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The relationship of microplastic pollution between seawater and oyster: A holistic perspective for bioindicator selection
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The Effects of different concentrations of microplastics based on the feeding ability rate of oysters
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Researchers found that oysters exposed to microplastic concentrations above 5 mg/L showed significantly reduced feeding and filtration rates, with higher concentrations causing greater disruption, suggesting that microplastic pollution could impair the health and ecosystem function of commercially and ecologically important shellfish.
Physiological impacts of microplastics on the Pacific oyster Crassostrea gigas: The role of particle size and concentration
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Laboratory experiments on Pacific oysters exposed to microplastics of varying sizes and concentrations found decreased survival rates, increased oxygen consumption, and histological damage to digestive and gill tissues, with effects scaling with concentration. Oysters are global seafood staples and efficient bioaccumulators, meaning physiological damage at environmentally relevant concentrations translates directly into concerns about both aquatic ecosystem health and the safety of oysters in the human diet.
Abundance and characteristics of microplastics in shellfish from Jiaozhou Bay, China
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Researchers found microplastics in both wild and farmed oysters and clams from China's Jiaozhou Bay, estimating that average seafood consumption exposes Chinese consumers to over 1,200 microplastic particles per person per year through shellfish alone.
The impacts of PVC microplastics on physiology and transcriptomic responses of pearl oyster Pinctada fucata martensii
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Pearl oysters (Pinctada fucata martensii) exposed to PVC microplastics for 10 days showed elevated superoxide dismutase activity and significant transcriptomic changes across multiple biological pathways, with oxidative stress partially reversing during a 6-day recovery period. The disruption of antioxidant defenses and broad gene expression changes in commercially farmed oysters at environmentally relevant PVC concentrations raises concerns about microplastic impacts on aquaculture productivity and the safety of shellfish consumed by humans.
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