Quantifying the biogenic silica production of picoplankton in the oligotrophic ocean: A case study in the South China Sea

doi:10.1016/j.marpolbul.2024.116776

	Quantifying the biogenic silica production of picoplankton in the oligotrophic ocean: A case study in the South China Sea
	Wang, Feng1,2 ; Guo, Shujin 1,3,4; Zheng, Shan 1,3,4; Sun, Xiaoxia1,2,3,4
	2024-09-01
发表期刊	MARINE POLLUTION BULLETIN
ISSN	0025-326X
卷号	206 页码:10
通讯作者	Sun, Xiaoxia(xsun@qdio.ac.cn)
摘要	Silicon (Si) utilization is not limited to eukaryotes. Recent research has suggested that the pattern of a large contribution of picocyanobacteria to biogenic silica (bSi) stocks might be widespread in the oligotrophic open ocean. We are the first to measure the size-fractionated bSi standing stocks and production rates in the oligotrophic South China Sea (SCS), which has obvious characteristics of oligotrophic waters. The 150 m integrated bSi standing stocks in the pico-sized fractions averaged 23 % of the total; the contribution of picoplankton to the total bSi production rate was 44 %. Interestingly, our estimated contributions of Synechococcus alone to the <2 mu m bSi standing stock and < 2 mu m bSi production rates averaged 14% and 66%, respectively, indicating that the significant and persistent contribution of bSi was strongly associated with marine picocyanobacteria. Furthermore, the dynamic changes in nutrient concentrations, especially in DIN and DIP, also potentially affected the variability in picoplankton bSi stocks and production rates, while the effects of temperature and salinity were not obvious. In this study, we have provided new information on measurable bSi in the picoplankton size fraction and its production rate in the SCS. We have demonstrated that picoplankton contributes a measurable, and at times significant, proportion to both the total bSi standing stock and its production rate in the SCS. A high silicon content within picocyanobacteria has important implications for understanding both their ecology and their contribution to biogeochemistry.
关键词	Biogenic silica Production rate Picoplankton Synechococcus South China Sea
DOI	10.1016/j.marpolbul.2024.116776
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42030402] ; National Natural Science Foundation of China[U2006206] ; National Natural Science Foundation of China[32371619] ; International Science Partnership Program of the Chinese Academy of Sciences[121311KYSB20190029] ; Key Collaborative Research Program of the Alliance of International Science Organizations[ANSO-CR-KP-2022 -08] ; NSFC Shiptime Sharing Project[42149906]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001283280800001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	TEMPORAL DYNAMICS ; PHYTOPLANKTON ; BIOMASS ; CYCLE ; SYNECHOCOCCUS ; ABUNDANCE ; GROWTH ; RATES
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186187
专题	胶州湾海洋生态系统国家野外研究站
通讯作者	Sun, Xiaoxia
作者单位	1.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wang, Feng,Guo, Shujin,Zheng, Shan,et al. Quantifying the biogenic silica production of picoplankton in the oligotrophic ocean: A case study in the South China Sea[J]. MARINE POLLUTION BULLETIN,2024,206:10.
APA	Wang, Feng,Guo, Shujin,Zheng, Shan,&Sun, Xiaoxia.(2024).Quantifying the biogenic silica production of picoplankton in the oligotrophic ocean: A case study in the South China Sea.MARINE POLLUTION BULLETIN,206,10.
MLA	Wang, Feng,et al."Quantifying the biogenic silica production of picoplankton in the oligotrophic ocean: A case study in the South China Sea".MARINE POLLUTION BULLETIN 206(2024):10.