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Ingestion of plastic by fish destined for human consumption in remote South Pacific islands
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Researchers documented plastic ingestion in 24 fish species caught for human consumption in the remote South Pacific, finding plastic in fish from both local markets and fishermen's catches. The study raises concerns about microplastic transfer up the food chain to humans who eat these fish.
Plastic marine debris is increasingly recognized as one of the greatest threats to global oceans, and the humans who depend on them. This study documents plastic ingestion in 24 species caught or sold for human consumption in the South Pacific. Fish were collected from local fishermen and markets in remote locations, including French Polynesia, Lord Howe Island and Henderson Island (Pitcairn group). Gastrointestinal tracts of 126 fish were visually examined and plastic was found in 7.9% of individual fish and 25% of species. The plastics were mostly microplastics (fragments, nurdles and rope). There was no significant difference in plastic ingestion in relation to feeding style, length, region or species. This is concerning as plastic appears to be widespread across species, lifestyles and habitats. This is the first report of plastic in South Pacific fish, raising concerns about the transfer of pollutants in a region that is largely oceanic and heavily dependent on seafood. The remote locations of the study also provide evidence of the widespread nature of this issue.
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Ingestion of plastic by fish destined for human consumption in remote South Pacific Islands
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Plastic was found in the digestive tracts of 24 fish species collected from local fishermen and markets across remote South Pacific islands, with species consuming plastic regardless of feeding guild. The results raise public health concerns for Pacific island communities where fish is a dietary staple and plastic marine debris is widespread.
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Researchers found microplastics in the gut, gills, and flesh of two fish species collected from South Maldives, with 80% of one species containing plastic particles, indicating widespread ingestion by reef fish in this remote island nation and potential transfer into the human food chain.
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Commercial fish species from the South Pacific, collected from both oceanic accumulation zones and island markets, were found to have plastic in their digestive tracts, with higher ingestion rates in fish from the oceanic gyre. The results raise food safety concerns for Pacific island communities that rely heavily on locally caught fish.
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Researchers analyzed microplastic ingestion in 634 fish from seven commercially important species across all four Macaronesian archipelagos, comparing abundance and characteristics of ingested particles across species with different habitats, feeding behaviors, and geographic distributions.
Microplastic assessment of 33 marine finfish species from coastal communities on Tongatapu, Kingdom of Tonga
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This study provides the first dataset on microplastic ingestion by coastal fish species in the Kingdom of Tonga, examining 139 fish from 33 species. Researchers detected microplastics in 42% of fish examined, with an average of 0.77 particles per individual, highlighting the relevance of microplastic contamination for Pacific Island communities that depend heavily on fisheries for food security.
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.