The two-day event dedicated to the operating procedures for the breeding of algae of commercial interest was held in Cattolica (RN) – Ulva lactuga and Gracilaria spp – at selected long-line plants in Italy and Croatia. The project event will be held on 17 and 18 March 2025 INTERREG Italy – Croatia entitled “Development support of blue biorefinery in the Adriatic Sea”, it was also opportunity to transfer information and compare with other projects such as our LIFE Muscles whose objectives and actions were illustrated thanks to the intervention of Eraldo Rambaldi, contact for the partner AMA, Associazione Mediterranea Acquacoltori.