CAREER: Omnivory and the Fate of Ingested Food in Zooplankton: Implications for Material Fluxes in the Oceans

职业：杂食动物和浮游动物摄入食物的命运：对海洋物质通量的影响

• 批准号: 9521907
• 负责人: Hans Dam
• 金额: $ 40万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9521907&HistoricalAwards=false
• 关键词: CAREER; Omnivory; Fate; Ingested; Food

9521907 Dam A key problem in oceanographic is understanding the factors that effect changes in fluxes of carbon and nitrogen from surface waters to the deep ocean. It has been recognized that planktonic organisms play an important role in the downward flux of carbon and nitrogen Zooplankton, through their ingestion and subsequent egestion of phytoplankton and protozoa biomass, are important agents of export production in the ocean. Although rapidly sinking zooplankton decal pellets have been identified as one of the main mechanisms responsible for downward fluxes of organic, our knowledge in this area remains extremely fragmentary. This research centers on the transformation by zooplankton of phytoplankton and protozoa biomass and its subsequent export in the form of fecal pellets, plus the role of zooplankton vertical migration and phytoplankton aggregates in downward fluxes of carbon and nitrogen in the ocean. ***

9521907 大坝 海洋学的一个关键问题是了解影响从表层水到深海的碳和氮通量变化的因素。 人们已经认识到，浮游生物在碳和氮的向下通量中发挥着重要作用。浮游动物通过摄取和随后排出浮游植物和原生动物生物量，是海洋中出口生产的重要媒介。 尽管快速下沉的浮游动物贴花颗粒已被确定为导致有机物向下通量的主要机制之一，但我们在这方面的知识仍然极其零散。 这项研究的重点是浮游动物对浮游植物和原生动物生物量的转化及其随后以粪便颗粒形式输出，以及浮游动物垂直迁移和浮游植物聚集在海洋中碳和氮向下通量中的作用。 ***