Mechanistic Controls of Carbon Flux by Mesozooplankton: A Joint Global Ocean Flux Study Synthesis

*9725976罗曼作为JGOFS合成和建模倡议的一部分，罗曼博士和Dam将合成JGOFS中浮游动物研究。JGOFS合成工作的一个主要目标将是确定食物网络结构如何影响快感和下沉碳流中的碳循环。中游动物的放牧(消耗浮游植物和原生动物)、草率摄食(DOM释放)、粪便颗粒生产以及碳向下迁移(碳出口的一部分)是这一分析的基本要素。虽然这项提议的重点是中游动物，但我们的努力将与其他JGOFS合成努力合作。他们将与其他正在合成和模拟生物地球化学通量的生物控制的小组一起参与。利用来自马尾藻海(ZOOSWAT)、北大西洋(NABE)、赤道太平洋(EqPac)、阿拉伯海(ASPS)和南大洋(AESOPS，如有)的联合全球海洋观测系统数据集，以及其他适当的数据(即来自Vertex和Super的数据)，他们将审查中游动物生物量、放牧和粪便颗粒生产量与浮游植物生物量(按大小)、原生动物生物量、初级生产总量(按大小)、新生产量和出口通量之间的预测关系。这一结果将为欣快区碳循环的实际模型提供必要的参数。***

*** 9725976 Roman As part of the JGOFS Synthesis and Modeling Initiative, Drs. Roman and Dam will synthesize JGOFS mesozooplankton research. A major objective of the JGOFS Synthesis efforts will be to determine how food web structure influences carbon cycling within the euphoric and the sinking carbon flux. Mesozooplankton grazing (consumption of phytoplankton and protozoa), sloppy feeding (DOM release), fecal pellet production and downward carbon transport due to diel vertical migrators (part of carbon export) are essential elements of this analysis. Although this proposal focuses on mesozooplankton, the our efforts will be collaborative with other JGOFS synthesis efforts. They will participate with other groups who are synthesizing and modeling biological control of biogeochemical fluxes. Using the JGOFS datasets from the Sargasso Sea (ZOOSWAT), North Atlantic (NABE), Equatorial Pacific (EqPac), Arabian Sea (ASPS) and Southern Ocean (AESOPS, when available), as well as other appropriate data (i.e. from VERTEX and SUPER) they will examine the predictive relationships between mesozooplankton biomass, grazing and fecal pellet production with phytoplankton biomass (by size), protozoa biomass, total primary production (by size), new production and export flux. The results will provide essential parameters for realistic models of carbon cycling in the euphoric zone. ***