recirculating aquaculture; closed-cycle fish farming
Technical term in agriculture for a system where water is reused and waste is treated, allowing fish to be raised in a controlled, closed environment.
In a recirculating aquaculture system, fish are raised by circulating the water.
This research institute succeeded in the closed-cycle farming of tuna.
養殖 is general aquaculture or fish farming, while 完全養殖 specifically refers to a closed, recirculating system where the entire life cycle is controlled.
Compound of 完全 (complete) and 養殖 (aquaculture), literally 'complete aquaculture'. The term is a modern technical coinage.