MUNICIPAL RIVER CORRESPONDING TYPE FISHPASS

摘要

PROBLEM TO BE SOLVED: To allow fishes to go upstream via the top part of a door body of a movable weir. ;SOLUTION: One end of a rubber fishpass body 1 formed in approximately U-shaped cross section is connected to the top part of a movable weir door body 3. The fishpass body is inclined down toward the lower reaches from a movable weir, and its end part is fastened to a river bed.;COPYRIGHT: (C)2003,JPO