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Increasing pesticide application is a serious threat to human health and biodiversity. In nature, pesticides prevail in mixtures; therefore the joint effects of pesticides should be taken into consideration due to their priority in toxicity research when aiming at realistic evaluations. In this study, individual and mixture toxicity of the commonly used organophosphate insecticides- chlorpyrifos and dichlorvos was explored. Healthy and clinically active juveniles of golden mahseer (Tor putitora) were exposed to sub-lethal doses (10% of the 96 h-LC₅₀) of the chlorpyrifos, dichlorvos, and their mixture. Blood sampling was conducted after 24 h and 96 h of exposure, followed by a 1 week recovery period. Among the examined biochemical parameters; blood glucose in dichlorvos treatment; alanine aminotransferase and alkaline phosphatase in chlorpyrifos and dichlorvos treatments; and aspartate aminotransferase and urea in …