Oxidative Stress Biomarkers in the Fish Samples Collected from Taunsa Barrage

The present research work entitled “oxidative stress biomarkers in the fish samples collected from Taunsa Barrage” was done to measure the activity of antioxidants enzymes in major carps (Labeo rohita, Channa marulius and Cirrhinus mrigala). A condition known as oxidative stress arises when the body produces too many free radicals, which are unstable chemicals, and not enough antioxidants to eliminate them. Numerous pollutants, such as insecticides and pesticides, have an adverse effect on fish, impairing their metabolism. Samples of fish obtained using the nets and immediately frozen. Fish were dissected to retrieve the liver, kidney, gills, and muscles for study. Antioxidants enzymes (Superoxidase dismutase (SOD), peroxidase (POD) and catalase (CAT)) activity was measured. The extent of oxidative stress in the tissues of various fish species was evaluated using POD, SOD, and CAT levels. C. marulius (fourth sampling) has the significantly (P<0.05) greatest "SOD" activity of the group, afterwards C. mrigala and L. rohita.CAT activity was greater in the C. mrigala. L. rohita has the highest (P<0.05) peroxidase activity. The livers of all three fish species showed increased 'Superoxidase dismutase', catalase and peroxidase activity in comparison with various fish organs.