Collaborative Research: Nitrate Flux Associated with Vertically Migrating Phytoplankton in the Central North Pacific Gyre

合作研究：与北太平洋中部环流垂直迁移浮游植物相关的硝酸盐通量

• 批准号: 9423471
• 负责人: Cynthia Pilskaln
• 金额: $ 16.6万
• 依托单位: University of Maine
• 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: 1995-02-15 至 1999-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423471&HistoricalAwards=false
• 关键词: Collaborative; Research; Nitrate; Flux; Associated

9423471 Pilskaln This proposal will address a fundamental problem in biological oceanography format he viewpoint that vertically migrating algal mats in the open ocean are instrumental in redistributing nitrogen within the surface waters of the North Pacific Ocean. Using previously funded shiptime, the project will documents Rhizosolenia mat vertical distribution throughout the upper 100-300 m, the quantitative N inputs, and potential for NO3-release in the surface layers by mats in the central North Pacific gyre. The research will characterize depth of origin, migration times and absolute transport rates by these macroscopic associations and determine if NO3-release by mat decay is taken up by other ambient phytoplankton. In addition, the study will survey other phytoplankton that may be vertical migrators such as Ethmodiscus, Pyrocystis, Halospaera and solitary Phizosolenia to determine if they are also important components of this process. At the conclusion of the study, the project will have examined waters of the central North pacific gyre both east and west of Hawaii. This should lead to a broad spatial understanding of the importance of phytoplankton vertical migration in the oceanic waters of the North Pacific gyre.

小行星9423471 这一建议将解决生物海洋学格式的一个基本问题，他的观点，垂直迁移的藻席在开放的海洋是在北太平洋的表面沃茨内的氮重新分配工具。 利用以前资助的船期，该项目将记录在整个上部100-300米，定量N输入，并在北太平洋环流中心垫在表层NO3-释放的潜力的Rumbersolenia垫垂直分布。 该研究将通过这些宏观关联来表征起源深度、迁移时间和绝对运输速率，并确定其他环境浮游植物是否吸收了垫腐烂释放的NO3。 此外，该研究还将调查其他可能是垂直迁移者的浮游植物，如筛盘藻、甲藻、Halospaera和孤独的Pingulosolenia，以确定它们是否也是这一过程的重要组成部分。 在研究结束时，该项目将检查夏威夷以东和以西的北太平洋环流中心的沃茨。 这将导致对北太平洋环流海洋沃茨中浮游植物垂直迁移重要性的广泛空间理解。