A First Record on Microplastic Ingestion by Tropical Estuarine Copepods of Bangladesh.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-06-30 DOI:10.1007/s00128-024-03919-5
Najmus Sakib Khan, Jaber Bin Abdul Bari, S M Mahatab Uddin, Mohammad Shamsur Rahman, Maeen Uddin, Sweety Bhowmik, Sanjida Akter Nisa, Md Ashraful Alam, Mohammad Nazir Hossain
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Abstract

Microplastics (MPs) pollution is a profound problem around the world yet it's study on the effect on zooplankton including copepods are very limited. The study was conducted between January 2021 and January 2022 in the Lower Meghna Estuary to investigate MPs ingestion in two different family of copepod: Calanoid and Cyclopoid. A method of acid digestion along with Scanning Electron Microscope (SEM) was used to identify MPs ingested by copepods from the conducted area. However, three types of MPs namely fiber, fragment and foam were extracted from this copepod biomass. Fibers represent highest (> 50%) of the ingested MPs from both group of copepod that exceed fragments and foams in all sampling stations. The overall ingestion rate of Calanoid was found higher (0.084 ± 0.002 particles/individual) compared to the Cyclopoid group (0.077 ± 0.001 particles/individual). The results of the study have effectively illustrated that copepod, obtained from multiple sampling sites within the Lower Meghna Estuary, display a propensity to ingest MPs and subsequently endangering the food security of seafood industry.

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孟加拉国热带河口桡足类摄入微塑料的首次记录。
微塑料(MPs)污染是全球面临的一个严重问题,但对包括桡足类在内的浮游动物影响的研究却非常有限。这项研究于 2021 年 1 月至 2022 年 1 月期间在梅格纳河口下游进行,目的是调查两种不同桡足类摄入 MPs 的情况:桡足类和环足类。研究人员采用酸消化法和扫描电子显微镜(SEM)来识别研究区域内桡足类摄入的多溴联苯醚。然而,从这些桡足类生物质中提取出了三种类型的 MPs,即纤维、碎片和泡沫。在所有采样站中,纤维在两组桡足类摄取的多孔质颗粒中占比最高(> 50%),超过碎片和泡沫。桡足类的总体摄取率(0.084 ± 0.002 颗粒/个体)高于环足类(0.077 ± 0.001 颗粒/个体)。研究结果有效地说明,从梅格纳河口下游多个采样点获得的桡足类有摄入多溴联苯醚的倾向,从而危及海产品行业的食品安全。
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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