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首页> 外文期刊>Marine ecology >Assemblage structure is related to slope and depth on a deep offshore Pacific seamount chain
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Assemblage structure is related to slope and depth on a deep offshore Pacific seamount chain

机译：组合结构与太平洋深海海上山链上的坡度和深度有关

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Scientific study has generated a range of hypotheses about the ecological structure and function of seamounts. Interpretations of these ideas and data are vital to understanding how seamount communities will respond to anthropogenic impacts. Here, we examine how diversity and structure of seamount assemblages vary with depth and slope of the sea floor. We conducted ROV video transects on three seamounts of the Taney Seamount Chain in the Northeast Pacific Ocean. Depth and slope were both related to assemblage structure on the Taney seamounts. Depth differences were seen in alpha- and beta-diversity but not density. Beta-diversity and density but not alpha-diversity varied with slope. Overall, slope and depth together explained 14-31% of beta-diversity. The findings suggest that differences in beta-diversity as related to depth gradients may differ among onshore and offshore and/or between shallow and deep summit seamounts. Specifically, we hypothesize that differences in productivity and depth gradients among seamounts may generate different patterns of beta-diversity.
机译：科学研究产生了一系列有关海山生态结构和功能的假设。这些想法和数据的解释对于理解海山社区将如何应对人为影响至关重要。在这里，我们研究海山组合的多样性和结构如何随海床的深度和坡度而变化。我们在东北太平洋的塔尼海山链的三个海山上进行了ROV视频横断面。深度和坡度都与塔尼海山的组合结构有关。深度差异见于α-和β-多样性，但未见密度。 β多样性和密度，但α多样性没有随斜率变化。总体而言，坡度和深度共同解释了β-多样性的14-31％。研究结果表明，与深度梯度相关的β多样性差异可能在陆上和近海之间和/或浅山顶和深山顶海山之间有所不同。具体来说，我们假设海山之间的生产力和深度梯度的差异可能会产生不同的β多样性模式。

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