EFFECT OF CADMIUM NITRATE ON ACUTE TOXICITY OF FISH CHANNA PUNCTATUS AT 48 HR. BY STATISTICAL METHOD

This study was carried out on ?sh channa punctatus to investigate the lethal concentration of cadmium nitrate on ?sh channa punctatus at 48 hr. Experiment procedure was repeated ?ve times at the selected cadmium nitrate concentrations, noting the number of ?sh killed. The mean value was taken. These values were taken to determine LC50 value for 48 hr.