination in an urban area: a case study in Greater Paris." Environmental Chemistry 12, no. 5 (2015): 592. http://dx.doi.org/10.1071/en14167.

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Environmental context Plastics production has increased considerably in recent years, leading to pollution by plastics, including microplastics (comprising particles smaller than 5mm). This work addresses the issue of microplastics from urban sources and in receiving waters in Greater Paris. Microplastics were found in all urban compartments investigated, namely atmospheric fallout, waste- and treated water, and surface water. Abstract This study investigates the microplastic contamination of both urban compartments (wastewater and total atmospheric fallout) and surface water in a continental
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SCHWARTZ, FRANK J. "Status of Stingrays (Order Myliobatiformes) Captured 1972–2010 at Two Sites in Onslow Bay, Atlantic Ocean, North Carolina." Journal of North Carolina Academy of Science 127, no. 1 (2011): 35–37. http://dx.doi.org/10.7572/2167-5880-127.1.35.

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Abstract Eight species of stingrays (Order Myliobatiformes) were collected by trawl and longline 1972–2010 at two Onslow Bay sites, Atlantic Ocean, North Carolina. Three species: Gymnura altavela, Dasyatis say and Myliobatis freminvillei were collected more often during a cooler water peiod 1972–1989; five others, G. micrura, D. sabina, D. americana, Aetobatis narinari and Manta birostris during a warmer water period 1990–2010. Seven other stingray species, known from North Carolina, remain part of its stingray fauna but were not collected. Why some stingray species were more prevalent in cool
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Karlsson, Therese M., Anna Kärrman, Anna Rotander, and Martin Hassellöv. "Comparison between manta trawl and in situ pump filtration methods, and guidance for visual identification of microplastics in surface waters." Environmental Science and Pollution Research 27, no. 5 (2019): 5559–71. http://dx.doi.org/10.1007/s11356-019-07274-5.

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AbstractOwing to the development and adoption of a variety of methods for sampling and identifying microplastics, there is now data showing the presence of microplastics in surface waters from all over the world. The difference between the methods, however, hampers comparisons, and to date, most studies are qualitative rather than quantitative. In order to allow for a quantitative comparison of microplastics abundance, it is crucial to understand the differences between sampling methods. Therefore, a manta trawl and an in situ filtering pump were compared during realistic, but controlled, fiel
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Frank, Yulia A., Alexandra A. Ershova, Egor D. Vorobiev, and Danil S. Vorobiev. "Comparability of riverine microplastic sampling and processing techniques: intercalibration experiment for the Yenisei River." Vestnik Тomskogo gosudarstvennogo universiteta. Khimiya, no. 34 (2024): 89–105. http://dx.doi.org/10.17223/24135542/34/8.

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Current methodologies for microplastic detection in the environment, including surface freshwaters, are imperfect; no standardized methods for sampling and sample preparation are available. The paper discusses the issues of comparability of microplastic surveys conducted by different methods. An intercalibration experiment carried out on the Yenisei River by two research labs – Research Center ‘Microplastic Siberia’, Tomsk State University, and PlasticLab, Russian State Hydrometeorological University – is described in detail, including the laboratory protocols and QA/QC issues. Two different s
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Schönlau, Christine, Therese M. Karlsson, Anna Rotander, et al. "Microplastics in sea-surface waters surrounding Sweden sampled by manta trawl and in-situ pump." Marine Pollution Bulletin 153 (April 2020): 111019. http://dx.doi.org/10.1016/j.marpolbul.2020.111019.

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Yadav, Pooja, Sweety Dahiya, Sangita Yadav, Deepak Dahiya, Manju Rani, and Sudesh Chaudhary. "Examining the Ecological Footprint of Microplastics: A Holistic Exploration from Genesis to Demise." Oriental Journal Of Chemistry 40, no. 3 (2024): 788–93. http://dx.doi.org/10.13005/ojc/400321.

