Stress response and toxicity studies on zebrafish exposed to endosulfan and imidacloprid

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Tainted water is responsible for the weak growth, disease outbreak, reproduction efficiency and also for survival and death of fish. To our knowledge, this is the first study to report the combined effects on oxidative stress and histopathology in zebrafish exposed to endosulfan and imidacloprid present in water.The present study revealed that the pesticides stimulated the antioxidant enzyme activities (CAT and SOD) at low concentrations, but high concentrations of pesticides and prolonged exposure duration decreased the activity of both enzymes. Based on the present study, it may be concluded that environmental pollutioncan be evaluated by measuring biochemical responses in organisms against stress.All the negative effects of pesticides must be taken into account while using these agrochemicals for insect-pest control in agricultural fields surrounding freshwater ecosystems. Thus, it is recommended that proper maintenance and measures are necessary in order to keep these water bodies clean and safe.

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