FIELD: construction; mechanics.
SUBSTANCE: fishway is implemented as benched or slope conveyor or channel with longitudinal slope sideways downstream water, containing transverse vertical separation walls dividing fishway for chambers with located in them by full width of fishway chambers swimming in holes of rectangular, square or round. By holes perimeter are located stream-forming bleeds angularly or parallel to holes axes outfitted by obstructing screens so that bleeds are inside of formed by screens outlet part of swimming in hole and are located parallel to screening wall axes of adjoined obstructing screen. Outlet holes of bleeds are located directly inside of swimming in holes between surfaces of laterals and transverse separation walls or inside of autonomic channels. Inside of swimming in holes and obstructing screens there are mounted light sources directed into internal space of swimming in holes and obstructive screens. Light sources are located into niches on walls by full perimeter of swimming in holes and obstructive screens. There are presented versions of light sources location relative to each other.
EFFECT: increasing of efficiency for fish attraction into swimming in holes.
5 cl, 7 dwg
