Attributes / relations provided by
♦ ¹Diet of Pacific sleeper shark, Somniosus pacificus, in the Gulf of Alaska, Mei-Sun Yang and Benjamin N. Page, Fish. Bull. 97:406–409 (1999)
♦ ²Food 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