气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and elemental composition of a southern hemisphere strain of coccolithophore Emiliania huxleyi

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.885410
	Seawater carbonate chemistry and elemental composition of a southern hemisphere strain of coccolithophore Emiliania huxleyi
	Feng; Yuanyuan; Roleda; Michael Y; Armstrong; Evelyn; Law; Cliff S; Boyd; Philip W; Hurd; Catriona L
发布日期	2018-01-23
数据集类型	dataset
英文关键词	Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Chromista ; Emiliania huxleyi ; Growth/Morphology ; Haptophyta ; Laboratory experiment ; Laboratory strains ; Not applicable ; Pelagos ; Phytoplankton ; Single species
英文简介	A series of semi-continuous incubation experiments were conducted with the coccolithophore Emiliania huxleyi strain NIWA1108 (Southern Ocean isolate) to examine the effects of five environmental drivers (nitrate concentration, phosphate concentration, irradiance, temperature and pCO2) on both the physiological rates and elemental composition. Here, we report the alteration of the elemental composition of E. huxleyi in response to the changes in these environmental drivers. A series of dose response curves for the cellular elemental composition of E. huxleyi were fitted for each of the five drivers across an environmentally-representative gradient. The importance of each driver in regulating the elemental composition of E. huxleyi was ranked using a semi-quantitative approach. The percentage variation in elemental composition arising from the change in each driver between present day and model-projected conditions for the year 2100 were calculated. Temperature was the most important driver controlling both cellular particulate organic and inorganic carbon content, whereas nutrient concentrations were the most important regulator of cellular particulate nitrogen and phosphorus of E. huxleyi. In contrast, elevated pCO2 had the greatest influence on cellular particulate inorganic carbon to organic carbon ratio, resulting in a decrease in the ratio. Our results indicate that the different environmental drivers each play specific roles in regulating the cellular elemental composition of E. huxleyi with wide-reaching implications for coccolithophore biogeochemistry, as a consequence of the regulation of E. huxleyi physiological processes.
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/216317
推荐引用方式 GB/T 7714	Feng,Yuanyuan,Roleda,et al. Seawater carbonate chemistry and elemental composition of a southern hemisphere strain of coccolithophore Emiliania huxleyi.2018-01-23.https://doi.org/10.1594/PANGAEA.885410.