Our oceans and coasts are home to ecosystems that provide immense benefits to people, from food and livelihoods to carbon storage and coastal protection. In particular, seagrass meadows are archetypal social-ecological systems (SES), linking human well-being to ecosystem health. But to manage these systems effectively, we need access to both ecological data (such as habitat extent, biodiversity, or water quality) and social data (such as fishing activity, governance, or community use). In a...