Goodbye, "Freshwater Fish King"!The World Nature Conservation Alliance updates the red list, the white -rayburies of the Yangtze River are extinct

On July 21, according to the red list updated by the World Nature Protection Alliance (IUCN), 26 existing catfish worldwide facing extinction threats.

The list shows that the penetrated species of the Yangtze River have been extinct, the Yangtze River is extinct, and the naked abdomen is extinct. The red list also improved the protection level of 7 other catfish.

Bai Yan is one of the unique flagship species of the Yangtze River. Because of its kissing minister, it is like a nose, commonly known as elephant fish. Sichuan fishermen have the saying that "jackets of salad tens of thousands of pounds" describe the huge body shape. Coupled with the fierce temperament of whiteness, it is located at the top of the biological chain and is called "the King of Freshwater Fish in China".

The results of IUCN global catfish re -evaluation show that 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 in the world. 'This title. "

On January 27, 2003, experts were treating a white puppet on the bank of the Yangtze River near the main urban area of ​​Yibin, Sichuan. This white puppet is the largest of the 45 Baiyan Observation Records in China since 1982 and the last one of the records.

The three -year -old Asian catfish include Bai Yan, Yangtze River Board, and Siberian Natural Form. The first two are representative aquatic species of the Chinese Mother River Yangtze River Basin: White 鲟 last appeared in Yibin, Yangtze River in 2003 The Nanxi River section, and 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.

At the beginning of 2020, the only member of the IUCN catfish expert group in China, a researcher at the Yangtze River Institute of the Chinese Academy of Fisheries Sciences, and the initiator of the Wuhan Yangtze River Chinatown Protection Center, etc. "Lessons to protect endangered animals" attracted widespread attention. The paper mentioned: "It is estimated that from 2005 to 2010, the Yangtze River Baiji has been extinct."

Cao Wenxuan, a well -known fish ecologist, academician of the Chinese Academy of Sciences, and researcher at the Institute of Aquatic Biology of the Chinese Academy of Sciences, said: "The white puppet in the Yangtze River has decreased sharply in the Yangtze River, which is almost the same as the decline in the White Dafou." However, he believes, "Strictly speaking, A species can only be sentenced to death for 50 years. "

In recent years, China has increased the protection of aquatic biology in the Yangtze River Basin. The Ministry of Agriculture and Rural Ministry of Agriculture and Rural has successively released the "China Capricorn Rescue Action Plan (2015-2030)", "The Yangtze River Dolphin Rescue Action Plan (2016-2025)" and "Yangtze River (Da Shi) Rescue Action Plan (2018-2035)" Essence 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. "

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Edit: Qian Zhongjun

Editor in charge: Zhao Zhengnan

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Comprehensive: Chinanews.com, Xinhua News Agency, WWF World Nature Foundation

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