REVIEW ON TEE DISTRIBUTION IN RELATION TO ZONES OF EXTENDED FISEERIES

Two- and three-year olds ;ire able to make active movemepts. They choose the warmest places in the sea for winter, and summer migrations are aimed to search far food. Differences in· the distribution patterns of juveniles are in some years associated with hydrological peculiarities. The feeding and wintering migrations become more extensive with age. Three- to four-year olds gather in large schools and 4 to 5 year olds make rather long migrations. In summer they are dispersed on shallow banks in the southern Barents Sea and around Bear Island - Spitsbergen for feeding. When the feeding season is over, cod form schools at low depths and migrate to wintering grounds situated in the south Barents Sea (off East Finnmark, West Murman coast) and on slopes of the Bear Island. In warm years the wintering grounds are extended to the Goose Bank in the South Barents Sea and to the southern West Spitsbergen banks. In cool years the wintering and feeding grounds are shifted westwards.