Marine SABRES is an EU-funded research project that brings together 21 research partners to restore marine biodiversity and support a sustainable blue economy by increasing the uptake of ecosystem-based management in Europe. To make ecosystem-based management more achievable and implementable, we need to comprehensively study and analyse marine social-ecological systems. Marine SABRES is therefore co-developing and testing a simple socio-ecological system in collaboration with local people in three European marine regions: the Arctic Northeast Atlantic, the Tuscan Archipelago, and Macaronesia. For more information, visit the project website.