Discarded fishing net pollution in coastal areas of Bangladesh.

IF 5.4 2区 医学 Q2 MATERIALS SCIENCE, BIOMATERIALS
Gawsia Wahidunnessa Chowdhury, Heather J Koldewey, Md Nazmul Hasan Niloy, Mohammad Mizanur Rahman Khan, Nabanita Das, Surshti Patel, Bushra Nishat, Zoie T Diana, Nina Tsydenova, Subrata Sarker
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引用次数: 0

Abstract

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.

孟加拉国沿海地区的废弃渔网污染。
废弃渔网是海洋垃圾的主要来源,由于含有合成聚合物,严重威胁海洋环境并造成塑料污染。虽然孟加拉国是一个海洋国家,有 50 万渔民依靠沿海和海洋捕鱼为生,但迄今为止还没有关于渔网对塑料污染影响的研究。本研究展示了孟加拉国两个沿海地区(查尔费松和考克斯巴扎尔)与海洋垃圾有关的渔网。研究人员从当地的渔网店收集了渔网样本,并对店主进行了半结构式访谈,以收集有关现有渔网的信息。此外,还进行了照相四分法调查,以记录两地海岸上的废弃渔网材料。在 17 个渔网样本中,有 12 种刺网,它们在价格、材料类型和使用寿命方面差异很大。通过傅立叶变换红外光谱分析,我们确定所采集的渔网样本中含有尼龙 6、聚乙烯、聚氯乙烯、聚丙烯和聚对苯二甲酸乙二醇酯。照相地形图调查发现**沿海地区存在与渔网有关的塑料污染。这项研究填补了孟加拉国在渔网的多样性和化学特性以及由此产生的垃圾方面的知识空白。
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来源期刊
ACS Biomaterials Science & Engineering
ACS Biomaterials Science & Engineering Materials Science-Biomaterials
CiteScore
10.30
自引率
3.40%
发文量
413
期刊介绍: ACS Biomaterials Science & Engineering is the leading journal in the field of biomaterials, serving as an international forum for publishing cutting-edge research and innovative ideas on a broad range of topics: Applications and Health – implantable tissues and devices, prosthesis, health risks, toxicology Bio-interactions and Bio-compatibility – material-biology interactions, chemical/morphological/structural communication, mechanobiology, signaling and biological responses, immuno-engineering, calcification, coatings, corrosion and degradation of biomaterials and devices, biophysical regulation of cell functions Characterization, Synthesis, and Modification – new biomaterials, bioinspired and biomimetic approaches to biomaterials, exploiting structural hierarchy and architectural control, combinatorial strategies for biomaterials discovery, genetic biomaterials design, synthetic biology, new composite systems, bionics, polymer synthesis Controlled Release and Delivery Systems – biomaterial-based drug and gene delivery, bio-responsive delivery of regulatory molecules, pharmaceutical engineering Healthcare Advances – clinical translation, regulatory issues, patient safety, emerging trends Imaging and Diagnostics – imaging agents and probes, theranostics, biosensors, monitoring Manufacturing and Technology – 3D printing, inks, organ-on-a-chip, bioreactor/perfusion systems, microdevices, BioMEMS, optics and electronics interfaces with biomaterials, systems integration Modeling and Informatics Tools – scaling methods to guide biomaterial design, predictive algorithms for structure-function, biomechanics, integrating bioinformatics with biomaterials discovery, metabolomics in the context of biomaterials Tissue Engineering and Regenerative Medicine – basic and applied studies, cell therapies, scaffolds, vascularization, bioartificial organs, transplantation and functionality, cellular agriculture
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