ACUTE TOXICITY OF BALLAST WATER ON Clarias gariepinus JUVENILES

The indiscriminate discharge of ballast water into the aquatic environment could bioaccumulate in food chain and pose serious problems for animal human health. Biological monitoring involving use organisms provides good indication environmental pollution by toxic materials wastewaters. In this study, Clarias gariepinus juveniles were exposed to different concentrations under laboratory conditions determine 96 h LC50 value. acute toxicity was found be 28.1 ml/L with lower upper confidence limits 3.59 20.80 respectively. Juveniles showed abnormal behaviours including restlessness, erratic swimming, loss balance, respiratory distress death. degrees abnormalities directly proportional concentration.