Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean

doi:10.1016/j.marenvres.2023.106074

	Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean
	Wang, Feng1,2 ; Guo, Shujin 1,3,4; Liang, Junhua 1,3,4; Sun, Xiaoxia1,2,3,4
	2023-07-01
发表期刊	MARINE ENVIRONMENTAL RESEARCH
ISSN	0141-1136
卷号	189 页码:11
通讯作者	Sun, Xiaoxia(xsun@qdio.ac.cn)
摘要	Under the background of global warming, the area extent of the oligotrophic tropical oceans has growing due to increased water-column stratification over the past decades. Picophytoplankton is usually the most dominant phytoplankton group in oligotrophic tropical oceans and substantially contribute to carbon biomass and primary production three. Understanding how vertical stratification governs the community structure of picophytoplankton communities in oligotrophic tropical oceans is important for comprehensively understanding the plankton ecology and biogeochemical cycle in these areas. In this study, the distribution of the picophytoplankton communities in the eastern Indian Ocean (EIO) was investigated during a period of thermal stratification in the spring of 2021. Prochlorococcus contributed most (54.9%) to picophytoplankton carbon biomass, followed by picoeukaryotes (38.5%) and Synechococcus (6.6%). Vertically, the three picophytoplankton groups showed quite different distribution pattern: the abundance of Synechococcus was highest in the surface layer, while Prochlorococcus and picoeukaryotes were usually located between 50 m and 100 m. The relationship between the abundance of picophytoplankton and environmental factors was analyzed, and the results revealed that picophytoplankton distribution was strongly correlated with the degree of vertical stratification of the water column. The density of Synechococcus was higher in strongly stratified waters, while Prochlorococcus was more abundant in regions of weaker stratification. This is mainly attributed to variation of physicochemical parameters such as nutrient structures and temperature resulted from water column stratification. Understanding the distribution patterns of these organisms and their relationship with stratification in the oligotrophic EIO is essential for comprehensive understanding on oligotrophic tropical ecosystem with increasing stratification in future.
关键词	Phytoplankton Biomass Community composition Stratification Environmental impact Eastern Indian ocean
DOI	10.1016/j.marenvres.2023.106074
收录类别	SCI
语种	英语
资助项目	International Science Partnership Program of the Chinese Academy of Sciences[121311KYSB20190029] ; International Science Partnership Program of the Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[133137KYSB20200002] ; NSFC Ship time Sharing Project[42049910]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology ; Toxicology
WOS记录号	WOS:001037380500001
出版者	ELSEVIER SCI LTD
WOS关键词	OPTICAL-PROPERTIES ; SYNECHOCOCCUS SP. ; PACIFIC-OCEAN ; ARABIAN SEA ; MARINE ; PHYTOPLANKTON ; TEMPERATURE ; BIOMASS ; GROWTH ; PICOPLANKTON
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182551
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.Pilot Natl Lab Marine Sci & Technol Qingdao, 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,Liang, Junhua,et al. Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean[J]. MARINE ENVIRONMENTAL RESEARCH,2023,189:11.
APA	Wang, Feng,Guo, Shujin,Liang, Junhua,&Sun, Xiaoxia.(2023).Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean.MARINE ENVIRONMENTAL RESEARCH,189,11.
MLA	Wang, Feng,et al."Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean".MARINE ENVIRONMENTAL RESEARCH 189(2023):11.