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| 镉和汞两种重金属离子对四角蛤蜊的急性毒性 | |
| 引用本文： | 王晓宇,王清,杨红生.镉和汞两种重金属离子对四角蛤蜊的急性毒性[J].海洋科学,2009,33(12):24-29. |
| 作者姓名： | 王晓宇 王清 杨红生 |
| 作者单位： | 1. 中国科学院,海洋研究所,山东,青岛,266071;中国科学院,研究生院,北京,100049;河北工业大学,海水资源高效利用化工技术教育部工程研究中心,天津,300130 2. 中国科学院,海洋研究所,山东,青岛,266071;中国科学院,研究生院,北京,100049 3. 中国科学院,海洋研究所,山东,青岛,266071 |
| 基金项目： | 国家基金委创新研究群体科学基金项目，国家973计划资助项目，国家农业部公益性计划资助项目，国家海洋公益性行业科研专项资助项目 |
| 摘 要： | 采用毒理学实验方法,比较研究了Cd~(2+)和Hg~(2+)对四角蛤蜊(Mactra veneriformis Reeve)急性毒性效应的差异,以期为进一步评价重金属离子对四角蛤蜊的毒性效应和作用机理等提供理论依据.死亡概率单位和实验液浓度对数的线性回归分析表明,Cd~(2+)对四角蛤蜊在24、48和96 h的半致死浓度(LC_(50))分别为15.961、5.149和2.383 mg/L,Hg~(2+)的LC_(50)分别为3.714、0.607和0.207 mg/L;Cd~(2+) 和Hg~(2+) 对四角蛤蜊的安全质量浓度分别为0.023 8 mg/L和0.002 1 mg/L,分别是我国渔业水质标准(GB11607-89)限定量的4.76倍和4.02倍. |
| 关 键 词： | 四角蛤蜊(Mactra veneriformis Reeve) 急性毒性 半致死浓度 安全质量浓度 |
| 收稿时间： | 2009/1/12 0:00:00 |
| 修稿时间： | 2009/2/26 0:00:00 |
Acute toxicities of Cd2+ and Hg2+on Mactra veneriformis Reeve |
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| WANG Xiao-yu,WANG Qing and YANG Hong-sheng.Acute toxicities of Cd2+ and Hg2+on Mactra veneriformis Reeve[J].Marine Sciences,2009,33(12):24-29. | |
| Authors: | WANG Xiao-yu WANG Qing and YANG Hong-sheng |
| Abstract: | In order to evaluate acute toxicities of Cd2+ and Hg2+ on Mactra veneriformis Reeve and compare the difference of toxicity among the heavy metals, experiments were carried out according to toxicological methods. M. veneriformis was exposed to various concentrations of heavy metals for 96 h and mortalities were recorded every day. LC50 (lethal concentration 50, the concentration which produces the death of 50% of the exposed population) was calculated by the probability regression method by SPSS. The 24 h LC50, 48 h LC50and 96 h LC50 for Cd2+ were 15.961 mg/L, 5.149 mg/L and 2.383 mg/L, respectively, whereas for Hg2+ was 3.714 mg/L, 0.607 mg/L and 0.207 mg/L, respectively. The safe concentrations for M. veneriformis were 0.023 8 mg/L for Cd2+ and 0.002 1 mg/L for Hg2+, which were 4.76 times and 4.02 times higher than the fishery water quality standards (GB11607-89), respectively. These data will provide a theoretical basis for evaluating the toxic effect and studying the toxic mechanism of heavy metals on M. veneriformis. |
| Keywords: | Cd~(2+) Hg~(2+) Mactra veneriformis Reeve Cd~(2+) Hg~(2+) acute toxicity LC_(50) safe concentration |
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