DOI: 10.1111/gcb.13864
Scopus记录号: 2-s2.0-85030166521
论文题名: Warming of Subarctic waters accelerates development of a key marine zooplankton Calanus finmarchicus
作者: Weydmann A. ; Walczowski W. ; Carstensen J. ; Kwaśniewski S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 1 起始页码: 172
结束页码: 183
语种: 英语
英文关键词: Arctic
; atlantification
; Calanus
; climate change
; fish migrations
; plankton
; seabirds
; West Spitsbergen Current
Scopus关键词: abundance
; climate change
; global warming
; migratory behavior
; population structure
; seabird
; summer
; zooplankton
; Arctic Ocean
; Atlantic Ocean
; West Spitsbergen Current
; Calanus
; Calanus finmarchicus
; Clupeidae
; Copepoda
; Pinguinus
英文摘要: Recent observations confirm the rising temperatures of Atlantic waters transported into the Arctic Ocean via the West Spitsbergen Current (WSC). We studied the overall abundance and population structure of the North Atlantic keystone zooplankton copepod Calanus finmarchicus, which is the main prey for pelagic fish and some seabirds, in relation to selected environmental variables in this area between 2001 and 2011, when warming in the Arctic and Subarctic was particularly pronounced. Sampling within a 3-week time window each summer demonstrated that trends in the overall abundance of C. finmarchicus varied between years, with the highest values in “extreme” years, due to high numbers of nauplii and early copepodite stages in colder years (2001, 2004, 2010), and contrary to that, the fifth copepodite stage (C5) peaking in warm years (2006, 2007, 2009). The most influential environmental variable driving C. finmarchicus life cycle was temperature, which promoted an increased C5 abundance when the temperature was above 6°C, indicating earlier spawning and/or accelerated development, and possibly leading to their development to adults later in the summer and spawning for the second time, given adequate food supply. Based on the presented high interannual and spatial variability, we hypothesize that under a warmer climate, C. finmarchicus may annually produce two generations in the southern part of the WSC, what in turn could lead to food web reorganization of important top predators, such as little auks, and induce northward migrations of fish, especially the Norwegian herring. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110599
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Marine Plankton Research, Institute of Oceanography, University of Gdansk, Gdynia, Poland; Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland; Department of Bioscience, Aarhus University, Roskilde, Denmark
Recommended Citation:
Weydmann A.,Walczowski W.,Carstensen J.,et al. Warming of Subarctic waters accelerates development of a key marine zooplankton Calanus finmarchicus[J]. Global Change Biology,2018-01-01,24(1)