气候变化领域集成服务门户(CCPortal): Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally

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DOI	10.1029/2019GB006265
	Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally
	Lebrato M.; Pahlow M.; Frost J.R.; Küter M.; de Jesus Mendes P.; Molinero J.-C.; Oschlies A.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1764
结束页码	1783
卷号	33 期号:12
英文摘要	Gelatinous zooplankton (Cnidaria, Ctenophora, and Urochordata, namely, Thaliacea) are ubiquitous members of plankton communities linking primary production to higher trophic levels and the deep ocean by serving as food and transferring “jelly-carbon” (jelly-C) upon bloom collapse. Global biomass within the upper 200 m reaches 0.038 Pg C, which, with a 2–12 months life span, serves as the lower limit for annual jelly-C production. Using over 90,000 data points from 1934 to 2011 from the Jellyfish Database Initiative as an indication of global biomass (JeDI: http://jedi.nceas.ucsb.edu, http://www.bco-dmo.org/dataset/526852), upper ocean jelly-C biomass and production estimates, organism vertical migration, jelly-C sinking rates, and water column temperature profiles from GLODAPv2, we quantitatively estimate jelly-C transfer efficiency based on Longhurst Provinces. From the upper 200 m production estimate of 0.038 Pg C year−1, 59–72% reaches 500 m, 46–54% reaches 1,000 m, 43–48% reaches 2,000 m, 32–40% reaches 3,000 m, and 25–33% reaches 4,500 m. This translates into ~0.03, 0.02, 0.01, and 0.01 Pg C year−1, transferred down to 500, 1,000, 2,000, and 4,500 m, respectively. Jelly-C fluxes and transfer efficiencies can occasionally exceed phytodetrital-based sediment trap estimates in localized open ocean and continental shelves areas under large gelatinous blooms or jelly-C mass deposition events, but this remains ephemeral and transient in nature. This transfer of fast and permanently exported carbon reaching the ocean interior via jelly-C constitutes an important component of the global biological soft-tissue pump, and should be addressed in ocean biogeochemical models, in particular, at the local and regional scale. ©2019. The Authors.
英文关键词	carbon; gelatinous; Jelly-C; modeling; transfer efficiency; zooplankton
语种	英语
scopus关键词	algal bloom; biological pump; biomass; carbon flux; phytodetritus; primary production; temperature profile; trophic level; zooplankton; Cnidaria; Scyphozoa; Thaliacea; Urochordata
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129678
作者单位	Geosciences Department, Christian-Albrechts-University Kiel (CAU), Kiel, Germany; Bazaruto Center for Scientific Studies (BCSS), Benguerra Island, Inhambane Province, Mozambique; GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; South Florida Water Management District, West Palm Beach, FL, United States; Marine and Environmental Scientific and Technological Solutions (MAESTS), Bremen, Germany
推荐引用方式 GB/T 7714	Lebrato M.,Pahlow M.,Frost J.R.,et al. Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally[J],2019,33(12).
APA	Lebrato M..,Pahlow M..,Frost J.R..,Küter M..,de Jesus Mendes P..,...&Oschlies A..(2019).Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally.Global Biogeochemical Cycles,33(12).
MLA	Lebrato M.,et al."Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally".Global Biogeochemical Cycles 33.12(2019).