New article: “Nitrogen Budget Illustrates the Efficiency of Co-Farming Sea Lettuce (Ulva fenestrata) with Cold-Water Fish in a Marine Recirculating Aquaculture System”
By co-cultivating sea lettuce (Ulva fenestrata) with fish such as rainbow trout and catfish in land-based recirculating aquaculture systems, the amount of biomass produced can be increased while improving resource efficiency and sustainability, as the sea lettuce absorbs dissolved nitrogen from the water and recycles it. In experiments, the sea lettuce absorbed 1 to 1.5% of the nitrogen introduced into the system. The experiments show that the ideal ratio of sea lettuce to fish in the system is 0.7.