ZABrI is part of the Zones Ateliers, a vast network of interdisciplinary research on the environment and anthroposystems in relation to societal issues of national interest. The ZA network, member of ILTER and LTER-Europe, is coordinated by INEE-CNRS. Within the national network, ZABrI is the only Zone Atelier in a coastal area. The ZAs study the interactions between an environment and all those who occupy and exploit it. Understanding these interactions requires a multidisciplinary approach, including, in particular, physical sciences, life sciences, human sciences, and engineering sciences, in order to respond to specific issues concerning the area in question, that can be developed in cooperation with the managers involved. ZABrI is coordinated by two laboratories of the European Institute for Marine Studies (IUEM): LETG and LEMAR, and includes several Breton laboratories doing research on 4 major topics concerning the coast: • Theme 1: Coastal vulnerability • Theme 2: Water quality and biodiversity along the land-sea continuum • Theme 3: Sustainability between restoration, conservation, exploitation and uses • Theme 4: Long-term trajectories of socio-ecological systems ZABrI aims to improve knowledge of the functioning and evolution of coastal social-ecological systems in a changing environment, within a perspective of integrated management, by favoring an interdisciplinary and intersectoral approach along the land-sea continuum.Understanding these processes requires taking into account knowledge from a multitude of disciplines, from long-term observations on various spatial and temporal scales, and putting into place initiatives and tools to promote knowledge sharing. Because these issues have a significant social dimension, the project also includes conditions for the transfer of knowledge to non-scientists as well as for bringing together relevant knowledge from other sectors of society and making it available. Stakeholder partnerships are involved at all stages of the research process, e.g. by contributing to decision support.