The roughly 50 artificial reefs, particularly in the waters of Port Olímpic, have become a refuge and breeding ground for a variety of these species just one year after their installation. Among the species being rescued are molluscs, crustaceans and sponges, together with fish from families including wrasses, blennies and sea breams. This is a major step forward for the conservation of these marine species, the health of the population of fish, as well as the promotion for marine biodiversity. Moreover, Port Olímpic has established itself as a leading harbour in Spain for these types of restorative projects.