Taking Dayuandu reservoir, a river course reservoir formed by construction of the Dayuandu pivotal project as example, and the effect focused on fish, to provide a basis for policymaker.

• 以湘江大源渡航运枢纽工程拟建成河道型水库大源渡水库为例,对鱼类的影响分析为重点,为工程的决策提供了依据。