| 1. | Having carried on the direction and in - situ observation research for the fish migratory behavior , swimming mechanics and ecology , etc ; using the light , sound , electricity , colour gas and various physical agents to improve the fish passage speed in the fishway 对鱼类的洄游习性、游泳力学及生态学等问题,进行了定向和原体观测研究,并用光、声、电、色、气等各种物理因素提高鱼道的过鱼效果。 |