BACILLARIOPHYTA IN THE PLANKTON OF LAKES AND RIVERS OF THE NORTHEASTERN YAMAL PENINSULA
The electron microscopy study of phytoplankton from lakes and rivers in the northeastern Yamal Peninsula has detected 218 taxa of diatom algae from 54 genera. A total of 15 species are new to the flora of Russia; 25 forms from 12 genera are identified only to the genus. Maximum species diversity is recorded in the rivers Sabolyakha (55), Venyakha (70), and Edyakha (79). The following species are the most widespread in the waterbodies under study: Achnanthidium helveticum, Asterionella formosa, Eunotia michaelis, Fragilaria vaucheriae, Neidium ampliatum, Tabellaria flocculosa.