| 栉孔扇贝对无机砷的富集与排出特征研究 |
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| 引用本文： | 孙福新,李 晓,王 颖,吴志宏,刘天红,孙元芹,卢 珺.栉孔扇贝对无机砷的富集与排出特征研究[J].海洋科学,2011,35(4):83-88. |
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| 作者姓名： | 孙福新 李 晓 王 颖 吴志宏 刘天红 孙元芹 卢 珺 |
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| 作者单位： | 山东省海水养殖研究所,山东,青岛,266002 |
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| 基金项目： | 国家海洋局海洋公益性行业科研专项经费项目(200805031) |
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| 摘 要： | 以栉孔扇贝(Chlamys,farreri)为试验生物,应用生物富集双箱动力学模型,研究了暴露在不同质量浓度的As<'3+>溶液中,栉孔扇贝对无机砷的耐受性;通过对富集与排出过程中栉孔扇贝体内无机砷含量的动态监测及对检测结果的非线性拟合,得出栉孔扇贝富集无机砷的吸收速率常数(k<,1>)、排出速率常数(k<,2>)、生...
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| 关 键 词： | 栉孔扇贝(Chlamys farreri) 无机砷 生物富集 排出 |
| 收稿时间： | 2010/7/12 0:00:00 |
| 修稿时间： | 2010/9/26 0:00:00 |
Bio-enrichment and elimination of inorganic arsenic byChlamys farreri |
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| SUN Fu-xin,LI Xiao,WANG Ying,WU Zhi-hong,LIU Tian-hong,SUN Yuan-qin,LU Jun.Bio-enrichment and elimination of inorganic arsenic byChlamys farreri[J].Marine Sciences,2011,35(4):83-88. |
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| Authors: | SUN Fu-xin LI Xiao WANG Ying WU Zhi-hong LIU Tian-hong SUN Yuan-qin LU Jun |
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| Abstract: | The bio-enrichment and elimination of inorganic arsenic in Chlamys farreri were investigated in a semi-static system. Uptake rate constant (k1), elimination rate constant (k2), bio-enrichment factor (BCF), and biological half-life (B1/2) were characterized based on the two-compartment model by nonlinear cure fitting. Under our experimental conditions, the uptake rate constant (k1) and BCF were decreased with the increase of the concentration of As3+, while the elimination rate constant (k2) was not distinctly related. The maximal metal contents in test organism (CAmax) at steady-state were in the linear proportion to As3+ concentrations through short exposure(R2=0.926 7). Elimination of inorganic arsenic from C. farreri was rapidly and completely; the elimination reached to 84.17 % after 30 days. Our results suggest that C. farreri cultivated in the second level of sea water quality standard should be safe. |
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| Keywords: | Chlamys farreri Inorganic arsenic Bio-concentration Elimination |
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