Covering more than 60% of the lake surface, macrophytes determined the taxonomic composition of phytoplankton. We have found numerous indications of ecological deterioration and an increased trophic level year to year: an increased total number of taxa; a significantly increased number of species of Chlorophyta, Bacillariophyceae and Cyanoprokaryota; a decreased number of Chrysophyceae; increas...

Between May and November 2006, the epipelic algal flora and its seasonal variations in the Balikli Dam Reservoir were investigated. A total of 55 species were identified, most of which belonged to the Bacillariophyta (31). Other taxonomic groups present were Chlorophyta (9), Cyanoprokaryota (8) and Euglenophyta (7). Navicula cryptocephala, N. veneta and Hannaea arcus were the most important spe...

The filamentous spirally coiled cyanoprokaryote Arthrospira fusiformis is found in extremely high densities in tropical soda lakes acting as driving force of the food web. We studied pronounced temporal morphological changes of Arthrospira in Kenyan soda lakes, Nakuru and Bogoria, and identified underlying key factors. Cell (diameter and height) and filament (height of coil, coil diameter, and ...