摘要：Lake Mokeuninuma (45°14′N, 142°16′) is 5 meters above sea level, with a maximum depth of 4.0 meters and mean depth of 3.0 meters. We collected diatom assemblages from plankton and the sediment of Lake Mokeuninuma in August 2017. It contained a total of 54 taxa from 25 genera. The dominant taxa and subdominant taxa were Neidium ampliatum and Pinnularia microstauron .
