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首页> 外文期刊>Environmental toxicology and chemistry >EFFECTS OF SEDIMENT COMPOSITION ON CADMIUM BIOACCUMULATION IN THE CLAM MERETRIX MERETRIX LINNAEUS
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EFFECTS OF SEDIMENT COMPOSITION ON CADMIUM BIOACCUMULATION IN THE CLAM MERETRIX MERETRIX LINNAEUS

机译：沉积物组成对垂体螯虾镉生物累积的影响

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摘要

Abstract-Sediment particulates can be ingested by benthic animals, and the bioavailability of associated metals strongly depends on their speciation in the sediments. Different sedimentary components have distinct physiochemical characteristics and result in different biological responses from animals. Therefore, the bioaccumulation of particle-bound trace metals may be different. In the present study, bioaccumulation of cadmium adsorbed on various (hydr)oxide minerals, that is, ferric hydroxide, aluminum hydroxide, and manganese dioxide, in the clam Meretrix meretrix Linnaeus was studied. The results showed that the accumulation rate of cadmium varied for different mineral-adsorbed cadmium. The bioaccumulation of metal (hydr)oxide-adsorbed cadmium in M. meretrix followed the order Cd-MnO_2 > Cd-A1(OH)_3 > Cd-Fe(OH)_3. The type of mineral determines both the assimilation efficiency and ingestion rate, and consequently controls the bioaccumulation of adsorbed cadmium.
机译：底栖动物可以摄入沉积物颗粒，而相关金属的生物利用度在很大程度上取决于其在沉积物中的形态。不同的沉积成分具有不同的理化特性，并导致动物产生不同的生物学反应。因此，颗粒结合的痕量金属的生物积累可能会有所不同。在本研究中，研究了蛤Me（Meretrix meretrix Linnaeus）中吸附在各种（氢氧化）氧化物矿物上的镉的生物富集，这些矿物是氢氧化铁，氢氧化铝和二氧化锰。结果表明，镉的积累速率随不同的矿物吸附镉而变化。金属（氢）氧化物吸附的镉在白僵菌中的生物积累遵循Cd-MnO_2> Cd-Al（OH）_3> Cd-Fe（OH）_3的顺序。矿物质的类型决定了同化效率和摄入速率，因此控制了吸附镉的生物积累。

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  • 来源
    《Environmental toxicology and chemistry》 |2013年第4期|841-847|共7页
  • 作者

    Xing Wu; Lingtian Xie; Liying Xu; Shaofeng Wang; Yongfeng Jia;

  • 作者单位

    Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, China;

    Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, China;

    Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, China;

    Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, China;

    Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bioaccumulation; cadmium; (hydr)oxide minerals; meretrix meretrix linnaeus;

    机译：生物蓄积镉;（氢）氧化物矿物;meretrix linnaeus;

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