RU102460U1 - DEVICE FOR FISHING AND WINTER FISH CONTENT - Google Patents

Abstract

 1. A device for fishing and winter keeping fish in overland lakes, consisting of a satellite pond connected to the lake by a water intake channel and a spillway channel, an aerator-stream former and fishing gears, characterized in that the spillway channel is equipped with a fence made of waterproof material that covers the water column from the bottom to the surface, providing a change in the direction of movement of the flow towards the intake channel and the intense saturation of water with oxygen by repeated reciprocating motion one about the same amount of water from the aerator in the pond-flow-companion of his lake and the flow-to-aerator. ! 2. The device according to claim 1, characterized in that the waterproof material is made in the form of a plastic film.

Description

The invention relates to commercial fish farming and can be used for fishing and winter keeping fish in overland lakes using a pond-satellite. It can be used for fishing and winter keeping fish in overland lakes with the help of a bypass channel.

A device for fishing and winter keeping fish in overland lakes, consisting of an oval open-shaped flow reflector that changes the direction of flow movement to the opposite and intense oxygen saturation of the water by repeatedly reciprocating movement of the same volume of water from the aerator - flow former to the flow reflector and vice versa (1) (RF patent 2236125, publ. September 20, 2004, Bull. No. 26).

The stream of oxygenated water of the aerator - stream former in a known device, having encountered a flow reflector on its way, slows down the flow rate and changes its movement to the opposite. As a result of this, the distribution area of oxygenated water over the water area of the reservoir and the amount of water involved in the circuit decreases, and ultimately, the oxygen demand for creating a zone with a favorable oxygen regime for the fish and, i.e. power of the used aerators - stream-forming agents. Currently, this device is successfully used on many lakes in the south of the Tyumen region and Western Siberia as a whole. A disadvantage of the known device is that river fish (peled, chir, etc.) do not make an orderly movement in the reflected stream. Therefore, it is possible to effectively fish using this device with nets or with net seine. However, net fishing is associated with laborious pulling out of fish in the cold season, and for non-aquatic fishing a team of fishermen consisting of 10-12 fishermen and a large number of fishing equipment - ice drills, motor winch, etc. are required.

A device for fishing and winter keeping fish in overland lakes, consisting of a bypass channel built on the lake, an aerator - stream former and fishing gear (2) (Slinkin N.P. New methods of intensification of lake fishing and fish farming. - Tyumen, 2009. - 151 p.).

However, the flow of oxygen-saturated water of the spillway, directed into the unlimited space of the reservoir, is distributed over the water area over an area that is several times greater than the optimal area that is necessary for winter keeping of fish. Therefore, to create a zone with a favorable oxygen regime for the fish, a large amount of oxygen is required, which is not used efficiently. In addition, oxygenated water in the known device is intensively mixed with the water of the lake during the entire overseas period, having a low oxygen content during the onset of the lake, which further increases the demand for oxygen, i.e. electricity for aeration of water. Another drawback. The reliability of preserving fish using a bypass channel is insufficient, because oxygenated water in the area of the lake adjacent to the bypass channel during the whole winter period along the entire perimeter comes into contact with the lake water, which has a low oxygen content and is intensively mixed with it.

A device for fishing and winter keeping fish in overland lakes (adopted for the prototype), consisting of a satellite-reservoir connected to the lake by water intake and spillway channels, an aerator - stream former and fishing gear (3) (RF patent 2139655, publ. 20.10.1999 Bull. No. 29). It has been introduced and successfully used on the lakes Tangachi, Dubrovnoye, Okunevo, Lugovoye, Baynaush and others in the Tyumen, Omsk and Chelyabinsk regions.

The advantage of this device is that when a pond in a lake sets in, a satellite is isolated (disconnected) from the lake, mixing of oxygenated water in the satellite pond with lake water having a low oxygen content is completely stopped and oxygen dissolved in the water is consumed only for consumption fish, and it is small in winter at low temperature. Significantly increases the reliability of preserving fish from freezing, economically consumes electricity.

