Abstract
Floras of cyanobacteria, chlorophytes and euglenozoa of 14 glacial lakes and a pond in the Kaçkar Mountains National Park collected on 19 July, 28 August and 10 September 2020 comprised 66 species. Cyanobacteria were predominant (46.96%), Nostoc (Cyanobacteria) and Trachelomonas (Euglenozoa) were the most abundant. Physicochemical analysis and bioindicator species indicate that the studied waters are fresh, with low salinity and near-neutral or low-alkaline pH and are not polluted with organic matter. Statistical analysis of the data showed that algal and cyanobacterial floras are individual in geographically defined habitats.