SAFER-IMTA: Integrated Multitrophic Aquaculture for Sustainable and Safe Food Production

The global aquaculture sector continues to grow to meet the food demands of an expanding population, yet current feed production depends on limited and often unsustainable raw materials. At the same time, nutrient-rich emissions from aquaculture represent both an underused resource and an increasing environmental concern. SAFER‑IMTA brings together expertise from Norway (Møreforsking) and China (Institute of Hydrobiology and Shenzhen University) to demonstrate how integrated multitrophic aquaculture (IMTA) can maximise resource utilisation while reducing environmental footprints.

The project develops advanced land‑based systems for the co‑cultivation of low‑trophic species — including microalgae, macroalgae, and sea cucumbers — using particulate and dissolved effluents from carp and salmon farming. By combining biological processes with physical and chemical treatment methods, the project aims to convert waste streams into valuable substrates. The resulting products are evaluated for food and feed applications, with focus on safety, nutritional value, and the presence of undesirable substances.

Life‑cycle assessments provide insight into environmental performance, while stakeholder dialogue and regulatory reviews help identify barriers and drivers for IMTA development. The project’s overall ambition is to support technological innovation and contribute to sustainable, circular value chains within the aquaculture industry.