A Comparative Study On The Effect Of Common Organophosphorous Pesticides Stress On Behavioural Response Of Freshwater Fish Labeorohita (Hamilton, 1822)

Abstract

Agrochemicals, such as fungicides, insecticides, rodenticides, and molluscicides, are all collectively called pesticides which are very harmful to aquatic life and human health. The accumulation of pesticides on soil and water enters into the food chain and affects human health. The present study aims to compare the effects of some common organophosphorus pesticides Chlorpyrifos, and Profenfos on behavioral aspects of Labeorohita (Hamilton). 70 healthy, equal-sized Rohu fish were divided into seven equal groups, one control group, and 6 other treated groups three groups were exposed to Profenfos and another three groups exposed to Chlorpyrifos. Behaviour of fish was observed at intervals of 5, 10, and 15 days. Various behavioural responses were measured qualitatively in terms of normal and abnormal (mild, moderate and severe) behaviour. It is concluded that the toxicity of Profenfos is more than Chlorpyrifos on the behavioural response and morphological deformities of Labeorohita and indiscriminate use of agrochemicals creates lots of environmental problems and harms aquatic ecosystems and human health