S.R. Manikandan, M. Sukumaran,
Abstract
Experiments were conducted to study toxic effect of sodium arsenate on haematological parameters of the freshwater catfish Mystus vittatus. LC50 value of sodium arsenate was calculated for a period of 96hrs. M. vittatus exposed to sub lethal doses such as 0.15, 0.75, 1.5 and 2.0 ppm sodium arsenate. Sodium arsenate toxicity induced a significant decrease in Haemoglobin content, and RBC count and increase in WBC count.