Sesonal dynamics of feeding of Russian spirlin Alburnoides rossicus from Cheptsa river in the Udmurt Republic

Seasonal dynamics of feeding of Russian spirlin Alburnoides rossicus from Cheptsa River in the Udmurt Republic were studied. The food spectrum of Russian spirlin consists of 64 components, among them 9% - algae and higher plants, 86% - invertebrates, 5% - organic residues, detritus and mineral components. Two types of insects were found: benthic forms, and land-air. Russian spirlin is a typical polyphage. Seasonal changes in the diet of fish associated with the development cycles of food items - prevailing in benthic invertebrates and algae.