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

中生动物浮游生物对碳通量的机械控制：全球海洋通量联合研究综合

• 批准号: 9725976
• 负责人: Michael Roman
• 金额: $ 26.14万
• 依托单位: University of Maryland Center for Environmental Sciences
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-12-15 至 2001-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725976&HistoricalAwards=false
• 关键词: Mechanistic; Controls; Carbon; Flux; Mesozooplankton

*** 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. ***

*** 9725976罗马 作为JGOFS综合和建模计划的一部分，罗曼博士和达姆博士将综合JGOFS中型浮游动物研究。JGOFS综合工作的一个主要目标是确定食物网结构如何影响欣快和下沉碳通量内的碳循环。中型浮游动物放牧（浮游植物和原生动物的消费），草率的喂养（DOM释放），粪便颗粒的生产和向下的碳运输由于昼夜垂直迁移（碳输出的一部分）是这项分析的基本要素。虽然这一建议的重点是中型浮游动物，我们的努力将与其他JGOFS综合努力合作。他们将与其他正在合成和模拟生物控制地球化学通量的小组一起参与。使用来自马尾藻海（ZOOSWAT）、北大西洋（NABE）、赤道太平洋（EqPac）、阿拉伯海（ASPS）和南大洋的JGOFS数据集（AESOPS，如果有的话），以及其他适当的数据（即从VERTEX和SUPER），他们将研究浮游动物生物量，放牧和粪便颗粒生产与浮游植物生物量（按大小）之间的预测关系，原生动物生物量、总初级生产量（按大小）、新生产量和出口流量。研究结果将为欣快带碳循环的现实模型提供必要的参数。 ***