TY JOUR TI LONG CLAWED CRAYFISH AS AN OBJECT OF BREEDING IN WATER BODIES OF THE RIVER VOLGA BASIN KW crayfish KW subfamily Astacinae KW identification KW wild breeders KW freshwater water bodies KW Upper KW Middle KW Lower Volga KW crayfish breeding JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Alexandrova, E.. PY 2016 IS 2016 PB Astrakhan State Technical University