The effects of exposure to sub-lethal copper and cadmium concentrations on biochemical factors of one year old Persian sturgeon, Acipenser persicus

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Abstract

The aim of this study was to determine the 96h LC50 of copper and cadmium, and also, to
evaluate the effects of their sub-lethal dose on stress factors in Persian sturgeon, Acipenser
persicus. Obtained results from Probit analysis showed 96h LC50 values of 0.502 and
14.78mg/l for copper and cadmium, respectively. Also, in single sub-lethal exposures, 72
juveniles (130±19g) were exposed to 0.026 and 0.68mg/l of copper and cadmium in semistatic
conditions, and some stress-related biochemical factors were assessed in 1, 7 and 14
days. According to the obtained results, plasma glucose and cortisol were increased (P0.05) differences in plasma and liver protein contents between
experimental groups and controls with the exception of copper treatment at the first day of
sampling when plasma protein contents showed significant increases, but decreased
significantly (P

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Iranian Scientific Fisheries Journal
Volume 20, Issue 2
March and April 2011
Pages 61-72

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