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Dataset for: Microplastics in fish and fishmeal: an emerging environmental challenge?
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This is a data repository entry supporting a published paper on microplastics in fish and fishmeal, not an original research article. It links to the associated Scientific Reports publication from 2021.
This dataset supports the publication: Thiele, C. J., Hudson, M., Russell, A. E., Saluveer, M., and Sidaoui-Haddad, G. (2021). Microplastics in fish and fishmeal: an emerging environmental challenge? Scientific Reports, 11, [2045]. https://doi.org/10.1038/s41598-021-81499-8
More Papers Like This
Microplastics in fish and fishmeal: an emerging environmental challenge?
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Researchers found that commercial fishmeal, which is used in animal and fish feed, contains about 124 microplastic particles per kilogram, potentially more than the original fish it was made from. This suggests that the manufacturing process may add extra microplastics to the final product. Through marine aquaculture alone, over 300 million microplastic particles could be released into the ocean annually via fishmeal, creating a cycle where microplastics contaminate both farmed and wild seafood that people eat.
Microplastics in fish meals: An exposure route for aquaculture animals
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Researchers analyzed fish meal samples from ten major producing countries worldwide and found microplastic contamination in all samples tested, averaging 5.5 particles per gram. Fibres were the most common shape, with cellophane, polypropylene, and PET being the dominant polymer types. The study estimates that aquaculture animals fed contaminated fish meal ingest significant quantities of microplastics, identifying fish meal as an important but previously overlooked exposure route.
Microplastics contamination in commercial fish meal and feed: a major concern in the cultured organisms
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Researchers analyzed commercial fish meal and animal feed samples and found microplastics in all of them, with fish meal containing up to 1,154 particles per kilogram. The contaminated feed is given to farmed fish, shrimp, and chicken, creating a pathway for microplastics to reach humans through the food supply. Feed made from dried fish had higher contamination levels than feed from fresh fish, and the microplastics also carried toxic heavy metals.
Detection and characterisation of microplastics and microfibres in fishmeal and soybean meal
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Researchers examined fishmeal and soybean meal used as aquaculture feed ingredients and detected microplastics and semi-synthetic cellulosic microfibers in fishmeal but not in plant-based soybean meal. The findings suggest that animal-based aquaculture feeds represent a route of microplastic contamination for farmed fish.
Microplastics in fishmeal: A threatening issue for sustainable aquaculture and human health
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Researchers reviewed how microplastics enter aquaculture systems through contaminated fishmeal — made from wild-caught fish that have ingested ocean plastics — and accumulate in farmed fish that are then eaten by humans. The review calls for improved microplastic screening during fish feed production to protect both aquaculture sustainability and public health.
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