Alien Species of Zooplankton in Saratov Reservoir (Russia, Volga River)

摘要

The data on ahen species of zooplankton of Saratov Reservoir of the Volga River are presented. Materials were collected during the period of 2002—2009. Species compositidn, seasonal dynamics and contribution of ahen species into biomass of reservoirzooplankton are investigated. There are 11 alien species coming from the northern basins of Europe and 5 ones coming from southern water bodies. Alien species are important part of zooplankton of Saratov Reservoir during all seasons of the year; they canform 10 to 70% of zooplankton biomass. Saratov Reservoir is a recipient zone and part of important invasive corridor—the reservoir system of the Volga River