| 栉孔扇贝对铜的富集与排出特征研究 |
| Study on Bioaccumulation and Elimination of Chlamys farreri to Copper |
| 投稿时间：2009-11-12 修订日期：2010-04-13 |
| DOI： |
| 中文关键词:栉孔扇贝 Cu2+ 耐受性 富集 排出 双箱动力学模型 指示生物 |
| 英文关键词:Chlamys , farreri Cu2+ Tolerance Accumulation Elimination Two-compartment model Indicator |
| 基金项目:国家海洋局海洋公益性行业科研专项经费项目，黄渤海重点海域贝类养殖环境安全评价及其监控体系技术研究（２００８０５０３１）。 |
|
| 摘要点击次数: 2768 |
| 全文下载次数: 2251 |
| 中文摘要: |
| 通过暴露实验研究了栉孔扇贝（Ｃｈｌａｍｙｓｆａｒｒｅｒｉ）对铜离子（Ｃｕ２＋）的耐受性，实验暴露３５ｄ之后将栉孔扇贝移入自然海水排出３０ｄ，观察其体内铜含量变化规律。耐受实验结果表明，栉孔扇贝对Ｃｕ２＋较为敏感；富集实验结果表明，栉孔扇贝体内的铜含量与暴露溶液里的Ｃｕ２＋浓度呈正相关；排出实验结果表明，在排出实验初期，其体内的铜含量明显减少，其体内铜的排出与排出时间正相关。应用双箱动力学模型，通过非线性拟合得到了栉孔
扇贝富集Ｃｕ２＋的吸收速率常数ｋ１、排出速率常数ｋ２、生物富集系数ＢＣＦ、栉孔扇贝体内铜含量（ＣＡｍａｘ）、生物学半衰期Ｂ１／２等动力学参数。分析结果表明，双箱动力学模型可用于栉孔扇贝对Ｃｕ２＋的生物富集与排出实验。另外，栉孔扇贝可潜在的作为监测重金属Ｃｕ２＋污染的指示生物。 |
| 英文摘要: |
| This paper studied the tolerance of Chlamys farreri to copper. Exposed Chlamys farreri to the copper test solution 35 days and then transferred them to the nature seawater for 30 days. The purpose of the test was to find the relationship of the copper content in the tissue of Chlamys farreri. The results of tolerance test showed that Chlamys farreri is more sensitive with copper ion. The accumulation test results was that the content of the copper in the tissue of Chlamys farreri was positive correlation with the copper ion concentration in the test solution. At the early days of elimination period，the content of copper in the tissue of Chlamys farreri made an obvious decrease phenomenon，its elimination was positive correlation with elimination time. Based on the two-compartment model, the kinetic parameters(accumulation rate constant k1，elimination rate constant k2，bio-concentration factor BCF，biological half life( B1/2)and maximum equilibrium concentration(CnAmax)were obtained by non-linear regression.It was validated that two-compartment model could be able to used on the study of bioaccumulation and eliminationof Chlamys farreri to copper. In the other hand，Chlamys , farreri was an potential indicator on the observation of copper pollution.
|
| 孙福新,王颖,吴志宏.2010.栉孔扇贝对铜的富集与排出特征研究[J].水生态学杂志,31(6):110-115. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
