Brush for pool fish pass

Presentation :

Many brushes for fish pass pool have been built during the last 20 years. They are equipped with indentations or slots linked with holes. The heights of slopes make them selective for many species; only fishes incline of their, with strong swimming capacities can use this equipment.
Specific brushes can be then fitted on indentations or holes in order to improve the transit conditions and reduce the selectivity. Their adapted configuration allow them to present diversified conditions of passage adapted to the various crossing behaviours. This equipment is adapted for eels, river lampreys, and small fish species…

Installation :

After the draining of the pass, plates are fixed with four plugs at the bottom of the indentation and on the vertical surface of the hole. Several brushes can be juxtaposed.