Crew of a fishery administration ship attend a ceremony before leaving the Xingang Port of Haikou, capital of south China's Hainan Province, March 26, 2013, to conduct fishery patrol missions in waters off the Xisha Islands and Huangyan Islands in the South China Sea. (Xinhua/Guo Cheng)

A fishery administration ship leaves the Xingang Port of Haikou, capital of south China's Hainan Province, March 26, 2013, to conduct fishery patrol missions in waters off the Xisha Islands and Huangyan Islands in the South China Sea. (Xinhua/Guo Cheng)

A fishery administration ship leaves the Xingang Port of Haikou, capital of south China's Hainan Province, March 26, 2013, to conduct fishery patrol missions in waters off the Xisha Islands and Huangyan Islands in the South China Sea. (Xinhua/Guo Cheng)