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Application of biological traits to further our understanding of the impacts of dredged material disposal on benthic assemblages

机译:应用生物学特性进一步了解疏understanding材料处置对底栖动物群的影响

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摘要

While the effects of coastal disposal of dredged material on benthic assemblage structure have been well studied, our understanding of the mechanism of such responses, and their potential ecological implications, remain relatively unknown. Data from a licenced disposal site off the northeast coast of England are analysed to address this and improve our ability to make informed licencing decisions for this activity. Assemblages within the disposal site displayed reduced number of species and total invertebrate density, an altered assemblage taxonomic structure, and a shift towards a greater numerical dominance of less-productive individuals. Following separate analyses of biological response and effect traits, a novel approach for marine benthic trait analysis, we identify the traits responsible (i.e. response traits) for the observed structural alterations. Furthermore, analysis of the effect traits revealed that the assemblages characterising the disposal site possess a greater bioturbative capability compared to those not directly impacted by disposal. (C) 2016 Elsevier Ltd. All rights reserved.
机译:虽然已经很好地研究了沿海疏disposal材料对底栖组合结构的影响,但我们对这种反应机理及其潜在生态学意义的理解仍然相对未知。对来自英格兰东北沿海的许可处置场所的数据进行了分析,以解决此问题,并提高我们为此项活动制定明智的许可决策的能力。处置场内的组合显示出物种数量减少和总无脊椎动物密度降低,组合分类结构发生变化,并且向生产力较低的个体更大的数字优势转变。在对生物响应和效果特征进行单独分析之后,这是一种用于海洋底栖生物特征分析的新方法,我们确定了观察到的结构变化的负责任特征(即响应特征)。此外,对效果特征的分析表明,与未直接受到处置影响的组件相比,表征处置地点的组件具有更高的生物扰动能力。 (C)2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Marine pollution bulletin》 |2016年第1期|180-192|共13页
  • 作者单位

    Ctr Environm Fisheries & Aquaculture Sci, Pakefield Rd, Lowestoft NR33 0HT, Suffolk, England;

    Ctr Environm Fisheries & Aquaculture Sci, Pakefield Rd, Lowestoft NR33 0HT, Suffolk, England;

    Ctr Environm Fisheries & Aquaculture Sci, Pakefield Rd, Lowestoft NR33 0HT, Suffolk, England;

  • 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

    Disposal; Effect traits; Response traits; Function; Benthos; Licencing;

    机译:处理;效果特质;响应特质;功能;Benthos;许可;

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