Tool for assisting entrance of fish into water flowing through bypass channel, has flow obstruction element whose two ends are arranged facing away water bypass channel and at downstream of bypass channel

摘要

A transverse barrier (10) has a base at which the fish entrance assistance tool is placed. The assistance tool includes sill-like flow obstruction element (30) that is arranged obliquely to the water flow direction (11). One end (31) of flow obstruction element is arranged facing away the water bypass channel (20) while other end (32) is arranged at downstream of bypass channel.