(TheFishSite) Tilapia is a worldwide fish of great commercial importance. In China, tilapia is an important species with annual production of more than 1.3 mmt, which accounted for about 45% of the total tilapia production in the world in 2008. Guangdong, Hainan and Guangxi Provinces ranked top three in annual production in China. However, with over two decades of rapid growth, tilapia aquaculture in China has been facing many challenges in the past years.