The present invention relates to a buoy for aquaculture, and more particularly, to a buoy for aquaculture capable of maintaining buoyancy even when externally damaged. The buoy for aquaculture of the present invention has a double structure, so even when the buoy body is damaged, buoyancy is provided so that the buoyant can be floated, so that the aquaculture net can be stably supported. In addition, the buoyancy for aquaculture of the present invention is induced so that the buoyancy providing tube accommodated in the buoy body by a plurality of bands expands to correspond to the inner shape of the buoy body, and increases when descending to the bottom of the water by an external force such as a current or a wave. There is an advantage that the stress to the water pressure can be increased so that the shape can be maintained.
展开▼
