DOI: 10.3354/cr01425
Scopus记录号: 2-s2.0-85018621767
论文题名: Long-term Bering Sea environmental variability revealed by a centennial-length biochronology of Pacific ocean perch Sebastes alutus
作者: Van Der Sleen P. ; Dzaugis M.P. ; Gentry C. ; Hall W.P. ; Hamilton V. ; Helser T.E. ; Matta M.E. ; Underwood C.A. ; Zuercher R. ; Black B.A.
刊名: Climate Research
ISSN: 0936577X
出版年: 2016
卷: 71, 期: 1 起始页码: 33
结束页码: 45
语种: 英语
英文关键词: Bering Sea
; Chronology
; Climate
; Growth increment
; Otolith
; Pacific ocean perch
; Sebastes alutus
Scopus关键词: biochronology
; climate change
; decadal variation
; ecosystem function
; growth rate
; long-term change
; otolith
; teleost
; time series
; trophic level
; Bering Sea
; Pacific Ocean
; Limanda aspera
; Sebastes alutus
英文摘要: The productivity and functioning of Bering Sea marine ecosystems are tightly coupled to decadal-scale environmental variability, as exemplified by the profound changes in community composition that followed the 1976-1977 shift from a cool to a warm climate regime. Longer-term ecosystem dynamics, including the extent to which this regime shift was exceptional in the context of the past century, remain poorly described due to a lack of multi-decadal biological time series. To explore the impact of decadal regime shifts on higher trophic levels, we applied dendrochronology (tree-ring science) techniques to the otolith growth-increment widths of Pacific ocean perch Sebastes alutus (POP) collected from the continental slope of the eastern Bering Sea. After crossdating, 2 chronology development techniques were applied: (1) a regional curve standardization (RCS) approach designed to retain as much low-frequency variability as possible, and (2) an individual-detrending approach that maximized interannual synchrony among samples. Both chronologies spanned the years 1919-2006 and were significantly (p < 0.001) and positively correlated with sea surface temperature (March-December). The RCS chronology showed a transition from relatively slow to fast growth after 1976-1977. In both chronologies, the highest observed growth values immediately followed the regime shift, suggesting that this event had a critical and lasting impact on growth of POP. This growth pulse was, however, not shared by a previously published yellowfin sole Limanda aspera chronology (1969-2006) from the eastern Bering Sea shelf, indicating species- or site-specific responses. Ultimately, these chronologies provide a long-term perspective and underscore the susceptibility of fish growth to extreme low-frequency events. © Inter-Research 2016.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116366
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Van Der Sleen P.,Dzaugis M.P.,Gentry C.,et al. Long-term Bering Sea environmental variability revealed by a centennial-length biochronology of Pacific ocean perch Sebastes alutus[J]. Climate Research,2016-01-01,71(1)