♦Biological and Chemical oceanography
- Oguma, S., T. Ono, A. Kusaka, H. Kasai, Y. Kawasaki and T. Azumaya,
Isotopic tracers for water masses in the coastal region of eastern
Hokkaido, J. Oceanogr., 64, in press., 2008.
- Kasai, H., Y. Nakano, T. Ono and A. Tsuda (2010): Seasonal change of oceanographic conditions and chlorophyll a vertical distribution in the southwestern Okhotsk Sea during the non-iced season. J. Oceanogr., 66, 13-26.