Pierre KarleskindGreen deal, biodiversity strategy, Farm to fork strategy… the ambitions that the European Union address in 2020 have connections with the ocean. In a world in which interactions are more and more complex, decision-makers need to rely more and more and robust, shared and evolutive science expertise. Relying on the Horizon Europe framework program, the “Starfish 2030” mission proposes to adopt a research strategy in order to fulfill theses ambitions and to give politicians keys for acti ng in the next 10 years in the field of ocean. 5 overarching objectives drive this missions : (i) Filling the knowledge and emotional gap, (ii)regenerating marine and freshwater ecosystems, (iii) zero pollution, (iv) decarbonising our ocean, and waters (v) revampinggovernance.