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GCov/ces-2025-0002.R2_Microplastics_fate_in_yellow_perch: ces-2025-0002.R2.v1
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Researchers exposed yellow perch to microplastics in large in-lake mesocosms over an extended period and found that particles migrated beyond the gastrointestinal tract into other organs, providing in-situ evidence that microplastics can translocate systemically under ecologically realistic conditions.
These are the code and data from ces-2025-0002.R2: Microplastics reach organs outside the gastrointestinal tract of yellow perch (Perca flavescens) following long-term exposure in large, in-lake mesocosms. Authors: Garth A. Covernton, Mira Ghosh, Ludovic Hermabessiere, Kennedy Bucci, Desiree Langenfeld, Rachel McNamee, Cody Veneruzzo, Matthew J. Hoffman, Diane M. Orihel, Michael J. Paterson, Jennifer F. Provencher, Michael D. Rennie, Chelsea M. Rochman.
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GCov/ces-2025-0002.R2_Microplastics_fate_in_yellow_perch: ces-2025-0002.R2.v1
AI summary Read the abstract
Researchers exposed yellow perch to microplastics in large in-lake mesocosms over an extended period and found that particles migrated beyond the gastrointestinal tract into other organs, providing in-situ evidence that microplastics can translocate systemically under ecologically realistic conditions.
Microplastics reach organs outside the gastrointestinal tract of yellow perch (Perca flavescens) following long-term exposure in large, in-lake mesocosms
AI summary Read the abstract
Researchers exposed yellow perch to environmentally relevant concentrations of polyethylene, polystyrene, and PET microplastics in in-lake mesocosms for ten weeks, finding ingestion scaled with exposure concentration but translocation to liver and muscle was rare, with liver particles averaging 50% smaller than those in the gut, suggesting size-selective uptake across the gut barrier.
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This study investigated microplastic bioaccumulation in yellow perch from Lake Champlain, finding plastic particles in fish tissue near wastewater treatment plant outflows. The results suggest that wastewater effluent is a significant pathway for microplastics entering freshwater food chains, including fish consumed by people.
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Researchers found microplastics not just in the stomachs but also in the muscle tissue and livers of wild-caught fish from a Canadian lake, confirming that microplastics can move from the gut into other body tissues. Interestingly, smaller fish had more translocated particles per gram of body weight than larger fish, and there was no clear pattern of microplastics building up at higher levels of the food chain. The study highlights that people eating fish fillets may be consuming microplastics that have moved beyond the gut into edible tissue.
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