Attributes / relations provided by
♦ 1Feeding habits and trophic levels of Mediterranean fish, Konstantinos I. Stergiou & Vasiliki S. Karpouzi, Reviews in Fish Biology and Fisheries 11: 217–254, 2002
♦ 2Diet comparison of four ray species (Raja clavata, Raja brachyura, Raja montagui and Leucoraja naevus) caught along the Portuguese continental shelf, Inês Farias, Ivone Figueiredo, Teresa Moura, Leonel Serrano Gordo, Ana Neves and Bárbara Serra-Pereira, Aquat. Living Resour. 19, 105114 (2006)
♦ 3Feeding habits of grey gurnard, Eutrigla gurnardus (L., 1758), along the Catalan coast (northwestern Mediterranean), R. Moreno-Amich, Hydrobiologia 273: 57-66, 1994.