Massive circumpolar biomass of Southern Ocean zooplankton: Implications for food web structure, carbon export, and marine spatial planning

doi:10.1002/lno.12219

	Massive circumpolar biomass of Southern Ocean zooplankton: Implications for food web structure, carbon export, and marine spatial planning
	Yang, Guang 1,2,3; Atkinson, Angus 4; Pakhomov, Evgeny A.5,6,7; Hill, Simeon L.8; Racault, Marie-Fanny 9
	2022-09-09
发表期刊	LIMNOLOGY AND OCEANOGRAPHY
ISSN	0024-3590
页码	15
通讯作者	Yang, Guang([email protected])
摘要	With rapid, sector-specific climatic changes impacting the Southern Ocean, we need circumpolar-scale biomass data of its plankton taxa to improve food web models, blue carbon budgets and resource management. Here, we provide a new dataset on mesozooplankton biomass with 2909 records spanning the last 90 yr, and describe, in comparable carbon units, their circumpolar distribution alongside those of phytoplankton, Antarctic krill, and salps. With our datasets, we estimate total summer carbon biomasses for phytoplankton (36 MT), mesozooplankton (67 MT), krill (30 MT), and salps (1.7 MT). The mesozooplankton value is much higher than previously reported and, added to that of krill and salps, points to an enormous overall biomass of zooplankton in the Southern Ocean. This means that the pyramids of biomass are often inverted, with higher biomass of zooplankton than of phytoplankton. Such high biomasses suggest key roles of grazers in nutrient cycling and we estimate an export of -similar to 50 Mt C yr(-1), solely from mortality of overwintering zooplankton that typically reside at depth. Deep lipid respiration (the lipid pump), for example, would increase this export even further. While inverted biomass pyramids prevailed at mid latitudes (50 degrees-70 degrees S), the balance of taxa differed regionally: for example, with biomass dominance by phytoplankton (highest latitudes and Pacific sector), mesozooplankton (Kerguelen Plateau), krill (north and east Scotia Sea), and salps (Crozet area). In light of contrasting climate change impacts between these sectors, we provide data that will underpin biogeochemical and food web models, blue carbon budgets, and the planning of marine protected areas.
DOI	10.1002/lno.12219
收录类别	SCI
语种	英语
资助项目	National Science Foundation of China[41876217]; Impact and Response of Antarctic Seas to Climate Change[IRASCC 01-02-01D]; World Wide Fund for Nature (WWF); University of British Columbia; NSERC[RGPIN-2014-05107]; NERC; Frontiers of instability in marine ecosystems and carbon export (Marine Frontiers)[NE/V011103/1]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000851616900001
出版者	WILEY
引用统计	被引频次：15[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/337002/180838
专题	海洋生态与环境科学重点实验室
通讯作者	Yang, Guang
作者单位	1.Chinese Acad Sci, Inst Oceanol, 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.Plymouth Marine Lab, Plymouth, Devon, England 5.Univ British Columbia, Dept Earth Ocean & Atmospher Sci, Vancouver, BC, Canada 6.Univ British Columbia, Inst Oceans & Fisheries, Vancouver, BC, Canada 7.Hakai Inst, Campbell River, BC, Canada 8.British Antarctic Survey, Cambridge, England 9.Univ East Anglia, Sch Environm Sci, Norwich, Norfolk, England
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	Yang, Guang,Atkinson, Angus,Pakhomov, Evgeny A.,et al. Massive circumpolar biomass of Southern Ocean zooplankton: Implications for food web structure, carbon export, and marine spatial planning[J]. LIMNOLOGY AND OCEANOGRAPHY,2022:15.
APA	Yang, Guang,Atkinson, Angus,Pakhomov, Evgeny A.,Hill, Simeon L.,&Racault, Marie-Fanny.(2022).Massive circumpolar biomass of Southern Ocean zooplankton: Implications for food web structure, carbon export, and marine spatial planning.LIMNOLOGY AND OCEANOGRAPHY,15.
MLA	Yang, Guang,et al."Massive circumpolar biomass of Southern Ocean zooplankton: Implications for food web structure, carbon export, and marine spatial planning".LIMNOLOGY AND OCEANOGRAPHY (2022):15.