The wild Chinese sturgeon, which is 2 meters long and weighs more than 50 kilograms, appeared in Ningbo and is a national first-class protected animal
Release time：2023-02-07 05:41:50 source：korpimaankyynel.com author：Ocean
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The wild Chinese sturgeon, which is 2 meters long and weighs more than 50 kilograms, appeared in Ningbo and is a national first-class protected animal
In Ningbo, Zhejiang, a fisherman accidentally caught a wild Chinese sturgeon. Mr. Shen, a fisherman, said that when he went out to fish at night, he found that the net was heavy when he collected the net the next morning, and found that there was a huge Chinese sturgeon in the net. sturgeon, so he quickly took the Chinese sturgeon out of the fishing net and checked it to see if the Chinese sturgeon was injured. Then he took photos and videos and reported them to the fishery administrators and released the Chinese sturgeon as soon as possible. Mr. Shen said that this is the largest Chinese sturgeon he has ever seen. It is 2 meters long and weighs more than 50 kilograms. He has never seen such a large Chinese sturgeon before. This is not the first time that Mr. Shen has accidentally caught a Chinese sturgeon. He has been in the fishing industry for more than 30 years, and every time he accidentally catches a Chinese sturgeon, he will report it as soon as possible, and then check it. This year, he has accidentally caught and released more than 20 Chinese sturgeons. At about 11:00 on September 7, 2022, someone found a Chinese sturgeon in the waters near Laolu Port, Chongming, Shanghai. Unfortunately, the Chinese sturgeon was dead when it was found, and it was already rotting and smelling. This shows that This Chinese sturgeon has been dead for some time. After measurement, it was found that the dead Chinese sturgeon was about 0.94 meters long, weighed about 3 kilograms, and was about 2-3 years old. The cause of death is unknown.
Will the Chinese sturgeon go extinct?
On July 21, 2022, the International Union for Conservation of Nature (IUCN) released the Global Endangered The updated report on the species red list announced that the white sturgeon is extinct and the Yangtze sturgeon is extinct in the wild. In addition, the 26 existing species of sturgeon in the world are also facing the threat of extinction, and about two-thirds of the sturgeon population are critically endangered , sturgeon has been called "the most threatened taxa in the world". Sturgeons have been living on Earth for a long time, and their fossils can be traced back to the Mesozoic Triassic, once living in the same era as dinosaurs. Although dinosaurs disappeared in the mass extinction 65 million years ago, these sturgeons have survived to this day and are real "living fossils" in the water. Although they have survived for quite a long time, their current status is not optimistic. The white sturgeon has been declared extinct, and the Yangtze sturgeon has also been declared extinct in the wild. So what will happen to the Chinese sturgeon in the future? Chinese sturgeon is the largest and longest-lived fish in the Yangtze River Basin. The largest Chinese sturgeon can grow to about 5 meters and is known as the "King of Yangtze River Fish". Although it has survived the mass extinction event 65 million years ago, the current situation of the Chinese sturgeon is not very good. It is one of the 92 endangered fish species in the "Red Book of Endangered Animals in China and Fish" and is a first-class key protected wild animal in my country. . From May to October 2014, the fish resource monitoring vessel of the East China Sea Fisheries Research Institute conducted continuous monitoring of nearly 10,000 square kilometers of water, and did not find a single juvenile Chinese sturgeon. During the seven years from 2013 to 2019, no natural spawning behavior of Chinese sturgeon was found for five years, and no Chinese sturgeon juveniles hatched during these years were found. In order to save the Chinese sturgeon, we have released 7 million Chinese sturgeon in the past 30 years, but the recovery of these rare and endemic species is very difficult, and the wild Chinese sturgeon still cannot resume natural reproduction. Experts said that at present, the Yangtze River Rare Fish Conservation Center and the supporting Chinese sturgeon sperm and tissue cell storage banks can basically ensure that the Chinese sturgeon will not embark on the road to extinction, but if they want to completely save the Chinese sturgeon and let it resume natural reproduction, The most urgent task is to rebuild the natural habitat suitable for Chinese sturgeon.Will a mass extinction happen?
From the perspective of the history of life on the earth, species extinction occurs from time to time. After all, the environment of the earth is constantly changing, and these species also need to adapt to the new environment through evolution and other methods. If it does not adapt well to the environment, it may be eliminated. In the past few billion years, the earth has experienced 5 mass extinction events. Will the sixth mass extinction event occur in the future? No one can tell what will happen in the future, but many species on the earth are actually not very optimistic. The latest Red List released by the International Union for Conservation of Nature shows that 38,543 species are now at risk of extinction, accounting for about 28% of all assessed species, that is, nearly 30% of the species are at risk of extinction. Of course, different species face different risks of extinction, and some may be critically endangered. As the species at the top of the food chain on earth, humans are not at risk of extinction for the time being, but other species are on the verge of extinction, and we still need to pay attention. Countless kinds of creatures, including us humans, are part of the earth's ecosystem and food chain. The disappearance of any species may have a certain impact on the ecosystem and food chain. If a mass extinction occurs, the ecosystem and food chain may become extinct. It will collapse and affect all species, including us humans. Therefore, protecting these wild animals is actually protecting us humans.- Last：Never-before-seen colorful hybrid bird spotted in Pennsylvania
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