The data on alien species of zooplankton of Saratov Reservoir of the Volga River are
presented. Materials were collected during the period of 2002–2009. Species
composition, seasonal dynamics and contribution of alien species into biomass of
reservoir zooplankton 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 can form 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.
Key words: Saratov Reservoir, Volga River, biological invasion, zooplankton, alien
species.