However, the water flow of the spillway in this device is also directed into the unlimited space of the reservoir. Therefore, to create a zone with a high oxygen content in the water area of the lake near the satellite pond, when fish are attracted from the lake to the aeration zone adjacent to the satellite pond, a large amount of electricity is also required.

The technical result from the use of the invention is to save energy, expand the scope and increase the efficiency of fish farming.

This is achieved by the fact that in the device for fishing and winter keeping fish in overland lakes, consisting of a pond - a satellite connected to the lake by a water intake and a spillway channel, an aerator - a stream former and fishing gear, the spillway channel is equipped with a fence made of waterproof material that overlaps the water column from bottom to a surface providing a change in direction of movement

water flow towards the water intake channel and intensive oxygen saturation of the water by repeated reciprocal movement of the same volume of water from the aerator - stream former to the reservoir - satellite, from it to the lake and to the stream aerator.

This is achieved by the fact that the waterproof material is made in the form of a plastic film

Figure 1 shows the proposed device, a top view.

The device consists of a reservoir - satellite 1 connected to a water intake 2. lake and a spillway 3 channels, an aerator-flow generator 4 mounted on the stakes 5 of the fence 6, traps 7 and removable partitions 8. The flow (flow) of water is shown by arrows 9.

The device operates as follows. In winter, on thin ice they put fence 6 in working position, and set it so that when the aerator - flow former 7 is turned on, it directs the water flow of the spillway into the suction zone (not shown in Fig. 1) of the intake channel. The aerator - flow generator 4 is put and put into operation when the oxygen content in the lake is 4-5 mg / dm, when the fish living in the lake begin an active search for the place with the highest oxygen content. The first to respond to the aeration zone and to the flow of the aerator - stream former are peled, teal and other river fish, which annually migrate in the natural habitat along the river and against the river. In the area of the lake adjacent to the satellite pond, where the oxygen content is higher than in any other area of the lake, they concentrate and begin to migrate simultaneously along the one and the other channels where they are trapped 7.

They start fishing for carp, crucian carp and other sedentary fish when overseas occurs outside the aeration zone. To attract these fish into the satellite pond, the discharge of water from the satellite pond into the lake is first gradually reduced, then completely stopped by means of the aerator-flow adjusting damper or by gradually reducing the cross section of the intake channel. As the discharge of oxygenated water from the satellite pond into the lake decreases, the oxygen content in the portion of the lake adjacent to the satellite pond decreases, which forces the fish to move into the satellite pond.

After all the fish move to the satellite pond (when the oxygen content in the lake at the pond-satellite decreases to a value at which the fishing object cannot live), both channels are closed with watertight partitions.

In a satellite pond, fish are caught in small (50-70 m) offshore net or nets. Or they catch it with a small (150-200 m) offshore net in a section of the lake adjacent to the satellite-pond, without waiting for it to move into the satellite-pond.

The proposed device has the following advantages over the prototype. The volume of water participating in the circuit and the zone of distribution of the flow of oxygen-saturated water through the water area of the reservoir are reduced. At least 1.5-2 times the cost of electricity (fuel) for aeration of water is reduced, which is very important when developing lakes remote from settlements and rural electric networks. Increases the efficiency of fish farming.

INFORMATION SOURCES

1. RF patent 2236125, publ. 09/20/2004, Bull. Number 26

2. Slinkin N.P. New methods of intensification of lake fishing and fish farming. - Tyumen, 2009 .-- 151 p.

3. RF patent 2139655, publ. 10/20/1999, Bull. Number 29

Claims (2)

1. A device for fishing and winter keeping fish in overland lakes, consisting of a satellite pond connected to the lake by a water intake channel and a spillway channel, an aerator-stream former and fishing gears, characterized in that the spillway channel is equipped with a fence made of waterproof material that covers the water column from the bottom to the surface, providing a change in the direction of movement of the flow towards the intake channel and the intense saturation of water with oxygen by repeated reciprocating motion one about the same amount of water from the aerator in the pond-flow-companion of his lake and the flow-to-aerator. 2. The device according to claim 1, characterized in that the waterproof material is made in the form of a plastic film.