Discarded fishing net pollution in coastal areas of Bangladesh.

Autor: Chowdhury GW; Department of Zoology, University of Dhaka, Dhaka 1000, Bangladesh., Koldewey HJ; Zoological Society of London, Regent's Park, London NW1 4RY, UK; Centre for Ecology and Conservation, University of Exeter, Cornwall TR10 9EZ, UK., Niloy MNH; Department of Zoology, University of Dhaka, Dhaka 1000, Bangladesh., Khan MMR; Department of Chemistry, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh; Research Center for Green Energy Systems, Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Republic of Korea., Das N; Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh., Patel S; Zoological Society of London, Regent's Park, London NW1 4RY, UK., Nishat B; The World Bank, Environment, Natural Resources and Blue Economy Global Practice, Dhaka, Bangladesh., Diana ZT; Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada., Tsydenova N; The World Bank, Environment, Natural Resources and Blue Economy Global Practice, Washington, DC, United States., Sarker S; Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh. Electronic address: subratasrk-ocg@sust.edu.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Nov 20; Vol. 952, pp. 175529. Date of Electronic Publication: 2024 Aug 21.
DOI: 10.1016/j.scitotenv.2024.175529
Abstrakt: Discarded fishing nets, a major source of marine litter, significantly threaten the marine environment and contribute to plastic pollution due to the synthetic polymers they contain. Though Bangladesh is a maritime country with 0.5 million of fishers dependent on coastal and marine fishing, there have been no studies to date on the plastic pollution impact of fishing nets. This study demonstrates the fishing nets associated with marine litter in two coastal locations of Bangladesh, Charfesson and Cox's Bazar. Fishing net samples were collected from local net shops and semi-structured interviews were taken of the shop owners to gather information about available fishing nets. This was complemented by photo-quadrat surveys to document waste fishing net materials on the shore in both locations. Among the 17 net samples, there were 12 types of gill nets, which showed a wide range of variation in price, material types, and longevity. Through the FTIR analysis, we identified the presence of Nylon 6, Polyethylene, Polyvinyl chloride, Polypropylene and Polyethylene terephthalate in the collected fishing net samples. Photoquadrat surveys found that fishing nets are related to plastic pollution in coastal areas. This study addressed the knowledge gap regarding the diversity and chemical characteristics of fishing nets and the resulting litter in Bangladesh.
Competing Interests: Declaration of competing interest The authors declare no competing interests.
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Databáze: MEDLINE
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