Abstract

In the present study, the fish, Clarias gariepinus was exposed to 0.08 mg/l mercuric chloride for a period of 60 days. The fishes were divided into two groups. Group first was kept as control and Group second was exposed to 0.08 mg/l mercuric chloride. In the exposure period the drastic changes like disintegration and loosening of hepatic parenchyma, bunching of hepatocytes, enucleation and a reduction in the amount of hepatocytes was observed and finally necrosis was also persistent in the liver of the exposed fish conferring that mercuric chloride can harm the liver histology and can ultimately lead the fish and its consumers to be unhealthy.