Workers of local fishery department release fry into the Chaohu Lake near Hefei, capital of east China's Anhui Province, March 19, 2013. Some 500,000 fry of various breeds were released into the Chaohu Lake Tuesday in a bid to increase the lake's fish stocks. Chaohu Lake, about 13,000 square kilometers in size, is one of China's five largest freshwater lakes. [Photo/Xinhua]