The Khanty-Mansi Autonomous Okrug-Yugra (Russia) typical intra-bog algocenoses analytical assessment

Abstract

The work was carried out on the Khanty-Mansiysk Autonomous Okrug nine typical intra-bog lakes freshwater algae material in the period 2008-2018. The studies were carried out according to the classical methods adopted in algology. Species identification was carried out using light microscopes Nikon ECLIPSE E200 and OLYMPUS SX4, taking into account the nomenclature changes published in the international electronic database Algae Base. Algae, mainly phytoplankton, were studied in nine lakes with a 50 to 1162 hectares area. Each of the analysed limnological systems is characterized by both general and specific features, which, on the one hand, reflects belonging to high latitudes water bodies, and on the other hand, indicates the differences between each of the systems, due to their type and anthropogenic load. A high significance was revealed in the families Desmidiaceae and Eunatiae all lakes, a generic ranks structure significant diversity, in which the genera Dinobryon, Eunotia, Staurastrum are of the greatest importance. The work analyses the identified algae taxonomic composition calculates the algocenoses saturation, specificity, and similarity coefficients, and the dominants’ composition.