The Yangtze River in the "Wild Extinction" appeared?Expert: It is an artificial breeding non -wild individual

The Yangtze River Daily Da Wuhan Client September 8th (Reporter Zhang Weina) On July 21 this year, the World Nature Conservation Alliance (IUCN) released the global endangered red catalog update report shows that the Yangtze River is extinct. At about 6 pm on September 6, a Yangtze River was found in the Red Beach of Luohuozhou, Tuanfeng County, Hubei Province.

The "Wild Extinction" Yangtze River River Reappearance? In response to the concerns of readers and netizens, researchers of the Yangtze River Institute of the Chinese Academy of Aquatic Sciences told the Yangtze River Daily on the evening of the 8th that "this is not a new thing." Although the Yangtze River has been announced in the field Yangtze River. In recent years, relying on proliferation and release activities, the artificial breeding Yangtze River has been living in the Yangtze River, and the figure of the Yangtze River will appear in the wild from time to time.

Dangerous said that the end of the Yangtze River in Hubei Tuanfeng was unable to judge whether it was a wild individual or an artificial discharge individual, but the wild Yangtze River in the middle of the Yangtze River has been extinct for more than 20 years. "From 2007 to 2022, a total of 865,800 artificial breeding of the Yangtze River in the Yangtze River. In recent years, the artificial breeding of the Yangtze River in the upper reaches of the Yangtze River is about 100,000." The discovered Yangtze River is also artificially breeding, not wild individuals.

On February 25, 2022, the staff of the rare fish domestication base in the Three Gorges Reservoir area were looking at the growth of the Yangtze River. Xinhua News Agency reporter Tang Yi

The reporter inquired about public reports that on July 22 this year, at the "Chaotianmen to Fuling River section of the channel rectification project ecological compensation -proliferation and release" activities, the upper reaches of the Yangtze River in the Yangtze River was 220,000 tail; June this year On the 28th, on the Guangyang Island on the South Bank District of Chongqing, a total of 5,000 fish containing the Yangtze River sturgeon were released.

During the interview, the danger emphasized that although the technology of artificial breeding of the Yangtze River has been mastered, the situation of the Yangtze River is still not optimistic. "At present, we can only say that artificial breeding of the Yangtze River has achieved success, but the natural reproduction system of the Yangtze River has not been rebuilt. Only after the natural breeding population has been rebuilt, the artificial breeding Yangtze River will achieve a phased victory."

According to the danger, after the return of artificially cultivated Yangtze River, its survival risk still exists, including being caught or fishing. At the same time, the environment and food of the habitat will also affect the breeding of the Yangtze River. "From the current point of view, the Yangtze River has not yet established a stable field population in the wild."

The Yangtze River is also known as Da Shi, and its population is basically maintained by manual release. Affected by human activities, the scale of natural population resources in the Yangtze River in the late 20th century has narrowed sharply. By 2000, natural breeding activities stopped, and natural population could not be maintained by themselves, facing the risk of extinction in the wild. In 2010, IUCN upgraded it to extremely critical protection species.

On January 21, 2021, Yibin (Sichuan) was released into the Jinsha River. Xinhua News Agency reporter Yang Di

Unlike the extinct Bai Yan, the artificial reproduction research of the Yangtze River has begun in the 1970s. In 1976, the Chongqing Institute of Fisheries Research Institute and other units successfully nourished the Yangtze River in the upper reaches of the Yangtze River. In 2018, the Yangtze River Aquatic Research Institute and Yibin Rare Aquatic Animal Research Institute of the Chinese Academy of Aquatic Sciences realized the second -generation artificial reproduction of the Da Shi Duzi. In the same year, the Ministry of Agriculture and Rural Affairs issued the "Yangtze River (Da Shi) Rescue Action Plan (2018-2035)" to guide the development of the resource recovery of the Yangtze River and the reconstruction of natural groups. The large -scale Yangtze River's artificial reproduction and proliferation release is considered to be the main means to restore the number of wild resources and realize the reconstruction of natural population.

Dangerous Wei said that the artificial reproduction of the Yangtze River has achieved results. With the protection of the Yangtze River and the continuous improvement of the ecological environment of the Yangtze River, the Yangtze River is likely to return to the Yangtze River and home.

【Edit: Ding】

For more exciting content, please download the "Da Wuhan" client in the major application markets.

- END -