TOXICOLOGICAL EFFECTS OF A BINARY MIXTURE OF METALS (Fe+Mn) ON THE OXIDATIVE STRESS OF MAJOR CARPS

Oxidative stress caused by various pollutants in water can be overcome different mechanisms aquatic organisms. Antioxidant enzymes play major role to minimize the hazardous effect of heavy metals fish. Superoxide dismutase is one antioxidant enzyme that converts superoxide radical into hydrogen peroxide (H2O2) and thus free radicals. Therefore, aim this research was evaluate activity (SOD) organs (liver, kidney, gills muscles) Catla catla Cirrhina mrigala exposed 1/3rd 1/4th concentrations 96-hr LC50 Fe+Mn. These experiments were conducted glass aquaria with three replications each concentration for 1 month controlled laboratory conditions. SOD significantly increased liver both fish species compared control group. Maximum Fe+Mn mixture measured as 46.55±7.58 43.69±5.34 UmL-1 gills, respectively, at while recorded 33.36±6.72 34.16±3.19 UmL-1, respectively. Similarly, decrease mrigala. (52.30±7.33 UmL-1) observed which 46.95±3.93 UmL-1. The all treated un-treated groups found lower muscles than other organs.