A Chinese sturgeon is released to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

A Chinese sturgeon is seen at the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons are released to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Photo by Zheng Jiayu/Xinhua)

A Chinese sturgeon is seen before being released to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Staff members prepare to release Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons to be released to the Yangtze River are seen in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

A staff member checks the Chinese sturgeons before releasing them to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Staff members implant sonar emitters in Chinese sturgeons in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons are released to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Photo by Huang Shanjun/Xinhua)

Staff members implant sonar emitters in Chinese sturgeons in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons to be released to the Yangtze River are seen in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons to be released to the Yangtze River are seen in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Xinhua/Wu Zhizun)

Chinese sturgeons are released to the Yangtze River in Yichang, central China's Hubei Province, March 28, 2024. More than 200,000 second filial generation Chinese sturgeons were released into the Yangtze River on Thursday to increase wild stocks of the rare species. (Photo by Zheng Jiayu/Xinhua)