Attributes / relations provided by
♦ ¹Diet 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, 105–114 (2006)
♦ ²Trophodynamics in a Shallow Lagoon off Northwestern Europe (Culbin Sands, Moray Firth): Spatial and Temporal Variability of Epibenthic Communities, Their Diets, and Consumption Efficiency, Vanda Mariyam Mendonça, David George Raffaelli, Peter R. Boyle, and Chas Emes, Zoological Studies 48(2): 196-214 (2009)