Russian Journal of Marine Biology

, Volume 28, Supplement 1, pp S56–S63 | Cite as

Leptostraca, Mysidacea, Isopoda, and Decapoda (Anomura) (Crustacea, Malacostraca) of the Chukchi Sea and Adjacent Waters: Biogeography and Fauna Formation

  • V. V. Petryashev


Data on the distribution of 72 species of Leptostraca, Decapoda: Reptantia: Anomura, Mysidacea, and Isopoda in the northern Bering Sea, the Chukchi and East Siberian seas, and the adjacent areas of the continental slope in the Arctic basin at depths less than 500 m were used for biogeographic analysis. According to distribution, these species can be united into 15 biogeographic groups. The hydrological regime, primarily, the distribution of waters of different origin in the investigated regions, governs the distribution of different biogeographic groups of crustaceans. Pacific boreal and subtropic-boreal species mostly inhabit the southern part of the Chukchi Sea, coastal waters off Alaska to Point Barrow, and the central region of this sea to the Herald Bank. For these taxa, the boundary between the Pacific and Arctic faunas is in the Chukchi Sea crossing from Cape Serdtse Kamen and Point Barrow to the area west of the Herald Bank. Possible pathways and the major stages of formation of the fauna of the investigated crustaceans for the last 18000 years are discussed.

Malacostraca fauna biogeographty Arctic Bering Sea 


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Copyright information

© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • V. V. Petryashev
    • 1
  1. 1.Zoological InstituteRussian Academy of SciencesSt. PetersburgRussia

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