Working Group 26: Jellyfish Blooms around the North Pacific Rim: Causes and Consequences
  • Acronym: WG 26
  • Parent Committee: BIO
  • Term: Oct. 2010 - 2013
  • Co-Chairs:
    Shin-ichi Uye (Japan)
    Richard Brodeur (USA)
  • Past Co-Chairs:
    Won-Duk Yoon (Oct. 2011- Dec. 2012, Korea)
    Young-Shil Kang (Oct. 2010- Oct. 2011, Korea)
Terms of Reference
  1. Review past and ongoing studies on the reproductive biology of jellyfish species that cause problematic blooms.
  2. Compile existing data on temporal variations in jellyfish abundance in the North Pacific and its marginal seas, and analyze them in relation to regional environmental and climate changes in order to identify causes of increasingly recurrent jellyfish blooms.
  3. Elucidate the role of jellyfish in coastal and oceanic marine food webs and assess the impacts of jellyfish blooms on marine ecosystems and socio-economies such as fisheries and aquaculture.
  4. Evaluate methodologies for predicting blooms and for diminishing their impact on marine and human systems, including bloom forecast modeling and the modification of fishing gears.
  5. Promote international collaboration among PICES member countries for exchanging available information on jellyfish, and encourage joint research surveys on jellyfish among PICES member countries.
  6. Provide jellyfish metrics as indicator of ecosystem change and resiliency in cooperation with FUTURE AICE-AP and SOFE-AP and FUTURE related expert groups.
  7. Publish a final report summarizing the results, including recommendations to policy makers for reducing impacts of jellyfish blooms in the North Pacific.
Annual Meetings


2013, 2012, 2011


Summer 2013, Vol. 21, No. 2
The fourth International Jellyfish Bloom Symposium

Winter 2012, Vol. 20, No. 1
New PICES jellyfish working group formed

PICES Scientific Reports
PICES Sci. Rep. No. 51, 2017
Report of Working Group 26 on Jellyfish Blooms around the North Pacific Rim: Causes and Consequences
Other Publications
2014 ICES ASC,  ICES/PICES Theme Session A:  Best Oral Presentations
Members as of October 2013
Mary Needler Arai
Fisheries and Oceans Canada
Pacific Biological Station
3190 Hammond Bay Rd.
Nanaimo, BC
Canada V9T 6N7
Lucas Brotz
Fisheries Centre, Sea Around Us Project
University of British Columbia
AERL Bldg., 2202 Main Mall
Vancouver, BC
Canada V6T 1Z4
Moira Donald Galbraith
Fisheries and Oceans Canada
Institute of Ocean Sciences
P.O. Box 6000 9860 West Saanich Road
Sidney, BC
Canada V8L 4B2
Siqing Chen
Yellow Sea Fisheries Research Institute, CAFS
106 Nanjing Rd.
Qingdao, Shandong
China, 266071
Xinming Pu
Marine Ecology Research Center
First Institute of Oceanography, SOA
6 Xianxialing Rd., Hi-Tech Park, LaoShan District
Qingdao, Shandong
China, 266061
Song Sun
Key Laboratory of Marine Ecology and Environmental Science
Institute of Oceanology, CAS
7 Nanhai Rd.
Qingdao, Shandong
China, 266071
Zijun Xu
North China Sea Environmental Monitoring Center
North China Sea Branch of SOA
22 Fushun Rd.
Qingdao, Shandong
China, 266000
Haruto Ishii
Tokyo University of Marine Science and Technology
4-5-7 Konan
Minato, Tokyo
Japan 108-8477
Masaya Toyokawa
Research Center for Fisheries and Environment in the Ariake and Yatsushiro Bay
Seikai National Fisheries Research Institute, FRA
1551-8 Taira-machi
Nagasaki, Nagasaki
Japan 851-2213
Shin-ichi Uye
WG-26 Co-Chair
Graduate School of Biosphere Science
Hiroshima University
4-4 Kagamiyama 1 Chome
Higashi-Hiroshima, Hiroshima
Japan 739-8528
Changhoon Han
National Fisheries Research and Development Institute (NFRDI), MOF
152-1 Haean-ro, Gijang-eup, Gijang-gun
Korea, 619-705
Kyoungsoon Shin
Ballast Water Center
Korea Institute of Ocean Science and Technology (KIOST)
41 Jangmok1-gil Jangmok-Myon
Seungshic Yum
South Sea Environment Research
Korea Institute of Ocean Science & Technology (KIOST)
391 Jangmok
Geoje, Gyeongnam
Korea, 656-830
Elena P. Dulepova
Laboratory of Hydrobiology
Pacific Scientific Research Fisheries Center (TINRO-Center)
4 Shevchenko Alley
Vladivostok, Primorsky Kray
Russia 690950
Alexander V. Zavolokin
Pacific Scientific Research Fisheries Center (TINRO-Center)
4 Shevchenko Alley
Vladivostok, Primorsky Kray
Russia 690091
Richard D. Brodeur
WG-26 Co-Chair
Fish Ecology, HMSC
National Marine Fisheries Service, NOAA
2030 SE Marine Science
Newport, OR
U.S.A. 97365
Kristin Cieciel
Auke Bay Laboratories
Alaska Fisheries Science Center, NMFS, NOAA
17109 Pt. Lena Loop Rd.
Juneau, AK
U.S.A. 99801
John C. Field
Fisheries Ecology
Southwest Fisheries Science Center (SWFSC), NMFS, NOAA
110 Shaffer Rd.
Santa Cruz, CA
U.S.A. 95060
Jennifer E. Purcell
Shannon Point Marine Center
Western Washington University
1900 Shannon Point Rd.
Anacortes, WA
U.S.A. 98221