引用本文:	谢嘉,滕佳,刘永亮,杨顶珑,曹瑞文,陈丽竹,王清,李斐,吉成龙,吴惠丰,丛明,赵建民.Cd²⁺和Pb²⁺单一与复合污染对脊尾白虾的急性毒性效应研究[J].海洋科学,2017,41(5):27-33.

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Cd²⁺和Pb²⁺单一与复合污染对脊尾白虾的急性毒性效应研究
谢嘉^1,2,3, 滕佳^1,3, 刘永亮^1,2, 杨顶珑^1,3, 曹瑞文^1,3, 陈丽竹^1,3, 王清¹, 李斐¹, 吉成龙¹, 吴惠丰¹, 丛明¹, 赵建民^1,2
1.中国科学院烟台海岸带研究所, 海岸带环境过程与生态修复重点实验室;2.中国科学院烟台海岸带研究所牟平海岸带环境综合试验站;3.中国科学院大学

摘要:

近年来, 中国近岸重金属污染问题日趋严重。作者通过研究重金属Cd²⁺和Pb²⁺对脊尾白虾(Palaemon carincauda)的单一及复合急性毒性效应, 为其养殖水质管理提供科学依据。本研究采用半静态急性毒性测定方法, 开展了不同浓度Cd²⁺和Pb²⁺对脊尾白虾96 h内的急性毒性试验。研究结果表明:在单一污染物暴露下, Cd²⁺对脊尾白虾24、48、72、96 h的半数致死质量浓度(LC₅₀)分别为138.699、33.110、9.719、3.650 mg/L, Pb²⁺对脊尾白虾48、72、96 h 的LC₅₀分别为254.541、62.750、29.074 mg/L;Cd²⁺、Pb²⁺对脊尾白虾96 h的安全质量浓度分别为0.365 和2.907 mg/L; 在等浓度配比(1︰ 1)暴露下,Cd²⁺和Pb²⁺复合污染对目标生物在48、72、96 h暴露期间的毒性相加指数(additive index, AI)分别为0.155、0.068、0.258。综上所述, Cd²⁺对脊尾白虾的毒性较Pb²⁺更强, Cd²⁺和Pb²⁺对脊尾白虾的复合污染均表现出较明显的协同作用。

关键词: Cd²⁺ Pb²⁺ 急性毒性复合毒性脊尾白虾(Palaemon carincauda)

DOI：10.11759//hykx20161011004

分类号:

基金项目:中国科学院重点部署项目(KZZD-EW-14); 中国科学院海洋生态与环境科学重点实验室开放基金(KLMEES201301)

Single and joint acute toxic effects of cadmium and lead on Palaemon carincauda

XIE Jia,TENG Jia,LIU Yong-liang,YANG Ding-long,CAO Rui-wen,CHEN Li-zhu,WANG Qing,LI Fei,JI Cheng-long,WU Hui-feng,CONG Ming,ZHAO Jian-min

Abstract:

The presence of heavy metals in the coastal environment has been of great concern due to their non-biodegradable nature. This study aims to investigate single and joint acute toxic effects of Cd²⁺ and Pb²⁺ on Palaemon carincauda and provides the basis for the water quality management of aquaculture. The effects of different concentrations of Cd²⁺ and Pb²⁺ on P. carincauda within 96 h were investigated by using the semistatic acute toxicity test. The results showed the following: (1) The 24, 48, 72 and 96 h median lethal concentrations (LC₅₀) of Cd²⁺ on P. carincauda were 138.699, 33.110, 9.719 and 3.650 mg/L, respectively, and the 48, 72 and 96 h LC₅₀ of Pb²⁺ were 254.541, 62.750 and 29.074 mg/L, respectively. The 96 h safety concentrations (SC) of Cd²⁺ and Pb²⁺ on P. carincauda were predicted to be 0.365 mg/L and 2.907 mg/L, respectively; (2) At a concentration ratio of 1︰1, the additive index values for Cd²⁺ and Pb²⁺ were 0.155, 0.068, and 0.258 during the experiment time of 48, 72 and 96 h, respectively. These results indicated that Cd²⁺ presented higher toxicity toward the shrimps than Pb²⁺. Joint toxic effects of Cd²⁺ and Pb²⁺ demonstrated synergistic effects during the experimental period.

Key words: Cd²⁺ Pb²⁺ acute toxicity joint toxicity Palaemon carincauda