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Human and Climate Forcing of Zooplankton Populations 4th International Zooplankton Production Symposium Human and Climate Forcing of Zooplankton Populations 28 May - 1 June 2007 Hiroshima, Japan 4th International Zooplankton Production Symposium Contents Page Welcome ............................................................................................................................................. iii Background ....................................................................................................................................... v The organisation and sponsors ........................................................................................................ vii Notes for guidance ............................................................................................................................. ix General programme .......................................................................................................................... xi Agenda and orders of the day by session ....................................................................................... 1 Abstracts of the papers and posters by session .............................................................................. 41 List of participants ............................................................................................................................ 241 Author index ...................................................................................................................................... 273 i 4th International Zooplankton Production Symposium Welcome On behalf of the symposium organisers, I warmly welcome fellow zooplanktologists from all over the world to Hiroshima, a peace city revived from the ruins after the atomic bomb some 60 years ago. At this symposium there will be more than 450 delegates from 54 countries, which may be the largest meeting of zooplanktologists ever. The scientific focus of this symposium “Human and climate forcing of zooplankton populations” is timely reflecting our current concerns about global warming, climate change, coastal ecosystem degradation and decreases in fisheries. It is also of great significance that this is the first such meeting to be held in Asia, where serious degradation of the marine ecosystem is occurring although holistic studies on the relationship between zooplankton and the environment are still at an early stage in many Asian countries. I hope that this symposium will provide an opportunity for all participants to present their own research findings, exchange experiences and data, obtain new ideas and techniques, and of course, make warm mutual friendships. The traditional name of this symposium, “Zooplankton Production Symposium” may not fit with today’s multidisciplinary approach to zooplankton studies. We may need a new framework for future zooplankton symposia in the same way that we need a new barrel for new sake (Japanese rice wine). I hope that this symposium may give future directions for zooplankton studies. The organisation of this symposium started after an informal request to me over the extravaganza dinner table in Gijón. I have explored the availability of conference facilities, hotels, manpower, etc., and decided to hold the symposium in Hiroshima, my hometown. I have been given enormous support from many sectors during the preparation, and the organisers are very happy to be able to open the door of the Hiroshima International Conference Center on 28 May. I wish that both this symposium and your stay in Hiroshima are memorable for all participants. Shin-ichi Uye Symposium Convenor and Chair of the local organising committee iii 4th International Zooplankton Production Symposium Background Zooplankton play a key role in the pelagic food web by controlling phytoplankton production and shaping pelagic ecosystems. In addition, because of their critical role as a food source for larval and juvenile fish, the dynamics of zooplankton populations have a critical influence on recruitment to fish stocks. It is this latter role which has made zooplankton ecology of particular interest to ICES. In 1961, ICES convened the 1st Zooplankton Production Symposium in Charlottenlund (Denmark). ICES also had a lead role in the 2nd Symposium on “Zooplankton Production: Measurement and role in global ecosystems dynamics and biogeochemical cycles”, held in Plymouth (UK), in 1994. The increasing importance of international programmes such as GLOBEC (Global Ocean Ecosystem Dynamics) and the general concerns about global change and the changing role of zooplankton in ocean ecosystems have been reflected in the development of these Symposia. This trend was further enhanced in the 3rd Zooplankton Production Symposium “The role zooplankton in global ecosystem dynamics: