The fauna of fishes and its unusual elements in water basins of Chelabinsk and Kurgan regions

Species structure of fishes in water basins of Chelabinsk and Kurgan regions has been described. Introduction of several European species in the region of west Siberia has been mentioned; the absence of changes in morpho-biological features has been given. Atypical species of fishes in plains of east Urals were represented. In addition, main specific features of stream and brook ecotypes of grayling have been shown.