C. Olabarria ([email protected]), I. Gestoso and C. Sobrino, Depto de Ecolox í a e Biolox í a Animal, Univ. de Vigo, Campus LagoasMarcosende, ES-36310 Vigo, Spain. – F. Arenas, M. Rubal, P. Veiga and F. Vaz-Pinto, Lab. of Coastal Biodiversity, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Univ. of Porto, Rua dos Bragas 289, PT-4050-123 Porto, Portugal. FV-P also at: ...