1. 1) H. Sugita, C. Miyajima, and Y. Deguchi: Aquaculture, 92, 267-276 (1991).
2. 2) H. Sugita, T. Nakajima, and Y. Deguchi: Nippon Suisan Gakkaishi, 51, 295-299 (1985).
3. 3) H. Sugita and Y. Deguchi: Nippon Suisan Gakkaishi, 49, 197-201 (1983).
4. 4) H. Sugita, C. Miyajima, J. Iwata, S. Arai, T. Kubo, S. Igarashi, and Y. Deguchi: Nippon Suisan Gakkaishi, 54, 875-882 (1988).
5. 5) H. Sugita, C. Miyajima, C. Sugiura, M. Iwata, S. Kato, and Y. Deguchi: J. Fish Biol., 35, 161-163 (1989).