Climate change in Tonga poses a severe threat to the coastal fisheries and aquaculture sectors, which play a significant role in food and nutrition security, local livelihoods and the national economy. More severe extreme weather events, rising sea levels , increasing water temperature, and ocean acidification, are expected to have profoundly negative effects on the status and distribution of coastal habitats, and the fish and invertebrates they support. As a result, the productivity of coastal fisheries and aquaculture will decline. This project aims at building the resilience of key marine ecosystems and the coastal fisheries and aquaculture sectors they support by fostering resilient ecosystem and community-based fisheries/aquaculture management, enhancing livelihood resilience and strengthening governance, knowledge management, institutional and policy frameworks. The Pacific Community (SPC) is the accredited entity and the project will be implemented by the Ministry of Fisheries, MEIDDECC and SPC (Coastal fisheries and aquaculture division).