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Aging enhances the ecological toxicity of polyethylene microplastics to marine medaka larvae (Oryzias melastigma)
Aquaculture Reports
2026
Shaobai Wen,
Jin Liu,
Bigui Lin,
Na Li,
Xiaoping Diao
Summary
Researchers found that UV- and Fenton-aged polyethylene microplastics caused greater harm to marine medaka larvae than virgin plastic, disrupting gut microbiota composition and altering microbial metabolic functions in ways that impaired growth and development, underscoring the need to assess weathered microplastics in ecological risk evaluations.
Polymers
Models