Law enforcement officers from the fishery and public security sectors patrol a porpoise conservation area on the Yangtze River in Anqing, east China's Anhui Province, March 1, 2019. (File photo: Xinhua)

WUHAN, Jan. 1 (Xinhua) -- A launch ceremony of the fishing ban in key waters of Yangtze River was held in Wuhan, capital of central China's Hubei Province on Thursday.

According to the central government's plan, a complete 10-year fishing ban is imposed in key waters of the Yangtze, China's longest river starting Friday.