Attributes / relations provided by
♦ ¹Summer Diet of the Harbour Porpoise (Phocoena phocoena) in the Estuary and the Northern Gulf of St. Lawrence, Pierre-Michel Fontaine, Mike O. Hammill, Cyrille Barrette, and Michael C. Kingsley, Can. J. Fish. Aquat. Sci. 51(1): 172–178 (1994)
♦ ²Estimated Fish Consumption by Hooded Seals (Cystophora cristata), in the Gulf of St. Lawrence, M. O. Hammill, C. Lydersen, K. M. Kovacs and B. Sjare, J. Northw. Atl. Fish. Sci., Vol. 22: 249–257 (1997)
♦ ³THE DIET OF HARBOUR PORPOISE (PHOCOENA PHOCOENA) IN THE NORTHEAST ATLANTIC, M. B. SANTOS & G. J. PIERCE, Oceanography and Marine Biology: an Annual Review 2003, 41, 355–390