Ice‐associated phytoplankton blooms in the southeastern Bering Sea
Ice‐associated phytoplankton blooms in the southeastern Bering Sea
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DOI：
10.1029/2006gl028849
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发表时间：
2007-03
影响因子：
5.2
通讯作者：
M. Jin;C. Deal;Jia Wang;V. Alexander;R. Gradinger;S. Saitoh;Takahiro Iida;Z. Wan;P. Stabeno
中科院分区：
文献类型：
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作者：
M. Jin;C. Deal;Jia Wang;V. Alexander;R. Gradinger;S. Saitoh;Takahiro Iida;Z. Wan;P. Stabeno
白令海东南部与冰相关的浮游植物大量繁殖会对食物网结构产生严重影响，从低热带地区的生产到海洋渔业。通过耦合远洋和海冰藻类成分，我们的一维生态系统模型成功地重现了 1997 年和 1999 年在 NOAA/PMEL 系泊 M2 观察到的与冰相关的藻华。模型结果表明，与冰相关的水华是由海冰融化释放的海冰藻播种的。为了使与冰有关的水华生长并达到该地区浮游植物水华的典型规模，冰融化导致的低盐度分层之后一定不能发生会破坏分层的强烈混合事件。与冰有关的水华对年度初级生产影响不大，但对浮游植物物种的变化以及水华的时间和规模产生了重大影响。这些变化加上全球变暖导致的生态系统逐渐转变，可以极大地改变白令海的生态系统。
Ice‐associated phytoplankton blooms in the southeastern Bering Sea can critically impact the food web structure, from lower tropic level production to marine fisheries. By coupling pelagic and sea ice algal components, our 1‐D ecosystem model successfully reproduced the observed ice‐associated blooms in 1997 and 1999 at the NOAA/PMEL mooring M2. The model results suggest that the ice‐associated blooms were seeded by sea ice algae released from melting sea ice. For an ice‐associated bloom to grow and reach the typical magnitude of phytoplankton bloom in the region, ice melting‐resulted low‐salinity stratification must not be followed by a strong mixing event that would destroy the stratification. The ice‐associated blooms had little impacts on the annual primary production, but had significant impacts in terms of shifting phytoplankton species, and the timing and magnitude of the bloom. These changes, superimposed on a gradual ecosystem shift attributed to global warming, can dramatically alter the Bering Sea ecosystem.