RU1829893C - Method to fight emaciated condition of fish in open fish culture water reservoirs - Google Patents

Abstract

The invention relates to fish farming, in particular to means used to improve the hydrochemical and temperature conditions, and can be used to prevent the occurrence of freezing conditions in open fish ponds. To combat measuring conditions in open fish ponds, it is proposed to use the water of artesian wells of the aquifer in the Cretaceous sediments. The positive effect lies in the simultaneous restoration of temperature, oxygen and hydrochemical conditions at minimal cost.

Description

The invention relates to fish farming, and in particular, to means used to improve hydrochemical and temperature conditions and can be used to prevent the occurrence of measured states in fish ponds.

In fish ponds both in summer and in winter, freezing conditions can occur in which a large number of fry die from a violation of the hydrochemical regime, lack of oxygen, and an excessive increase in water temperature (especially in summer), and sometimes the fish die completely , which causes huge losses to the national economy. Especially sensitive to changes in temperature and disruption of the hydrochemical and oxygen regimes of whitefish, fish.

In practice, cumbersome, expensive installations are often used to pump air under ice. this consumes a large amount of electricity.

However, all of these measures to combat overseas conditions in fish-breeding ponds are expensive and ineffective.

It is proposed to use water from an aquifer in Cretaceous sediments through artesian wells. This aquifer is characterized by a large piezometric pressure :, and water mobility (10-15 atm. At the exit from the well and flow rate up to 50 liters per second), has a temperature of +6-8 ° C.

To combat measuring conditions in fish ponds, water from artesian wells can be fed into open fish ponds at any time of the year. In summer, at an elevated temperature above the temperature set for a particular fish breed, the water of an artesian well will lower the temperature of the water in the pond, and its the chemical composition will restore the hydrochemical regime, as well as the oxygen regime.

Earlier, water from artesian wells as a means of dealing with overseas conditions in fish-breeding ponds did not

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It was used, and its application in a new quality without changes will allow to obtain a new positive effect in comparison with all known means, namely: simultaneous restoration of temperature, oxygen and hydrochemical regimes in open fish ponds.

The invention will give a huge economic effect to our country.

On the territory of only the Kurgan region in its southwestern part, where the largest lakes in the region (state fish-breeding ponds) are concentrated, artesian wells can be constructed practically on the banks of ponds anywhere. This aquifer is ubiquitous throughout the southwestern, western, and northwestern parts of the Kurgan region, counting the border of the Tobol River.

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The presence of high-pressure artesian waters in any territory of the country will make it possible to use these waters to combat the measured states of fish in the most remote water bodies without additional costs for electricity, machinery and human resources.

This will allow us to use practically all lakes available in this region, both state and owned by collective farms and state farms, for efficient: fish farming.

Claims (1)

The claims The use of high-pressure artesian wells from an aquifer in the Cretaceous sediments as a means to combat stagnation in open fish ponds.