Recirculating aquaculture systems (RAS) are the newest form of fish farming production system. RAS are typically an indoor system that allows for farmers to control environmental conditions year round.
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While the costs associated with constructing a RAS are typically higher than either pond or cage culture, if the system is managed properly to produce fish on a year round basis, the economic returns can make it worth the increased investment. RAS are the most complex aquaculture systems and beginners should plan on making a significant time commitment to learning how to operate a system.
Source: indianafishfarming
