Species composition and distribution features of the ichthyofauna of the Kama reservoir

Abstract

Рresents information about the current composition of the ichthyofauna of the Kama reservoir, based on long-term research of the Perm branch of the Federal state budgetary scientific institution "all-Russian research Institute of fisheries and Oceanography" (FSBSE «VNIRO») (until 2019 Perm branch of FSBSE "GosNIORKh") for the period 2000–2020. The regularity of increasing the species diversity of ichthyofauna in the North-South directions is confirmed by the example of a number of reservoirs of the Volga-Kama cascade. Data on the relative abundance of species in the context of the accepted hydrological scheme of zoning of the Kama reservoir are presented. The species composition of the ichthyofauna of the Kama reservoir, including 31 species of fish from 11 families belonging to 7 orders, is established. The features of the distribution of the species composition of the ichthyofauna and the relative number of fish in the areas of the Kama and Chusovsky ples of the reservoir are considered, both at the present stage of the reservoir's existence and in comparison with retrospective data.