气候变化领域集成服务门户(CCPortal): Estimating Biogenic Silica Production of Rhizaria in the Global Ocean

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DOI	10.1029/2019GB006286
	Estimating Biogenic Silica Production of Rhizaria in the Global Ocean
	Llopis Monferrer N.; Boltovskoy D.; Tréguer P.; Sandin M.M.; Not F.; Leynaert A.
发表日期	2020
ISSN	0886-6236
EISSN	1944-9224
卷号	34 期号:3
英文摘要	Siliceous polycystines and phaeodarians are open-ocean planktonic protists found throughout the water column and characterized by complex siliceous skeletons that are formed, at least partly, through the uptake of silicic acid. These protists contribute to the marine organic carbon (C) and biogenic silica (bSi) pools, but little is known about their contribution to the silica (Si) biogeochemical cycle. Here we report the first measurements of the Si uptake rate of polycystine and phaeodarian cells from samples collected in the Mediterranean Sea using the 32Si-based method. The elementary composition (bSi, particulate organic carbon and nitrogen) of these organisms was also measured. Combining our results with published data on the distribution and abundance of Polycystina and Phaeodaria in the global ocean, we conclude that these organisms could contribute from 0.2 to 2.2 mmol Si m−2 of the marine standing stock of bSi and from 2 to 58 Tmol Si yr−1 (1% to 19%) of the global oceanic biogenic silica production. The implications for the global marine Si cycle are discussed. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Phaeodaria; Polycystina; Radiolaria; Rhizaria; silica cycle; silicic acid uptake
语种	英语
scopus关键词	biogeochemical cycle; biological uptake; biomass; cell; estimation method; global ocean; particulate organic carbon; protist; silica; silicic acid; skeleton; water column; Mediterranean Sea; Phaeodarea; Polycystinea; Protista; Rhizaria
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129654
作者单位	Université de Bretagne Occidentale, CNRS, IRD, Ifremer, LEMAR, Plouzane, France; Ecology of Marine Plankton Team, Station Biologique de Roscoff, Sorbonne University, CNRS, UMR7144, Roscoff, France; Institute of Ecology, Genetics and Evolution of Buenos Aires, University of Buenos Aires-CONICET, Buenos Aires, Argentina
推荐引用方式 GB/T 7714	Llopis Monferrer N.,Boltovskoy D.,Tréguer P.,et al. Estimating Biogenic Silica Production of Rhizaria in the Global Ocean[J],2020,34(3).
APA	Llopis Monferrer N.,Boltovskoy D.,Tréguer P.,Sandin M.M.,Not F.,&Leynaert A..(2020).Estimating Biogenic Silica Production of Rhizaria in the Global Ocean.Global Biogeochemical Cycles,34(3).
MLA	Llopis Monferrer N.,et al."Estimating Biogenic Silica Production of Rhizaria in the Global Ocean".Global Biogeochemical Cycles 34.3(2020).