After a survey of the Yangtze River Basin in 2017-18, the Chinese giant paddlefish has been declared extinct by science.
Article:Extinction of one of the world's largest freshwater fishes: Lessons for conserving the endangered Yangtze fauna - ScienceDirect
This article is about the turtle living in Hoan Kiem Lake in Hanoi:
Sacred turtle sparks city clean-up - asia - world | Stuff.co.nz
See also this other thread specifically about the pair kept at Suzhou Zoo in China:
Suzhou Zoo - Yangtze softshell turtle losing the battle