International Science Community Association International Research Journal of Biological Sciences 2278 - 3202 6 1 2017 01 10 Toxic effect of sodium arsenate on Clarias batrachus 15 18 EN Dawane Vinars 1 School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar – 382030, Gandhinagar, Gujarat, India Fulekar M.H. 2 School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar – 382030, Gandhinagar, Gujarat, India Dieudonne Mutangana 1 University of Rwanda, College of Science and Technology, Department of Biology, Avenue de l’Armée, Po. Box 3900, Kigali-Rwanda Innocent Uwintwali 2 University of Rwanda, College of Science and Technology, Department of Biology, Avenue de l’Armée, Po. Box 3900, Kigali-Rwanda Eugѐne Ndisanze M. 3 University of Rwanda, College of Science and Technology, Department of Biology, Avenue de l’Armée, Po. Box 3900, Kigali-Rwanda Mahurpawar Manju 1 Dept. of Zoology, Govt P.G. College, Parasia (Chhindwara) M.P., India > Research Paper 2016 12 15 2017 01 10 Fishes are excellent bio-indicator of heavy metal pollution .Arsenic is heavy metal which effect on behavior of Clarias batrachus. The present study is carried out to evaluate the toxic effect of heavy metal Arsenic on fresh water teleost Clarias batrachus. Behavarioural changes are observed for chronic toxicity test. The two test concentrations 1/10th and 1/16th ppm to the Lc50 at 96 hours as sub lethal concentration which are 1.31ppm and 0.74ppm for sodium arsenate and sub-acute concentration of sodium arsenate for 7, 15,30,45 and 60 days. Copyright@ International Science Community Association