An open water fish farming system 1 comprises one or more fish cages 4 placed within an elongated, cylindrically-shaped structure with one or two conically-shaped ends. The structure is surrounded by a net (43, figure 2), has one or more buoys 84 connected and an anchor 72 connected by means of an anchor rope 71, and further comprises one or more openings 211, 260 and one or more weights 61, 66 to provide balance against water currents. The buoys may be connected to one or more air tubes 82, 83 for the entry or release of air into or out of the system. The elongated shape of the structure is preferably provided by tubes or frame rings (11, 21, 31 figure 1). The structure may rotate fully through 360 degrees and may tilt when acted upon by water currents. The structure may be floated to sea level by the provision of air into buoyancy compensators.
展开▼