The first scanning electron microscopy study of algal flora (Bacillariophyta) of water bodies and water courses of the Hkarasaveiyakha River basin has revealed 214 taxa of diatom algae from 50 genera including 126 taxa new for the flora of Yamal Peninsular and 19 taxa new for the flora of Russia. The highest number of species has been recorded in genera Eunotia (16), Nitzschia (17), Pinnularia (30), Navicula (35).
Keywords: Yamal Peninsular, Hkarasaveiyakha River basin, water bodies, water courses, phytoplankton, diatom algae, electron microscopy
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