Impact of Methyl Parathion (An Organophosphate) on the Behavioral Response of Heteropnetues Fossilis (Bloch)

Abstract

To study the acute toxicity of Methyl Parathion to the freshwater food fish Heteropneustes fossillis exposed to this concentration. Behavioral changes (Resting period, opercular movement, air gulping and s- jerks and mucus secretion) were observed during acute exposure. The present investigation has been designed to study the effect of sub lethal concentrations of Methyl Parathion on the behavior changes of Heteropneuste fossilis (Bloch) after exposure to different doses. The present study shows that behavioral alterations such as alternation in opercular movements, surfacing, swimming, jumping, and mucous secretion.