pdf35

Ribogospod. nauka Ukr., 2025; 2(72): 51-74
DOI: https://doi.org/10.61976/fsu2025.02.051
UDC 597-155.3:639.2(282.247.326.4)

Peculiarities of the current structural and functional organization of the commercial ichthyocenosis of Kamianske Reservoir

I. Buzevych, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID ID 0000-0001-7526-9774, Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine, Kyiv
V. Hurbyk, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID ID 0000-0002-0835-1257, Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine, Kyiv
M. Maksymenko, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID ID 0000-0003-3373-1435, Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine, Kyiv
O. Nazarov, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID ID 0009-0006-0314-137X, Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine, Kyiv
I. Burjak, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID ID 0000-0002-6059-167X, Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine, Kyiv

Purpose. Based on the analysis of the results of field studies in the reservoir, to determine the primary data of the main commercial fish species (coefficients of fishing and natural mortality, recruitment, allowable level of elimination, catch biomass ratio) in order to assess stocks and allowable harvest volumes. To assess the commercial use of aquatic bioresources of Kamianske Reservoir.

Methodology. The initial data for assessing the stocks and volumes of allowable harvest of aquatic biological resources are the results of field studies conducted on Kamianske Reservoir in the spring (March) and summer (June-July) periods of 2021 and 2023-2024. Ichthyological material was collected from catches of gill nets with mesh sizes a=38, 40, 45, 50, 60, 75, 90, 100, 120 mm, the total amount of fishing effort studied was 1167 net days, of which 16332 fish specimens were mass measured, 1165 specimens were collected for biological analysis of the main commercial species.

Findings. The study showed that the current ichthyofauna of Kamianske Reservoir includes 41 fish species (including 19 commercial ones), which belong to 8 families. The main objects of fishing, which provide up to 80% of the total catch, are Prussian carp (Carassius gibelio Bloch, 1782), bream (Abramis brama Linnaeus, 1758), roach (Rutilus rutilus Linnaeus, 1758) and silver bream (Blicca bjoerkna Linnaeus, 1758). The trend towards an increase in commercial catches in Kamianske Reservoir, which was observed during 2010-19, has been observed to a lesser extent in recent years. In 2020, the catch decreased to 1.8 thousand tons, mainly due to Prussian carp (38.4%), secondary small-sized species (18.4%) and bream (16.2%). In 2023-2024, the catch again increased to the maximum level for the entire period of fishery exploitation of Kamianske Reservoir and amounted to 2.5 thousand tons. The main species that caused the increase in catches were bream (26.8%), roach (16.2%), silver bream (11.3%) and pikeperch (7.6%). Today, Kamianske Reservoir has a commercial stock of the main species at the level of 200 kg/ha, which ensures the possibility of its effective fishery exploitation. The main principles of regulating fishing in Kamianske Reservoir should be to reduce the fishing pressure on younger age groups and stimulate the catch of species whose stocks are not fully utilized, including through the organization of specialized fishing.

Originality. A comprehensive analysis of the current structural and functional organization of the dominant complex of the commercial ichthyocenosis of Kamianske Reservoir was conducted and original data were obtained on parameters that characterize the processes of formation and exploitation of the fishery base within the framework of scientific support for the stable state of aquatic bioresources of national importance.

Practical Value. The study materials were used to improve the existing scheme of fishery use of inland water bodies of Ukraine of national importance when implementing special use of aquatic biological resources.

Keywords: aquatic bioresources, catch structure, mortality, commercial stock.

