Complete2025
The global demand for seafood continues to rise - but traditional fishing and conventional aquaculture practices are under increasing pressure. Overfishing depletes wild fish stocks, while pond/tank-based fish farms often struggle with water scarcity, environmental pollution, disease outbreaks, and unpredictable yields. Enter Recirculating Aquaculture Systems (RAS) - a modern, efficient, and sustainable approach to fish production that could transform the aquaculture industry for the better.
What Is RAS - A Quick Overview
RAS refers to land-based, closed-loop fish farming systems where water is continuously filtered, treated, and recycled inside the facility. Instead of relying on endless inflows of fresh water (as in ponds or net pens), water in an RAS facility circulates through a multi-stage treatment loop - removing waste, filtering solids, converting toxic ammonia, maintaining oxygenation, and disinfecting before returning to the fish tanks. Only a small amount of freshwater is added periodically to compensate for losses due to evaporation and waste disposal.