Linkages between sea-ice coverage, pelagic-benthic coupling, and the distribution of spectacled eiders: Observations in March 2008, 2009 and 2010, northern Bering Sea
Linkages between sea-ice coverage, pelagic-benthic coupling, and the distribution of spectacled eiders: Observations in March 2008, 2009 and 2010, northern Bering Sea
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DOI：
10.1016/j.dsr2.2013.03.009
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发表时间：
2013-10-01
影响因子：
3
通讯作者：
Lovvorn, J. R.
中科院分区：
文献类型：
--
作者：
Cooper, L. W.;Sexson, M. G.;Lovvorn, J. R.
2008年3月、2009年3月和2010年3月在圣劳伦斯岛以南的白令海北部进行的基于破冰船的采样提供了关于年度生产周期早期整体生态系统功能的新数据。虽然水柱中的叶绿素浓度(5微米)与其他物理、生物和营养数据一起，结合观测到的海冰动态和顶端捕食者--斑点海象的分布--提供了这些数据。除了由沉积过程决定的底栖食物可获得性之外，海冰动态对眼镜牛的分布也起到了作用，眼镜牛不能总是获得它们喜欢的双壳类猎物的最大生物量。总体而言，数据和观测表明，白令海北部在冬末生物活动活跃，但有很强的大气和水文控制。这些控制预先决定了营养物质和叶绿素的分布、水柱混合以及远洋-底栖生物的耦合。(C)2013爱思唯尔有限公司。保留所有权利。
Icebreaker-based sampling in the northern Bering Sea south of St. Lawrence Island in March of 2008, 2009, and 2010 has provided new data on overall ecosystem function early in the annual productive cycle. While water-column chlorophyll concentrations (5 mu M. These data, together with other physical, biological, and nutrient data, are presented here in conjunction with observed sea-ice dynamics and the distribution of an apex predator, the Spectacled Eider (Somateria fischeri). Sea-ice dynamics in addition to benthic food availability, as determined by sedimentation processes, play a role in the distribution of spectacled eiders, which cannot always access the greatest biomass of their preferred bivalve prey. Overall, the data and observations indicate that the northern Bering Sea is biologically active in late winter, but with strong atmospheric and hydrographic controls. These controls pre-determine nutrient and chlorophyll distributions, water-column mixing, as well as pelagic-benthic coupling. (C) 2013 Elsevier Ltd. All rights reserved.