Long-Term Dynamics of Sea Surface Temperature in the Area of the Oyster and Mussel Farm (Outer Harbour of Sevastopol)

M. A. Popov

A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russia

e-mail: mark.a.popov@mail.ru

Abstract

The paper uses long-term in situ measurement data for 2000–2024 to analyse sea surface temperature variability in the water area near the oyster and mussel farm near the eastern cape of Karantinnaya Bay (Cape Lokhanochka, Sevastopol). This study is a continuation of previously published data for 2000 to 2013. Sea surface temperature measurements were taken once daily using a TM-10 mercury meteorological thermometer. Verification was performed using standard publicly available data from the Chersonesus Lighthouse Marine Hydrometeorological Station. Data comparison revealed similar results at these two observation points. Long-term (25 years) observations in the area of Cape Lokhanochka showed significant sea surface temperature fluctuations on interseasonal and interannual scales. The difference between the maximum and minimum sea surface temperatures over the entire measurement period reached 26°C. The maximum absolute sea surface temperature value (29.8°C) was recorded on 12 August 2010, and the minimum (3.8°C) was registered on 24 January 2006. The average long-term sea surface temperature for the observation period was 15.9 ± 0.2°C. The year of 2024 was noted to be the warmest year in terms of average annual sea surface temperature (17.6 ± 0.7°C), breaking the record of the previous extreme year of 2010 (17.1 ± 0.7°C). The magnitude of the positive linear trend in average annual sea surface temperature was 0.07°C/year. It was noted that climatic sea surface temperature seasons lagged behind the atmospheric ones by one month, whereas the summer season increased to four months due to September. Spring was reduced to two months. It is shown that an increase in winter sea surface temperature values prevents the formation of the cold intermediate layer in its classical definition (temperature ≤8°C). The paper presents average monthly sea surface temperatures for the entire observation period.

Keywords

average annual temperature, sea surface temperature, in situ measurements, Black Sea, coastal zone, cold intermediate layer, climate trend

Acknowledgments

The work was carried out within the framework of the state assignment of the A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS on the topic: “Comprehensive study of the mechanisms of functioning of marine biotechnological complexes in order to obtain biologically active substances from aquatic organisms” (2024–2026), no. 124022400152-1.

About the author

Mark A. Popov, Senior Researcher, A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences (2, Nakhimov Ave., Sevastopol, 299011, Russia), PhD (Geogr.), Scopus Author ID: 57197871255, ORCID ID: 0000-0003-0220-1298, mark.a.popov@mail.ru

For citation

Popov, M.A., 2026. Long-Term Dynamics of Sea Surface Temperature in the Area of the Oyster and Mussel Farm (Outer Harbour of Sevastopol). Ecological Safety of Coastal and Shelf Zones of Sea, (1), pp. 105–113.

References

  1. Zernov, S.A., 1913. [On Studying Life of the Black Sea]. In: IAS, 1913. Zapiski Imperatorskoy Akademii Nauk. Saint Petersburg: Imperatorskaya Akademiya Nauk. Vol. 32, iss. 1, 304 p. (in Russian).
  2. Shulman, G.E. and Finenko, Z.Z., eds., 1990. [Biopower of Hydrobionts]. Kiev: Naukova Dumka, 246 p. (in Russian).
  3. Mitra, A., Abdel-Gawad, F.K., Bassem, S., Barua, P., Assisi, L., Parisi, C., Temraz, T.A., Vangone, R., Kajbaf, K. et al., 2023. Climate Change and Reproductive Biocomplexity in Fishes: Innovative Management Approaches towards Sustainability of Fisheries and Aquaculture. Water, 15(4), 725. https://doi.org/10.3390/w15040725
  4. Zakharova, E.V. and Fomin, V.V., 2024. Assessment of the Accuracy of the Sea Surface Temperature of the Baltic Sea. InterCarto. InterGIS, 30(1), pp. 604–616. https://doi.org/10.35595/2414-9179-2024-1-30-604-616 (in Russian).
  5. Monin, A.S., 1999. [Hydrodynamics of the Ocean Atmosphere and Earth’s Interior]. Saint Petersburg: Gidrometeoizdat, 523 p. (in Russian).
  6. Lisitskaya, E.V., 2017. Taxonomic Composition and Seasonal Dynamics of Meroplankton in the Area of Mussel-Oyster Farm (Sevastopol, Black Sea). Marine Biological Journal, 2(4), pp. 38–49. https://doi.org/10.21072/mbj.2017.02.4.04
  7. Mashukova, O.V., Skuratovskaya, E.N. and Shilova, J.B., 2019. Biophysical and Biochemical Techniques in Monitoring the Coastal Waters of Sevastopol (Black Sea). Monitoring Systems of Environment, (1), pp. 55–62 (in Russian).
  8. Shakhmatova, O.A., Milchakova, N.A. and Kovardakov, S.A., 2018. Catalase Activity of Some Red Gelling Algae in the Different Environmental Condition of the Sevastopol Coastal Zone (Black Sea). Ekosistemy, (14), pp. 91–102 (in Russian).
  9. Popov, M.A., 2014. [Variability of Sea Surface Temperature in the Area of Cape Lokhanochka (Sevastopol, Black Sea)]. In: MHI, 2014. Ekologicheskaya Bezopasnost' Pribrezhnykh i Shel'fovykh Zon i Kompleksnoe Ispol'zovanie Resursov Shel'fa [Ecological Safety of Coastal and Shelf Zones and Comprehensive Use of Shelf Resources]. Sevastopol: ECOSI-Gidrofizika. Iss. 28, pp. 172–175 (in Russian).
  10. Abramenkova, I.V. and Kruglov, V.V., 2005. [Methods of ]Restoring Gaps in Data Arrays]. Software & Systems, (2), pp. 18–22 (in Russian).
  11. Giragosov, V.E., Zuev, G.V. and Repetin, L.N., 2006. Variability of Reproductive Potential of the Black Sea Sprat (Sprattus sprattus Phalericus) in Connection with Temperature Environmental Conditions. Marine Ekological Journal, 5(4), pp. 5–22 (in Russian).
  12. Ivanov, V.A. and Belokopytov, V.N., 2013. Oceanography of Black Sea. Sevastopol: ECOSI-Gidrofizika, 210 p.
  13. Artamonov, Yu.V., Skripaleva, E.A. and Fedirko, A.V., 2020. Regional Features of the Temperature Field Synoptic Variability on the Black Sea Surface from Satellite Data. Physical Oceanography, 27(2), pp. 186–196. https://doi.org/10.22449/1573-160X-2020-2-186-196
  14. Dzhiganshin, G.F., Polonskii, A.B. and Muzyleva, M.A., 2010. Upwelling in the northwest part of the Black Sea at the end of the summer season and its causes. Physical Oceanography, 20(4), pp. 281–293. https://doi.org/10.1007/s11110-010-9084-0
  15. Polonskii, A.B. and Novikova, A.M., 2020. Interdecadal Variability of the Black Sea Cold Intermediate Layer and Its Causes. Russian Meteorology and Hydrology, 45(10), pp. 694–700. https://doi.org/10.3103/S1068373920100039
  16. Vidnichuk, A.V. and Konovalov, S.K., 2021. Changes in the Oxygen Regime in the Deep Part of the Black Sea in 1980–2019. Physical Oceanography, 28(2), pp. 180–190. https://doi.org/10.22449/1573-160X-2021-2-180-190
  17. Belokopytov, V.N. and Zhuk, E.V., 2024. Climatic Variability of the Black Sea Thermohaline Characteristics (1950–2023). Physical Oceanography, 31(6), pp. 788–801.

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