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首页> 外文期刊>Marine pollution bulletin >Impacts of dredged material disposal on macrobenthic invertebrate communities: A comparison of structural and functional (secondary production) changes at disposal sites around England and Wales
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Impacts of dredged material disposal on macrobenthic invertebrate communities: A comparison of structural and functional (secondary production) changes at disposal sites around England and Wales

机译：疏material物料处置对大型底栖无脊椎动物群落的影响：英格兰和威尔士各地处置场所结构和功能（二次生产）变化的比较

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摘要

Although the impacts of dredged material disposal in the marine environment have been well studied, there is currently a limited understanding of the associated impacts on benthic function. This study compares macrofaunal structural and functional (based on secondary production estimates) responses to dredged material disposal at 14 sites across the coast of England and Wales. Disposal resulted in significant reductions of total secondary production at seven sites; no sites exhibited significant increases in production estimates. These seven sites were generally those which displayed significant structural impacts. There was no clear relationship between multivariate structural changes and taxonomic contribution to total production, indicating that a lack of change in the former (regarded as a sensitive indicator of change) does not always signify a lack of a significant functional impact. The need to evaluate functional changes, in addition to structural impacts, with respect to dredged material disposal site monitoring is discussed.
机译：尽管已对挖出的物料处置在海洋环境中的影响进行了深入研究，但目前对底栖功能的相关影响了解有限。这项研究比较了英格兰和威尔士沿海14个地点的大型动物的结构和功能（基于二次生产估算）对疏material材料处置的响应。处置导致七个地点的次级生产总量大大减少；没有站点显示出产量估计数的显着增加。这七个地点通常是那些显示出重大结构影响的地点。多元结构变化与生物分类学对总产量的贡献之间没有明确的关系，这表明前者缺乏变化（被视为变化的敏感指标）并不总是表示缺乏重大的功能影响。讨论了除了对结构性影响外，还需要评估疏dr物料处置场的功能变更。

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