A.V. Melnik 1, V.V. Melnikov 2, A.N.Serebrennikov 2, L.A.Melnik 2, O.V.Mashukova 1
1The A.O. Kovalevsky Institute of Marine Biological Research of RAS, RF, Sevastopol, Nakhimov Av., 2
2Institute of Natural and Technical Systems, RF, Sevastopol, Lenin St., 28
UDC 591.148:574.583 (262.5)
In the present work the analysis of the state of plankton communities in the coastal waters of Sevastopol depending on the bioluminescence field dynamics was made. The relevance of such studies is undoubtful since the climatic changes in the Black Sea ecosystem resulted in appearing a huge number of new luminous invasive species. This work is based on the data obtained during the annual monitoring performed in 1966, on the basis of which the first information on the seasonal variability of bioluminescence in the Black Sea was obtained. Seasonal measurements of bioluminescence performed from 2008 up to 2015 at two stations inside the Sevastopol bay and in the open sea at 10-mile station on the traverse of the Kruglaya bay were also used for the analysis.
Satellite data were used for the analysis of the sea surface temperature (2008–2017); the average annual values of chlorophyll (1998–2017); average annual values of sea level anomalies (1993–2018); average annual values of surface wind modules (1988–2017); average annual values of the zonal components of the surface wind (1988–2017); average annual values of the meridional components of the surface wind (1988–2017) in the region of Sevastopol. Results of this work show that as a result of the global warming, significant seasonal fluctuations in bioluminescence intensity occurred due to the seasonal dynamics of the species structure and quantitative development of plankton in the area of Sevastopol Bay and in the two-mile zone from it. Some changes in the seasonal intensity of the bioluminescence fields were observed with anomalous changes in the wind and, accordingly, in the water column temperature.
Keywords: Black Sea, bioluminescence field, temperature, salinity, monitoring.
LIST OF REFERENCES
- Bityukov E. P., Rybakov V. P., shaida V. G. Annual changes in the intensity of the bioluminescent field in the neritic zone of the Black Sea // Oceanology. 1967. Vol. 7. No. 6 P. 1089-1099.
- Bityukov E. P., Evstigneev P. V., Tokarev Yu. N. Luminous Dinoflagellata of the Black sea and the influence of anthropogenic factors on them // Hydrobiological journal, 1993, No. 29, P. 27-34.
- Structure of the zooplankton community in the coastal waters of Crimea (Sevastopol region) and trophic relations in the zooplankton – Mnemiopsis food chain in 2004-2008. / N. A. Datsyk, Z. A. Romanova, G. A. Finenko [et al.] / / Marine ecological Journal. 2012. № 2. VOL. XI. P. 28-38.
- The role of estuarine regions of major rivers of Ukraine in the nutrient input to the Black sea / R. I. Minkovsky, Y. P. Ilyin, N. G. Gorelic [et al.] / / Modern state of ecosystems of the Black and Azov Seas: Intern. Conf. (Crimea, Donuzlav, September 13-16, 2005). Sevastopol: EKOSI-Hydrophysics, 2005, P. 52-53.
- Main sources of marine pollution in the Sevastopol region / E. I. Ovsyany, A. S. Romanov, R. Ya. Minkovskaya [et al.] / / Ecological safety of coastal and shelf zones and integrated use of shelf resources. Sevastopol: EKOSI-Hydrophysics, 2001. Issue. 2. P. 138-152.
- Influence of Oceanographic factors on the ecosystem of the semi-closed anthropogenically loaded Sevastopol Bay / L. N. Repetin, A.D. Gordina, E. V. Pavlova // Marine hydrophysical journal. 2003. No. 2. P. 66-80.
- Results of monitoring the hydrochemical structure of the Sevastopol Bay in the warm period of the year / N. S. Gevorgiz, S. I. Kondratev, S. V. Lyashenko [et al.] / / Ecological safety of coastal and shelf zones and integrated use of shelf resources. Sevastopol: EKOSI-Hydrophysics, 2002. Issue 1 (6). P. 139-156.
- Model of the Sevastopol Bay. Reproduction of the vertical structure of temperature and salinity fields in 1997 – 1999 / V. A. Ivanov, E. N. Mikhailova, N. B. Shapiro [et al.] / / Marine hydrophysical journal. 2003. No. 4. P. 15-35.
- Tokarev Yu. N., Vasilenko V. I., Zhuk V. F. New hydro-bio-physical complex for Express assessment of the state of coastal ecosystems // Modern methods and means of Oceanological research: materials of the XI international conference. scientific and technical Conf. part 3 (Moscow, November 25-27, 2009). Moscow: Publishing house of the Russian Academy of Sciences, 2009, P. 23-27.
- Historical database on marine bioluminescence / V.V. Melnikov, A.V. Melnik, L. A. Melnik [et al.] / / Monitoring systems of environment. Sevastopol: INTS. 2018. Issue 12 (32). P. 44-51.
- Results and prospects of bioluminescent research in the Black Sea / E. P. Bityukov, V. I. Vasilenko, I. M. Serikova [et al.] / / Ecology of the sea, 1996, No. 46, P. 19-24.
- Polonsky A.B. Oceans, global warming hiatus and regional climate vari-ability (Global and regional climate change, atmospheric and marine variability in the Black Sea region). Lambert Academic Publishing, Saarbrucken, Germany. 2015. 192 p.
- Nelson T.C. On the occurrence and food habits of ctenophores in New Jersey inlend coastal waters // Biol. Bull. 1925. Vol. 48. № 2. P. 92–111.
- Bityukov E. P. Bioluminescence of Noctiluca miliaris in different temperature conditions. 1971. Issue 24, P. 70-77.