Biogeographical Division of the North Pacific Sublittoral and Upper Bathyal Zones by the Fauna of Mysidacea and Anomura (Crustacea)

Abstract

A biogeographical analysis of the North Pacific temperate waters is made on the basis of the distribution of 88 species of Mysidacea (Crustacea) and 111 species of Anomura (Crustacea: Decapoda: Reptantia) inhabiting depths from 0 to 1000–12000 m. At depths from 0 to 180–200 m and from 180–200 to 1000–1200 m, division by mysid fauna is made separately; division according to anomurans is unified. Original schemes of faunistic zonation of the North Pacific are given. The influence of abiotic factors, primarily temperature, on the formation of distribution ranges of Pacific boreal species is examined.