India's Central Marine Fisheries Research Institute (CMFRI) has successfully implemented Integrated Multi-trophic Aquaculture (IMTA) in collaboration with local fish farmers in Moothakunnam, Ernakulam, resulting in the production of approximately one tonne of green mussel from 150 strings around four fish cages. Despite the harvest happening during the Covid lockdown, the produce was quickly sold out. The institute believes that IMTA is economically viable and well suited to Kerala’s conditions, as it leads to better growth in fish and seaweed, and helps maintain environmental sustainability by using excess nutrients and carbon dioxide from the cage farm. CMFRI plans to promote this innovative technology among coastal communities to enhance income.