SU412605A1 - - Google Patents

Description

The invention relates to fish passages that allow fish from the sea to the rivers to be spawned, bypassing dams.

Fish passages are known, including a fish tract with swimming pools for resting fish.

The purpose of the invention is to create favorable conditions for the passage of fish into the reservoir and its spawning inside the fish tract.

This is achieved by the fact that the fish passage on the side of the upper pool has a water intake tray with holes in the bottom with bottom pipes installed in them, having slots intersected by water quantity regulators, and a migration basin made of C-shaped parts with mutually opposite bottom slopes. The water quantity regulator is made in the form of a lifting cap connected by flexible pipes and floats. To ensure the movement of fish against the flow of water in the migration basin, there is a tray with a grate, a sump well and a pump installation at its outlet.

FIG. 1 shows a general view of the fish passage; in fig. 2 - section water intake; in fig. 3 - water quantity regulator, side view; in fig. 4 - fish track with spawning substrate, cross section; in fig. 5 - migration ring tract, top view; in fig. 6 is a device for creating a backflow of water.

The fish pass consists of a water intake 1, which represents a rectangular section of tray 2 with openings covered by sparrows 3. There are holes 4 in the bottom of the tray, to which pipes 5, installed at the bottom of the reservoir, are connected. In the pipes 5 there are holes 6, covered with movable covers 7 with stops 8. The covers 7 are connected by ropes 9 with floats 10. From

water intake 1 begins with fish spawning tract 11 with spawning substrate consisting of sand base 12 and rough hard surface 13. Fish tract 11 crosses a series of deep-water wintering reservoirs 14, which feed at the expense of local runoff, and fish recreation pools 15. A migration basin 16, made of C-shaped parts 17 with mutually opposing bottom slopes, was built in a conveniently relief section of the fisheries tract. In the section of the fish tract, adjacent to the migration path 16, there is a transverse tray 18, which is covered by a grill 19 on top, which is connected to the coast receiving well 20. From the well 20, the pump unit 21 located on the shore pumps the water to one of the parts 17 of the migration basin to create a countercurrent and, thereby, provides the movement of fish against the current in the migration

basin 16, thereby creating favorable conditions for spawning fish. To direct sea fish from the spawning rivers to the fish tract 11, electric fish inhibitors 22 are installed on the rivers near the mouth and above it.

The fish tract is continuously fed with water from the reservoir through the water intake 1.

In order to regulate the thermal condition of the fish guide tract, the lids of the lid 9 of the lid 7 are lifted up and, thus, the required number of the holes 6 is opened.

Subject invention

Claims (3)

1. A fish-boat, including a fish-carrying path with swimming pools for the rest of fish, characterized in that, in order to create blistering conditions for the passage of fish into the reservoir and its spawning inside the fish-carrying path, it has from the side of fiepxdeio a water intake tray with holes in the bottom with bottom pipes installed in them, having gaps blocked by water quantity regulators, and a migration basin made of C-shaped parts with mutual 0-opposite bottom slopes. 2. The switch according to claim 1, characterized in that the water quantity regulator is made in the form of a lifting cap connected by flexible rods with floats. 3. Pop-out. 1, so that in order to ensure the movement of fish against the flow of water in the migration basin, at its exit there is a tray with a grate, a sump and a pump unit. L / FIG. one