Biochemical changes in certain tissues of Cirrhina mrigala (Hamilton) (Cyprinidae: Cyprniformes) exposed to fenthion

Lebaycid (Fenthion), a common organochloride pesticide shows nontarget effect on the Indian carp, Cirrhina mrigala Hamilton. This study presents a brief report on the impact of incipient lethal levels (1/4^th and 1/10^th of fenthion on the concentration of substrates (carbohydrates, lipids and proteins) in the four important tissues brain, gill, intestine and liver. Maximum decrease in glycogen level was observed in liver tissue (−54.4/30 days) and minimum in Intestine tissue (−0.86/60days). Maximum decrease in protein levels were observed in brain tissue (−40.9/30days) and minimum in Liver tissue (1.6/60 days). Maximum and minimum decrease in lipid levels were observed in the liver tissue (−51.8/30 days and -0.5/60 days).