Leptostraca,Mysidacea, Isopoda,and Decapoda (Anomura) (Crustacea,Malacostraca) of the Chukchi Sea and Adjacent Waters: Hydrological Regime and Species Composition

The hydrological regime of the region is briefly outlined. The distribution of waters of Arctic and Pacific origin is discussed. Based on the original and literature data, it has been found that 73 species of the investigated orders occur in the northern part of the Bering Sea, in the Chukchi and East Siberian seas, and in the adjoining areas of the continental slope of the Arctic basin at depths down to 500 m. These are 1 leptostracan species, 11 anomurans, 22 mysids, and 39 free-living isopods. The distribution of these species by depth and in relation to the thermal and salinity characteristics of waters is analyzed.