1. Okinawa Prefectural Fisheries Research and Extension Center Okinawa Japan
2. Fishing Port and Grounds Division Okinawa Prefectural Government Okinawa Japan
3. Onna Village Fisheries Cooperative Okinawa Japan
4. Laboratory of Applied Phycology Tokyo University of Marine Science and Technology Tokyo Japan
5. Field Science Center for Northern Biosphere Hokkaido University Sapporo Japan