Effects of lambda-cyhalothrin on fish fingerlings of common carp, cyprinus carpio

The toxicity tests using early life stages of fish are of great importance in assessing risk of growth, reproduction and survival in polluted environments are important tools for good environmental monitoring. In the present study, the toxic effect of Lambda-cyhalothrin to the fingerlings of Common carp Cyprinus carpio was evaluated. The aim of the present work was to study the toxic effects of lambda-cyhalothrin on the total protein, total carbohydrates, amount of cholesterol and sterols. The LC50 of lambda-cyhalothrin were estimated by Static renewal method. The Lambda-cyhalothrin of LC50 was 0.2μl/l, 0.18μl/l, 0.12μl /l, 0.1μl/l at 24h, 48h, 72h, and 96h respectively. The fish exhibited erratic swimming, loss of equilibrium, copious mucus secretion and hitting to the walls of test tubs prior to mortality. During the present investigation we observed significant alterations in the total protein, total carbohydrates and amount of cholesterol and sterol contents in the tissue of Cyprinus carpio exposed to Lambda-cyhalothrin compared to control group. So, that the indiscriminate uses of synthetic pesticide have caused environmental contamination and toxicity to living organisms. The study strongly suggests that the use of eco-friendly products such as bio-pesticide agents which are available abundantly in nature.