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What does the transition from pure wild to fully captive-bred mean for Sichuan-Shaanxi salmon? 丨Cover scientific expedition team

author:Meow meow meow thing

In the long history of the earth, there is a unique creature, the Sichuan-Shaanxi salmon, also known as the catfish, which survived the ice age and became the only representative of the salmonid family in the Qinghai-Tibet Plateau. However, with the change of the times, this cold-water fish, which once spread throughout the Sichuan and Shaanxi regions, has gradually lost its trace and has become an endangered species.

The existence of the salmon is not only related to the maintenance of biodiversity, but also carries rich scientific research and ecological value. In order to protect this precious biological resource, the scientific research team of the Fisheries Research Institute of the Sichuan Academy of Agricultural Sciences, after 15 years of unremitting efforts, finally succeeded in mastering the full artificial propagation technology, which brought hope for the recovery of the population of Sichuan-Shaanxi Zheluo salmon.

The high requirements of the living environment of the salmon make their reproduction full of challenges. As cold-water fish that grow in the mountains and valleys in the southwest of the continent, they have extremely strict requirements for water temperature, and the optimal water temperature for growth is 16~18 degrees Celsius, and the requirements for water quality are also extremely high. These harsh conditions undoubtedly increase the difficulty of artificial breeding.

What does the transition from pure wild to fully captive-bred mean for Sichuan-Shaanxi salmon? 丨Cover scientific expedition team

In the process of exploring the full artificial breeding of Sichuan-Shaanxi salmon, the research team not only needs to take care of the juveniles so that they can grow into qualified broodstock, but also needs to collect a large amount of experimental data to support their research. They take care of these juveniles like young children, so that they can grow into qualified broodstock, that is, breeding fish that can produce high-quality eggs and sperm.

The successful breeding of Sichuan-Shaanxi salmon is of great significance for the health and stability of the ecosystem. As organisms at the top of the food chain, their reproduction is a direct reflection of the diversity of aquatic ecosystems. Just as measuring the increase in the number of Siberian tigers in nature reserves means the health of the entire ecosystem, the success of the Sichuan-Shaanxi salmon is also an affirmation of the ecological balance of its living waters.

The study of C. sylvestris is of high scientific value in the fields of zoogeography, fish phylogeny and climate change. Their existence is an example of natural selection and adaptation to the environment, and their reproduction is a concrete action of human beings to respect nature and protect biodiversity.

What does the transition from pure wild to fully captive-bred mean for Sichuan-Shaanxi salmon? 丨Cover scientific expedition team

The efforts of the scientific research team have laid the foundation for the recovery of the wild population of the Sichuan-Shaanxi salmon, and also provided valuable experience for the conservation of other rare and endangered species. This achievement is not only a milestone in the field of biology, but also a vivid example of the harmonious coexistence and development of human beings and nature.

In the days to come, we look forward to the severance of the salmon under the careful care of the scientific research team, so that this rare cold-water fish can once again soar freely in the waters of the Sichuan-Shaanxi region. This is not only the protection of Sichuan-Shaanxi salmon, but also the care of our common home.

What does the transition from pure wild to fully captive-bred mean for Sichuan-Shaanxi salmon? 丨Cover scientific expedition team