LIEN SPECIES OF AMPHIPODS (AMPHIPODA, GAMMARIDEA) IN THE BOTTOM COMMUNITIES OF KUIBYSHEV AND SARATOV RESERVOIRS: FEATURES OF DISTRIBUTION AND LIFECYCLES STRATEGIES
Analysis of the composition, distribution of alien species of amphipods, quantitative evaluation of macrozoobenthos communities based on the results of studies of 2009-2012 in the Saratov and Kuibyshev reservoirs is given. It is shown that amphopods Pontogammarus robustoides and Dikerogammarus haemobaphes have the highest invasiveness in comparison with other species in the reservoirs as well as in its tributaries. The features of the life cycle of common amphipod species that contribute to their distribution in the reservoirs of the Middle and Lower Volga are revealed.