| Cu2+和Cd2+对克氏原螯虾幼虾的毒性效应研究 |
| Study on the acute toxicity of Cu2+ and Cd2+ acting on Procambarus clarkii juvenile |
| 投稿时间：2009-09-16 修订日期：2009-11-23 |
| DOI： |
| 中文关键词:克氏原螯虾 半致死浓度 安全浓度 铜 镉 |
| 英文关键词:Procambarus clarkii Semi-lethal concentration Safe concentration Cu2+ Cd2+ |
| 基金项目:2008年第七批省级科技创新与成果转化（苏北科技富民强县）专项引导资金项目（项目编号：BN2008233） |
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| 中文摘要: |
| 采用静水法生物测试,研究了Cu2+和Cd2+对克氏原螯虾幼虾(体重0.0142～0.0308g)的急性毒性作用。试验结果表明,克氏原螯虾对Cu2+、Cd2+均会产生较强的毒性效应,其对Cu2+、Cd2+的耐受性随接触时间延长而明显降低。Cu2+对克氏原螯虾幼虾24h、48h半致死浓度(LC50)分别为30.854mg/L、10.595mg/L;Cd2+对克氏原螯虾幼虾24h、48h、72h半致死浓度(LC50)分别为5.315mg/L、1.371mg/L和0.414mg/L。Cu2+、Cd2+对其的安全浓度(SC)分别为0.375mg/L、0.027mg/L,为相应渔业水质标准的3.8倍和5.5倍,表明克氏原螯虾具有较强耐受Cu2+和Cd2+污染的能力。 |
| 英文摘要: |
| The hydrostatic test was used to research the acute toxicity of Cu2+ and Cd2+ acting on Procambarus clarkii juvenile . Cu2+ and Cd2+ have strong toxic effects for Procambarus clarkii juvenile. The tolerance of the increase in contact time significantly reduced by Cu2+ and Cd2+for Procambarus clarkii juvenile.Test results show that the Cu2+ for Procambarus clarkii juvenile in 24 h, 48h semi-lethal concentration(LC50) were 30.854mg/L、10.595mg/L, Cd2+ for Procambarus clarkii juvenile in 24 h，48h and 72h semi-lethal concentration(LC50)were 5.315mg/L, 1.371 mg/L and 0.414 mg/L respectively. The safe concentration of the Cu2+ and Cd2+ for Procambarus clarkii juvenile were 0.375 mg/L and 0. 027 mg/L respectively，which were 3.8 times and 5.5 times for the corresponding water quality standards of the fisheries. Procambarus clarkii has a strong resistance to Cu2+ and Cd2+ in the capacity of pollution. |
| 董学兴,吕林兰,王爱民,王龙友,缪峻.2010.Cu2+和Cd2+对克氏原螯虾幼虾的毒性效应研究[J].水生态学杂志,31(3):90-93. |
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