The joint management of Norway and Russia in the Barents Sea has been successful in conserving the living marine resources and is a major factor contributing to the present rich fisheries in the area. The basis for this conservation success is scientific research, which, to a large extent, has been conducted through a long-lasting co-operation between Russian and Norwegian scientists that has expanded greatly over the past half century. Based on joint Russian-Norwegian authorships, this monumental book celebrates the scientific co-operation by reflecting on the historical development and the scientific methods applied, and by offering a comprehensive presentation of the vast knowledge of the Barents Sea resources and ecosystem obtained through these co-operative efforts.