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Physiological Reactions of Poecilia Reticulyata to the Presence of Microplastics in the Aquatic Environment
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A study found that guppies exposed to low concentrations of microplastics showed physiological stress responses, including changes in blood cell counts and gill condition, suggesting even small doses can harm freshwater fish.
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Researchers exposed juvenile guppies to polystyrene microplastics at two concentrations for 28 days and examined impacts on their digestive systems. The study found that microplastic exposure impaired digestive enzyme activity, stimulated intestinal immune responses, and disrupted the gut microbiota community, suggesting that microplastics can compromise intestinal health in freshwater fish.
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