Vol. 7, Issue 4 (2019)
The toxicity effect of Lamda Cyhalothrin on Heteropneustes fossilis
Author(s): Dhruv Kumar, Mamta Kumari and Kalpna Gupta
Abstract: The LC50 value for Heteropneustes fossilis was calculated 6.88µg/l using lambda-cyhalothrin as toxicant Lethal concentration for 50% mortality is defined as LC50 value for a particular species against a particular pesticide. This can be calculated by using different doses against the organism and tested for mortality. Then after a massive statistical calculation, the final LC50 value has been estimated which is lethal up to 50% mortality of organism. Then the sub lethal concentrations are decided by dividing with 10 to minimize the risk of mortality for further studies if any.LC50 value for Heteropneustes fossilis were calculated as 6.93µg/l. The LC50 value in the present study is temperature regulated and also depends on water parameters. The concentrations 0.032 and 0.043 mg/kg were found lethal for Heteropneustes fossilis as mortality was observed within 5 days. At 0.03 mg/kg or below mortality was not observed even after 28 days of exposure. However, fish exhibited erratic movements due to the toxic effect of Lamda -cyhalothrin.
Pages: 1356-1358 | 243 Views 51 Downloads
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How to cite this article:
Dhruv Kumar, Mamta Kumari, Kalpna Gupta. The toxicity effect of Lamda Cyhalothrin on Heteropneustes fossilis. Int J Chem Stud 2019;7(4):1356-1358.
