The Workshop on Redfish Stock Structure (ICES, 2009a) reviewed the stock structure of Sebastes mentella in the Irminger Sea and adjacent waters. Based on the outcome of the WKREDS meeting, ICES concluded that there are three biological stocks of S. mentella:

• a “Deep Pelagic” stock (NAFO Areas 1–2, ICES Subareas V, XII, and XIV >500 m) – primarily pelagic habitats, including demersal habitats west of the Faroe Islands;
• a “Shallow Pelagic” stock (NAFO Areas 1–2, ICES Subareas V, XII, and XIV < 500 m) – extending to ICES Subareas I and II, but primarily pelagic habitats, including demersal habitats east of the Faroe Islands;
• an “Icelandic slope” stock (ICES Division Va and Subarea XIV) – primarily demersal habitats.