The existing problem and basic countermeasure in the industrialization development of deep-water net cage culture in China

Deep-water net cage culture started relatively late in China. The first set deep-water net cage was introduced from foreign by Hainan province in 1998. After the deep-water net cage culture, coastal provinces and cities took a great upsurge in deepwater net cage industrialization manufacture for its high benefit and well performance. The first set independent intellectual patent HDPE circular double-float over and under type deep-water anti-storm net cage was developed in 2001. Its fish yield reached 14 kg per m3 water. According to inadequacy statistic, there were over 2 300 units deep-water net cages, 299 m3 culture water body, 49 140 tons theoretic yield in China by the end of 2004. With the rapid development of deep-water net cage, the problem appeared gradually. The investment of the deep-water net cage culture system was big for the first time. The net cage industry didn't form a complete set perfectly. Such as auxiliary facility of deep-water net cage, culture technology and main culture breed, culture overall arrangement and culture capacity, feed and disease prevention and cure, product processing and circulation, and so on,restricted the development of deep-water net cage directly and induced the high vacancy rate of deep-water net cage culture facility which was up to more than 1/3. How to settle the existing problem of industrialization development of deep-water net cage? Implement of the high technology integration of deep-water net cage, accomplishment of the culture industry chain link, establishment of the complete newly culture mode, linkage of the policy for fishery industry structure rectify are the important research items of the deep-water net cage industry.