The present work revealed the destructive effects of ultraviolet radiation-A on the morphological, histological and biochemical characteristics of the early developmentalstages of Aafrican catfish, Clarias gariepinu (Burchell, 1822)....

This work revealed the destructive effects of sublethel doses of 4-nonylphenol on the heamatological parameters, biochemical variables and hormonal activity of the adults African Catfish, Clarias gariepinus. Also, histopathological and ultrastructure studies of some organs using TEM confirmed these effects....