sad!The Yangtze River Bai Yan was officially announced for extinction

The Yangtze River White River, known as the "King of Freshwater Fish in China", was officially announced by the World Nature Protection Alliance (IUCN).

The World Nature Conservation Alliance (IUCN) Beijing time on July 21, 2022 updated the red list of endangered species. The list shows that the Yangtze River -unique species of PSephurus Gladius has been extinct and the Aciverser Dabryanus is extinct. Globally, the Ociper Nudiventris Aral Sea Subpopulation) is extinct. The red list also improved the protection level of 7 other catfish.

The results of IUCN's global catfish re -assessment show that 26 existing catfish around the world are facing extinction threats. About 2/3 of the catfish population is extremely endangered. River and freshwater biological diversity are essential for humans and nature, but global freshwater biological diversity is continuously lost, and the river ecology is constantly degraded.

Arne Ludwig, chairman of the IUCN catfish expert group, said, "The result is shocking and sad, but it is expected. The evaluation shows that the catfish still cannot remove the" most threatened group in the world '' ' This title. "

Bai Ji crisis the show of the show

Bai Yan appeared in the Yangtze River last time in 2003

The three Asian catfish mentioned this time include the natural population of white ravioli, Yangtze River, and Siberia. The first two are representative aquatic species in the Yangtze River Basin. Bai Yan appeared in the Nanxi River section of the Yangtze River in 2003, while the Yangtze River (Da's) was evaluated as the wild extinction because it failed to find the juvenile fish except for the proliferation and release group.

There are more than 4,300 aquatic creatures in the Yangtze River Basin, including more than 400 fish, and more than 170 kinds of fish in the Yangtze River. kind. Among them, white tidelines are the scarce types of all whales in the world. In 2007, the white -fin dolphin was announced in functional extinction. However, on November 14, 2018, the "IUCN" (IUCN) of the World Nature Conservation Alliance was updated. It has not been confirmed that the White Dolphin Extinction has not yet been confirmed to maintain the "extremely dangerous" of the original rating.

On December 23, 2019, the international academic journal "Overall Environmental Science" published a research papers (Pre-PROOF) from experts from the Institute of Aquatic Products of the Yangtze River Aquatic Research Institute of China Aquarium: It is expected to be extinct from 2005 to 2010. Essence In January 2020, the World Nature Conservation Alliance (IUCN) responded that IUCN has not yet released and updated the news about the extinction of the Yangtze River.

The author of the above paper, chief scientist and researcher of the Yangtze River Aquatic Research Institute of the Chinese Academy of Fisheries Sciences, and the initiator of the Wuhan Yangtze River Chunghwa Protection Center, is also the only member of China in the IUCN catfish expert group. The extinction Baiyou dolphin compares: "It is true that catfish is the most threatened group in the world, but the extinction of white crickets should still not happen. The ecological habits of white and white dolphins are different. A habitat is mainly in the middle and lower reaches of the Yangtze River. This is not an accident. Other the aquatic creatures of the Yangtze River must not repeat the same mistakes. "

Changjiang 伟 长 长 长 长 长 长 长

The global rescue of freshwater biological diversity is imminent

In recent years, China has continuously increased the protection of aquatic biology in the Yangtze River Basin. The Ministry of Agriculture and Rural China has successively released the "China Capricorn Rescue Action Plan (2015-2030)", "Yangtze Relic Dolphin Rescue Action Plan (2016-2025)", "Yangtze River 鲟 (Da Shi) Rescue Action Plan (2018-2035)". In the plan, the status quo of the Chinese cricket is "decreased in spawning frequency, the number of tourism groups has continued to decrease, and the natural population has declined sharply." For the Yangtze River, the Yangtze River is "natural breeding, the basic peerless of wild population, and the urgent need of artificial groups."

Dangerous Wei said, "The Yangtze River 表示 and Chinese 鲟 should not have only one future. Their artificial reproduction has made breakthroughs and established a number of artificial groups, but the recovery of natural population is far away. Fortunately , 'Ten Years Ban Fishing' and the Yangtze River Protection Law have been implemented one after another. "

Zhou Fei, deputy director (project) of the World Natural Fund (WWF) Beijing Representative Office (project), said, "The result of this red list update reminds us to reverse the trend of loss of freshwater biodiversity by rescue protection. Sexual protection measures to solve long -term threats. We need the participation and support of more institutions and social forces to help the Yangtze River "downgrade early 'early, better protect the Chinese stream of Jianghai's tour, and create a better future of the Jianghai ecosystem."

◆ Source: Red Star News

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