[1] Univ South Bohemia Ceske Budejovice, Res Inst Fish Culture & Hydrobiol, South Bohemian Res Ctr Aquaculture & Biodivers Hy, Fac Fisheries & Protect Waters, Vodnany, Czech Republic
[2] Ehime Univ, South Ehime Fisheries Res Ctr, Nishimura Stn, Ainan, Ehime, Japan
[3] Hokkaido Univ, Fac & Grad Sch Fisheries Sci, Hakodate, Hokkaido, Japan