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

Wu -0612538 Funds被提供来测试假设，融化的冰是一个重要的铁源，在分层的白令海陆架水在春季的生物生长。 PI将调查在海冰融化前的春季藻类生长期间，海冰覆盖层下的水中的铁是否在大量营养素耗尽之前耗尽。 他还将确定随后的海冰融化是否是导致无冰大陆架表层水中铁持续过量的可用铁的重要来源。 如果可用的铁是在这种环境中的限制微量营养素，拟议的实验将提供一个替代的标准解释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.