Абстрактный

Diversity and Ecology of Algal Communities from the Regional Landscape Park "Slavyansky Resort", Ukraine

Valentina Klymiuk1, Sophia Barinova and Natalya Lyalyuk

We revealed 238 species and infraspecific taxa of algae and cyanobacteria in phytoplankton communities in lakes of the Regional Landscape Park “Slavyansky Resort”, Ukraine during 2007-2013 of the total 352 known in the region assigned to nine taxonomic Divisions with Bacillariophyta, Cyanoprocaryota, and Chlorophyta prevailing. The bio-indication methods applied for the first time characterizes the aquatic environments as slightly alkaline, medium-enriched with oxygen, temperate, clear to moderately polluted, of Water Quality Classes II-III, eutrophic, but with photosynthetic algal nutrition attesting to insignificant concentration of toxic substances despite a considerable anthropogenic impact. The algal diversity is depressed with salinity of the lakes. The statistical analysis defines two clusters, the northern with perennial lakes Ripne, Veysove, Garache, and Slipne, and southern of partially drained lakes Levadne, Chervone, and Lake. Aridity is a major factor of water chemistry inflicting high salinity and depletion of species diversity. Historically salinity might have played a leading role in shaping the algal communities of the region.