Attributes / relations provided by
♦ ¹CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ ²Winter Diet of Atlantic Puffins (Fratercula arctica) in the Northeast Atlantic, Knud Falk, Jens-Kjeld Jensen and Kaj Kampp, Colonial Waterbirds, Vol. 15, No. 2 (1992), pp. 230-235
♦ ³The diet of haddock (Melanogrammus aeglefinus L.) in the Barents Sea during the period 1984–1991, Weimin Jiang and Terje Jørgensen, ICES J. mar. Sci., 53: 11–21. 1996