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Gento Shinohara
Laboratory of Marine Zoology, Faculty of Fisheries, Hokkaido University
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Mamoru Yabe
Laboratory of Marine Zoology, Faculty of Fisheries, Hokkaido University
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Kunio Amaoka
Laboratory of Marine Zoology, Faculty of Fisheries, Hokkaido University
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Toshimi Meguro
Training Ship “Hokusei Maru”, Faculty of Fisheries, Hokkaido University