The Experimental Study on Development of Airlift Fish Way

Abstract

Fish ways applied to hi-dams has not been utilized generally in Japan due to their facilities. We have developed a new type fish way, called an airlift fish way, and proved its possibility by using modeled experiments. The airlift fish way has a tube, which connects higher pool with a lower pool. Fishes can be carried to a higher pool through the tube. Compressed air produces airlift water flow in the tube, which send out fishes from lower part of the tube to the higher pool. Fundamental theory of the airlift fish way and outline of the experiment are told in this paper.