Attributes / relations provided by
♦ ¹Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
♦ 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