Microplastics – Ecotoxicological Effects Observed in Adult Zebrafish

According to a report published May 24, 2020 online in the journal Aquatic Toxicology by researchers with East China Normal University, Shanghai, China https://www.sciencedirect.com/science/article/abs/pii/S0166445X2030271X?via%3Dihub#! “… Microplastic pollution has drawn the attention of both scientists and the public regarding their potential ecotoxicological risks … we carried out aqueous exposure experiments to adult zebrafish with polystyrene microplastics (5 μm) at a wide range of concentrations … Our results showed the gastrointestinal tract (GIT) was the dominant microplastic accumulation site in zebrafish, followed by the gill, whereas no microplastics were detected in the brain or muscle … there were no signs of oxidative stress or other histological changes found in the fish … We found that the zebrafish became hyperactive after microplastic exposure … and stayed at manic and active states much longer … the present study suggests that micro-sized microplastics can induce obvious behavioural abnormality at concentrations that some other toxicological endpoints may not warn effects …” #Microplastics #PlasticWaste #SingleUsePlastic