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| Acute Toxicity of Propylene Oxide,Acrylic Acid and Isoprene to Juvenile Sea Cucumber Apostichopus j aponicus |
| LUO Yaoming,XU Weiding,LI Duohui,CHEN Danfeng,WANG Xiuyan |
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Abstract Acute toxicity of propylene oxide , acrylic acid and isoprene to juvenile sea cucumber A postichopus j aponicus with body weight of (1 .30 ± 0 .62) g was studied at water temperature of 16—19 ℃ by static bioassay .It was found that LC50 of propylene oxide ,acrylic acid and isoprene to juvenile sea cucumber was 181 .53 ,117 .63 and 70 .40 mg/L for 24 h ,148 .91 ,109 .81 and 68 .28 mg/L for 48 h , 133.62 ,102 .70 and 67 .25 mg/L for 72 h ,and 98 .89 ,100 .34 and 66 .55 mg/L for 96 h ,with safe concentration of 9 .89 ,10 .03 and 6 .66 mg/L ,respectively ,indicating the descendant toxicity order as isoprene(moderate toxicity )> propylene oxide (moderate toxicity )> acrylic acid (low toxicity ) . The findings may provide the reference to ecological toxicology research of propylene oxide ,acrylic acid and isoprene to marine organisms .
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Received: 25 July 2015
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