Affiliation: | 1.Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan ;2.Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2192, Japan ;3.Nagano Prefectural Fisheries Experimental Station, Azumino, Nagano, 399-7102, Japan ;4.National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, Yokohama, Kanagawa, 236-8648, Japan ; |