Attributes / relations provided by
♦ ¹Groundfish Food Habits and Predation on Commercially Important Prey Species in the Eastern Bering Sea From 1997 Through 2001, Lang, G. M., P. A. Livingston, and K. A. Dodd, 2005, U.S. Dep. Comer., NOAA Tech. Memo. NMFS-AFSC-158, 230 p.
♦ ²Summer 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)
♦ ³Diets of the demersal fishes on the shelf off Iwate, northern Japan, T. Fujita, D. Kitagawa, Y. Okuyama, Y. Ishito, T. Inada, Y. Jin, Marine Biology (1995) 123:219-233
♦ ⁴THE 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