气候变化领域集成服务门户(CCPortal): Krill and salp faecal pellets contribute equally to the carbon flux at the Antarctic Peninsula

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DOI	10.1038/s41467-021-27436-9
	Krill and salp faecal pellets contribute equally to the carbon flux at the Antarctic Peninsula
	Pauli N.-C.; Flintrop C.M.; Konrad C.; Pakhomov E.A.; Swoboda S.; Koch F.; Wang X.-L.; Zhang J.-C.; Brierley A.S.; Bernasconi M.; Meyer B.; Iversen M.H.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Krill and salps are important for carbon flux in the Southern Ocean, but the extent of their contribution and the consequences of shifts in dominance from krill to salps remain unclear. We present a direct comparison of the contribution of krill and salp faecal pellets (FP) to vertical carbon flux at the Antarctic Peninsula using a combination of sediment traps, FP production, carbon content, microbial degradation, and krill and salp abundances. Salps produce 4-fold more FP carbon than krill, but the FP from both species contribute equally to the carbon flux at 300 m, accounting for 75% of total carbon. Krill FP are exported to 72% to 300 m, while 80% of salp FP are retained in the mixed layer due to fragmentation. Thus, declining krill abundances could lead to decreased carbon flux, indicating that the Antarctic Peninsula could become a less efficient carbon sink for anthropogenic CO2 in future. © 2021, The Author(s).
语种	英语
scopus关键词	carbon flux; carbon sink; mixed layer; sediment trap; Antarctic Peninsula; Antarctica; Southern Ocean; West Antarctica; carbon; sea water; animal; Antarctica; carbon cycle; chemistry; feces; krill; metabolism; Animals; Antarctic Regions; Carbon; Carbon Cycle; Euphausiacea; Feces; Seawater
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250556
作者单位	Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University of Oldenburg, Carl-von-Ossietzky-Str. 9-11, Oldenburg, 26111, Germany; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, 27570, Germany; MARUM and University of Bremen, Leobener Str. 8, Bremen, 28359, Germany; Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall, Vancouver, BC V6T 1Z4, Canada; Institute for the Oceans and Fisheries, University of British Columbia, 2202 Main Mall, Vancouver, BC V6T 1Z4, Canada; Hakai Institute, PO Box 25039, Campbell River, BC V9W 0B7, Canada; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao, 266071, China; Pelagic Ecology Research Group, Gatty Marine Laboratory, Scottish Oceans Institute, School of Biology, University of St Andrews, St Andrews, Fife KY16 8LB, United Kingdom; Helmholtz Institute for Functional Mar...
推荐引用方式 GB/T 7714	Pauli N.-C.,Flintrop C.M.,Konrad C.,et al. Krill and salp faecal pellets contribute equally to the carbon flux at the Antarctic Peninsula[J],2021,12(1).
APA	Pauli N.-C..,Flintrop C.M..,Konrad C..,Pakhomov E.A..,Swoboda S..,...&Iversen M.H..(2021).Krill and salp faecal pellets contribute equally to the carbon flux at the Antarctic Peninsula.Nature Communications,12(1).
MLA	Pauli N.-C.,et al."Krill and salp faecal pellets contribute equally to the carbon flux at the Antarctic Peninsula".Nature Communications 12.1(2021).