2010 Volume 13 Issue 2 Pages 13-23
A total 110 taxa, belonging to 37 genera were found from Omusaronuma-Lake, Okoppe-chyo of Hokkaido, Japan. The dominant species and subdominant species were Melosira nummuloides C. Agardh, Petroneis marina(Ralfs)D. G. Mann, and Diploneis ovalis(Hilse)Cleve found in the sediment.