Abstract
Effects of suspended solids(SS) on the survival rate,RNA/DNA ratio and DNA damage of Marsupenaeus japonicus juvenile crab were investigated in this study.The results indicated that the juvenile crabs were not sensitive to the lower concentration SS(≤ 500 mg L-1).Furthermore,the survival ratio of juvenile crabs was not significantly different in the higher concentration SS groups(≥ 1 000 mg L-1).But the RNA/DNA ratio decreased,and the DNA damage parameters as comet cell rate,tail length and tail moment increased dramatically in the high concentration SS groups.Our results suggested that the parameters of RNA/DNA ratio and DNA damage were the effective biomarkers for assessing the effects of SS on the juvenile crab.
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