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)
♦ ²Groundfish 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.
♦ ³Food habits of the longnose skate, Raja rhina (Jordan and Gilbert, 1880), in central California waters, Heather J. Robinson, Gregor M. Cailliet, David A. Ebert, Environ Biol Fish (2007) 80:165–179
♦ ⁴CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database