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First successful in-captivity breeding of the Yangtze finless porpoise
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A Yangtze finless porpoise was born on July 5 at the CAS Institute of Hydrobiology (IHB) in Wuhan, capital of central China's Hubei Province. This is the world's first successful breeding of such an animal in an artificial environment. Experts say the feat will contribute to the ex situ conservation of the endangered species.
The finless porpoise (Neophocaena phocaenoides) is one of the smallest cetaceans in the world. They have three distinct varieties, and the Yangtze finless porpoise (N. p. asiaeorientalis) is one of them. As the only freshwater subspecies, they can only be found in the middle and lower reaches of the Yangtze River and the two connected Dongting and Poyang Lakes. They appear to be morphologically, behaviorally, and genetically different from the marine finless porpoises that occur in Chinese coastal waters and elsewhere in eastern and southern Asia. Due to deterioration of the habitat quality, the finless porpoise population is on the verge of extinction. The existing population is estimated at 1,000 in total number and now under the secondrate protection in China.
In order to study the endangered species, IHB researchers started breeding the porpoise in captivity about 10 years ago. At present there are four adult individuals at IHB, two males and two females. The new born is a boy with a body length of 70 cm. Its parents mated naturally about 11 months ago. Because its reproductive behaviors are poorly known, the success provides important information for making guidelines of management and conservation for this protected population.
| FROM:http://english.cas.cn |
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