Recorded reports are the following: in 1992, two specimens (1.2 kg weight, 47 cm TL; 1.3 kg weight, 50 cm TL) were found in the Chongqing reach (in Chen, 2007); in 2002, a female (body length 330 cm, weight 117 kg) captured in the section of Jiangsu Nanjing, Yangtze River in 2002 (attempts were made to save this individual, but it only survived in captivity for 30 days); Jan 24th, 2003, a female (body length 352 cm) was accidentally caught in Yibin, Sichuan Province China (upper stream of Yangtze River); between 2006-2008, none collected (Ref. 117880). From other literature: four specimens from Yichang City of Hubei Province, Chongming Island of Shanghai City, and Ningpo City of Zhejiang Province (Ref. 47439) and also recorded in Changjiang River and occasionally found in Qiantangjiang River (Ref. 45563).
Many spawning grounds have been destroyed by the Gezhouba Dam in the middle and lower reaches of the Yangtze River (= Changjiang River). Urgent action is required to save this species (Ref. 28581). Also Ref. 36732.
Status of threat: Endangered (Ref. 45563). Possibly extinct (Ref. 117880).
