The Living North Sea project will solve problems surrounding the management of fish species which rely on moving between the North Sea and freshwater systems of partner countries. These species are under considerable threat, some even in hazardous decline. Living North Sea brings together representatives from every North Sea Interreg partner country, in a programme which will make long lasting changes to the way that economically, environmentally, and socially important migratory fish species, whose stocks are shared between nations, are managed in the region. LNS will create a permanent management group for migratory fish of these habitats which will continue to work collaboratively, but will also tackle decision making processes to ensure that the results of the Living North Sea project are firmly integrated into future national and European policies. Achievements: • 19 demonstration sites for solutions to fish passage at man-made barriers.• Management plan for sea trout in the North Sea Region. • Genetic baseline for identifying significant shared populations & identifying the home rivers of fish at sea.• Tools and collaborative processes for tracking fish at sea and identifying critical areas for marine spatial planning.• Best practice manuals, expert advice & management group for fish migration issues.• ICES working groups contributing to EU policy.• WebGIS mapping tools for sharing fish migration barrier data & prioritising mitigation.• Fish Migration Day – a long lasting public event