BEST: The Role of Ice Melting in Providing Available Iron to the Surface Water of the Eastern Bering Sea Shelf

提供了WU-0612538 Funds来检验这一假设，即融化的冰是春季白令海陆架水生物生长的重要铁源。PI将调查紧邻海冰覆盖下的水中的铁是否在海冰融化前的春季藻类最初生长期间耗尽常量营养素之前耗尽。他还将确定随后的海冰融化是否是有效铁的重要来源，从而导致无冰大陆架表面水中铁的持续过剩。如果可利用的铁在这种环境中是一种有限的微量营养素，那么拟议中的实验将提供一种替代标准解释，即海冰融化对春季浮游植物水华的影响。

Wu - 0612538Funds are provided to test the hypothesis that melting ice is a significant source of iron for biological growth in the stratified Bering Sea shelf water during spring. The PI will investigate whether iron in the water immediately beneath the sea ice cover is depleted before macronutrients are depleted during the initial algal growth in spring prior to sea ice melt. He, also, will determine whether subsequent melting of sea ice is an important source of available iron that leads to a persistent excess of iron in the ice-free shelf surface water. If available iron is a limiting micronutrient in this environment, the proposed experiments will provide an alternative to the standard explanation of the effects of sea ice melting on the spring phytoplankton bloom.