Abstract
In the present study, the histopathological alterations in testes of African catfish Clarias gariepinus, caused by the mercuric chloride were observed. The organism is a representative species and widely used in aquaculture throughout the world. Mercuric chloride is the hazardous pollutant of aquatic environment. The experiment was set for 60 days and the fishes were divided into two groups. First one, the control and second one exposed with lethal concentration of mercuric chloride @ 0.08mg/l. After 60 days of exposure of mercuric chloride in fish Clarias gariepinus, marked degenerative changes were observed in the histoarchitecture of testis. From the present investigation it can be concluded that mercuric chloride can cause deleterious effects in the reproductive assets of the fishes and consequently lead them to be infertile.
