Abstract

HISTOPATHOLOGICAL ALTERATIONS IN GILLS OF TELEOST, CLARIAS BATRACHUS AFTER CADMIUM TOXICITY

Garima Pundir*

Abstract

Cadmium, is a major contaminate of aquatic environment that is toxic towards aquatic organisms even at concentration found in natural waters. Metal uptake by aquatic organisms is two phased process, firstly involving rapid adsorption or surface binding, followed by transport into the cell interior. The gill hyperplasia seen in present study may be induced by metal exposure. These changes resulting from the metal exposure could possibly be due to compensatory come back to prevent the metal entry through the gill cells. It is noted that branchial lesions in gills perturb its function.

Keywords: Cadmium, Clarias batrachus, gills.