International Science Community Association International Research Journal of Biological Sciences 2278-3202 7 10 2018 10 10 Response of an ornamental fish exposed to Acephate and Carbendazim 1 5 EN Nath Susanta 1 Government General Degree College Singur-712 409, West Bengal, India Paul Pritam 2 Bidhannagar College EB-2, Sector-1, Salt Lake, Kolkata-700 064, WB, India Mondal Santanu 3 Bidhannagar College EB-2, Sector-1, Salt Lake, Kolkata-700 064, WB, India Podder Rahul 4 Government General Degree College Singur-712 409, West Bengal, India > Research Paper 2018 5 15 2018 10 10 An acute toxicity test was performed by using Acephate, an organophosphate and Carbendazim insecticide on Poecilia reticulata commonly known as Guppy fish. This fish was selected due to it’s lervicidal property to control mosquito as well as easy availability in market. Fish were exposed to the Acephate and studied in a static renewal bioassay for different hours and LC10, LC50 and LC90 were estimated respectively. LC50 was calculated 0.894mg.l-1 for 96hr of exposure which was highest 2.705mg.l-1 at 24hr. Whereas, lethal concentrations were measured for fish exposed to Carbendazim for different hours and LC50 was calculated 1.866ppm for 96hr of exposure which was highest 3.056ppm at 24hr. The study revealed a significant effect of the used insecticide on the normal behaviors and lifespan of this beneficial fish. Copyright@ International Science Community Association