Acute toxicity of commonly used organophosphates and carbamates to Labeo rohita fingerlings.
Organophosphates and carbamates are major toxicants causing pollution of inland water bodies, as well as having a significant effect on non-target species such as fish. In this study, the 96 hour LC50 of the most commonly used organophosphates (profenofos and triazophos) and carbamates (carbofuran and carbaryl) was determined in native Labeo rohita fingerlings. Pesticides were applied to fingerlings that had been grown under optimised standard conditions under a maintained static bioassay system. Probit analysis was used for the determination of LC50 values, which were ascertained as 6.64, 0.32, 1.40 and 8.24 mg/L for triazophos, profenofos, carbofuran and carbaryl, respectively. Acute toxic stress was observed with subjects exhibiting behavioural intoxication including suffocation, lying on the bottom, erratic swimming, lethargy and downward movements and gulping prior to mortality.
The current research work was planned to investigate …
The present study deals with the analysis of different indices, length weight relationship and age-length relationship of Cyprinion acinaces and Carasobarbus apoensis. The…
Specimens of Heteropneustes fossilis were treated with various levels of …