Comparative studies from the world oceans”, which was held in 2003, in Gijón (Spain). For the first time the Symposium was co-sponsored by ICES, PICES and GLOBEC. The Gijón Symposium attracted 333 participants from 38 countries from around the world. The 4th Zooplankton Production Symposium again co-sponsored by ICES, PICES and GLOBEC, will be held 28 May - 1 June 2007 at the International Conference Centre in Hiroshima, Japan. The Symposium is the first of the series to be held outside Europe, and will focus on “Human and climate forcing of zooplankton populations”. As such, it represents a timely topic and will provide an important opportunity to further develop the truly international nature of zooplankton research. v 4th International Zooplankton Production Symposium The organisation and sponsors Symposium Convenors Michael J. Dagg (USA/PICES) Roger P. Harris (UK/GLOBEC) Shin-ichi Uye (Japan) Luis Valdés (Spain/ICES) Scientific Steering Committee Local Organising Committee Michael J. Dagg (USA/PICES) Michio J. Kishi (Hokkaido University) Rubén V. Escribano (Chile/GLOBEC) Hideaki Nakata (Nagasaki University) Roger P. Harris (UK/GLOBEC) Shuhei Nishida (University of Tokyo) Steven Hay (UK/ICES) Shin-ichi Uye (Hiroshima University) David L. Mackas (Canada/PICES) Sun Song (China) Luis Valdés (Spain/ICES) International sponsors North Pacific Marine Science Global Ocean Ecosystem Dynamics International Council for the Organization (PICES) (GLOBEC) Exploration of the Sea (ICES) Local sponsors With additional support from Hiroshima University Hiroshima Convention and Visitors Bureau The Japanese Society of Fisheries Oceanography (JSFO) Shibuya Scholarship Foundation Commemorative Organization for the Japan World The Plankton Society of Japan (PSJ) Exposition (’70) Scientific Committee on Oceanic Research Financial support was also gratefully received from: AMCO Inc. Japan Radio Co., Ltd. Biosphere Sciences Institute Co., Ltd. Kurita Water and Environment Foundation BL-Tech Co., Ltd. Mitsui Engineering and Shipbuilding Co., Ltd. Electric Technology Research Foundation of Chugoku NGS Limited Responsibility Company EMS Co., Ltd. Nichimo Co., Ltd. Fishing Boat and System Engineering Association of Ootsuka Instrument Co., Ltd. Japan Furuno Kansai Hanbai Co., Ltd. Sogo-Koukoku Co., Ltd. Hiroshima University Supporters Association Japan NUS Co., Ltd. Toyo Corporation vii 4th International Zooplankton Production Symposium Notes for guidance Registration The registration desk will be located in the lobby of the 2nd basement floor and will be open from 09:00 to 17:30 on 28 May and from 08:00 to 17:30 on 29 May. The symposium secretariat will be based in room Ran 1. Presentations In order to allow the sessions to run smoothly and in fairness to the other speakers, please note that all presentations are expected to adhere strictly to the time allocated. The time for your presentation can be found in the agendas starting on page 1 of this abstracts book. Please give a copy of the electronic file of your presentation to the Symposium secretariat at registration or at least one day before your presentation. Operating systems available are Windows XP (Powerpoint 2003) and Mac OS10 (Powerpoint 2004). Posters Posters will be on display after the afternoon break on 29 to 31 May (noon) in the Himawari room. Posters may be put up from the afternoon of 28 May. Poster presenters are expected to be available to answer questions during the two evening poster sessions/receptions on 29 and 30 May from 18:00-20:00. Refreshments There will be morning and afternoon tea/coffee breaks (please see the agenda on pages 1-39 for times). Tea and coffee will be served in the lobby on the morning of 28 May and on 31 May - 1 June. The Himawari room will be used for tea/coffee breaks in the afternoon of 28 May and for both breaks on 29-30 May. A Japanese style lunch box including tea (price: 800 JPY) and a sandwich and juice (price: 600 JPY) will be sold at the Conference Center. It is necessary to buy the lunch ticket on the previous day. A complimentary lunch (sandwich and juice) will be provided on 31 May prior to the afternoon excursion. Internet access Free internet access via wireless LAN is available in the International Conference Center building in the poster session room (Himawari) and lobby area of the 2nd basement floor. Standard: IEEE802.11b/g base Connection: Automatic assignment of IP-address by DHCP server SSID: FREESPOT Please note that the organisers are unable to lend wireless LAN cards and that no extra security measures are implemented. Each user is responsible for adjusting their own PC settings and the organisers will not be held responsible for any mechanical failures and other damage that may arise from the use of this service. Social activities 28 May: Welcome reception
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