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Following surveys in the Yangtze River during the 1980s, the baiji was claimed to be the first dolphin species in history driven to extinction by humans. [6] A Conservation Action Plan for Cetaceans of the Yangtze River was approved by the Chinese Government in 2001. [ 6 ]
The Yangtze Freshwater Dolphin Expedition 2006 (Chinese: 长江淡水豚类考察) was a six-week search expedition undertaken in November and December 2006 in Central China in an attempt to locate continued proof of the existence of the endangered baiji Yangtze dolphin (Chinese river dolphin).
The Yangtze flows through a wide array of ecosystems and is habitat to several endemic and threatened species, including the Chinese alligator, the narrow-ridged finless porpoise, and also was the home of the now extinct Yangtze river dolphin (or baiji) and Chinese paddlefish, as well as the Yangtze sturgeon, which is extinct in the wild.
Lipotidae is a family of river dolphins containing the possibly extinct baiji of China and the fossil genus Parapontoporia from the Late Miocene and Pliocene of the Pacific coast of North America. [ 1 ] [ 2 ] The genus Prolipotes , which is based on a mandible fragment from Neogene coastal deposits in Guangxi, China, [ 3 ] has been classified ...
China’s Yangtze river dolphin (Lipotes vexillifer) represents a third genus, but the species hasn’t been seen in the wild in 40 years and may be extinct, according to the International Union ...
The Yangtze finless porpoise (Neophocaena asiaeorientalis) is a species of toothed whale in the family Phocoenidae, the porpoise family.It is endemic to the Yangtze River in China, making it the country's only known freshwater cetacean following the possible extinction of the baiji (Lipotes vexillifer), a freshwater dolphin also native to the Yangtze. [3]
Genome sequences done in 2013 revealed that the Yangtze river dolphin, or "baiji" (Lipotes vexillifer), lacks single nucleotide polymorphisms in their genome. After reconstructing the history of the baiji genome for this dolphin species, researchers found that the major decrease in genetic diversity occurred most likely due to a bottleneck ...
The Tian-e-Zhou Oxbow Nature Reserve is an area of wetland in the Yangtze basin near Shishou, Hubei province, People's Republic of China.Inside the reserve is the Tian'e-Zhou lake which was an intended sanctuary for the baiji (Yangtze river dolphin) and is currently holding 28 finless porpoises.