© 2005 International Council for the Exploration of the Sea
Application of a sequential regime shift detection method to the Bering Sea ecosystem
a Joint Institute for the Study of the Atmosphere and Oceans, Box 354235, University of Washington Seattle, WA 98195-4235, USA
b NOAA/Pacific Marine Environmental Laboratory 7600 Sand Point Way NE, Seattle, WA 98115-6349, USA
*Correspondence to S. Rodionov: tel: +1 206 5266211; fax: +1 206 5266485. e-mail: Sergei.Rodionov{at}noaa.gov.
A common problem of existing methods for regime shift detection is their poor performance at the ends of time-series. Consequently, shifts in environmental and biological indices are usually detected long after their actual appearance. A recently introduced method based on sequential t-test analysis of regime shifts (STARS) treats all incoming data in real time, signals the possibility of a regime shift as soon as possible, then monitors how perception of the magnitude of the shift changes over time. Results of a STARS application to the eastern Bering Sea ecosystem show how the 1989 and 1998 regime shifts manifest themselves in biotic and abiotic indices in comparison with the 1977 shift.
Keywords: Bering Sea, ecosystem, regime shift, sequential analysis, t-test
Received 1 April 2004; accepted 8 December 2004.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
C. Mollmann, B. Muller-Karulis, G. Kornilovs, and M. A. St John Effects of climate and overfishing on zooplankton dynamics and ecosystem structure: regime shifts, trophic cascade, and feedback loops in a simple ecosystem ICES J. Mar. Sci., April 1, 2008; 65(3): 302 - 310. [Abstract] [Full Text] [PDF] |
||||
