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首页> 外文期刊>Deep-Sea Research >Echinoid associations with coral habitats differ with taxon in the deep sea and the influence of other echinoids, depth, and fishing history on their distribution
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Echinoid associations with coral habitats differ with taxon in the deep sea and the influence of other echinoids, depth, and fishing history on their distribution

机译：类固醇与珊瑚生境的联系因深海中的分类单元而异，其他类固醇，深度和捕捞历史对其分布的影响

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Patterns of habitat use by animals and knowledge of the environmental factors affecting these spatial patterns are important for understanding the structure and dynamics of ecological communities. Both aspects are poorly known for deep-sea habitats. The present study investigates echinoid distributions within cold water coral (CWC) habitats on continental margins off France, Australia, and New Zealand. It further examines the influence of habitat-related variables that might help explain the observed distribution of echinoid taxa.& para;& para;Six echinoid taxa were examined from video and photographic transects to reveal taxon-specific distribution patterns and habitat-related influences. The Echinoidea were found in all habitats studied, but tended to aggregate in architecturally complex habitats associated with living cold-water corals. However, a taxon-specific investigation found that such associations were largely an artefact of the dominant taxa observed in a specific region. Despite the food and shelter resources offered to echinoids by matrix-forming coral habitats, not all taxa were associated with these habitats, and some had a random association with the habitats examined, while others displayed non-random associations.& para;& para;Echinoid distribution was correlated with several variables; the presence of other echinoids, depth, and fishing history were the most influential factors.& para;& para;This study indicates that image data can be a useful tool to detect trends in echinoid habitat associations. It also suggests that refinement of the methods, in particular with studies conducted at a more precise taxon and habitat scale, would facilitate better quantitative analyses of habitat associations and paint a more realistic picture of a population's ecology. Most deep-sea ecological studies to date have been conducted at a relatively coarse taxonomic and habitat resolution, and lack sufficient resolution to provide useful information for the conservation of vulnerable deep-sea habitats.
机译：动物对栖息地的使用方式以及影响这些空间方式的环境因素的知识对于理解生态群落的结构和动态非常重要。对于深海栖息地，这两个方面都鲜为人知。本研究调查了法国，澳大利亚和新西兰以外大陆边缘的冷水珊瑚（CWC）生境中的类固醇分布。它进一步检查了与栖息地相关的变量的影响，这些变量可能有助于解释所观察到的棘皮类类群的分布。＆para;＆para; para从视频和照相断面中检查了六个棘皮类类群，以揭示特定类群的分布模式和与生境相关的影响。在所有研究过的栖息地中都发现了棘突类动物，但趋向于聚集在与活的冷水珊瑚有关的建筑复杂的栖息地中。但是，特定分类群的调查发现，这种关联很大程度上是在特定区域中观察到的主要分类群的人工产物。尽管通过基质形成的珊瑚栖息地为类固醇提供了食物和庇护所资源，但并非所有类群都与这些栖息地相关联，有些与所研究的栖息地具有随机关联，而另一些则显示出非随机关联。类固醇的分布与几个变量相关。影响最大的因素是其他类chin虫的存在，深度和捕鱼历史。本研究表明，图像数据可以作为检测类chin虫栖息地关联趋势的有用工具。它还表明，方法的改进，特别是在更精确的分类单元和生境规模下进行的研究，将有助于更好地定量分析生境关联，并描绘出更加真实的人口生态图景。迄今为止，大多数深海生态研究都是在相对粗略的分类学和栖息地分辨率下进行的，并且缺乏足够的分辨率，无法为保护脆弱的深海栖息地提供有用的信息。

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