Published Paper Details:

ABSTRACT: Throughout the world organophosphate pesticides are widely employed in agriculture sectors because of its rapid degradation and less persistence. Blind use of these pesticides bound to affect the non-target organisms, fish being one of the most prominent among these. The aim of the present investigation was to determine the acute toxicity of Acephate 95% sg an organophosphate insecticide and as well as behavioural alterations in freshwater fish Labeo rohita, experimental fish were exposed to different concentrations of Acephate. The LC50 values of Acephate for 24hr, 48hr, 72hr and 96hr was found in 2000mg/l, 1800mg/l, 1650mg/l and 1550mg/l respectively and the LC50 values were calculated in Finney Probit Method. The effect of Acephate in Fish were showed uncontrolled behavior like mucus secretions, decreased agility, increased movement of opercula, rapid jerk movement, lightening of the body colour, erratic and irregular swimming were seen in exposure time of the toxicant.