Coastal and marine ecological corridors are an important element in the Pan-european Ecological Network. Coastal corridors are essential for migrating birds and include sea straits. Shorebirds often move along the coast, itself one long corridor interrupted only by infrastructure and other developments.Many marine corridors form part of the migration route of a considerable number of mobile marine species and are often narrow stretches of water (e.g. sea straits and river mouths).This study aims at contributing to the identification of the main marine and coastal ecological corridors in Europe.