Abstract
The effect of hexavalent chromium [Cr (VI)] on the static bioassay of
Cyprinus carpio (500±9.5g body weight) was assessed by exposing randomly selected 70 breeders to 50, 100, 150, 200, 250, 300 and 350mg/l Cr (VI) dosage for 96 hours in cemented tanks (250 rgm size) @ 10 breeders/tank under optimal conditions to find out the lethal concentration at which fifty percent mortality (LC50) has occurred. Control group containing 10 breeders / tank was also maintained for the same period. Results showed LC50 value of 191mg/l by Finney’s probit analysis. It was further observed that toxicity of Cr (VI) increased in C. carpio with the increase in time and concentration of Cr (VI) as compared to control
SHAHEEN TAYYBAH, AKHTAR TANVEER, ASHRAF MUHAMMAD. (2005) ACUTE TOXICITY STUDIES OF HEXAVALENT CHROMIUM IN THE COMMON CARP, CYPRINUS CARPIO , Punjab University Journal of Zoology, Volume 20, Issue 2.
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