DOI: 10.1002/2015GL063555
论文题名: Metabolic balance in the mixed layer of the oligotrophic North Pacific Ocean from diel changes in O<inf>2</inf>/Ar saturation ratios
作者: Ferrõn S. ; Wilson S.T. ; Martínez-García S. ; Quay P.D. ; Karl D.M.
刊名: Geophysical Research Letters
ISSN: 0094-9423
EISSN: 1944-9154
出版年: 2015
卷: 42, 期: 9 起始页码: 3421
结束页码: 3430
语种: 英语
英文关键词: net community production
; North Pacific Subtropical Gyre
; O2 /Ar
; oligotrophic ocean
; respiration
; Station ALOHA
Scopus关键词: Metabolism
; Net community productions
; Oligotrophic oceans
; Respiration
; Station ALOHA
; Subtropical Gyre
; Oceanography
; diel variation
; marine ecosystem
; microbial community
; mixed layer
; net primary production
; oligotrophic environment
; oxygen
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: In situ measurements were made to determine oxygen (O2 ) metabolic balance in the upper oligotrophic ocean from diel changes in O2 to argon (Ar) ratios. The study took place during 13-24 March 2014, at the Hawaii Ocean Time-series Station ALOHA (A Long-term Oligotrophic Habitat Assessment), in the North Pacific Subtropical Gyre. Microbial community respiration and gross O2 production, estimated from in situ diel changes in O2 /Ar saturation, agreed well with those calculated using other independent methods. Net oxygen production (NOP), estimated from in situ diel changes in O2 /Ar saturation, showed large day-to-day variability. However, when averaged over the entire observational period, mean diel NOP was in relatively good agreement with the estimated mean steady state NOP (9.2±9.3mmolO2 m-2d-1 compared to 11.7±1.1mmolO2 m-2d-1, respectively). Key Points Diel changes in O2 /Ar were used to determine mixed layer ecosystem metabolism Estimated metabolic rates agreed well with other independent methods There was a net production of O2 in the mixed layer during the sampling period ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930484087&doi=10.1002%2f2015GL063555&partnerID=40&md5=ca727e7979a74feb32ebd2b96c6c4826
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9038
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Daniel K. Inouye Center for Microbial Oceanography: Research and Education, University of Hawai'i at Manoa, Honolulu, HI, United States
Recommended Citation:
Ferrõn S.,Wilson S.T.,Martínez-García S.,et al. Metabolic balance in the mixed layer of the oligotrophic North Pacific Ocean from diel changes in O<inf>2</inf>/Ar saturation ratios[J]. Geophysical Research Letters,2015-01-01,42(9).