Longitudinal pattern of resource utilization by aquatic consumers along a disturbed subtropical urban river: Estimating the relative contribution of resources with stable isotope a... oleh Sai Wang, Tuan‐Tuan Wang, Wen‐Tong Xia, Zhong‐Bing Chen, Simon D. Stewart, Feng‐Juan Yang, Gong Cheng, Xiao‐Di Wang, Ding‐Ying Wang, Song‐Guang Xie