Diazinon Effect on Behavior and Morphology of Catfish Clarias batrachus (Linnaeus, 1758)

Abstract

The freshwater catfish, Clarias batrachus was exposed to the Diazinon as an organophosphate herbicide to determine the acute toxicity values for different time periods. The LC50 values obtained in static method were 6.622, 6.546, 6.05 and 5.798 mg/L and in continuous flowthrough system the LC50 values were 5.759, 5.374, 5.249 and 5.191 mg/L respectively for 24, 48, 72 and 96 h. The fishes were thereafter exposed to sub-lethal and lethal concentrations of toxicant to study the changes in glycogen and protein content of the vital organs. The behavioral and morphological changes observed during the study period.