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首页> 外文期刊>Marine pollution bulletin >Isotopic signatures of eelgrass (Zostera marina L) as bioindicator of anthropogenic nutrient input in the western Baltic Sea
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Isotopic signatures of eelgrass (Zostera marina L) as bioindicator of anthropogenic nutrient input in the western Baltic Sea

机译：鳗草（Zostera marina L）的同位素特征，是波罗的海西部人为营养输入的生物指示剂

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摘要

Eutrophication is a global environmental problem. Better management of this threat requires more accurate assessments of anthropogenic nitrogen (N) inputs to coastal systems than can be obtained with traditional measures. Recently, primary producer N isotopic signatures have emerged as useful proxy of such inputs. Here, we demonstrated for the first time the applicability of this method using the widespread eelgrass (Zostera marina) in the highly eutrophic Baltic Sea. Spatial availability of sewage N across a bay with one major sewage outflow predicted by eelgrass δ~(15)N was high near and downstream of the outflow compared to upstream, but returned to upstream levels within 4 km downstream from the outfall. General conclusions were corroborated by traditional eutrophication measures, but in contrast to these measures were fully quantitative. Eelgrass N isotope ratios therefore show high potential for coastal screens of eutrophication in the Baltic Sea, and in other areas with eelgrass meadows.
机译：富营养化是一个全球性的环境问题。更好地应对这种威胁，需要比传统措施更准确地评估人为沿海系统输入的人为氮（N）。近来，主要的生产者N同位素签名已经成为此类输入的有用代理。在这里，我们首次证明了这种方法在高度富营养化的波罗的海中使用分布广泛的鳗gra（Zostera marina）的适用性。鳗鱼的δ〜（15）N预测，一个海湾有一个主要的污水流出，整个海湾的污水N的空间利用率比上游要高，但在污水下游4 km内又回到上游。传统的富营养化措施证实了一般结论，但与这些措施相反，这些措施是完全定量的。因此，鳗草的N同位素比率显示出在波罗的海以及其他有鳗草草甸的地区进行富营养化沿海筛查的巨大潜力。

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  • 来源
    《Marine pollution bulletin》 |2013年第1期|64-70|共7页
  • 作者

    Philipp R. Schubert; Rolf Karez; Thorsten B.H. Reusch; Jan Dierking;

  • 作者单位

    CEOMAR, Helmholtz Center for Ocean Research Kiel, Evolutionary Ecology of Marine Fishes, Dustembrooker Weg20, D-24105 Kiel, Germany;

    State Agency for Agriculture, Environment and Rural Areas Schleswig-Holstein (LLUR), Hamburger Chaussee 25, D-24220 Flintbek, Germany;

    CEOMAR, Helmholtz Center for Ocean Research Kiel, Evolutionary Ecology of Marine Fishes, Dustembrooker Weg20, D-24105 Kiel, Germany;

    CEOMAR, Helmholtz Center for Ocean Research Kiel, Evolutionary Ecology of Marine Fishes, Dustembrooker Weg20, D-24105 Kiel, Germany;

  • 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

    Nitrogen; Stable isotopes; δ~(15)N; Sewage; Eutrophication; Water quality;

    机译：氮;稳定同位素;δ〜（15）N;污水;富营养化水质;

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