Abundance and characterization of microplastics in amphipods from the Japanese coastal environment
Abundance and characterization of microplastics in amphipods from the Japanese coastal environment
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DOI：
10.1007/s11356-023-25878-w
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发表时间：
2023-02
影响因子：
5.8
通讯作者：
Yasuharu Katte;Junya Saito;Edward G. Nagato
中科院分区：
文献类型：
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作者：
Yasuharu Katte;Junya Saito;Edward G. Nagato
微塑料可以被像双足类这样的微小有害食肉动物摄取，这可能会对食物链造成影响。本研究描述了日本沿海环境中发现的两足类中微塑料的丰度、化学成分和大小，这是微塑料积累的一个热点。观察到日本长脚类、三足类和三足类微塑料摄取量很高，差异很大(0.2-76.3个/只)，这可能是由于栖息地偏好和背景污染的差异。这一结果表明，特别是沿海的两足类可能会摄取大量的微塑料。两足类微塑料颗粒平均尺寸为59 ± 8.6m，其中小于90 mm的颗粒占83%，且以聚乙烯为主。这项研究为沿海片足类微塑料丰度的研究提供了洞察，并为进一步研究沿海片足类微塑料摄食提供了背景。
Microplastics can be ingested by tiny detritivores such as amphipods, with potential consequences on the food chain. The present study characterizes the abundance, chemical composition, and size of microplastics in amphipods found in the Japan Sea coastal environment, which is a hotspot for microplastic accumulation. High amounts of microplastic ingestion and a large discrepancy by amphipod species,Talorchestia nipponensis,Ampithoe valida, andTrinorchestia trinitatis, were observed (between 0.2 and 76.3 particles/individual) which may be due to differences in habitat preference and background contamination. This result indicates that coastal amphipods in particular may ingest large amounts of microplastics. The average microplastic particle size in amphipods was 59 ± 8.6 µm, with 83% of particles smaller than 90 µm, and polyethylene was dominant. This study provides insights into microplastic abundance in coastal amphipods and the context for further studies on coastal amphipod microplastic ingestion.Graphical Abstract