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)
♦ ²SEASONAL AND SPATIAL DIFFERENCES IN DIET IN THE WESTERN STOCK OF STELLER SEA LIONS (EUMETOPIAS JUBATUS), E. H. Sinclair and T. K. Zeppelin, Journal of Mammalogy Vol. 83, No. 4 (Nov., 2002), pp. 973-990