Effects of a herbicide on the peroxide metabolism enzymes and lipid peroxidation in carp fish (Hypophthalmichthys molitrix).

A study was made of the peroxide metabolism enzymes in carp fish, and of the effects on these of three different concentrations of the herbicide paraquat. Mainly the changes in the superoxide dismutase, catalase and lipid peroxidation resembled the changes observed in previous intoxication studies on mammals.