| 摘要 |
PURPOSE: A fishway block and a downstream shoal type fishway therewith are provided to enable fishes to easily move from an upstream to a downstream. CONSTITUTION: A fishway block(100) comprises a block body(110), an elevated part(120), and side walls(140). The block body touches with the bottom surface of a river. The elevated part is protruded from the top of the block body and stops the flow of the river. The side walls are in contact with the block body and the side surfaces of the elevated part. |
