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)
♦ ²Diets of the demersal fishes on the shelf off Iwate, northern Japan, T. Fujita, D. Kitagawa, Y. Okuyama, Y. Ishito, T. Inada, Y. Jin, Marine Biology (1995) 123:219-233