Institution: | Ocean Research Institute, University of Tokyo, Nakano, Tokyo 164-8639;, Faculty of Bioresources, Mie University, Tsu, Mie 514-8507;, Department of Fisheries, Kyushu University, Higashi, Fukuoka 812;, Department of Aquatic Bioscience, Graduate School of Agricultural and Life Science, University of Tokyo, Bunkyo, Tokyo 133-0011;, Faculty of Fisheries, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan; Department of Oceanography, Chungnam National University, Yusong, Taejon 305-764, Korea, and; Max-Plank-Institute of Animal Behavioral Physiology, 82319 Seewiesen, Germany |