globalchange  > 气候减缓与适应
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
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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)
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