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首页> 外文期刊>RSC Advances >Trophic transfer of Cu, Zn, Cd, and Cr, and biomarker response for food webs in Taihu Lake, China
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Trophic transfer of Cu, Zn, Cd, and Cr, and biomarker response for food webs in Taihu Lake, China

机译：Cu，Zn，Cd和Cr的营养转移，以及中国太湖湖中食品网的生物标志物响应

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摘要

Water, sediments, and aquatic organism samples were collected from Taihu Lake in China. Four types of typical heavy metal (Cu, Zn, Cd, and Cr) were analyzed to evaluate their concentrations and trophic transfer in food webs. The stable nitrogen isotope delta N-15 was used to investigate the trophic interactions. The concentrations of Cd and Zn in the sediments of Taihu Lake exceeded Level I of the China National Quality Standards for Soil. Zn accumulation was identified to increase with the trophic level. The bioconcentration of the four heavy metals in aquatic organisms was evident, with the invertebrates showing the highest bioconcentration factor in the food webs. Several biomarkers were investigated, including metallothionein (MT), malondialdehyde, and Na+/K+-adenosine triphosphatase activity. A positive correlation relationship was found between the MT content and heavy metal accumulation in organism tissues.
机译：从中国太湖湖收集了水，沉积物和水生生物样品。 分析了四种类型的典型重金属（Cu，Zn，Cd和Cr），以评估其浓度和食物网中的营养转移。 稳定的氮同位素δN-15用于研究营养性相互作用。 太湖沉积物中Cd和Zn的浓度超过了中国土壤国家质量标准的I级。 鉴定Zn积累以随着营养水平的增加而增加。 水生生物中四个重金属的生物浓度明显，无脊椎动物显示出食物网中的最高生物浓度因子。 研究了几种生物标志物，包括金属硫蛋白（MT），丙二醛和Na + / K + -denosine三磷酸酶活性。 生物组织中Mt含量和重金属积累之间的阳性相关关系。

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  • 来源
    《RSC Advances》 |2018年第7期|共8页
  • 作者

    Zuo Jinxing; Fan Wenhong; Wang Xiaolong; Ren Jinqian; Zhang Yilin; Wang Xiangrui; Zhang Yuan; Yu Tao; Li Xiaomin;

  • 作者单位

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

    Chinese Res Inst Environm Sci Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci Beijing 100012 Peoples R China;

    Beihang Univ Sch Space &

    Environm 37 XueYuan Rd Beijing 100191 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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