The influence of the level regime of the Ivankovo reservoir (Middle Volga) on the state of stocks and fishing of fish living in it
https://doi.org/10.36038/0131-6184-2025-3-92-103
EDN: WAVEOC
Abstract
The article analyzes the dynamics of the water level and water content of the Ivankovo reservoir for the period from 1951 to 2022 and their impact on commercial fish stocks. It has been established that the reservoir is characterized by high interannual variability of water content and significant fluctuations in water level, especially during the spawning period. A decrease in stocks of most fish species was revealed in the early 2000s, with subsequent stabilization and partial recovery to date. There was a negative correlation between the water level response and fish stocks in the period from 1999 to 2007, which changed to a positive correlation after the closure of the fishery in 2007. It is assumed that the decrease in the maximum water level utilization in recent years, associated with a change in the reservoir regulation regime, contributes to the restoration of the number of some fish species. In general, the water level regulation regime in the Ivankovo reservoir has a significant impact on the state of its ecosystem and requires further study to develop optimal measures for the conservation and rational use of fish resources.
About the Authors
A. I. Nikitenko
Freshwater Fisheries Branch of the SSC RF VNIRO Federal State Budgetary Budgetary Institution («VNIIPRH»)
Russian Federation
Russian Federation
Alexey I. Nikitenko – Head of the Hydrobiology Group
141821, Moscow region, Dmitrov Municipal District, village 40A Rybnoye street
D. V. Goryachev
Freshwater Fisheries Branch of the SSC RF VNIRO Federal State Budgetary Budgetary Institution («VNIIPRH»)
Russian Federation
Russian Federation
Dmitry V. Goryachev – Head of the Laboratory of Aquatic Bioresources
141821, Moscow region, Dmitrov Municipal District, village 40A Rybnoye street
D. V. Artemenkov
The State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO)
Russian Federation
Russian Federation
Dmitry V. Artemenkov – Candidate of Agricultural Sciences, Senior Researcher at the Department of Commercial Invertebrates and Algae of the Department of Commercial Aquatic Organisms
19 Okruzhny Proezd, Moscow, 105187
I. A. Zhernakov
Freshwater Fisheries Branch of the SSC RF VNIRO Federal State Budgetary Budgetary Institution («VNIIPRH»)
Russian Federation
Russian Federation
Ilya A. Zhernakov – Chief Specialist of the Hydrobiology Group
141821, Moscow region, Dmitrov Municipal District, village 40A Rybnoye street
A. A. Smirnov
The State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO) ; Northeastern State University ; Dagestan State University
Russian Federation
Russian Federation
Andrey A. Smirnov – Doctor of Biological Sciences, Associate Professor, Chief Researcher of the Marine Fish Department of the Far East; Professor of the Department of Exact and Natural Sciences; Professor of the Department of Ichthyology
19 Okruzhny Proezd, Moscow, 105187
685000, Magadan, Portovaya St., 13
367025, Makhachkala, Gadzhieva str., 43a
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Review
For citations:
Nikitenko A.I., Goryachev D.V., Artemenkov D.V., Zhernakov I.A., Smirnov A.A. The influence of the level regime of the Ivankovo reservoir (Middle Volga) on the state of stocks and fishing of fish living in it. Fisheries. 2025;(3):92-103. (In Russ.) https://doi.org/10.36038/0131-6184-2025-3-92-103. EDN: WAVEOC
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