Abstract:The Tongling River Section, with many zigzag river channel and well developed sandbars, is one of the few river sections of the Yangtze River where the Baiji (\%Lipotes vexillifer\%) can be found usually, and Yangtze finless porpoise (\%Neophocaena phocaenoides asaeorientalis\%) concentrated with relatively high density. However, along with the increase and expansion of human activities, especially the construction of anti flood, main dams and bridges, the habitat of the Yangtze dolphins has been fragment...