The publication presents the results of a floristic study of green algae of some salt lakes in the Republic of Khakassia: Shira, Tus, Ulugkol, Altaiskoe, conducted in the period from 2006 to 2019. The lakes are located in the steppe zone within the Chebakovo-Balakhtinsky and Minusinsky basins of the Nazarov-Minusinsky intermountain depression. The mineralization of water in the lakes for the study period was: 15,9–21,9 g/l (Lake Shira); 52,7–115,07 g/l (Lake Tus); 18,3–21,7 g/l (Lake Ulugkol); 42,7 g/l (Lake Altaiskoe). The values of pH of the water lakes are alkaline – 8,2–9,8. In plankton, benthos and periphyton of 4 lakes we found 30 species of green algae belonging to 5 classes, 10 orders, 17 families, 22 genera. Cladophora glomerata and Oocystis submarina species were discovered in all the lakes surveyed. In different algae communities, along with cyanoprokaryotes and diatoms from green algae, the following species dominated: Botryococcus braunii, Chlorella chlorelloides, Cladophora glomerata, Cladophora sp., Dunaliella salina, Hindakia tetrachotoma, Oocystis submarina, Rhizoclonium hieroglyphicum, R. riparium, Spermatozopsis exsultans, Sphaerocystis planctonica. Among them, highly active species with a relative frequency of occurrence of 74–50 % were: Dunaliella salina (in lakes Ulugkol and Altaiskoe), Sphaerocystis planctonica and Oocystis submarina (in lake Ulugkol). Rare species for the flora of the region are noted: Picocystis salinarum – in lake Altaiskoe, Percursaria percursa – in the lake Tus. In relation to water mineralization, the green algae of the studied lakes belonged to the groups of indifferents, halophiles, and polygalobes.
Biosorption of Cadmium as Toxic Metal from Aqueous Solutions by Marine Green Algae Ulva compressa (Linnaeus)
