Evaluation of Levels of Phosphatases in the Lindane Exposed Fish, Channa punctatus

Abstract

The alterations in the activities of acid and alkaline phosphatase are good indicators of stress due to the exposure of fish to any toxicant. The perturbations in their activities may result in the decreased immune responses and intestinal microflora activity. In the present study, the effect of sublethal concentrations of lindane (0.025, 0.05 and 0.1 mg/l) in different tissues of C. punctatus exposed for 96h has been studied. The data showed decrease in the acid phosphatase (AcP) activity in the following order: gills>muscle>heart>brain>kidney>liver, respectively, and for the Alkaline phosphatase (ALP) the order was gills>liver>muscle> heart>brain>kidney, respectively, for 96h treatment. At highest concentration of lindane (0.1 mg/l) tested; the maximum decrease in AcP activity was recorded in gills (47.11%) and minimum in liver (15.02%). The other organs such as muscle, heart, brain and kidney exhibited 38.12, 30.85, 29.97 and 16.85% decrease, respectively. The activity of ALP showed maximum decrease in gills (27.93%) and minimum in kidney (0.98%). At highest concentration of lindane (0.1 mg/l) tested, the brain, heart, liver and muscle registered 1, 6.29, 18.84 and 14.25% decrease in ALP activity, respectively, under this condition.