ISSN (print) 0868-8540, (online) 2413-5984
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Algologia 2008, 18(2): 183–197
Flora and Geography

Algae of Azovo-Syvashski National Nature Park (Ukraine)

Vinogradova O.N., Darienko T.M.
Abstract

Paper deals with the first results of study of algae in habitats with various levels of soil salinity and types of vegetation (true-solonchak, meadow-halophilous, saline steppes), or free of vascular plants. Totally 92 species of prokariotic and eukariotic algae were revealed: Cyanoprokatyota – 49, Chlorophyta – 28, Bacillariophyta – 12, Xanthophyta – 2, Eustigmatophyta – 1. Cyanoprokaryotes is the leading group in studied habitats in species richness, frequency and abundance. The most rich and diverse algal flora was revealed on sites of wet gleyic solonchaks with herbaceous and subshrub halophilous vegetation (70 species). It was shown that in terrestrial habitats the share of eukariotic algae and average number of species in the sample rise with the increase of herbage density. Fourteen taxa are new or noteworthy records for Ukraine. They include 7 species of cyanoprokaryotes, 5 of chlorophytes and 2 species of xanthophytes. Representatives of Xanthophyta were recorded in saline soils if Ukraine for the first time.

Keywords: algae, hypersaline ecosystems, gradient of soil salinity, ecology of algae, Azovo-Syvashski National Nature Park, Ukraine

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