Речные раки (Crustacea, Astacidae) Советского Союза. Сообщение III. Распространение речных раков родов Astacus, Cambaroides и Austropotamobius

Abstract

In distribution of crayfishes of Astacus, Cambaroides and Austropotamobius genera the same peculiarity is observed which was observed in distribution of Astacus (Pontastacus) leptodactylus the combined dwelling in the same water body of some taxons. As in most cases the populations of these species and their small taxons has no food value in some countries (Sweden, Finland etc.) attempts are made to substitute Pacifastacus leniusculus (Dana) for A. astacus L. the acclimatization of which in the USSR began in 1972.