Author(s) :

Tahseen Javaid, Zubair Nawaz, Maheen Talib, Hina Bashir, Sundas Akram.

Volume/Issue :

Abstract :

The extensive use of agricultural pesticides poses a significant threat to aquatic ecosystems, with fish being among the most vulnerable organisms due to their constant exposure to contaminated water bodies. This article investigates the dose-dependent bioaccumulation of three widely used pesticides chlorpyrifos, bifenthrin, and endosulfan in the freshwater fish species Ctenopharyngodon idella (grass carp). These pesticides, commonly detected in agricultural runoff, differ in their chemical properties and persistence, leading to varied accumulation patterns in fish tissues. Research indicates that bioaccumulation in lipid-rich tissues like the liver and muscles increases with exposure concentration and duration. Chlorpyrifos exhibited rapid uptake with notable neurotoxic symptoms, while endosulfan demonstrated high persistence and potential for endocrine disruption. Bifenthrin, though used in smaller quantities, showed strong bioaccumulation and behavioral alterations. The study emphasizes the ecological risks associated with chronic, low-dose exposures and highlights the need for constant monitoring, eco-friendly pest control strategies, and awareness to mitigate pesticide infiltration into aquatic food chains

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