The Study on the Flora of Bacillariophyta in the Water Systems of the Yarayakha River Basin (the Yamal Peninsula)
S. I. GENKAL1, M. I. YARUSHINA2
1I. D. Papаnin Institute for Biology of Inland Waters, RAS, 152742, Yaroslavl region, Borok
2Institute of Plant and Animal Ecology, UB RAS, 620144, Yekaterinburg, 8 Marta str., 202
Keywords: п-ов Ямал, бассейн р. Яраяха, фитопланктон, диатомовые водоросли, электронная микроскопия, the Yamal Peninsula, the Yarayakha River basin, water bodies and water courses, phytoplankton, diatom algae, electron microscopy
Abstract
The study of phytoplankton from lakes, sors, streams and rivers of the Yarayakha River basin with the help of scanning electron microscopy made it possible to extend the Bacillariophyta taxonomic spectrum: 236 specific and intraspecific taxa of diatom algae from 63 genera were detected. A total of 16 species and varieties new for the flora of Russia were recorded, and for 30 forms from 18 genera only the genus was identified. The maximum species diversity was recorded in a stream in the mouth of Yarayakha River (82 species) and in the channel of Khureikhotarka River (105 species). The following species are the most widespread in the waterbodies under study: Cyclotella meneghinianа, Fragilaria exiguiformis, Navicula hanseatica, Neidium bisulcatum, Stauroneis anceps, Thalassiosira inserta, Tabellaria flocculosa.
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