Methodological approaches to calculating the recommended catch of gammarid Gammarus lacustris (G. O. Sars, 1864) in inland waters
https://doi.org/10.36038/0131-6184-2024-6-54-62
Abstract
The article uses the example of calculating the recommended catch (RV) of gammarids for 2021-2023 in the inland waters of the Tyumen region to compare the actual values of the fishing stock in the year of the forecast and the calculated ones performed by two different methods currently used. Based on the current procedure for submitting a forecast for the region as a whole, the issues of choosing the areas for assessing the gammarid stock are discussed. Criteria for selecting lakes for monitoring the state of gammarid stocks are discussed. The reasons for overestimation/underestimation of the forecast in the case of using the five-component method to calculate the forecast of RV gammarides are considered. When making RV forecasts, it is proposed to use the direct calculation method with averaging of gammarid biomass in model reservoirs three years before making the forecast and to calculate the average fishing area for the same years.
About the Authors
S. E. Frenkel
The State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO)
Russian Federation
Russian Federation
Svetlana E. Frenkel – Candidate of Biological Sciences, Senior Researcher at the Department of of Hydrobiology and assessment of the receiving capacity of reservoirs in Russia
105187, Moscow, Okruzhny proezd, 19
A. V. Mititello
The State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO)
Russian Federation
Russian Federation
Arseniy V. Mititello – Leading Specialist of the Department of of Hydrobiology and assessment of the receiving capacity of reservoirs in Russia
105187, Moscow, Okruzhny proezd, 19
K. V. Kutsanov
Tyumen branch of the State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO) («Gosrybtsentr»)
Russian Federation
Russian Federation
Kirill V. Kutsanov – Head of the Laboratory of Commercial Invertebrates
625023, Tyumen, Odesskaya str., 33
A. G. Gerasimov
Tyumen branch of the State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO) («Gosrybtsentr»)
Russian Federation
Russian Federation
Alexey G. Gerasimov – Chief Specialist of the Laboratory of Commercial Invertebrates
625023, Tyumen, Odesskaya str., 33
L. F. Razova
Tyumen branch of the State Scientific Center of the Russian Federation Research Institute of Fisheries and Oceanography (VNIRO) («Gosrybtsentr»)
Russian Federation
Russian Federation
Lyubov F. Razova – Candidate of Biological Sciences, Leading Researcher at the Laboratory of Commercial Invertebrates
625023, Tyumen, Odesskaya str., 33
References
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Review
For citations:
Frenkel S.E., Mititello A.V., Kutsanov K.V., Gerasimov A.G., Razova L.F. Methodological approaches to calculating the recommended catch of gammarid Gammarus lacustris (G. O. Sars, 1864) in inland waters. Fisheries. 2024;(6):54-62. (In Russ.) https://doi.org/10.36038/0131-6184-2024-6-54-62
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