1982, the relevant state departments set up a specialized institution, the Chinese sturgeon research institute, to carry out artificial breeding and release of Chinese sturgeon, so as to make up for the adverse impact of Gezhouba construction on the natural reproduction of Chinese sturgeon. The Yangtze River Fisheries Research Institute under the Ministry of Agriculture has also carried out artificial breeding and release of Chinese sturgeon for more than 30 years.
Relevant scientific research institutions and enterprises have preserved a number of ACIPENSER sinensis populations of different ages, including a certain number of mature individuals (8 years old), in the long-term practice of proliferation and release and individual rescue of accidental injuries.
Moreover, since 2009, the Chinese sturgeon research institute and the Yangtze River Fisheries Research Institute have made breakthroughs in all-artificial breeding technology of Chinese sturgeon, realizing the self-maintenance of the Chinese sturgeon population in the freshwater artificial environment, laying a material foundation for the expansion of the artificial population and the protection of the natural population.
Introduction of medium-term goals
By 2030, the natural population of ACIPENSER sinensis will be effectively restored, the habitat conditions will be effectively improved, the key habitats will be effectively protected, and the artificial population resources will be expanded and optimized to realize the self-maintenance of the artificial population and the effective supplement of the natural population.
1. Maintain the original scale of the artificial population of ACIPENSER sinensis and increase the number of elderly individuals, among which the number of individuals of ACIPENSER sinensis above 15 is not less than 5,000, and the number of individuals of the second generation of ACIPENSER sinensis over 8 years old is not less than 20,000.
2. Maintain the normal and efficient operation of breeding platforms and semi-natural wild domestication bases.
3. Continue to expand the scale of proliferation and release, and ensure that the number of Chinese sturgeons released each year is not less than 65,438+10,000, and the released individuals come from not less than 30 groups of parent fish.
4. The environment of natural or artificial spawning grounds has been improved, and the number of wild populations has gradually increased.
5. Establish a genetic resource bank of ACIPENSER sinensis with a certain scale to effectively preserve the reproductive stem cells and sperm of ACIPENSER sinensis.
For details, please refer to the Notice of the Ministry of Agriculture on Printing and Distributing the Action Plan for Chinese Sturgeon Rescue (20 15-2030).