Phosphorus at the Bermuda Atlantic Time-Series Station (BATS): Microbial Cycling of a Potentially Limiting Nutrient

百慕大大西洋时间序列站 (BATS) 的磷：潜在限制性营养素的微生物循环

• 批准号: 9416614
• 负责人: James Ammerman
• 金额: $ 33.49万
• 依托单位: Texas A&M Research Foundation
• 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: 1995-04-15 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9416614&HistoricalAwards=false
• 关键词: Phosphorus; Bermuda; Atlantic; Time; Series

9416614 Ammerman The principal objective of this study is to determine if planktonic microbial growth in the Sargasso Sea is phosphorus limited. This objective will be addressed by a combination of chemical, metabolic and biomass measurements coupled with a series of nutrient-enrichment experiments. The measurements will made over the course of three cruises aimed at capturing contrasting spring bloom and summer periods. More frequent time series cruises will supplement the results fro these three proposed study will measure the cycling of phosphorus in the Sargasso Sea, which is a major but rarely studied nutrient which may be limiting autotrophic and heterotrophic planktonic growth. Phosphorus limitation in such environments could have significant impact on the global phosphorus cycle and the oceanic component of the global carbon cycle. The research will also serve to improve analytical methods for measuring inorganic phosphorus in seawater.

9416614这项研究的主要目的是确定萨尔加索海中的浮游微生物生长是否受到磷的限制。 该目标将通过化学，代谢和生物量测量以及一系列营养含量实验的结合来解决。 这些测量将在三个巡游过程中进行，旨在捕捉春季盛开和夏季。 更频繁的时间序列巡航将补充这三项提出的研究的结果，将测量萨尔加索海中磷的循环，这是一种主要但很少研究的营养素，这可能限制了自养和异养的浮游生活性生长。 在这种环境中的磷限制可能会对全球碳循环的全球磷周期和海洋成分产生重大影响。 该研究还将有助于改善测量海水中无机磷的分析方法。