The distribution and speciation of iron along 6°E in the Southern Ocean
The distribution and speciation of iron along 6°E in the Southern Ocean
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DOI：
10.1016/j.dsr2.2003.10.012
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发表时间：
2004-01-01
影响因子：
3
通讯作者：
Turner, DR
中科院分区：
文献类型：
--
作者：
Croot, PL;Andersson, K;Turner, DR
在南部夏末（1997年12月/ 1998年1月）斯堪的纳维亚/南非合作进行的南极巡航中，沿南大洋东大西洋部分（6度）的样带确定了铁的分布和形态。在春冰边缘（SIE）附近，在60度处发现溶解铁浓度升高（> ~ 0.4 nM），同时浮游植物大量繁殖，主要以Phaeocystis sp.为主。这种繁殖在季节性海冰消失后迅速发展。为水华提供燃料的铁极有可能来自海冰融化。在冬季冰缘（Winter Ice Edge， WIE），温度约为55度，溶解铁的浓度较低(
The distribution and speciation of iron was determined along a transect in the eastern Atlantic sector (6degreesE) of the Southern Ocean during a collaborative Scandinavian/South African Antarctic cruise conducted in late austral summer (December 1997/January 1998). Elevated concentrations of dissolved iron (>0.4 nM) were found at 60degreesS in the vicinity of the Spring Ice Edge (SIE) in tandem with a phytoplankton bloom, chiefly dominated by Phaeocystis sp. This bloom had developed rapidly after the loss of the seasonal sea ice cover. The iron that fuelled this bloom was mostly likely derived from sea ice melt. In the Winter Ice Edge (WIE), around 55degreesS, dissolved iron concentrations were low (