Algoflora of the rivers of Permskiy krai under anthropogenic salinization of potassium production wastes

We studied the species composition of algoflora of Yaiva, Volim, Chernaya and Lеnva rivers of Perm krai in this article. A check-list of algae and cyanoprokaryota presented, it includes 300 taxa below the genus from 106 genera, 59 families, 33 orders and 7 divisions. The diatoms have composed most of the species diversity; the leading families: Fragilariaceae, Bacillariaceae and Cymbellaceae. Most of identified taxa are benthic forms with a world-wide area. Most of them is indifferent and halophilic in relation to salinity, alkaliphilic and indifferent with respect to pH and в-meso and oligosaprobic towards saprobity. Dendrograms of studied rivers, based on Sorensen-Czekanowski's index of similarity of biocenosis, presented in this paper.