Thef t: are nuinv advantages to raising fish m cages. Cage confinement means fish can be grown in streams and rapidly moving water without any fear of losing them to the natural environment. Feed waste is greatly reduced since the feeding is concentrated in a very small area. Because the movement of the fish is restricted, they do not need much feetl to survive. They just eat and grow! Monitoring fish growth and health is greatly simplified, and the threat of predators is reduced. For 100-percent harvest, the cages are simply lifted from the water—no fishing, draining, or seining (harvesting with a drag net) is necessary.
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