This presentation highlights seaweed production through Integrated Multi-Trophic Aquaculture (IMTA), explaining how this approach maximizes resource efficiency. It reviews various IMTA examples, such as integrated green water aquaculture, biofloc systems, and aquaponics. A case study from Sanggou Bay, China, is presented. IMTA's values such as ecosystem services and its role in enhancing societal and political acceptance of aquaculture is illustrated..