Physiological changes in common carp exposed to pyrethroid pesticides using well water

Abstract

The current research was carried out to assess the negative impacts of water cypermethrin concentrations on certain hematological and biochemical parameters and stress hormones in the juvenile common carp Cyprinus carpio L. for 96 hours. The level of mortality increased significantly following the exposure of common carp to cypermethrin and increasing the exposure level. The cypermethrin has a detrimental impact on fish hematological and biochemical parameters. The hematological profiles (LYM, MON, GRA, Hb, RBC, MCV, and Hct) decreased significantly with exposure of common carp to cypermethrin and increasing the level of exposure. Exposing fish to cypermethrin led to a significant rise in the level of triglycerides, AST, ALT, and ALP and a significant decline in the level of cholesterol. The levels of cortisol and T3 were significantly increased following the exposure of common carp to cypermethrin. While, significant reduction in AChE levels was found by exposing common carp to cypermethrin. This research concluded that hematological, biochemical, and stress hormone parameters were adversely affected by exposing juvenile common carp to cypermethrin.

Keywords

• Pesticides, cypermethrin, common carp Cyprinus carpio, haematological parameters, biochemical parameters, stress hormones.