In anticipation of the first boat outing on Lake Baikal, we collected some benthic diatoms from the shore near the ISU station in Bolshie Koty. It is striking that even the low hanging fruits are interesting diatoms. The rocky substrate at the shore harbors two-three species of Didymosphenia, two members of the Cymbella stuxbergii group and one Hannaea species (possibly the endemic H. baicalensis).
The small stream flowing into Lake Baikal, near the ISU and LIN stations, has healthy populations of Meridion circulare forming nice circular/spiral colonies and Diatoma mesodon in band-like colonies. Some images follow (all at 640x magnification).