ABSTRACT
Central Marine Fisheries Research Institute being the pioneer to the initiate open sea cage culture in Indian waters has been striving hard to promote open sea cage culture at selected locations in all the Maritime states with the involvement of the fisherman community. The low cost cage developed at Karwar is made of 1.5 GI pipe. In the case of low cost cage the outer net is 60 cm above water level and provides no chance for predatory fishes to enter in the middle space. The diameter of the high density polyethylene cage and low cost cage is 6 meters and Depth of the net also is 6 meters. Open sea cage culture in India is promoted by the government of India in a big way to increase fish production from coastal waters and to provide livelihood option to the fishermen. The whole concept of developing the low cost cage was to reduce the input cost and increase the profitability.
