Results of studying green algae Scenedesmus meyen in the plankton of the Vakh river

This paper is devoted to the study of algae belonging to the genus of Scenedesmus Meyen, family of Scenedesmaceae, class of Chlorophyceae, phylum of Chlorophyta, and assesses the dynamics of species richness and its development in equivalent to 1 liter of water. The researchers consider the environmental conditions for the development of algae and its spread along the Vakh River, including horizontal and vertical river stations. The paper contains the materials on the ecological and geographical characteristics of the species. The authors have taken into account the materials of the sampling conducted in the river in August 1989 and present the results of phytoplankton study conducted at the river estuary 600 m from the river’s fall into the Ob River during summer and autumn season of 2005-2006. The discussion is based on the year-round research of 2005-2007 conducted along the entire body of the river. The data obtained as a result of observations of the estuarine vertical river station conducted July 10, 2011, are of particular scientific interest...