Defying Dissolution: Discovery of Deep-Sea Scleractinian Coral Reefs in the North Pacific.
Defying Dissolution: Discovery of Deep-Sea Scleractinian Coral Reefs in the North Pacific.
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DOI：
10.1038/s41598-017-05492-w
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发表时间：
2017-07-14
影响因子：
4.6
通讯作者：
Miller K
中科院分区：
文献类型：
--
作者：
Baco AR;Morgan N;Roark EB;Silva M;Shamberger KEF;Miller K
深海珊瑚礁是支持全球渔业的具有重要生态和生物意义的区域。没有观测到中太平洋和东北太平洋的深海珊瑚礁，再加上那里有浅层文石饱和层(ASH)和高的碳酸盐溶解速率，这支持了北太平洋不可能形成珊瑚礁的假设。尽管如此，我们还是报告了在夏威夷群岛西北部的六座海山和帝王海山链上发现了活的珊瑚礁，深度为-732 m，文石饱和状态(ΩArag)为0.71-1.33.尽管火山灰沿着链条向西北方向移动时变得更深，但生物礁的深度分布变得更浅，表明火山灰对它们的分布影响很小。较高的叶绿素向西北移动可能部分解释了珊瑚礁的地理分布。主成分分析表明，洋流也是其分布的一个重要因素，但无论是叶绿素还是现有的海流数据都不能解释意外的深度分布。需要进一步的环境数据来阐明这些珊瑚礁分布的原因。在这一区域发现形成礁石的硬壳动物令人关切，因为一些地点位于拖网渔业活跃的海山上。
Deep-sea scleractinian coral reefs are protected ecologically and biologically significant areas that support global fisheries. The absence of observations of deep-sea scleractinian reefs in the Central and Northeast Pacific, combined with the shallow aragonite saturation horizon (ASH) and high carbonate dissolution rates there, fueled the hypothesis that reef formation in the North Pacific was improbable. Despite this, we report the discovery of live scleractinian reefs on six seamounts of the Northwestern Hawaiian Islands and Emperor Seamount Chain at depths of 535–732 m and aragonite saturation state (Ωarag) values of 0.71–1.33. Although the ASH becomes deeper moving northwest along the chains, the depth distribution of the reefs becomes shallower, suggesting the ASH is having little influence on their distribution. Higher chlorophyll moving to the northwest may partially explain the geographic distribution of the reefs. Principle Components Analysis suggests that currents are also an important factor in their distribution, but neither chlorophyll nor the available current data can explain the unexpected depth distribution. Further environmental data is needed to elucidate the reason for the distribution of these reefs. The discovery of reef-forming scleractinians in this region is of concern because a number of the sites occur on seamounts with active trawl fisheries.
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影响因子：
3.7
作者：
Davies AJ;Guinotte JM
通讯作者：
Guinotte JM
影响因子：
5.2
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
Parker, Steven J.
DOI：
10.1016/j.dsr.2007.07.001
发表时间：
2007-10-01
影响因子：
2.4
作者：
Baker, A. R.;Weston, K.;Cape, J. N.
通讯作者：
Cape, J. N.