The Marine Biodiversity Observation Network (MBON) is the marine thematic branch of the Group on Earth Observations Biodiversity Observation Network (GEO BON), supported by 110 member countries, to grow a global community of practice, to develop and share best practices and standards on how to collect and share data about life in the sea. The MBON is a “coalition of the willing”, who agree to share knowledge and know-how to assess changes of biodiversity in the ocean, including data, products, protocols and methods, data systems and software, to inform and support ecosystem-based management and the long-term health and use of marine ecosystems. This network has its Executive Secretariat at the AIR Centre headquarters, on Terceira Island, as the result of a protocol signed in November 2018, between the MBON, the AIR Centre and the Azores Regional Fund for Science and Technology (FRCT).