AI Insight
Recirculating aquaculture systems (RAS) are emerging as a sustainable fish farming technology that filters and reuses water, reducing water consumption and environmental impacts while allowing better control of rearing conditions. However, these systems currently consume substantial amounts of electricity because pumps, filters, aerators, and other equipment typically run continuously or on fixed conservative schedules to maintain stable conditions for fish. The article suggests that smarter, more dynamic operation of this equipment could significantly reduce electricity use and carbon dioxide emissions without compromising fish safety.
Why it matters
Optimizing the operation of RAS facilities could make sustainable aquaculture more energy-efficient and cost-effective, potentially reducing the carbon footprint of fish farming while maintaining animal welfare standards. This approach could help scale up environmentally responsible aquaculture to meet growing global demand for seafood.
Understand the Science
Recirculating aquaculture systems (RAS) are attracting growing attention as a sustainable aquaculture technology that can reduce water use, control rearing conditions and lower environmental impacts by filtering and reusing water. At the same time, RAS facilities rely on pumps, filters, aerators and other equipment that are often operated continuously or according to conservative fixed schedules, resulting in substantial electricity consumption to maintain stable rearing conditions.
Source: Smarter fish farms could cut electricity use and CO₂ while keeping fish safe