NPAFC-PICES Joint Symposium”The status of Pacific salmon and their role in North Pacific marine ecosystems”

October 30 – November 1, 2005
Lotte Hotel Jeju, Jeju Island, Republic of Korea

The North Pacific Anadromous Fish Commission (NPAFC) and the North Pacific Marine Science Organization (PICES) announce a symposium on “The status of Pacific salmon and their role in North Pacific marine ecosystems” to be held on October 30 – November 1, 2005 at the Lotte Hotel Jeju, 2812-4, Saekdal-dong, Seogwipo, Jeju-do, Korea. The symposium will be organized and hosted by NPAFC and PICES.



Pacific salmon are important components of the entire complex of aquatic ecosystems, from the spawning rivers to the open North Pacific Ocean. They migrate thousands of nautical miles, and some stocks intersect and mix in different geographical zones ranging over one-sixth of the Globe. The instantaneous biomass of Pacific salmon in the ocean is several million tonnes, which is comparable to the biomass of other pelagic fishes of the Northern Pacific. At the beginning of 21st century, about eight hundred thousand tonnes of Pacific salmon are harvested each year, making a significant contribution to the fishery resources of the countries in the North Pacific. But there have also been significant variations in salmon abundances over the past decade. The time is therefore appropriate to hold a joint symposium that integrates Pacific salmon into North Pacific marine ecosystems, and examines the extent to which Pacific salmon, since they return to coastal regions, can be used as indicators of conditions in North Pacific marine ecosystems. The symposium will serve as a follow-up to the broader PICES Special Publication on Marine Ecosystems of the North Pacific.


Symposium topics

1. Status of Pacific salmon, trends in abundance and biological characteristics

    1.a  Trends in abundance and biological characteristics
      (i) Pink salmon
      (ii) Chum salmon
      (iii) Sockeye salmon
      (iv) Chinook salmon
      (v) Coho salmon
    1.b  How can ocean conditions be observed using Pacific salmon?
      (i) Ocean diets of Pacific salmon as an indicator of plankton production
      (ii) Ocean distribution (southern limit, northern limit, east-west shifts, winter distribution) as indicators of ocean conditions
      (iii) Biological characteristics of Pacific salmon (body size, growth, age, maturity, lipid content) as indicators of ocean conditions

2. Role of Pacific salmon in the function of North Pacific marine ecosystems
    2.a  Migration routes, migration timing, and resident areas for populations of Pacific salmon and what they tell us about environmental conditions on small to mid-scales
      (i) Information on open ocean stock distributions, their interannual changes, and oceanographic characterisations of these regions
      (ii) Spatio-temporal variation in vertical distributions of Pacific salmon
    2.b  Spatial scales of salmon and environmental variability (i.e. over what spatial scales and regions do salmon act as indicators of environmental variability?)
      (i) Large-scale analyses of co-variation of salmon stocks
      (ii) Migration and distribution routes, timing, and duration that salmon spend in the coastal and open ocean areas (What environmental factors are likely to influence these locations while salmon are there?)
3. Pacific salmon as indicators of climate variability in the North Pacific
    3.a  Observations: what observations of Pacific salmon populations indicate climate variability most clearly?
      (i) The impacts of global warming on abundance and distribution of Pacific salmon
      (ii) Bioenergetic responses of Pacific salmon to climate and ecosystem variation
    3.b  Mechanisms: how is climate variability transmitted to variability in Pacific salmon populations?
      (i) Growth of juvenile salmon in first marine year and overwinter survival
      (ii) Spatio-temporal interactions between salmon and predators

The language  of the symposium is English. No interpretation services will be available.
Contributed papers are requested for the above topics (except 1a)
Number of presentations
  • The two and a half day session will include up to 25 oral presentations, and posters.
  • Abstracts must be received by May 1, 2005 by the NPAFC Secretariat via e-mail (secretariat@npafc.org)

  • Abstracts must be 400 words or less in English

  • All authors will be notified of the selection results by the end of May

  • Selected presenters will receive guidelines for submission of manuscripts. The deadline for submission of manuscripts for publication is December 1, 2005
Symposium proceedings
  • The papers presented in the symposium will be peer-reviewed and published
Registration information
  • Registration and fee information will be included in the Final Announcement, scheduled for distribution at the end of July, 2005.
Hotel accommodation information
  • Hotel accommodation information will be included in the Final Announcement, scheduled for distribution at the end of July, 2005
Steering Committee
Richard Beamish (Co-Chair): Vladimir Radchenko (Co-Chair):
  Pacific Biological Station, Canada   SakhNIRO, Russia
Jack Helle: Yukimasa Ishida:
  Auke Bay Laboratory, NMFS, USA   National Research Institute of Fisheries Science,
Fisheries Research Agency, Japan
Ichiro Kanto: Suam Kim:
  Fisheries Agency, Japan   Pukyong National University, Republic of Korea
Vladimir Karpenko: Ian Perry:
  KamchatNIRO, Russia   Pacific Biological Station, Canada
Chae Sung Lee: John Stein:
  Institute, Republic of Korea
Yangyang Inland Fisheries Research
  Northwest Fisheries Science Center, NMFS, USA
Katherine Myers:    
  University of Washington, USA    
Toru Nagasawa:    
  Hokkaido National Fisheries Research Institute,
Fisheries Research Agency, Japan
Vladimir Sviridov:    
  TINRO-Centre, Russia    
For more information, please contact:
NPAFC Secretariat PICES Secretariat
Toshinori Uoya
Deputy Director Suite 502, 889 West
Pender Street, Vancouver, B.C., V6C 3B2 Canada
Tel: +1-604-775-5550
Fax: +1-604-775-5577
E-mail: uoya@npafc.org
Website: http://www.npafc.org/
Skip McKinnell
Deputy Executive
Secretary c/o Institute of Ocean Sciences
P.O. Box 6000 (mailing address)
Sidney, B.C., V8L 4B2 Canada
Tel: +1-250-363-6366
Fax: +1-250-363-6827
E-mail: mckinnell@pices.int
Website: http://www.pices.int/
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