Sk. Srivastava et al., ACUTE TOXICITY OF CHLORPYRIFOS TO A FRESH-WATER CATFISH HETEROPNEUSTES FOSSIUS, Journal of advanced zoology, 16(2), 1995, pp. 92-95
A static acute toxicity test was performed to determine the LC(50) val
ue of chlorpyrifos for the freshwater catfish, Heteropneustes fossilis
. The slope function and the upper and lower confidence limits were co
mputed. The LC(50) values for 24,48,72 and 96 h are 5.60, 3.35, 2.60 a
nd 2.20 mg/l respectively.