Search for Chinese paddlefish (Psephurus gladius) in the upper Yangtze River during 2009-2013 including reevaluation of data from 2006 to 2008Hui Zhang, Helge Balk, Chengyou Wang, Jinming Wu, Hao Du, Li Shen, Zhigang Liu and Qiwei WeiAquat. Living Resour., 29 1 (2016) 101DOI: https://doi.org/10.1051/alr/2016008