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Microplastic pollution of commercial fishes from coastal and offshore waters, Japan
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This study measured microplastic contamination in 12 commercially important fish species from coastal and deep offshore waters around Japan. Microplastics were detected in fish from both environments, providing baseline data on contamination levels in species consumed by Japanese and global populations.
ABSTRACT Microplastics (MPs) pollution is a worldwide issue in the marine environment. There is growing concern of consuming MPs through fish, yet the current contamination status of fish collected from the deep sea surrounding Japan remains limited. We present baseline data on MPs in commercially important fishes from the coastal and offshore waters near Kyushu, Japan (East China Sea). We examined the MPs in the digestive tracts of two pelagic (n = 150 in total) and five demersal species (n = 235 in total). The fish were caught by pole and line, and bottom trawl at different geographical positions. The MPs in pelagic fish (39.1 %) were higher than demersal fish (10.3 %) and of larger sizes. The MPs correlated with habitat depth and type. There was species variation in the shape and polymer composition of MPs. These results increase our understanding of the heterogeneous uptake of MPs by fishes.
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Microplastic pollution of commercial fishes from coastal and offshore waters in southwestern Japan
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Microplastics were found in the digestive tracts of seven fish species from coastal and offshore waters near Kyushu, Japan, with contamination rates and particle characteristics differing between pelagic and demersal species and between coastal and deeper water habitats.
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Researchers assessed microplastic accumulation in commercially important fish species from coastal and offshore waters, finding significant differences between species based on feeding strategies and habitat depth. Filter feeders and omnivorous species accumulated more microplastics than others, reflecting diet-based differences across trophic levels. The study raises concerns about human dietary exposure to microplastics through widely consumed seafood products.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.