The current project aims to explore the potential of ecosystem based management on the marine shelves at Iceland, Faroe Islands and Norway. It was found that oceanographich features like the size of the subpolar gyre or the strength of the East Icelandic Current (EIC) were of great importance to demersal fish and seabirds. The predators on fish larvae were found to be pelagic fish such as herring and mackerel, but also Norway pout was considered. A main finding, which probably is novel, was that the abundance of demersal fish could hamper the predatory effect of pelagic fish on fish larvae. The effect of demersal fish on the survival of fish larvae seemed to be less than the effect of oceanographic variables or primary production, but, nevertheless, seemed to hold a potential that should be further studied in the future.