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Modeling the Impacts of Multiple Environmental Stress Factors on Estuarine Copepod Populations

机译：模拟多个环境压力因素对河口Co足类种群的影响

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摘要

Many studies have focused on natural stress factors that shape the spatial and temporal distribution of calanoid copepods, but bioassays have shown that copepods are also sensitive to a broad range of contaminants. Although both anthropogenic and natural stress factors are obviously at play in natural copepod communities, most studies consider only one or the other. In the present investigation, we modeled the combined impact of both anthropogenic and natural stress factors on copepod populations. The model was applied to estimate Eurytemora affinis densities in the contaminated Scheldt estuary and the relatively uncontaminated Darss-Zingst estuary in relation to temperature, salinity, chlorophyll α, and sediment concentrations of cadmium, copper, and zinc. The results indicated that temperature was largely responsible for seasonal fluctuations of E. affinis densities. Our model results further suggested that exposure to zinc and copper was largely responsible for the reduced population densities in the contaminated estuary. The model provides a consistent framework for integrating and quantifying the impacts of multiple anthropogenic and natural stress factors on copepod populations. It facilitates the extrapolation of laboratory experiments to ecologically relevant end points pertaining to population viability.
机译：许多研究都集中在自然形态的应力因素上，它们塑造了类颅骨co足类动物的时空分布，但是生物分析表明，co足类动物也对多种污染物敏感。尽管人为和自然胁迫因素在天然co足类动物群落中都明显起作用，但大多数研究仅考虑其中一个。在本研究中，我们模拟了人为因素和自然胁迫因素对co足类种群的综合影响。该模型用于评估受污染的Scheldt河口和相对未受污染的Darss-Zingst河口的Eurytemora亲和力密度，与温度，盐度，叶绿素α以及镉，铜和锌的沉积物浓度有关。结果表明温度是造成大肠杆菌亲密度的季节性波动的主要原因。我们的模型结果进一步表明，接触锌和铜是造成污染河口人口密度下降的主要原因。该模型为整合和量化多种人为因素和自然胁迫因素对ogenic足类种群的影响提供了一个一致的框架。它有助于将实验室实验外推到与种群生存力相关的与生态相关的终点。

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  • 来源
    《Environmental Science & Technology》 |2014年第10期|5709-5717|共9页
  • 作者

    John C. Korsman; Aafke M. Schipper; Lisette De Hoop; Benoit Mialet; Tom Mairs; Micky L. M.Tackx; A.Jan Hendriks;

  • 作者单位

    Insitute for Water and Wetland Research, Department of Environmental Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands;

    Insitute for Water and Wetland Research, Department of Environmental Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands;

    Insitute for Water and Wetland Research, Department of Environmental Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands;

    EcoLab (Laboratoire Ecologie Fonctionnelle et Environnement), UPS, INP, Universite de Toulouse, 118 Route de Narbonne, 31062 Toulouse, France,EcoLab, CNRS, 31062 Toulouse, France,LIENSs (Littoral Environnement et Societes) UMR 7266, Universite de La Rochelle-CNRS, 2 rue Olympe de Gouges, 17000 La Rochelle, France;

    Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, B-2160 Wilrijk,Belgium;

    EcoLab (Laboratoire Ecologie Fonctionnelle et Environnement), UPS, INP, Universite de Toulouse, 118 Route de Narbonne, 31062 Toulouse, France,EcoLab, CNRS, 31062 Toulouse, France;

    Insitute for Water and Wetland Research, Department of Environmental Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands;

  • 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);
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