Effect of sublethal concentration of lindane on fish behaviours and histopathological response of the fish liver in Heteropneustes fossilis

The experimental fish under the exposure of lindane noticed the surface behaviour restlessness, loss of co-ordination laboured breathing increase mucous secretion and ultimately twisting start swimming with head down position the long exposure the histological alternation of gill revealed that specially the pella ster cell shrunken observation of liver enlarge nucleus cytoplasmic concentration was much distinct and might local forget of necrosis fission of cell might due to carcinogenic formation of neoplastic tissues pesticides passed in the cells by crossing. The cell membranes were interferes the enzyme system in the cells and changed their vital activities of physiological and morphological functions.