Enzymes as Biomarkers of Pollution Stress in Channa punctatus (Bloch 1793) collected from Sawan nallaha, Balrampur, U.P.

Abstract

Oxidative stress, incorporating both antioxidant defences as well as oxidative damage, is a common effect in organisms exposed to xenobiotics in their environment. The studies included in this investigation evaluate the effects of industrial effluent on oxidative stress biomarkers in teleost fishes. So the effect of industrial pollution on the aquatic ecosystem of Sawan nallaha was monitored, by analyzing the different biomarkers antioxidant enzymes. Biochemical parameters in the various tissues (Liver, Kidney, Gills and muscles) of the freshwater snake headed fish, Channa punctatus collected from the upstream (non polluted site) and downstream
(polluted site) of Sawan nallaha Balrampur. The antioxidant enzymes, Superoxide dismutase (SOD) , Catalase (COD) and Peroxidase (POD) activities in liver, kidney, gills and muscles was found to be significantly increased in fishes inhabiting in polluted site of Sawan nallaha. The results of the present study revealed that the fish like other animals, undergo oxidative stress and respond by changes in activity of the antioxidant enzymes.