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首页> 外文期刊>Environmental toxicology and chemistry >Tracing Salmon-Derived Nutrients and Contaminants in Freshwater Food Webs Across a Pronounced Spawner Density Gradient
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Tracing Salmon-Derived Nutrients and Contaminants in Freshwater Food Webs Across a Pronounced Spawner Density Gradient

机译：跨越明显的Spawner密度梯度在淡水食物网中追踪鲑鱼衍生的营养物和污染物

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摘要

Many have demonstrated that anadromous Pacific salmon are significant vectors of nutrients from the ocean to freshwaters. Recently, however, it has been recognized that salmon spawners also input significant quantities of contaminants. The objectives of this paper are to delineate the extent to which salmon-derived nutrients are integrated into the freshwater food web using δ~(15)N and δ~(13)C and to assess the influence of the salmon pathway in the accumulation of contaminants in rainbow trout (Oncorhynchus mykiss). We found that the δ~(15)N and δ~(13)C of food web components were related positively and significantly to sockeye salmon (Oncorhynchus nerka) spawner density. Contaminant concentrations in rainbow trout also positively and significantly were related to sockeye salmon spawner density. These data suggest that the anadromous salmon nutrient and contaminant pathways are related and significantly impact the contaminant burden of resident fish.
机译：许多证据表明，太平洋大马哈鱼是从海洋到淡水的重要营养元素。然而，近来已经认识到鲑鱼产卵器也输入了大量的污染物。本文的目的是利用δ〜（15）N和δ〜（13）C来描述鲑鱼营养素被整合到淡水食物网中的程度，并评估鲑鱼途径对鱼的积累的影响。虹鳟鱼（Oncorhynchus mykiss）中的污染物。我们发现食物网成分的δ〜（15）N和δ〜（13）C与大马哈鲑（Oncorhynchus nerka）的产卵密度呈正相关且显着相关。虹鳟鱼中的污染物浓度也与红鲑鲑的产卵密度呈正相关且与显着相关。这些数据表明，有害的鲑鱼养分和污染物途径是相关的，并极大地影响了鱼类的污染物负担。

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  • 来源
    《Environmental toxicology and chemistry》 |2007年第6期|1100-1108|共9页
  • 作者

    Irene Gregory-Eaves; Marc J. Demers; Lynda Kimpe; Eva M. Kruemmel; Robie W. Macdonald; Bruce P. Finney; Julfs M. Blais;

  • 作者单位

    Departrnent of Biology. McGill University, 1205 Docteur Penfield, Montreal, Quebec, H3A 1B1, Canada Department of Biology, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario, KIN 6N5, Canada;

    Department of Biology, University of Ottawa, 150 Louis Pasteur. Ottawa, Ontario, K1N 6N5, Canada;

    Department of Biology, University of Ottawa, 150 Louis Pasteur. Ottawa, Ontario, K1N 6N5, Canada;

    Department of Biology, University of Ottawa, 150 Louis Pasteur. Ottawa, Ontario, K1N 6N5, Canada;

    Institutc of Ocean Sciences, Department of Fisheries and Oceans. 9860 West Saanich Road, Sidney, British Columbia, V8L 4B2, Canada;

    Institute of Marine Science, University of Alaska Fairbanks, Fairbanks, Alaska 99775-7220, USA;

    Department of Biology, University of Ottawa, 150 Louis Pasteur. Ottawa, Ontario, K1N 6N5, Canada;

  • 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

    persistent organic pollutants; stable isotopes; salmon; biotransport; food web;

    机译：持久性有机污染物;稳定同位素三文鱼;生物运输食物网;

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