气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and particulate organic particles during a semicontinuous batch culture experiment with Trichodesmium IMS101, 2007

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.716818
	Seawater carbonate chemistry and particulate organic particles during a semicontinuous batch culture experiment with Trichodesmium IMS101, 2007
	Barcelos e Ramos; Joana; Biswas; Haimanti; Schulz; Kai Georg; LaRoche; Julie; Riebesell; Ulf
发布日期	2007-04-29
数据集类型	dataset
英文关键词	Bacteria ; Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Cyanobacteria ; Laboratory experiment ; Not applicable ; Other metabolic rates ; Pelagos ; Phytoplankton ; Single species ; Trichodesmium sp.
英文简介	Diazotrophic (N2-fixing) cyanobacteria provide the biological source of new nitrogen for large parts of the ocean. However, little is known about their sensitivity to global change. Here we show that the single most important nitrogen fixer in today's ocean, Trichodesmium, is strongly affected by changes in CO2 concentrations. Cell division rate doubled with rising CO2 (glacial to projected year 2100 levels) prompting lower carbon, nitrogen and phosphorus cellular contents, and reduced cell dimensions. N2 fixation rates per unit of phosphorus utilization as well as C:P and N:P ratios more than doubled at high CO2, with no change in C:N ratios. This could enhance the productivity of N-limited oligotrophic oceans, drive some of these areas into P limitation, and increase biological carbon sequestration in the ocean. The observed CO2 sensitivity of Trichodesmium could thereby provide a strong negative feedback to atmospheric CO2 increase.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/228641
推荐引用方式 GB/T 7714	Barcelos e Ramos,Joana,Biswas,et al. Seawater carbonate chemistry and particulate organic particles during a semicontinuous batch culture experiment with Trichodesmium IMS101, 2007.2007-04-29.https://doi.org/10.1594/PANGAEA.716818.