Vertical d mesopelagic calanoid copepods(┣DBPleuromamma scatullata(/)-┫DB and. ┣DBHeterophabdus tanneri(/)-┫DB)in the Oyashio region. (共著)
Proc. Int. Mar. Sci. Symp. , Aug. 1998, Mutsu and Hakodate 1998
Life cycle of┣DBNeocalanus plumchrus(/)-┫DB (Crustaea : Copepoda)in the Oyashioregion. (共著)
Proc. Int. Mar. Sci. Symp. , Aug. 1998, Mutsu and Hakodate 1998
Biology of the mesopelagic gammarid amphipod┣DBCyphocaris challengeri(/)-┫DB off southwest Hokkaido : developmental pattern and maturity. (共著)
Proc. Int. Mar. Sci. Symp. , Aug. 1998, Mutsu and Hakodate 1998