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Cu^(2+)、Zn^(2+)对黑褐新糠虾(Neomysis awatschensis)的毒性作用 被引量:9

Toxic effects of Cu^(2+),Zn^(2+) on Neomysis awatschensis
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摘要 通过在基础海水中添加Cu2+、Zn2+,研究其对黑褐新糠虾(Neomysis awatschensis)的急、慢性毒性影响。包括了Cu2+、Zn2+对黑褐新糠虾在24、48、72和96 h的半致死浓度(LC50),安全浓度(SC)和在生长、成活、繁殖等方面的影响。结果表明:(1)水体中Cu2+对黑褐新糠虾24、48、72和96 hLC50和SC分别是2843、2363、1432、449μg/L和4.49μg/L。Zn2+对黑褐新糠虾24、48、72和96 hLC50和SC分别是10588、2331、1459、664μg/L和6.64μg/L。Cu2+对黑褐新糠虾的毒性大,黑褐新糠虾对Cu2+比对Zn2+更为敏感。(2)当5μg/L≤Cu2+≤80μg/L、10μg/L≤Zn2+≤160μg/L时,黑褐新糠虾在处于各浓度的Cu2+、Zn2+试液中经过60d的饲养,均显示一定程度的毒性作用,其成活率、体长和体长增长率随Cu2+、Zn2+浓度的不断增加都有不同程度的降低,与对照组相比均差异显著(P(0.05)。 This paper deals with the acute and chronic toxic effect of Cu2+,Zn2+ r on survival rates,growth of the Neomysis awatschensis including the values of 24,48,72 and 96 h LC50,and safe concentration(SC) in seawate.The result show that(1) LC50(24,48,72 and 96 h) of Cu2+ in seawater for Neomysis awatschensis is 2843,2363,1432 and 449 μg/L respectively,and the SC of Cu2+ for Neomysis awatschensis is 4.49 μg/L;LC50(24,48,72 and 96 h) of Zn2+ for Neomysis awatschensis is 10588,2331,1459,664 μg/L respectively and SC...
出处 《海洋环境科学》 CAS CSCD 北大核心 2008年第1期33-36,共4页 Marine Environmental Science
基金 江苏省滩涂生物资源与环境保护重点建设实验室开放基金(JLCBE052002) 上海市重点学科建设项目(Y1101) 上海金沙滩投资发展有限公司水生生态与环境修复项目 长江口深水航道治理项目
关键词 黑褐新糠虾 重金属 毒性作用 半致死浓度 Neomysis awatschensis heavy metal toxicity effect LC50
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