Trisopterus esmarkii - North Sea (Subarea 27.4) - Skagerrak and Kattegat (Division 27.3.a) - Norwegian Directorate of Fisheries - Skagerrak and Kattegat (Division 27.3.a) - Irish Sea, West of Ireland, Porcupine Bank, Eastern and Western English Channel, etc (Subarea 27.7) - Norwegian Sea (Division 27.2.a) - Norway - Single boat midwater otter trawls
