SYED ASHRAF SIDDIQUE, MD. KAWSER AHMED rAND MIAH MUHAMMED ABDUL QUDDUS
Abstract
Toxic effects of organophosphate pesticide (nogos) on catfish Clarias batrachus, and its translocation and residual accumulation in a pesticide administrated rice-fish ecosystem under laboratory condition was investigated. Toxic effects of organophosphate pesticide (Nogos) on catfish Clarias batracints, was investigated. Highest level of radioactivity was 1.2 mg/g and 0.95 mg/g and 0.85 mg/g in intestine, gills and liver respectively. Mortality trail showed that nogos concentration of 0.595 pl_-)m showed LC,,, to the fish while lower concentrations of 0.085 ppm did not induce any mortality. Highest level of radioactivity was 1.2 mg/g and 0.95 mg/g and 0.85 mg/g in intestine, gills and liver respectively.