In this study, zebrafish (Danio rerio), which is a model organism in ecotoxicological research, was used to determine the sublethal effects of etofenprox on aquatic ecosystems. Non-ester synthetic pyrethroid etofenprox (2-(4-ethoxyphenyl)-2-methylpropyl 3-phenoxybenzylether) can be taken into the body either by direct water or indirectly with rainwater and surface waters of pest control programs. Experimental groups were exposed to etofenprox for 48 and 96 hours at the 96th hour LC 50 1/10 (8.1 µg/L) and 1/100 (0.81 µg/L) dose. In order to evaluate genomic oxidative DNA damage, whole body zebra fish were homogenized and DNA isolation was performed. DNA samples are then hydrolyzed and the oxidative damage was measured by commercial kit as EIA. Compared to the control group, low and high doses of 8OHdG in both groups were high. DNA damage level was found to be statistically significantly higher in both doses compared to the 96th hour group exposed to high and low dose etofenprox and the 48th hour group exposed to etofenprox. As a result, it is suggested that the sublethal concentrations of etofenprox has acute genotoxic effect in zebra fish and causes tissue damage and related with the duration of exposure repair mechanisms may be effective.
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