Australian governments have legal obligations to promote the recovery of threatened species and ecological communities. They assess nominations for threatened category listings, develop and monitor recovery actions, identify important habitats, and set policies to regulate development. This requires timely scientific advice on the status of populations and communities, the threats they face, are how these are changing. The hub provides this advice for selected threatened and migratory marine species and ecological communities. Our projects bring people together to consolidate and provide access to available knowledge, identify research needs, and collect data through surveys, tagging, mapping, citizen science and experimentation. We advise on the movements, distribution, connectivity and status of populations, and develop restoration strategies and techniques for ecological communities.