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Microplastics are described as plastic particles smaller than 5 mm in size. Nowadays they are making an increasingly prevalent environmental issue as generated by a variety of products. Microplastics are diagnosed in various environmental compartments like soil, water, and air and affect the quality of them. Manta nets, dust samplers, shawls, trawl etc. the sampling equipment are used. They are identified and characterised by Visual identification, FTIR, SEM, RAMAN etc. This review paper addresses the origins, sources, distribution, adverse impacts and potential hazards of microplastics on the
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Barraza Sandoval, José Enrique, Verónica Esperanza Melara, Rainer Christoph, et al. "Microplásticos en agua superficial de la costa de El Salvador." Realidad y Reflexión 54, no. 54 (2021): 140–55. http://dx.doi.org/10.5377/ryr.v54i54.12072.

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Con el objetivo de determinar la densidad de microplásticos suspendidos en zonas costeras marinas de El Salvador y compararlas entre las épocas lluviosa y seca, 2018-2019, respectivamente, se realizaron muestreos utilizando un complejo manta trawl con red de 40 μm de poro, en transectos superficiales rectos frente las playas Mizata, El Pimental, ciudad costera La Libertad y en el golfo de Fonseca. Se preservó el material filtrado en etanol al 90 % V/V. Las densidades más altas ocurrieron en la cuarta área mencionada (0.07-0.22 partículas/m3), lo contrario ocurrió en la tercera (0.00-0.02 partí
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Dissertations / Theses on the topic "Manta trawl"

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Stoffle, Richard W., Rebecca Toupal, Jessica Medwied-Savage, et al. "Ethnohistoric and Ethnographic Assessment of Contemporary Communities along the Old Spanish Trail." Bureau of Applied Research in Anthropology, University of Arizona, 2008. http://hdl.handle.net/10150/270968.

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The overall objective of this study is to compile the ethnohistory and contemporary perspectives of selected historically connected Hispanic communities that were affected by the OST. The project can be divided into two parts: 1) a brief history of each community under study and its historic relationship to the OST, and 2) a description of contemporary community views of the trail. Of special interest will be any contemporary knowledge related to the role played by the trail (and/or events related to the trail’s history and use) that affected the history and perspective of each community. Also
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Araújo, Bernadete Fernandes de. "Trilha interpretativa nos biomas de mata atlântica e caatinga a partir da percepção ambiental dos estudantes do ensino médio." Universidade Federal de Alagoas, 2016. http://www.repositorio.ufal.br/handle/riufal/1621.

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This study weaves reflections on the Biology teaching on the Atlantic Forest biome and Caatinga through the problem and interpretive trail situations, such as teaching strategies that seek in everyday life situations that facilitate the interpretation of the natural elements, for students realize the potential of plants typical of these biomes. We seek to answer the following question: As students of the 3rd year of high school recognize the characteristics of typical plants of the Indians Palm biomes - AL, from problem situations and interpretive trail? In line with guidelines of Reigota (199
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Books on the topic "Manta trawl"

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Mcdermott, Leeanne. GamePro Presents: Sega Genesis Games Secrets: Greatest Tips. Prima Publishing, 1992.

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Dunbar, Clifford W. The Manna Trail. BookSurge Publishing, 2003.

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Book chapters on the topic "Manta trawl"

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Lane, Belden C. "Traveling Light: Gunstock Hollow and Dag Hammarskjöld." In Backpacking with the Saints. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199927814.003.0016.

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It was new to me. Backpacker magazine had listed Gunstock Hollow as the “best Southern hollow in America,” and I was curious. The dog and I set out one weekend, hiking the middle fork of the Ozark Trail into this hollow nestled between two ridges. Three days remained in deer hunting season that year, so I tied a red bandana around Desert’s neck and wore a bright orange vest myself. With a name like Gunstock Hollow we figured we ought to be careful. Gunstock Hollow is typical of a lot of closed-in wilderness sites in the Ozarks. Thickets of densely growing trees give it a secluded and mysteriou
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Reports on the topic "Manta trawl"

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Stratigraphic framework and coal resources of the Upper Cretaceous Blackhawk Formation in the Trail Mountain and East Mountain areas of the Wasatch Plateau coal field, Manti 30' x 60' Quadrangle, Emery County, Utah. US Geological Survey, 1986. http://dx.doi.org/10.3133/coal94c.

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