Sad!"King of Freshwater Fish" Bai Yan was officially announced for extinction

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.

Video source: wwf World Nature Foundation

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. "

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. This result highlights the huge challenges facing the protection of biological diversity of the Yangtze River.

There are more than 4,300 kinds of aquatic creatures in the Yangtze River Basin, including more than 400 fish, and more than 170 kinds of fish in the Yangtze River. 12 species.

The only member of the IUCN catfish expert group, the Researcher of the Yangtze River Institute of the Chinese Academy of Fisheries Sciences, and the initiator of the Wuhan Yangtze River Chinatown Protection Center in danger to compare the Baiyan and Baiyou dolphin: "It is true that catfish is the most threatened in the world. The category group, but the extinction of white 绝 is still what should not happen. The ecological habits of white and white dolphins are different. One breeding one in the upper reaches of the Yangtze River and one habitat are mainly in the middle and lower reaches of the Yangtze River, but the destiny of their extinction is similar to that of the period. This is not an accidental event, but also a profound lesson. Other Yangtze River aquatic creatures must not repeat the same mistakes. "

According to previous reports, Bai Yan is known as "tiger in the water" and "King of Chinese Freshwater Fish", which is mainly distributed in the Yangtze River Water system. Like Chinese 鲟, it has already existed 150 million years ago, and it is one of the very few ancient fish survived by the Middle School Baiji.

"The extinction of Bai Yan and the wild extinction of the Yangtze River sounded the alarm for us." Zhou Fei, deputy director (project) of the Beijing Representative Office of the WWF World Nature Foundation, said, "The result of this red list reminds us that we need to rescue sexuality Protecting to reverse the trend of loss of freshwater biological diversity, it is also necessary to plan and implement systematic protection measures to solve long -term threats. It is not enough to rely on manual measures and a single departments. , Help the Yangtze River "downgrade" early, better protect the Chinese 鲟 of Jianghai's tour, and create a better future of the Jianghai ecosystem. "

Source: China News Network, CCTV.com

Editor in charge: Yang Yang

Supervisor: Mu so strong

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