Pollution Research Paper

SUB-LETHAL EFFECT OF CYPERMETHRIN ON SUCCINATE DEHYDROGENASE (SDH) ACTIVITY IN VARIOUS ORGAN TISSUES OF CHANNA STRIATUS (BLOCH)

MD. OSMAN AHMED, S.A. MASTAN AND S. RABIA BANU

Abstract

The aim of this study was to investigate the sub lethal effect of Cypermethrin on Succinate dehydrogenase activity in different organ tissues of Channa striatus. The activity of oxidative enzyme SDH significantly decreased in different tissues such as Gills. Kidney, Intestine, Brain and Liver in Channa striatus exposed to sub lethal doses of Cypermethrin, except of 24hrs exposure period. SDH activity steeply decreased from the control, except at 24hrs where there is a sudden increase in the enzyme activity but at 7 day, 15 day, and 20 day there is a decrease in enzyme activity and the maximal decrease at 15day period, but at 30 day period it increase from its earlier decrease at 15 day period and reached nearer to the control. The maximal % suppression in SDH activity in all the tissues of Channa striatus