[1]●●●●○●●Baltic/Kattegat [2]○●●●●●●EU-wide [3]●●●●○○●Ionian Sea [4]●○●●●○○EU/North Sea [5]○○○○●○●EU-wide [6]●●●●○○●North Sea [7]●●●●○○●W. Baltic [8]●●●●○○○NE Atlantic [9]●●○●○●●EU deep-sea, NE Atlantic [10]●●○●○●●EU-wide [11]○●●●●○●EU-wide [12]●●●●○●●NE Atl. + Med [13]●○●●●○●Denmark to Atlantic & Arctic [14]●●○●○●●E. Mediterranean [15]●●●●●○●California