DOI: 10.1111/gcb.12298
论文题名: Climate and ecosystem linkages explain widespread declines in North American Atlantic salmon populations
作者: Mills K.E. ; Pershing A.J. ; Sheehan T.F. ; Mountain D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 10 起始页码: 3046
结束页码: 3061
语种: 英语
英文关键词: Capelin
; Chronological cluster analysis
; Climate change
; Dynamic factor analysis
; Northwest Atlantic
; Phytoplankton
; Regime shift
; Sea surface temperature
; Zooplankton
Scopus关键词: abundance
; climate conditions
; cluster analysis
; environmental factor
; marine ecosystem
; phytoplankton
; population decline
; population distribution
; population size
; salmonid
; sea surface temperature
; survivorship
; trophic level
; zooplankton
; North America
; Mallotus (fish)
; Salmo salar
; animal
; article
; Atlantic Ocean
; Atlantic salmon
; Canada
; capelin
; chronological cluster analysis
; climate
; climate change
; dynamic factor analysis
; ecosystem
; Northwest Atlantic
; Osmeriformes
; phytoplankton
; population density
; regime shift
; sea surface temperature
; theoretical model
; United States
; zooplankton
; capelin
; chronological cluster analysis
; climate change
; dynamic factor analysis
; Northwest Atlantic
; phytoplankton
; regime shift
; sea surface temperature
; zooplankton
; Animals
; Atlantic Ocean
; Canada
; Climate
; Ecosystem
; Models, Theoretical
; Osmeriformes
; Phytoplankton
; Population Density
; Salmo salar
; United States
; Zooplankton
英文摘要: North American Atlantic salmon (Salmo salar) populations experienced substantial declines in the early 1990s, and many populations have persisted at low abundances in recent years. Abundance and productivity declined in a coherent manner across major regions of North America, and this coherence points toward a potential shift in marine survivorship, rather than local, river-specific factors. The major declines in Atlantic salmon populations occurred against a backdrop of physical and biological shifts in Northwest Atlantic ecosystems. Analyses of changes in climate, physical, and lower trophic level biological factors provide substantial evidence that climate conditions directly and indirectly influence the abundance and productivity of North American Atlantic salmon populations. A major decline in salmon abundance after 1990 was preceded by a series of changes across multiple levels of the ecosystem, and a subsequent population change in 1997, primarily related to salmon productivity, followed an unusually low NAO event. Pairwise correlations further demonstrate that climate and physical conditions are associated with changes in plankton communities and prey availability, which are ultimately linked to Atlantic salmon populations. Results suggest that poor trophic conditions, likely due to climate-driven environmental factors, and warmer ocean temperatures throughout their marine habitat area are constraining the productivity and recovery of North American Atlantic salmon populations. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62335
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Marine Sciences, University of Maine, Aubert Hall, Orono, ME, 04469, United States; Gulf of Maine Research Institute, 350 Commercial Street, Portland, ME, 04101, United States; Northeast Fisheries Science Center, National Marine Fisheries Service, 166 Water Street, Woods Hole, MA, 02543, United States; University of Arizona, 2707 N. Orchard Avenue, Tucson, AZ, 85712, United States
Recommended Citation:
Mills K.E.,Pershing A.J.,Sheehan T.F.,et al. Climate and ecosystem linkages explain widespread declines in North American Atlantic salmon populations[J]. Global Change Biology,2013-01-01,19(10)