Aquaculture cage designs are the foundation regarding cage farming. No successful design, no farming. In this blog, we are going to share the main aquaculture cage designs on the market.
1. The shape of a cage
There are rectangular, square, cylindrical, octagonal and so on. At present, many rectangles are used in production. It follows by squares because its operation is simple and convenient.
2. The size of the cage
The smallest net cage is about 1 square meter. Usually, the small net cage refers to 1~15 square meters. The net cage is 15~60 square meters for medium-sized. The large net cage is 60~100 square meters. Now the largest one can reach 500~600 square meters.
3. The height of the cage
The height of the cage is determined by the water depth and the plankton distribution. At present, it is commonly 1.5 to 2.5 meters high. The water is deep, it can also be used with 2~4 meters height. The distance between the bottom of the net box and the bottom of the lake should be at least 0.5 meters.
4. Mesh size
The size of the cage mesh should be determined according to the breeding object. Usually, 1.1 centimetres mesh is for 4 centimetres fish. 2.5 to 3 centimetres mesh is for 11~13 centimetres fish. 3~5 centimetres mesh is for mature fish. It is best to change the cage along with the fingerlings growth. The cage should cover or add extra facilities to prevent species from escaping. This is important for crabs and Monopterus albus.