Feeding variability of round goby Neogobius Melanostomus (perciformes, gobiidae) of Saratov Reservoir

Seasonal and annual feeding dynamics of round goby Neogobius Melanostomus in Saratov Reservoir were investigated. During the research period food basis consisted of mollusks of genus Dreissena, other groups of zoobenthos were represented insignificantly. Seasonal changes of food spectrum and feeding objects ratio were caused by their biological development.