曾艳艺;赖子尼;杨婉玲;高原;李跃飞;庞世勋;

• 1:中国水产科学研究院珠江水产研究所

摘要(Abstract)：

以静水实验法探讨珠江流域主要金属污染物铜和镉对当地天然仔鱼和幼鱼的急性毒性效应。结果显示,铜对西江赤眼鳟和鲴仔鱼(48 h)和广东鲂幼鱼(96 h)的LC50分别为0.066、0.055和0.10 mg·L-1,对应的安全浓度分别为0.006、0.010和0.010 mg·L-1;镉对赤眼鳟和鲴仔鱼(48 h)以及广东鲂幼鱼(96 h)的LC50分别为1.29、0.83和3.20 mg·L-1,对应的安全浓度分别为0.163、0.077和0.320 mg·L-1。其中,铜对上述受试鱼的安全浓度低于或接近我国《渔业水质标准》及《地表水环境质量标准》Ⅱ类水对铜的规定,而镉对这些受试鱼的安全浓度则高于相关标准对镉的规定。研究结果表明,珠江流域铜污染可能会对当地天然仔鱼、幼鱼群体的补充构成一定程度的威胁,但镉污染暂不会对该区域主要鱼类早期群体补充带来严重的生态风险。

关键词(KeyWords)： 铜;镉;广东鲂;赤眼鳟;鲴;LC50;安全浓度

Abstract:

Keywords:

基金项目(Foundation): 广东省海洋渔业科技推广专项A201101I02

作者(Author): 曾艳艺;赖子尼;杨婉玲;高原;李跃飞;庞世勋;

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DOI:

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