Microplastic pollution in aquaculture species: Quantification and characterization in Tilapia and Pangas

IF 3.9 1区农林科学 Q1 FISHERIES

Aquaculture Pub Date : 2025-07-02 DOI:10.1016/j.aquaculture.2025.742922

Md. Rased Khan Manon , Md. Sazedul Hoque , Md. Ariful Alam , Md. Saiful Islam , Md. Arifur Rahman

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Abstract

Microplastics (MPs) are an emerging threat to freshwater ecosystems and aquatic life, yet data on MPs pollution in aquaculture systems especially in Bangladesh, remain scarce. This study investigated the tissue accumulation and polymer compositions of MPs influenced by the feeding habits of Oreochromis niloticus and Pangasius hypophthalmus from aquaculture ponds. MPs were predominantly detected in the gastrointestinal tract (GIT) and muscle tissues, with fibers (<0.5 mm) being the most common type and black the dominant color. Interestingly, feeding habits did not significantly affect the overall MP intake. Principal component analysis (PCA) revealed 70.3 % of the total variation in Tilapia and 53.7 % in Pangas, with 1 to 5, transparent, and filament (fiber) showing significant positive contributions as the main components. Fourier-transform infrared spectroscopy (FTIR) analysis detected polyethylene as the most abundant polymer, followed by polyester, polypropylene, cellulose, non-plastic, and unidentified particles. These findings highlight the prevalent presence of MPs in aquaculture systems, raising concerns about trophic transfer and eventual risks to human health. The study highlights the pressing need for operational management policies to alleviate MP pollution in aquaculture environments.

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水产养殖物种的微塑料污染：罗非鱼和鲶鱼的定量和表征

微塑料是对淡水生态系统和水生生物的新威胁，但关于水产养殖系统中微塑料污染的数据仍然很少，特别是在孟加拉国。研究了养殖池塘中尼罗鱼（Oreochromis niloticus）和下眼巴沙鱼（Pangasius hypophthalmus）摄食习性对MPs组织积累和聚合物组成的影响。MPs主要在胃肠道（GIT）和肌肉组织中检测到，纤维（<0.5 mm）是最常见的类型，黑色为主要颜色。有趣的是，摄食习惯并没有显著影响总MP摄入量。主成分分析（PCA）显示，罗非鱼和鲶鱼的总变异量分别占70.3%和53.7%，其中1 ~ 5、透明和长丝（纤维）为主要的正贡献成分。傅里叶变换红外光谱（FTIR）分析发现聚乙烯是最丰富的聚合物，其次是聚酯，聚丙烯，纤维素，非塑料和未知颗粒。这些发现强调了MPs在水产养殖系统中的普遍存在，引起了对营养转移和最终对人类健康的风险的关注。该研究强调迫切需要制定业务管理政策，以减轻水产养殖环境中的多聚磷污染。

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来源期刊

Aquaculture 农林科学-海洋与淡水生物学

CiteScore

8.60

自引率

17.80%

发文量

1246

审稿时长

56 days

期刊介绍： Aquaculture is an international journal for the exploration, improvement and management of all freshwater and marine food resources. It publishes novel and innovative research of world-wide interest on farming of aquatic organisms, which includes finfish, mollusks, crustaceans and aquatic plants for human consumption. Research on ornamentals is not a focus of the Journal. Aquaculture only publishes papers with a clear relevance to improving aquaculture practices or a potential application.