Species diversity and conservation status of cartilaginous fishes (Chondrichthyes) of Russian waters

The paper considers the composition of the fauna of cartilaginous fishes (Chondrichthyes) in the waters adjacent to the coast of the Russian Federation. Its features are analyzed in the seas of basins of different oceans. The conservation status of cartilaginous fishes in the waters of Russia is assessed according to the criteria of the International Union for Conservation of Nature. The current state of individual threatened species is briefly characterized.