Studies on the impact of a Cypermethrin insecticide on oxygen consumption and certain biochemical constituents of a fish Tilapia mossambica

Abstract

The aim of this study, was to determine the effect of pesticide pyrethroid, Cypermethrin on oxygen consumption and some biochemical parameters in the blood of a fresh water fish, Tilapia mossambica. The LC50 value was 1ppm for 24 h treatment. The rate of oxygen consumption of the fish was studied under sublethal concentration of Cypermethrin at 24, 48, 72 and 96 hours intervals. The protein and triglyceride levels were found to be decreased in all the exposure periods. The above results indicate that Cypermethrin insecticides especially Shakthi*10 is toxic to the fish Tilapia mossambica and the stress response showed by fish are dependent on concentration and time. This sort of studies have considerable relevance for the growing technology of aquaculture and fishery science.