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首页> 外文期刊>Coral reefs: journal of the International Society for Reef Studies >Spatial heterogeneity of benthic community assemblages with an emphasis on reef algae at French Frigate Shoals, Northwestern Hawai'ian Islands
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Spatial heterogeneity of benthic community assemblages with an emphasis on reef algae at French Frigate Shoals, Northwestern Hawai'ian Islands

机译：夏威夷群岛西北部法国护卫舰浅滩底栖动物群落的空间异质性，重点是礁藻

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摘要

Reefs in tropical atoll systems have historically been described on a geomorphic basis, and segregated into loosely defined fore-reef, back-reef, and lagoonal reef zones. However, recent oceanographic monitoring data have shown that physical factors within a single geomorphic zone can vary significantly, calling into question whether benthic communities within a single zone are biologically similar. To determine the amount of benthic variability that may occur in a geomorphic zone, percent cover of benthic organisms was determined at the species level for 28 sites in three geomorphic zones at French Frigate Shoals, Northwestern Hawai'ian Islands. Multivariate statistical analyses found most windward fore-reef and back-reef sites to be statistically similar, but considerable variation to exist among sites within calmer lagoonal areas. Surveys revealed macroalgae to dominate over scleractinian coral species at the majority of sites in this healthy, subtropical reef system, although select lagoonal areas were dominated by dense coral communities.
机译：历史上，热带环礁系统中的珊瑚礁是根据地貌描述​​的，并分为松散界定的前礁，后礁和泻湖礁区。但是，最近的海洋学监测数据表明，单个地貌区内的物理因素可能会发生很大变化，这使人们怀疑单个区内的底栖生物群落是否在生物学上相似。为了确定在一个地貌带中可能发生的底栖变化量，在夏威夷西北群岛法国护卫舰浅滩的三个地貌带中的28个点的物种水平上确定了底栖生物的覆盖百分比。多变量统计分析发现，大多数迎风前礁和后礁地点在统计上是相似的，但在较平静的泻湖区域内的地点之间存在相当大的差异。调查显示，在这个健康的亚热带珊瑚礁系统中，大部分藻类在Scleractinian珊瑚物种中占主导地位，尽管某些泻湖地区主要由茂密的珊瑚群落主导。

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