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Microplastic Contamination in Solitary Ascidians from Natural Habitats: Influence of Morphology and Habitat in a Tropical Bay, Sw Atlantic
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Detection of Microplastic Contamination in Shallow Marine Habitats Using Solitary Ascidians: Influence of Morphology and Habitat in a Tropical Bay, SW Atlantic
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A study of four ascidian species in Ilha Grande Bay, Brazil found that Styela plicata, with simple tentacles and branchial folds, retained significantly more microplastic particles than species with different morphologies, and contamination was higher near harbors and in winter. Filter-feeding invertebrates serve as effective bioindicators of local plastic pollution sources, and their morphological variation influences how much microplastic accumulates in marine food webs.
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Researchers studying fish in a tropical bay found that 1 in 5 fish had microplastics in their stomachs, and this happened across all species, sizes, and locations, including areas far from big cities. Even fish-eating predators (which many humans also eat) showed contamination, suggesting plastic pollution is now baked into the food web from top to bottom. Since some of these fish end up on dinner plates, this study is a reminder that microplastic exposure through seafood may be more widespread than we think, and more research is needed to understand what that means for our health.
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