Exposure of juvenile turbot ("Scophthalmus maximus") to contaminated microplastic diet: oxidative stress biomarkers, erythrocytic nuclear abnormalities and histopathological effects

Polyethylene Microplastics Induce Concentration- and Time-Dependent Hematophysiological Impairment and Oxidative Stress Following Tissue Accumulation in Rock Bream (Oplegnathus Fasciatus)

Changes in hematological parameters and plasma components of olive flounder, Paralichthys olivaceus exposed to acute microplastics

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Researchers exposed juvenile olive flounder to polyethylene microplastics at concentrations up to 2,500 mg/L for 96 hours and observed significant reductions in blood glucose, cholesterol, calcium, and liver enzyme AST without causing mortality. These findings indicate that acute microplastic exposure induces measurable blood physiological disruptions in fish even at sublethal doses.

Physiological Alterations and Immune Modulation in Fish Exposed to Microplastics

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Researchers reviewed the physiological and immunological effects of microplastic exposure in fish, finding that these particles smaller than 5 mm induce a range of biological disruptions including immune modulation, oxidative stress, and systemic health impacts with broader implications for aquatic ecosystem integrity.

Toxicity Impact of Polyethylene Microplastics on Biochemical Parameters and Oxidative Stress in Benni Fish (Barbus sharpeyi)

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Benni fish exposed to increasing concentrations of polyethylene microplastics showed significant liver enzyme disruption, elevated cholesterol and triglycerides, and clear signs of oxidative damage in their cells. These dose-dependent biochemical changes suggest that microplastic exposure causes systemic physiological stress in fish, raising concerns about the health of species humans consume.