Toxicological effects of a carbaryl and 2,4-d sodium salt on blood biochemistry of a freshwater catfish, Heteropneustes fossilis (bloch)

Abstract

he aim of the present work was to evaluate the comparative effects of a carbaryl (Carbamate) insecticide and 2,4D sodium salt (Herbicide) on carbohydrate metabolites and blood chloride levels of a freshwater catfish, H. fossilis, at different concentrations and time intervals. The catfish shows significance differences in their biochemical indices at acute and subacute concentration for acute (96h) and short (10-20 days) term intervals but no remarkable changes were observed in sublethal concentrations at long ( 30-60 days) term to both the toxicants. It is also observed that carbaryl is more toxic to fish than 2,4-D sodium salt.