This paper describes a new species from the class Chlorophyceae, Heterochlamydomonas uralensis sp. nov., isolated soil of carex-moss-lichen tundra in Subpolar Urals Mountains, Russia. The taxon is studied using morphological methods and DNA identification. differs other spp. by cellular morphology, detected on light ultrastructural levels, 18S ITS2 rDNA sequences. These results support separati...

The phytoplankton composition of Sawa Lake was studied monthly for 18 months, from October 1999 to March 2001. A net (20 $) used collect samples. total 51 algal taxa identified belong diatoms (Bacillariophyceae), blue greens (Cyanophyceae), green algae (Chlorophyceae) and euglenoids (Euglenophyceae). Diatoms were dominated in species number (64.7%) cell (68.6%) followed by (23.5%) (15.5%), the ...

Phytoplanktons are the first bio- indicators of pollution in aquatic ecosystems. Phytoplankton assemblage and aquatic ecosystems are always influenced by environmental factors therefore these environmental changes and threats must be understood in any ecosystem. Phytoplankton are inexpensive and readily available bio- indicators. In the present study, phytoplankton were used to study the Sefid ...