Evaluation of acute toxicity and behavioral responses of Heteropneustes fossilis (Linn.) exposed to Captan
Journal Title: International Journal of Life Science - Year 2018, Vol 6, Issue 1
Abstract
In the present study, acute toxicity of the fungicide, captan, was evaluated under experimental condition to adult Heteropneustes fossilis. The 96 h LC50 with 95% confidence limits of Heteropneustes fossilis is 6.26 (5.80- 6.64) mg/l. None of the unexposed control fish died and the first fish died 18 h after exposure to captan (9.50 mg/l and 10.5 mg/l). Mortality rate between each dose and mortality rate between 24-96 h depending on time was correlated. In the fish, significant relationship (p<0.05) was recorded between mortality rate and exposure times (24, 48, 72 and 96 h) at all concentrations. Similarly, significant variation was observed between mortality rate of fish at all the exposure concentrations at all the exposure times (p<0.01). The exposed fish showed abnormal behavior depending on dose of captan and duration of exposure.
Authors and Affiliations
S Saha, D Mukherjee, NC Saha
Keywords
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