The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018)
The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir was studied for the period from 2000 to 2018. The species is the dominant predator here. The monitoring was based on data on the dynamics of the population size and generations, as well as changes in t...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2020-09-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| Online Access: | https://kpfu.ru/uz-eng-ns-2020-3-8.html |
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| author | V.G. Tereshchenko F.M. Shakirova V.Z. Latypova N.Yu. Stepanova O.K. Anokhina |
| author_facet | V.G. Tereshchenko F.M. Shakirova V.Z. Latypova N.Yu. Stepanova O.K. Anokhina |
| author_sort | V.G. Tereshchenko |
| collection | DOAJ |
| description | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir was studied for the period from 2000 to 2018. The species is the dominant predator here. The monitoring was based on data on the dynamics of the population size and generations, as well as changes in the age structure, growth rate, and mortality. The obtained results reveal that the pikeperch population oscillated around an equilibrium state in 2000–2007. During this period, its size varied insignificantly. Subsequently, the abundance of specimens increased, and the population became even more balanced, which has been observed up to date. The index of population wellbeing in the equilibrium states has remained unchanged throughout the two decades. However, some negative tendencies have taken place over the past 10 years: an increase in the fishing pressure and a reduction in the number of older specimens in the catches. The approach used in this study should be helpful for assessing the status of fish populations, promoting sustainable fish stock exploitation under the conditions of unstable hydrological regime of reservoirs and weak control over fishing in the conservation of fish resources. |
| format | Article |
| id | doaj-art-4ce49fa8a72a4c3ba995577664a57bef |
| institution | Kabale University |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2020-09-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-4ce49fa8a72a4c3ba995577664a57bef2025-01-02T04:25:38ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2020-09-01162344546010.26907/2542-064X.2020.3.445-460The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018)V.G. Tereshchenko0F.M. Shakirova1V.Z. Latypova2N.Yu. Stepanova3O.K. Anokhina4Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, 152742 RussiaRussian Research Institute of Fisheries and Oceanography, Tatar Branch, Kazan, 420111 RussiaKazan Federal University, Kazan, 420008 Russia; Research Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, Kazan, 420087 RussiaKazan Federal University, Kazan, 420008 RussiaRussian Research Institute of Fisheries and Oceanography, Tatar Branch, Kazan, 420111 RussiaThe population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir was studied for the period from 2000 to 2018. The species is the dominant predator here. The monitoring was based on data on the dynamics of the population size and generations, as well as changes in the age structure, growth rate, and mortality. The obtained results reveal that the pikeperch population oscillated around an equilibrium state in 2000–2007. During this period, its size varied insignificantly. Subsequently, the abundance of specimens increased, and the population became even more balanced, which has been observed up to date. The index of population wellbeing in the equilibrium states has remained unchanged throughout the two decades. However, some negative tendencies have taken place over the past 10 years: an increase in the fishing pressure and a reduction in the number of older specimens in the catches. The approach used in this study should be helpful for assessing the status of fish populations, promoting sustainable fish stock exploitation under the conditions of unstable hydrological regime of reservoirs and weak control over fishing in the conservation of fish resources.https://kpfu.ru/uz-eng-ns-2020-3-8.htmlpikeperch (sander lucioperca)kuibyshev reservoirpopulationdynamicsstructurestatus monitoring |
| spellingShingle | V.G. Tereshchenko F.M. Shakirova V.Z. Latypova N.Yu. Stepanova O.K. Anokhina The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) Учёные записки Казанского университета: Серия Естественные науки pikeperch (sander lucioperca) kuibyshev reservoir population dynamics structure status monitoring |
| title | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) |
| title_full | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) |
| title_fullStr | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) |
| title_full_unstemmed | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) |
| title_short | The population status of pikeperch, Sander lucioperca (Linnaeus, 1758), in the Kuibyshev Reservoir (2000–2018) |
| title_sort | population status of pikeperch sander lucioperca linnaeus 1758 in the kuibyshev reservoir 2000 2018 |
| topic | pikeperch (sander lucioperca) kuibyshev reservoir population dynamics structure status monitoring |
| url | https://kpfu.ru/uz-eng-ns-2020-3-8.html |
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