The Role of ‘Aquaponics’ in Recirculating Aquaculture Systems
Recirculating aquaculture systems (RAS) are designed to recondition “used” fish
water so that it can be recycled back into the fish-rearing tank(s). These
systems have become popular because of the ability to control water parameters,
their high-density rearing capabilities, and their potential for water conservation.
Because of the accumulation of nutrients in these systems, they offer an
underutilized resource for persons willing to transform an existing RAS into
one that integrates plants. A secondary crop of plants can add to the system’s
profit, with little overhead cost. The reduction of certain nutrients by
the plants can also benefit the system by reducing or eliminating expensive
filtration components. These integrated systems have gained recognition by
researchers and commercial users alike, and have stimulated the interest
of many because of their resource-efficient and “eco-friendly” status.