The first information about algoflora reservoirs Оstrovzovskaja and Kuncherovskaja forest-steppes of the Penza area

The first information about algoflora a plankton of the reservoirs located in territory Ostrovzovskaja and Kuncherovskaja forest-steppes of the Penza area are resulted. The part of reservoirs is populated by beavers. It is shown, that the greatest specific abundance, a variety of seaweed, the maximal parameters of number and a biomass are registered in р. Hoper and a large pond of forest-steppe Kuncherovskaja. The greatest contribution to formation common number phytoplankton brought blue-green and green algae, biomass - diatoms. The minimal parameters of quantitative progress phytoplankton are noted in the ephemeral reservoirs. In a beaver pond the greatest contribution to formation of an aggregate number and a biomass phytoplankton brought Ulothrix tennerima Kütz. - epiphyte which, most likely, develops on the flooded trees.