A worker shows on cellphone the automatic nurture system at an aquaculture company in Zhao'an, southeast China's Fujian Province, June 6, 2017. The company in Zhao'an County introduces a water circulation nurture system recently, which can realize indoor aquaculture and zero emission by circulation of water resource. The system can also be controlled automatically, with five people managing an area of 10,000 square meters. (Xinhua/Song Weiwei)
