Seasonal and Spatial Variation of Pelagic Microbial Food Web Structure in a Semi-Enclosed Temperate Bay

doi:10.3389/fmars.2020.589566

	Seasonal and Spatial Variation of Pelagic Microbial Food Web Structure in a Semi-Enclosed Temperate Bay
	Li, Haibo1,2,3 ; Chen, Xue1,2,3 ; Denis, Michel 4; Zhao, Yuan 1,2,3; Huang, Lingfeng 5,6; Jiang, Zengjie 7; Zhang, Wuchang 1,2,3; Xiao, Tian 1,2,3
	2020-11-11
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	7 页码:14
通讯作者	Zhang, Wuchang(wuchangzhang@qdio.ac.cn)
摘要	Microbial food web (MFW) in the seawater encompasses the smallest organisms: viruses, autotrophic prokaryotes and heterotrophic prokaryotes (HP), nanoflagellates, eukaryotic phytoplankton and ciliates. For many years, scientists investigated the MFW structure differences in distinct water masses. However, the MFW structure seasonal variation in coastal areas remains poorly documented. In this study, we report on the seasonal and spatial variations of the MFW structure in the temperate Sanggou Bay in four successive seasons, from spring to winter. With a temperature increase from 1.90 to 24.20 degrees C, HP biomass increased from 3.77 to 135.77 mu g C dm(-3), almost covering the whole variation range for the global ocean. The autotrophic (AUTO) components, including Synechococcus, phototrophic picoeukaryotes (PEUK) and pigmented nanoflagellates (PNF), exhibited biomass variation ranges as large as previously reported. The MFW structure seasonal variation was driven by MFW relative biomasses (biomass ratios of MFW components to HP). With the increase of HP biomass, PNF and PEUK relative biomasses increased more rapidly than those of other groups while that of ciliates slightly decreased. The HETE:AUTO (biomass ratio of heterotroph to autotroph organisms) decreased with temperature, it was 1 in other seasons. Cluster analyses distinguished Inside Bay and Outside Bay on the basis of hydrological characteristics. Consistently, the two subdivisions of Sanggou Bay exhibited different MFW structures as well as distinct tintinnid communities. The main MFW structure difference between Inside and Outside Bay was the biomass ratios of AUTO components to HP. Our results showed that the variations of autotrophic component biomass ratios relative to HP were the main factor responsible for the MFW structure seasonal variation. The spatial difference in MFW structure as well as in tintinnid taxonomic composition between Inside and Outside Bay was linked to the semienclosed nature of the Bay that does not favor efficient mixing with outside Yellow Sea waters.
关键词	microbial food web structure seasonal spatial variation Sanggou Bay
DOI	10.3389/fmars.2020.589566
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060201] ; Creative Team Project of the Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology[LMEES-CTSP-2018-1] ; CNRS-NSFC Joint Research Projects Program[41711530149] ; 2017-2019 Sino-French Cai Yuanpei Programme
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000591895500001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：5[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/337002/169163
专题	海洋生态与环境科学重点实验室
通讯作者	Zhang, Wuchang
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Toulon Univ, Aix Marseille Univ, CNRS, IRD,Mediterranean Inst Oceanog UM 110, Marseille, France 5.Xiamen Univ, Coll Environm & Ecol, Minist Educ Coastal & Wetland Ecosyst, Key Lab, Xiamen, Peoples R China 6.Xiamen Univ, Fujian Prov Key Lab Coastal Ecol & Environm Studi, Xiamen, Peoples R China 7.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Dev Marine Fisheries, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Li, Haibo,Chen, Xue,Denis, Michel,et al. Seasonal and Spatial Variation of Pelagic Microbial Food Web Structure in a Semi-Enclosed Temperate Bay[J]. FRONTIERS IN MARINE SCIENCE,2020,7:14.
APA	Li, Haibo.,Chen, Xue.,Denis, Michel.,Zhao, Yuan.,Huang, Lingfeng.,...&Xiao, Tian.(2020).Seasonal and Spatial Variation of Pelagic Microbial Food Web Structure in a Semi-Enclosed Temperate Bay.FRONTIERS IN MARINE SCIENCE,7,14.
MLA	Li, Haibo,et al."Seasonal and Spatial Variation of Pelagic Microbial Food Web Structure in a Semi-Enclosed Temperate Bay".FRONTIERS IN MARINE SCIENCE 7(2020):14.

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