Phytoplankton of saline rivers of the lake Elton basin

Is given the results of studies of phytoplankton seven highly mineralized rivers of the lake Elton basin in 2008 and 2012-14. Identified 116 taxa of algae of 7 systematic divisions, characterized taxonomic structure. Species richness and the level of quantitative development determined mainly Bacillariophyta. Maximum values ​​of the abundance of phytoplankton are often formed in the estuaries of rivers. Revealed abundant species ( Chaetoceros muelleri Lemm., Nitzschia closterium Ehr., species of the genera Thalassiosira, Cyclotella, Dunaliella, Amphora coffeaeformis (Ag.) Kütz., Achnanthes brevipes ), belonging to the widespread euryhaline species. The change in the abundance and biomass of phytoplankton does not depend on the level of salinity in rivers, specific species richness was negatively correlated with the magnitude of salinity. A noticeable change in the structural characteristics of the communities identify monodominant communities in the salinity range of 6,6 to 41.4 g / L.