Attributes / relations provided by
♦ ¹Diet and trophic ecology of skates in the Gulf of Alaska (Raja and Bathyraja spp.): ecological information for ecosystem–based management of demersal resources, David A. Ebert, Joseph J. Bizzarro, Simon C. Brown, Mariah D. Boyle, and Gregor M. Cailliet, NPRB Project 621 Final Report (2008)
♦ ²Seabird distribution, abundance and diets in the eastern and central Aleutian Islands, J. JAHNCKE, K. O. COYLE AND GEORGE L. HUNT, JR, Fish. Oceanogr. 14 (Suppl. 1), 160–177, 2005