DOI: 10.1111/gcb.12074
论文题名: Sea ice phenology and timing of primary production pulses in the Arctic Ocean
作者: Ji R. ; Jin M. ; Varpe O.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 3 起始页码: 734
结束页码: 741
语种: 英语
英文关键词: Arctic
; Bloom
; Ecosystem model
; Ice algae
; Phenology
; Phytoplankton
Scopus关键词: ice
; sea water
; algal bloom
; climate variation
; food web
; pelagic environment
; phenology
; phytoplankton
; primary production
; sea ice
; seasonality
; trophic level
; zooplankton
; Arctic
; article
; ecosystem
; phytoplankton
; sea
; theoretical model
; Arctic Regions
; Ecosystem
; Ice
; Models, Theoretical
; Oceans and Seas
; Phytoplankton
; Seawater
; Arctic Ocean
; algae
英文摘要: Arctic organisms are adapted to the strong seasonality of environmental forcing. A small timing mismatch between biological processes and the environment could potentially have significant consequences for the entire food web. Climate warming causes shrinking ice coverage and earlier ice retreat in the Arctic, which is likely to change the timing of primary production. In this study, we test predictions on the interactions among sea ice phenology and production timing of ice algae and pelagic phytoplankton. We do so using the following (1) a synthesis of available satellite observation data; and (2) the application of a coupled ice-ocean ecosystem model. The data and model results suggest that, over a large portion of the Arctic marginal seas, the timing variability in ice retreat at a specific location has a strong impact on the timing variability in pelagic phytoplankton peaks, but weak or no impact on the timing of ice-algae peaks in those regions. The model predicts latitudinal and regional differences in the timing of ice algae biomass peak (varying from April to May) and the time lags between ice algae and pelagic phytoplankton peaks (varying from 45 to 90 days). The correlation between the time lag and ice retreat is significant in areas where ice retreat has no significant impact on ice-algae peak timing, suggesting that changes in pelagic phytoplankton peak timing control the variability in time lags. Phenological variability in primary production is likely to have consequences for higher trophic levels, particularly for the zooplankton grazers, whose main food source is composed of the dually pulsed algae production of the Arctic. © 2012 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62507
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biology, Woods Hole Oceanographic Institution, MS# 33 Redfield 2-14, Woods Hole, MA 02543, United States; International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775, United States; Norwegian Polar Institute, Fram Centre, Tromsø, N-9296, Norway; Akvaplan-niva, Fram Centre, Tromsø, N-9296, Norway
Recommended Citation:
Ji R.,Jin M.,Varpe O.. Sea ice phenology and timing of primary production pulses in the Arctic Ocean[J]. Global Change Biology,2013-01-01,19(3)