Providing Safety of Fish Passing to Spawning Ground on the Example of Kochetovsky Waterworks Facility on the River Don

Anokhin, A. M.; Kopadze, I. Z.; Dontsov, A. A.

doi:10.23947/2541-9129-2018-3-4-79-86

Cited by 2 publications

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“…и туводных (стерляди, карповых и др.) видов рыб [4,5]. Рыбоводческая Выполненными на гидроузле исследованиями [7,8] 5 дящих к гидроузлу 36 видов рыб.…”

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Fish Passage and Spawning Channel as a Part of the Kochetovsky Waterworks on the River Don

Shkura¹,

Shevchenko²

2023

LRAHE

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Purpose: development of a layout and design solution for a fish passage and spawning channel, arranged as a part of the Kochetovsky waterworks on the river Don. Materials and methods. The factual basis of the development was made up of known information and materials of complex authors’ surveys and studies carried out at the Kochetovsky waterworks according to generally accepted methods. Results. When developing a technical solution for a fish passage and spawning canal, scientific and technical information on the layout and design of the hydraulic structures of the existing Kochetovsky waterworks, data on the hydrology and hydrometry of the investigated section of the river, topographic and other materials were collected, processed and analyzed. It is proposed to contour the canal bypassing the waterworks structures within the right-bank water protection zone of the river with the inclusion of: an inlet head equipped with a mating flume and an additional power supply unit; canal track of a curved shape in a plan, equipped with recreation areas for fish; outlet head with a head regulator that performs the function of the main power unit. A channel arrangement with the following characteristics is proposed: the total flow rate at the fish entry to the channel is 90 cubic m/s; channel track flow rate, provided by the head regulator, 50 cubic m/s and the consumption of an additional power supply unit of 40 cubic m/s; the average water flow velocity in the non-flooded zone of the channel tract is 0.95 m/s; channel inlet flow rate 0.60–1.05 m/s; water depth in the unflooded zone of the canal tract 2.5 m; channel width (trapezoidal section) along the bottom 15.0 m; slopes gradient 2.5; channel length 5850 m. Conclusion. A layout and design solution for a fish passage and spawning canal, arranged bypassing the Kochetovsky waterworks facilities (river Don), organically adapted to the conditions of its creation and providing conditions for passing and spawning of anadromous fish species, has been developed.

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Fish Passage and Spawning Channel as a Part of the Kochetovsky Waterworks on the River Don

Shkura¹,

Shevchenko²

2023

LRAHE

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Fish-spawning channel consisting of Kochetovsky waterworks facility on the Don river (variants of layout and design solutions)

Shkura¹,

Shevchenko²

2023

Fish Breeding and Fisheries

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The relevance of the development of technical solutions for the Kochetovsky fish-spawning channel is predetermined by the ongoing degradation of populations and a decrease in commercial fish stocks in the Azov-Don fishery basin. One of the reasons for the current and deteriorating fishing conditions on the Lower Don is a decrease in the volume of natural reproduction of passing and semi-passing fish. The necessary volumes of natural reproduction of commercial herds can be provided by creating conditions for spawning migrations and spawning of fish in the Don River. This task can be solved to a certain extent by the creation of the Kochetovsky fish-spawning channel, which predetermined the purpose of the study to develop a technical justification for the possibility of its device and layout and design solutions. The factual basis was the data of surveys and studies carried out at the Kochetovsky waterworks facility. Surveys, surveys and studies were carried out in compliance with generally accepted methods, and the development of layout and structural solutions of structures using search design technologies. Two competing versions of the canal arrangement with its location along the bank of the Don River and along the riverbed of the Barsovka River have been developed. Both of the proposed solutions take into account the conditions of their device and ensure their functioning according to their intended purpose — to create conditions for the passage and spawning of fish. Each of the options has certain technical and fish science advantages, characterized by different possibilities for attracting fish to the channel, their passage from the lower reaches of the hydroelectric power plant to the upper and spawning in the channel tract. The work was carried out in the order of pre-design study, which determines the technical feasibility of the fish-spawning channel and establishes its hydrometric parameters. The choice of the option from the two proposed is proposed to be carried out by specialists of the fisheries sector, taking into account the ratio of the potential possibilities of channels for passing and spawning certain species and quantities of fish, and their technical and economic indicators.

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Providing Safety of Fish Passing to Spawning Ground on the Example of Kochetovsky Waterworks Facility on the River Don

Cited by 2 publications

References 0 publications

Fish Passage and Spawning Channel as a Part of the Kochetovsky Waterworks on the River Don

Fish Passage and Spawning Channel as a Part of the Kochetovsky Waterworks on the River Don

Fish-spawning channel consisting of Kochetovsky waterworks facility on the Don river (variants of layout and design solutions)

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