Blue Frontiers: Managing the environmental costs of aquaculture is a report prepared by the WorldFish Center and Conservation International. This global review of aquaculture aims to inform policy makers about the impacts of aquaculture on the environment and to stimulate debate on the optimal animal food production systems for tomorrow. The ASEAN region is, from supply and demand perspectives, an important center for aquaculture. This short brief highlights some of the key study findings that are relevant to the ASEAN region.