Old Tang of the Linjiang Golden Shark Cold-Water Fish Farming Cooperative was awakened by the torrential rain, and he put on his half sleeve and rushed to the inlet of the fish farm. At this time, it is not possible to let the branches block the spring, causing the spring water to stop flowing, nor can the flash flood flood the fish pond.
With the help of expert Xiao Zhiguo, Lao Tang's cooperative now has more than 10 precious cold-water fish species, and is gradually moving towards scale and modernization.
Scientific research first Break down technical barriers to industrialization
Cold-water fish, living in mountainous water waters with a water temperature below 20 °C, clear water quality and high dissolved oxygen content, are green and pollution-free fish. Because of its tender meat, delicious taste and high nutritional value, it is known as "treasure in the water". At present, the cultivation of cold-water fish in our province has gradually developed from the single product culture of rainbow trout in the past to rainbow trout, fine scale fish, Zheluo salmon, flower lamb red dot salmon, American red spot salmon, Yalu River fennel, Masu cannabis salmon and other multi-species breeding, and in recent years, it has introduced high-grade cold-water fish triploid rainbow trout (salmon), and gradually developed in the direction of industrial operation and intensive aquaculture.
The clear spring water flows continuously through underground pipes into the tank of Du Father fish seedlings. In September, it is an important "opening" period for the new batch of Du Father fish seedlings, and choosing suitable "open mouth" food is extremely important for the artificial breeding and large-scale breeding of Du Father fish. Xiao Zhiguo chose the "baby shrimp" that had just hatched for them.
It is a typical mountain stream cold-water demersal fish that inhabits the upper and middle reaches of valley rivers with low water temperatures, high dissolved oxygen content and gravel or pebble substrates and their tributaries. In recent years, due to the shrinking living environment, reproduction has been seriously threatened, and the population has decreased sharply. In 2015, Xiao Zhiguo, an expert at the Jilin Academy of Fishery Sciences, had just finished his last scientific research project and rushed to the wrong grass village. Since then, at the foot of the mountain, I have lived for 6 years. At present, the research on the breeding and large-scale breeding of Dufa fish in our province is at the forefront of the country.
Not only Du Father Fish, our province has taken scientific research as the guide and independent innovation in recent years, which has promoted the development of the cold-water fish industry. In 2003, the Jilin Academy of Fishery Sciences carried out the "Research on the Breeding Technology of Fine-scaled Fish Fry", which explored an effective way for the large-scale breeding of indigenous cold-water fish such as fine-scaled fish. Subsequent "Research on the Biology and Practical Breeding Technology of American Red-spotted Salmon" and "Research on Key Technologies for Increasing The Breeding of Famous Indigenous Fish Species - Research on Artificial Breeding Technology of Anise in the Yalu River" have provided technical demonstrations for the promotion of cold-water fish farming. Since 2012, under the deployment of the provincial fishery administrative department, the Jilin Academy of Fishery Sciences, the Provincial Aquatic Technology Promotion Station, Jilin Agricultural University and aquatic technology promotion agencies at all levels have carried out key technologies for breeding and breeding, as well as technical research such as fish feed, drug use, disease prevention and control, and wintering management, around a number of famous cold-water fish species, and made a number of technological breakthroughs and research results, formulated relevant local standards, and further enriched and improved the development system of cold-water fish industry in our province.
The continuous and in-depth development of cold-water fish scientific research projects has laid a technical foundation for the development of cold-water fish aquaculture in our province from traditional fisheries to modern fisheries, and promoted the rapid development of cold-water fish farming in our province from all aspects such as scale, technology and output.
Multi-party efforts are made to move toward scale and modernization
In recent years, with the transformation and upgrading of the fishery transformation mode, in order to give full play to the regional advantages of characteristic aquaculture, the provincial fishery administrative department has launched the cold-water fish industry development plan, which has built the cold-water fish industry into a unique development business card of Jilin Province, adjusted the layout of the "three regions" for the development of the province's fishery, clearly listed the eastern mountainous areas as the key areas of cold-water fish breeding, and put forward the "321" fishery plan, which played a positive role in optimizing the province's fishery production structure and promoting the adjustment of the agricultural industry structure.
Lao Tang's cooperatives took advantage of the situation, on the one hand, with the help of the scientific research strength of the Provincial Fisheries Research Institute, on the other hand, with the help of the government's good policies, to further expand the scale. The standardization of flowing ponds, the upgrading of breeding facilities, the construction of smart fisheries and the introduction and breeding of excellent seedlings, the development of famous and excellent indigenous species... Over the past few years, from the original only a few varieties to have more than a dozen precious varieties, from the original tens of thousands of fish, to hundreds of thousands of fish, Lao Tang's cooperative has become more and more famous, not only attracting some cold-water fish lovers in the province, farmers in some areas of the three eastern provinces also often come here to find more precious fry or eye eggs.
It is understood that in recent years, our province has successively established more than 10 large-scale cold-water fish seed source bases and fry bases, 1 national aquatic product seed farm, and 5 cold-water fish provincial-level fine seed farms, and the radiation driving effect of the base has been significantly enhanced. At present, there are more than 10 large-scale cold-water fish breeding enterprises in the province.
Develop regional characteristics The cold-water fish industry is moving towards branding
Our province is located in the north of 30 degrees north latitude, the eastern Changbai Mountain area is the birthplace of the Songhua River, Tumen River, Yalu River and other rivers, the area of mountain streams staggered, cold water resources abundant, abundant water, the province's important cold water rivers and streams such as Tumen River, Yalu River, Mudanjiang, Suifen River, etc. There are 55, the flow per second is greater than 0.1 cubic meters of springs 9, Longmen Lake, Songshan Reservoir and other cold water lakes and reservoirs 6, an area of more than 1 million mu, accounting for about 1/6 of the total waters - 1/8, has the natural advantage of producing green aquatic products.
In recent years, with the progress of scientific research and the support of the government, this unique advantage has developed into an industrial advantage and a brand advantage. As the main production area of rare cold-water fish in China, the unique water ecological environment of Changbai Mountainous Area has created favorable conditions for the survival and reproduction of cold-water fish, and there are more than 30 kinds of cold-water fish distributed in the area. These fish are famous for their preciousness and specialties, and occupy an important position in China's cold-water fish resources, especially some fish in the Yalu River and Tumen River, which are rare in the country and even the world, and have high economic development value and scientific research value. In addition, the construction of indigenous cold-water fish reserves and germplasm resources conservation areas has been further strengthened. In 1996, in Changbai County, the "Changbai Cold-water Fish Provincial Nature Reserve" was established in the Fifteen Daogou River and the Sixteen Daogou River in Changbai County, which was mainly based on the protection of cold-water fish, and in 2003, it was promoted to the "Jilin Yalu River Upper Reaches National Nature Reserve", which is the only national-level conservation area in The country to protect the habitat and reproduction of cold-water fish; Baishan, Yanbian and other places have successively established a number of aquatic germplasm resources conservation areas such as "Yalu River anise", "Masu cannabis salmon" and "Northeast lamprey". The protection and development and utilization of germplasm resources of cold-water fish in our province are on the right track, the protection awareness and legal concept of the surrounding masses have been significantly enhanced, and the fishery order has improved significantly, laying a solid material foundation for the development and branding of cold-water fish breeding industry in our province. (Source: Jilin Daily)