The liftable anti wind and wave cage can adjust the depth according to the needs. Because it can be arranged in the deep sea area with typhoon, it is also called the liftable deep-water anti wind and wave cage. Compared with traditional cages, large deep-water cages have the advantages of strong wind and wave resistance, large breeding capacity, fast fish growth speed and good product quality. The most important thing is that before the typhoon or red tide comes, the main floating tube is filled with water quickly, so that the cage sinks to the depth of 7 ~ 8 meters underwater. In this way, it can resist typhoons above grade 12, with wave resistance of 5 meters and current resistance of 1 meter. After the disaster, inflate the main floating pipe of the cage and let it float. The fish will not escape or die due to the disaster, and the fish farmers will reduce unnecessary losses.
1、To expand more suitable deep and open sea aquaculture areas for fish growth, reduce environmental pressure near the coast, which is conducive to the protection of the ecological environment and the full utilization of blue marine resources. On the other hand, it also alleviates the transition reclamation of land resources.
2、The liftable cage structure can effectively resist typhoon attack, especially suitable for the sea areas with more typhoons along the southern coast of China. It can greatly improve the usable area of coastal aquaculture areas in China
3、Aquaculture in the water layer more than 5 meters below the sea level has good water quality environment and gentle ocean current, which is suitable for the natural growth of fish. At the same time, due to the great reduction of water pollution, the reduction of disease hazards and the reduction of medication links, the quality of fish can be improved. The growth of fish is accelerated, the production efficiency is improved, the economic benefits are better, the income of fishermen is increased, and the fishing area can develop healthily and continuously.
4、The aquaculture sea area with good natural environment can combine the deep-water cage aquaculture with leisure and sightseeing fishery more closely. It can develop marine sightseeing, fishing, sports, tourism and other projects, which is also of positive significance to promote the development of leisure fisheries in China.v
Therefore, the development of lifting deep-water anti wind and wave cage is the key equipment for aquaculture industrialization. The following three core problems need to be solved:
First, deep-sea mooring technology, which is the basic guarantee for the safety of aquaculture equipment. The mooring equipment for deep-sea aquaculture implemented by Haosail in the Hawaiian sea area with a depth of 2065 meters in 2017 is still in stable output. Successful cases can enhance the confidence of farmers.
Second, cage technology.Deep-water aquaculture requires long service life and high reliability of aquaculture equipment. In particular, the strength of the net coat material ensures the risk of fish escaping.The alloy net developed and produced by Haosail can reach more than 5 years of service life. This also provides a reliable guarantee and application reference for deep and open sea aquaculture.
The third is automatic aquaculture equipment. The implementation of deep and open aquaculture requires intelligent and automatic control of equipment, such as bait feeding equipment, monitoring equipment and communication technology stability. These modules have mature applications at home and abroad, and need to be integrated according to different sea conditions and production requirements of different fish.
The research and application of the above three issues for aquaculture equipment provide significant support for the implementation of marine fishery development strategy, industrial structure adjustment and upgrading, and represent the world’s advanced productivity level of aquaculture, with significant economic, social and ecological benefits and broad application prospects.