@article{oai:niigata-u.repo.nii.ac.jp:00006865, author = {Itaki, Takuya and Matsuoka, Atsushi and Yoshida, Kazuhiro and Machidori, Satoru and Shinzawa, Midori and Todo, Takashi}, journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)}, month = {Mar}, note = {Fifteen radiolarian species were found in a plankton sample collected from surface water shallower than 10 m at the eastern margin of the Japan Sea off Tassha, Aikawa Town, Sado Island, central Japan in late May 2002. The late spring fauna was characterized by Lithomellisa setosa, Tetrapyle octacantha, Stylodictya spp., Spongodiscus spp. and Larcopyle butschlii. It is similar to that reported in late June 2001, but is different from that in early September 2000. Most individuals of warm-water species such as T. octacantha, Didymocyrtis tetrathalamus and Euchitoniafurcata were juveniles.}, pages = {41--51}, title = {Late spring radiolarian fauna in the surface water off Tassha, Aikawa Town, Sado Island, central Japan}, volume = {18}, year = {2003} }