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首页> 外文期刊>EcoHealth >Methylmercury in Marine Ecosystems: Spatial Patterns and Processes of Production, Bioaccumulation, and Biomagnification
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Methylmercury in Marine Ecosystems: Spatial Patterns and Processes of Production, Bioaccumulation, and Biomagnification

机译：海洋生态系统中的甲基汞：生产，生物蓄积和生物放大作用的空间格局和过程

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摘要

The spatial variation of MeHg production, bioaccumulation, and biomagnification in marine food webs is poorly characterized but critical to understanding the links between sources and higher trophic levels, such as fish that are ultimately vectors of human and wildlife exposure. This article discusses both large and local scale processes controlling Hg supply, methylation, bioaccumulation, and transfer in marine ecosystems. While global estimates of Hg supply suggest important open ocean reservoirs of MeHg, only coastal processes and food webs are known sources of MeHg production, bioaccumulation, and bioadvection. The patterns observed to date suggest that not all sources and biotic receptors are spatially linked, and that physical and ecological processes are important in transferring MeHg from source regions to bioaccumulation in marine food webs and from lower to higher trophic levels.
机译：海洋食物网中甲基汞的产生，生物蓄积和生物放大作用的空间变化特征不清，但对于理解源与较高营养水平之间的联系至关重要，例如最终成为人类和野生生物接触媒介的鱼类。本文讨论了控制海洋生态系统中汞供应，甲基化，生物富集和转移的大型和本地过程。尽管全球对汞供应的估计表明重要的海洋甲基汞储集层，但只有沿海过程和食物网是甲基汞生产，生物蓄积和生物平流的已知来源。迄今为止观察到的模式表明，并非所有来源和生物受体在空间上都是联系在一起的，并且物理和生态过程对于将甲基汞从来源区域转移到海洋食物网中的生物富集以及从较低营养级到较高营养级起着重要作用。

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  • 来源
    《EcoHealth》 |2008年第4期|399-408|共10页
  • 作者

    Celia Chen; Aria Amirbahman; Nicholas Fisher; Gareth Harding; Carl Lamborg; Diane Nacci; David Taylor;

  • 作者单位

    Department of Biological Sciences HB 6044 Dartmouth College Hanover NH 03755 USA;

    Civil and Environmental Engineering Department University of Maine 5711 Boardman Hall Orono ME 04469 USA;

    Marine Sciences Research Center Stony Brook University Stony Brook NY 11794 USA;

    Department of Fisheries and Oceans Bedford Institute of Oceanography Dartmouth Nova Scotia B2Y 4A2 Canada;

    Woods Hole Oceanographic Institute MS #25 Woods Hole MA 02543 USA;

    Office of Research and Development Atlantic Ecology Division U.S. Environmental Protection Agency 27 Tarzwell Drive Narragansett RI 02882 USA;

    Department of Biology and Marine Biology Roger Williams University One Old Ferry Road Bristol RI 02809 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    methylmercury; bioaccumulation; trophic transfer; biomagnification; bioadvection;

    机译：甲基汞;生物富集;营养转移;生物放大;生物平流;

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