Bacterial Production and N Uptake in the Equatorial Pacific

赤道中太平洋是一个非常大的区域， 初级生产，假设支持一个 全球新生产的重要部分。 新的生产 是重要的，因为它与垂直通量的联系， 从海洋上层到下层的物质及其隐含的作用 海洋中放射性气体循环的联系 (the温室问题）。 该项目是美国联合全球海洋 通量研究（JGOFS）在赤道太平洋中部， 来回答一些baic关于异养生物 赤道太平洋的细菌 异养细菌是 被认为是赤道太平洋的重要组成部分 系统为：1.它们是一种主要的 溶解有机氮和碳; 2.它们为氮 富含约4.5的碳氮比; 3.他们 包括大部分的生物质，并且有时可能 大于浮游植物;和4.他们占了很大一部分 在一些海洋系统中的铵吸收分数。 本项目将研究异养细菌在 赤道太平洋的氮循环， 具体测量细菌产量、生物量， 细菌对氮的吸收

The central equatorial Pacific is a very large region with high primary production, which is hypothesized to support a substantial faction of global new production. New production is important because of its link to the vertical flux of meterial from the upper to the lower ocean and the implied role of that link in how the ocean cycles radiatively-active gases (the greenhouse problem). This project constitues a part of the US joint global ocean flux study (JGOFS) in the central equatorial pacific and seeks to answer some baic questions about the role of heterotrophic bacteria in the equatorial Pacific. Heterotrophic bacteria are believed to be an important component of the equatorial pacific system as: 1. they are one of the predominant sinks of dissolved organic nitrogen and carbon; 2. they are nitrogen rich with a carbon to nitrogen ratio of about 4.5; 3. they comprise a large portion of the biomass, and may at times be greater than the phytoplankton; and 4. they account for a large fraction of ammonium uptake in a number of marine systems. This project will examine the role of heterotrophic bacteria in nitrogen cycling in the equatorial pacific and will specifically measure bacterial production, biomass, and nitrogen uptake by bacteria.