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首页> 外文期刊>Environmental Pollution >Municipal wastewater effluent affects fish communities: A multi-year study involving two wastewater treatment plants
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Municipal wastewater effluent affects fish communities: A multi-year study involving two wastewater treatment plants

机译：市政废水影响鱼类群落：一项涉及两个废水处理厂的多年研究

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摘要

Although effluent from municipal wastewater treatment plants (WWTPs) is a major stressor in receiving environments, relatively few studies have addressed how its discharge affects natural fish communities. Here, we assessed fish community composition over three years along a gradient of effluent exposure from two distinct WWTPs within an International Joint Commission Area of Concern on the Great Lakes (Hamilton Harbour, Canada). We found that fish communities changed with distance from both WWTPs, and were highly dissimilar between sites that were closest to and furthest from the wastewater outfall. Despite differences in the size and treatment technology of the WWTPs and receiving habitats downstream, we found that the sites nearest the outfalls had the highest fish abundances and contained a common set of signature fish species (i.e., round goby Neogobius melanostomus, green sunfish Lepomis cyanellus). Non-native and stress tolerant species were also more abundant near one of the studied WWTPs when compared to the reference site, and the number of young-of-the-year fish collected did not vary along the effluent exposure gradients. Overall, we show that fish are attracted to wastewater outfalls raising the possibility that these sites may act as an ecological trap. Crown Copyright (C) 2019 Published by Elsevier Ltd. All rights reserved.
机译：尽管市政废水处理厂（WWTP）的废水是接收环境中的主要压力源，但相对较少的研究已经探讨了其排放如何影响天然鱼类群落。在这里，我们评估了大湖区国际联合委员会关注的区域（加拿大汉密尔顿港）中两个截然不同的污水处理厂的污水暴露梯度，对三年来的鱼类群落组成进行了评估。我们发现，鱼的群落随着距两个污水处理厂的距离的变化而变化，并且在距离污水排放口最近和最远的地点之间，它们之间的差异很大。尽管污水处理厂的规模和处理技术以及下游接收栖息地的技术有所不同，但我们发现离排污口最近的地点的鱼类丰度最高，并且包含一组共同的标志性鱼类（例如，圆角虾黑鳍金枪鱼，绿色翻车鱼Lepomis cyanellus ）。与参考地点相比，其中一个被研究的污水处理厂附近的非本地和耐压力物种也更加丰富，并且收集的年幼鱼的数量沿污水暴露梯度没有变化。总体而言，我们表明鱼被废水排污所吸引，从而增加了这些地点可能成为生态陷阱的可能性。 Crown版权所有（C）2019，由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《Environmental Pollution》 |2019年第2期|1730-1741|共12页
  • 作者

    McCallum Erin S.; Nikel Kirsten E.; Mehdi Hossein; Du Sherry N. N.; Bowman Jennifer E.; Midwood Jonathan D.; Kidd Karen A.; Scott Graham R.; Balshine Sigal;

  • 作者单位

    McMaster Univ Dept Psychol Neurosci & Behav 1280 Main St West Hamilton ON L8S 4K1 Canada|Swedish Univ Agr Sci SLU Dept Wildlife Fish & Environm Studies SE-90187 Umea Sweden;

    McMaster Univ Dept Psychol Neurosci & Behav 1280 Main St West Hamilton ON L8S 4K1 Canada;

    McMaster Univ Dept Biol 1280 Main St West Hamilton ON L8S 4K1 Canada;

    Royal Bot Gardens 680 Plains Rd W Burlington ON L7T 4H4 Canada;

    Fisheries & Oceans Canada Great Lakes Lab Fisheries & Aquat Sci 867 Lakeshore Rd Burlington ON L7S 1A1 Canada;

    McMaster Univ Dept Biol 1280 Main St West Hamilton ON L8S 4K1 Canada|McMaster Univ Sch Geog & Earth Sci 1280 Main St West Hamilton ON L8S 4K1 Canada|United Nations Univ Inst Water Environm & Hlth 204-175 Longwood Rd S Hamilton ON L8P 0A1 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

    Water quality; Anthropogenic impacts; Great lakes; Ecotoxicology; Contaminants;

    机译：水质;人为影响;五大湖;生态毒理学;污染物;

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