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首页> 外文期刊>Marine ecology >Patterns in megabenthic assemblages on a seamount summit (Ormonde Peak, Gorringe Bank, Northeast Atlantic)
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Patterns in megabenthic assemblages on a seamount summit (Ormonde Peak, Gorringe Bank, Northeast Atlantic)

机译：海山峰顶上的大型底栖动物组合的模式（奥蒙德峰，戈林格银行，东北大西洋）

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摘要

Gettysburg and Ormonde are two shallow peaks located on the Gorringe seamount about 200 and 240km WSW off Cape St. Vincent (Portugal, NE Atlantic), within the Portuguese Economic Exclusive Zone. Despite the ecological importance of the biological assemblages on these peaks and the need to preserve seamounts as valuable habitats, no management plans have been yet implemented at this site, which only recently has been included in the list of Sites of Community Importance of Portugal. Video imagery collected using a ROV during the 2011 Oceana campaigns was used here to analyse qualitative and quantitative patterns of benthic assemblage composition at the summit of the seamount (between 30 and 230m depth). The results suggest that Ormonde is a biologically important area made up of vulnerable marine ecosystem elements that change significantly with depth. These include: kelp beds, in the euphotic zone; encrusting coralline algal communities and solitary colonies or mixed associations of suspension-feeders (scleractinians, gorgonians, antipatharians, encrusting demosponges and ascidians), at the lower limit of the euphotic zone; mixed coral gardens and erect sponges, in the disphotic zone; and dense sponge aggregations, on the upper slope. These results were further used to propose amendments to the European Nature Information System habitat classification as a tool to work towards resolving the seamounts management issue. The results also provide information on taxa and habitats with high ecological value and classified as threatened or vulnerable, which is essential for the implementation of the cornerstones of Europe's biodiversity conservation policy, namely the OSPAR Convention and the EU Habitats Directive.
机译：葛底斯堡和奥蒙德是两个浅峰，位于葡萄牙经济专属区内圣文森特角（西北大西洋）葡萄牙西南海岸约200和240公里的戈林格海山上。尽管这些山峰上的生物群落具有重要的生态意义，并且需要将海山作为重要的栖息地进行保护，但该地点尚未实施任何管理计划，直到最近才将其列入葡萄牙社区重要性地点清单。在这里，使用2011年Oceana运动期间使用ROV收集的视频图像来分析海山山顶（深度在30至230m之间）底栖组合组成的定性和定量模式。结果表明，奥蒙德（Ormonde）是一个重要的生物区，由脆弱的海洋生态系统要素组成，随着深度的变化而发生显着变化。其中包括：在富营养区的海带床；在富营养区的下限上形成珊瑚藻类的藻类群落和单独的殖民地，或混悬的混食动物（硬皮动物，高哥人，抗病者，包裹的demo茎和海鞘）的混合群落；在分散的区域，混合了珊瑚花园和直立的海绵；和高密度海绵聚集体，在上坡。这些结果还被用来提出对欧洲自然信息系统栖息地分类的修正，以作为解决海山管理问题的工具。结果还提供了有关具有较高生态价值并被列为受威胁或易受伤害的生物分类和栖息地的信息，这对于实施欧洲生物多样性保护政策的基石，即OSPAR公约和欧盟人居指令至关重要。

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  • 来源
    《Marine ecology》 |2016年第5期|1057-1072|共16页
  • 作者

    Ramos Manuela; Bertocci Iacopo; Tempera Fernando; Calado Gonçalo; Albuquerque Mónica; Duarte Pedro;

  • 作者单位

    CIMAR ‐ Interdisciplinary Centre of Marine and Environmental Research Porto Portugal;

    Department of Oceanography and Fisheries MARE – Marine and Environmental Sciences Centre HortaAzores Portugal;

    CIMAR ‐ Interdisciplinary Centre of Marine and Environmental Research Porto Portugal;

    Department of Oceanography and Fisheries MARE – Marine and Environmental Sciences Centre HortaAzores Portugal;

    Universidade Lusófona de Humanidades e Tecnologias Campo Grande Departamento de Ciências da Vida Lisbon Portugal;

    Instituto Português de Malacologia (IPM) ZooMarine Albufeira Portugal;

    Fram Centre Norwegian Polar Institute Tromsø Norway;

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  • 正文语种 eng
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  • 关键词

    Gorringe; management; megabenthic assemblages; patterns; seamount; vulnerable marine ecosystems;

    机译：or流;管理;大型底栖动物组合;模式;海山;脆弱的海洋生态系统;

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