Published Paper Details:

Several recent studies have demonstrated the effect of pesticides on freshwater gastropods. Freshwater snails provides valuable system for studding the effect of water pollution on aquatic life. Several behavioral changes were recorded in the freshwater pulmonate snail Lymnaea stagnalis when subjected to mean LC50 concentrations (0.66 ppm) of chlorpyriphos (50%) and cypermethrin (5%). Acute (72 h) exposure to chlorpyriphos (50%) and cypermethrin (5%) inhibited several behavior activities including feeding, locomotion and response to external stimulation rates were reduced, potentially impacting courtship behavior and mucous secretion. It also correlate with the shell deposition and aquatic respiration of snail Lymnaea stagnalis. These results provide initial information needed to assess the potential hazards to chlorpyriphos and cypermethrin on behavioral toxicology of Lymnaea stagnalis. The objective of the current study was to evaluate the exceeding sensitivity of Lymnaea stagnalis to chlorpyriphos (50%) and cypermethrin (5%) and evaluate probable hazards to aquatic animals and ecosystems. Keywords:-Chlorpyriphos (50%), cypermethrin (5%), Lymnaea stagnalis, behavioral toxicology