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首页> 外文期刊>Polar biology >Cadmium and copper contents in a freshwater fish species (brook trout, Salvelinus fontinalis) from the subantarctic Kerguelen Islands
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Cadmium and copper contents in a freshwater fish species (brook trout, Salvelinus fontinalis) from the subantarctic Kerguelen Islands

机译：亚南极克格伦群岛的淡水鱼类（溪鳟，Salvelinus fontinalis）中的镉和铜含量

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摘要

The subantarctic Kerguelen Islands (49°S, 70°E) contain freshwaters among the most isolated in the world from direct human activities. Cadmium and copper concentrations were analyzed in muscle and liver tissues of 57 non-migratory brook trout (Salvelinus fontinalis) inhab iting the Sud River of Kerguelen Islands. The mean cadmium concentration in liver was 1.13 μg/g dry wt, within the range of levels measured in liver of marine fish from the Southern Ocean. Muscular Cd levels (0.12 μg/g dry wt) were roughly ten times higher than those measured in Kerguelen's marine fish species. Copper levels were very high in the two organs (62.27 μg/g dry wt in liver and 3.02 μg/g dry wt in muscle) compared to those detected in fish from the Southern Ocean. Regarding the seasonal trend, the highest Cu and Cd muscular levels were measured in fish at the end of the austral winter, whereas the highest hepatic levels were observed at the end of the austral summer. Moreover, hepatic cadmium levels were higher in females than in males. These results could be related to brook trout spawning physiological preparations and foraging behavior during the summer period. We provide here the first results about Cu and Cd levels in liver and muscle of a freshwater fish species in an insular subantarctic context. They are in agreement with the high cadmium contamination found in fish of the Southern Ocean.
机译：亚南极克格伦群岛（49°S，70°E）含有淡水，是世界上最直接的人类活动之一。分析了克尔格伦群岛南河中57条非迁移性河鳟（Salvelinus fontinalis）的肌肉和肝脏组织中的镉和铜浓度。肝脏中镉的平均浓度为1.13μg/ g干重，处于南大洋海鱼肝脏中测得的水平范围内。肌肉中Cd含量（干重0.12μg/ g）大约比Kerguelen海洋鱼类中的含量高出十倍。与在南部海洋鱼类中检测到的铜含量相比，两个器官中的铜含量非常高（肝脏中的干重为62.27μg/ g，肌肉中的干重为3.02μg/ g。关于季节趋势，在南方冬季结束时鱼中的铜和镉的肌肉水平最高，而在南方夏季结束时则观察到最高的肝水平。此外，女性的肝镉水平高于男性。这些结果可能与河鳟在夏季产卵的生理准备和觅食行为有关。我们在这里提供了有关岛南极岛下淡水鱼类肝脏和肌肉中Cu和Cd水平的第一个结果。它们与南部海洋鱼类中发现的高镉污染相一致。

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  • 来源
    《Polar biology》 |2011年第3期|p.397-409|共13页
  • 作者

    A. Jaffal; S.Paris-Palacios; S. Jolly; A. F. Thailly; L. Delahaut; E. Beall; H. Roche; S. Biagianti-Risbourg; S. Betoulle;

  • 作者单位

    Universite de Reims Champagne-Ardenne,EA 2069 Vignes et Vins de Champagne-Stress et Environnement,Laboratoire d'Eco-Toxicologie, 51687 Reims, Cedex 2, France;

    Universite de Reims Champagne-Ardenne,EA 2069 Vignes et Vins de Champagne-Stress et Environnement,Laboratoire d'Eco-Toxicologie, 51687 Reims, Cedex 2, France;

    Institut National de 1'Environnement Industriel et des Risques (INERIS), Unite d'Eco-toxicologie in vitro et in vivo,BP2, 60550 Verneuil-en-Halatte, France;

    IPEV Institut Polaire Francais, 29280 Plouzane, France;

    Universite de Reims Champagne-Ardenne,EA 2069 Vignes et Vins de Champagne-Stress et Environnement,Laboratoire d'Eco-Toxicologie, 51687 Reims, Cedex 2, France;

    ECOBIOP, UMR 1224 INRA-Universite de Pau-Pays de l'Adour, 64310 St-Pee-sur-Nivelle, France;

    ESE, UMR 8079, Universite Paris-Sud, CNRS, 91405 Orsay, France;

    Universite de Reims Champagne-Ardenne,EA 2069 Vignes et Vins de Champagne-Stress et Environnement,Laboratoire d'Eco-Toxicologie, 51687 Reims, Cedex 2, France;

    Universite de Reims Champagne-Ardenne,EA 2069 Vignes et Vins de Champagne-Stress et Environnement,Laboratoire d'Eco-Toxicologie, 51687 Reims, Cedex 2, France;

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  • 正文语种 eng
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  • 关键词

    cadmium; copper; brook trout; freshwater salmonids; subantarctic; Southern Ocean;

    机译：镉;铜;溪鳟鱼淡水鲑鱼;亚南极的南部海洋;

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