1. Centre for Environmental and Marine Studies (CESAM); University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
2. Department of Animal Medicine, Surgery and Anatomy; Veterinary Faculty; University of León; Campus de Verganzana 24071 León Spain
3. Imaging Diagnosis Service; Universitary Veterinary Hospital Rof Codina; Department Veterinary Clinical Science; Veterinary Faculty; University of Santiago de Compostela; Avda.Carballo Calero s/n 27002 Lugo Spain
4. ECOBIOMAR; Institute of Marine Research; (IIM-CSIC); C7Eduardo Cabello 6 36208 Vigo Spain
5. Department of Anatomy and Embriology; Veterinary Faculty of Autonomous University of Barcelona; Edifici V, Campus UAB 08193 Bellaterra Spain