Iron Speciation and Its Biological Availability in Seawater: A Workshop

9314179 WELLS围绕开放海洋浮游植物的铁限制及其在现在和过去调节全球气候中的潜在作用的争议，突出表明人们对海水中铁的物种形成和生物有效性知之甚少。最近已经开发了几种新的方法，提高了我们测量海水中“溶解”和颗粒部分中总铁浓度的能力，然而，没有一种方法专门针对铁的种类或其对浮游植物的可利用性。我们迫切需要在铁化学方面具有理论和分析专长的化学家，以及在铁的藻类生理方面具有专长的生物学家，以便：1)建立对铁化学和藻类对铁的吸收的当前理解水平，2)确定具体的需求和研究目标。将召开一个由青年和资深科学家组成的小型国际研讨会来解决这一需求。讲习班的目标是促进跨学科的辩论和研究，以发展更好地确定铁在海洋生物地球化学循环和全球系统中的作用所需的分析工具。

9314179 WELLS The controversy surrounding iron limitation of phytoplankton in the open ocean and its potential role in regulating global climate, both in the present and past, has highlighted how little is known about the speciation and biological availability of iron in seawater. Several new methodologies have been developed recently that improve our ability to measure total iron concentrations in "dissolved" and particulate fractions of seawater, however, none address specifically the speciation of iron or its availability to phytoplankton. There is a tremendous need to gather together chemists with theoretical and analytical expertise in iron chemistry and biologists with expertise in the algal physiological aspects of iron to: 1) establish the current level of understanding of iron chemistry and the algal uptake of iron, 2) identify the specific needs and research goals. A small international workshop comprised of both young and senior scientists to address this need will be convened. The objective of the workshop will be to foster cross-disciplinary debate and studies towards developing the analytical tools needed to better define the role of iron in marine biogeochemical cycles and in the global system.