Probability graph for 96-hr LC50 and lethal concentrations (mg L-1) determined for Cirrhinus mrigala.

Normal Distribution (Maximum Likelihood Estimates at 95% Confidence Interval); Log (Mortality) = -1.7899 + 0.032048 concentration + 31.203; SE = 0.003664; LC50 : 55.8504 mgL-1; SE : 2.8401; Confidence Interval : 50.3752 – 61.8090; Lethal Concentration: 128.4401 mgL-1; SE: 9.2527; Confidence Interval : 113.4692 – 151.5690; Deviance Chi-Square Value =7.825; Goodness of fit test, p = 0.729.