Laboratory of Marine Research, Zoological Institute, St. Petersburg, RUSSIA Ocean Climate Laboratory, NODC/NOAA, USA Presented are physical and biological data for the Arctic and sub-Arctic regions extending from the Barents Sea to the Northwest Pacific, sampled during 25 scientific cruises for the period 1903-1956. All primary data are presented on this CD-ROM in a common format, along with maps of the station locations and a listing of zooplankton taxa collected during these cruises. All taxanomic descriptions have been reviewed against the ITIS taxanomic database and other literature sources.