The Wuchang bream (Megalobrama amblycephala) is a species of cyprinid fish native to the Yangtze basin, China, including Liangzi Lake. It is an important object of fish farming, and in 2012 its total production ranked 12th on the world list of most important fish species in aquaculture, with a total weight of 0.71 million tonnes and value of 1.16 billion US dollars.