1. IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P.; Division of Aquaculture and Upgrading, Avenida de Brasília; 1449-006 Lisboa Portugal
2. ICBAS-UP, Abel Salazar Institute for the Biomedical Sciences; University of Porto; Rua Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
3. CIIMAR/CIMAR, Interdisciplinary Center of Marine and Environmental Research; University of Porto; Rua dos Bragas 289 4050-123 Porto Portugal
4. CERNAS; College of Agriculture of the Polytechnic Institute of Coimbra, Bencanta; 3045-601 Coimbra Portugal