REFERENCES

  1. Snizhko, S., Didovets, I. & Bronstert, A. (2004). Ukraine’s water security under pressure: Climate change and wartime. Water Security, 23, 1-14.  https://doi.org/10.1016/j.wasec.2024.100182.
  2. Abson, D., Fischer, J., & Leventon, J., et al. (2017). Leverage points for sustainability transformation. Ambio,46, 30-39.  https://doi.org/10.1007/s13280-016-0800-y.
  3. Arlinghaus, R., Alós, J., & Beardmore, B., et al. (2016). Understanding and Managing Freshwater Recreational Fisheries as Complex Adaptive Social-Ecological Systems. Reviews in Fisheries Science & Aquaculture, 25(1), 1-41.  https://doi.org/10.1080/23308249.2016.1209160.
  4. Dubnyak, S., & Timchenko, V. (2000). Ecological role of hydrodynamic processes in the Dnieper reservoirs. Ecological Engineering, 16 (1), 181-188.  https://doi.org/10.1016/S0925-8574(00)00103-8.
  5. Kruzhylina, S. (2015). The level of hydrobiont development as a characteristic of the conditions of fish fattening in the Dnieper reservoirs. Ribogospodarska nauka Ukrajiny, 4, 15-30.  https://doi.org/10.15407/fsu2015.04.015.
  6. Bănăduc, D., Curtean-Bănăduc, A., Barinova, S., Lozano, V. L., Afanasyev, S., Leite, T., Branco, P., Gomez Isaza, D. F., Geist, J., Tegos, A., Simić, S. B., Olosutean, H., & Cianfanglione, K. (2024). Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century. Water, 16(11), 1483. https://doi.org/10.3390/w16111483.
  7. Yakovlieva, T. V. (2013). Shtuchne vidtvorennia ikhtiofauny Dniprovskykh vodoskhovyshch: suchasnyi stan, problemy i perspektyvy. Rybohospodarska nauka Ukrainy, 1.  https://doi.org/10.15407/fsu2013.01.005.
  8. Khilchevskyi, V., Grebin, V., Dubniak, S., Zabokrytska, M. & Bolbot H. (2022). Large and small reservoirs of Ukraine. Journal of water and land development, 3, 101-107.  https://doi.org/10.24425/jwld.2022.140379.
  9. Buzevych, I. Yu. (2007). Naukovi aspekty rybopromyslovoi ekspluatatsii vodoskhovyshch Dniprovskoho kaskadu. Rybohospodarska nauka Ukrajiny, 2, 64-71.
  10. Marenkov, O. M., Nesterenko, O. S., Borovyk, I. I., Shmahailo, M. O., & Hamolin, A. V. (2024). Otsinka zapasiv i prohnoz vylovu liashcha (Abramis brama Linnaeus, 1758), sazana (Cyprinus carpio Linnaeus, 1758), plitky (Rutilus rutilus Linnaeus, 1758), karasia sribliastoho (Carassius gibelio Bloch, 1782) ta sudaka (Sander lucioperca Linnaeus, 1758) Zaporizkoho (Dniprovskoho) vodoskhovyshcha na 2025 rik. Rybohospodarska nauka Ukrajiny, 4, 41-67. https://doi.org/10.61976/fsu2024.04.041 
  11. Rudyk-Leuska, N. Ia., & Buzevych, O. A. (2024). Biolohichna kharakterystyka liashcha (Abramis brama Linnaeus, 1758) Kremenchutskoho vodoskhovyshcha yak obiekta promyslovoho rybalstva. Rybohospodarska nauka Ukrainy, 4, 27-40.  https://doi.org/10.61976/fsu2024.04.027.
  12. Sharamok, T., Ananieva, T., & Fedonenko, O. (2017). Environmental Status of Kam’yanske Reservoir (Ukraine). Ekológia Bratislava, 36, 3, 281-288.  https://doi.org/10.1515/eko-2017-0023.
  13. Vyshnevskyi, V., Demianov, V. (2021). Vyznachennia parametriv Kamianskoho vodoskhovyshcha. Melioratsiia zemel ta vodne hospodarstvo, 1, 33-38.   https://doi.org/10.31073/mivg202101-271.
  14. Vyshnevskyi, V., & Moskvina, I. (2020). Algae blooming in the Kamianske Reservoir. Land Reclamation and Water Management, 2, 16-22. https://doi.org/10.31073/mivg202002-255.
  15. Nazarov, O. B., & Borysenko, A. V. (2013). Suchasnyi stan promyslovoi ikhtiofauny Dniprodzerzhynskoho vodoskhovyshcha. Rybohospodarska nauka Ukrainy, 4, 38-49.  https://doi.org/10.15407/fsu2013.04.038.
  16. Metodyka zboru i obrobky ikhtiolohichnykh i hidrobiolohichnykh materialiv z metoiu vyznachennia limitiv promyslovoho vyluchennia ryb z velykykh vodoskhovyshch i lymaniv Ukrainy: Zatv. nakazom Derzhkomrybhospu Ukrainy № 166 vid 15.12.98. (1998). Kyiv.
  17. Metody hidroekolohichnykh doslidzhen poverkhnevykh vod. Kyiv: Lohos.
  18. Sparre, P., & Venema, S. (1998). Introduction to tropical fish stock assessment. (Part 1). FAO Fisheries technical paper, 306. Rome.
  19. Mark, N., et al. (2023). A review of estimation methods for natural mortality and their performance in the context of fishery stock assessment. Fisheries Research, 257. https://doi.org/10.1016/j.fishres.2022.106489.
  20. Sondak, V., Kurgansky, S., Zakharchenko, I., Drogan, G., & Koba, S. (2023) Perspektyvy promyslovoho vykorystannia sribliastoho karasia Kyivskoho vodoskhovyshcha. Rybohospodarska nauka Ukrainy, 2, 42-60.  https://doi.org/10.15407/fsu2023.02.042.
  21. Rudyk-Leuska, N. Ja., Buzevych, І. Yu., Leusky, M. V., Kotovska, G. O., & Khrystenko D. S. (2022). Structural indices of the Prussian carp (Carassius gibelio B.) population in the Kremenchuk Reservoir. Scientific Issue Ternopil Volodymyr Hnatiuk National Pedagogical University. Series: Biology, 3, 82, 44-51.  https://doi.org/10.25128/2078-2357.22.3.7.
Home2025№ 2/2025 (72)2025_02-051_074-Buzevych