Abstract
The dynamics of sea water self-purification processes in the water area of the Karadag Nature Reserve during five years after the emergency discharges of sulfur and oil products to the Black Sea has been studied. The toxicity of aquatic environment was estimated by the biotesting method based on using saltwater crustaceans: Artemia salina species from the Branchiopoda order. The rate of self-purification processes in surface and deep levels of sea water was established. The ecological significance of self-purification for restoring the quality of marine aquatic environment was specified. The sea water self-purification mechanisms occurring as a result of mechanical, physicochemical and biological processes are studied. It has been revealed that the incoming pollutants are diluted by marine water of the Black Sea, suspended substances gradually settle down to the bottom, while the organic substances are subjected to oxidation at the expense of oxygen dissolved in water. These processes result in organic substances gradually being mineralized by their disintegration into simpler substances. It must be underlined that a complex of biocenoses formed by different hydrobionts takes part in self-purification processes. The majority of them are also directly involved in decontamination of sea from bacterial contaminants, including pathogenic microbes. The mechanism of antibacterial action of hydrobionts is sufficiently diversified. Some of them absorb bacteria for feeding, others cause the cell lysis, and the third release the antibacterial agents into environment. Different type relationships are formed between the bacterial population and other hydrobionts. The predominant types, besides trophic, are metabiosis and antagonism. The biochemical activity of hydrobionts is a dominant process in self-purification of marine ecosystem. The conclusions are made about the need of monitoring the sea water quality by using the methods of biotesting on animal and plant test-organisms of different trophic levels.
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References
Boguslavskii, S.G. and Vysotskii, A.F., Chernoe more (The Black Sea), Ukr. Sov. Entsikl., vol. 12, 1985.
Sorokin, Yu.A., Chernoe more (The Black Sea), Moscow: Nauka, 1982.
Vinogradov, M.E., Sapozhnikov, V.V., and Shushkina, E.A., Ekosistemy Chernogo morya (Ecosystems of the Black Sea), Moscow: Nauka, 1992.
Stepanov, V.N. and Andreev, V.I., Chernoe more: resursy i problemy (The Black Sea: Resources and Problems), Leningrad: Gidrometeoizdat, 1981.
Alekin, O.A. and Lyakhin, Yu.L., Khimiya okeana (Ocean Chemistry), Leningrad: Gidrometeoizdat, 1984.
Blatov, A.S. and Ivanov, V.A., Gidrologiya i gidrodinamika shel’fovoi zony Chernogo morya (na primere Yuzhnogo berega Kryma) (Hydrology and Hydrodynamics of Shelf Zone of the Black Sea (Using an Example of the South Coast of Crimea)), Kiev: Naukova Dumka, 1992.
Blokhina, N.S. and Ordanovich, A.E., Vliyanie poverkhnostnykh zagryaznenii na protsessy konvektivnogo peremeshivaniya v poverkhnostnom sloe vodoema (The Effect of Surface Pollutants on Processes of Convective Mixing in the Surface Layer of Water Body), Vestn. MGU, Ser. 3, 1998, pp. 27–29
Gramm-Osipova, V.N. and Aref’eva, O.D., Praktikum po monitoringu vodnykh ob”ektov (Workshop on the Monitoring of Water Bodies), Vladivostok, 1998.
Khrebtova, T.V and Okhrimenko, E.O., Dvustvorchatye mollyuski kak bioindikator ekologicheskogo sostoyaniya morskoi sredy. Biorozmanittia ta rol tvaryn v ekosystemakh (Bivalved Mollusks as a Bioindicator of Ecological State of Marine Environment. Biodiversity and the Role of Animals in Ecosystems), Materialy VII Mizhnar. nauk. konf., Dnipropetrovsk, 2013, pp. 70–71.
Lapshin, O.M. and Zhmur, N.S., Smyagchenie antropogennoi nagruzki v pribrezhnykh raionakh severo-vostochnoi chasti Chernogo morya (Alleviation of Anthropogenic Load in Coastal Regions of the North-Eastern Part of the Black Sea), Tez. dokl. mezhdunar. simp. po marikul’ture (Krasnodar 24–27 Sept.), Moscow: Nebut, 1995, pp. 30–33.
Karyukhina, T.A. and Churbanova, I.I., Khimiya vody i mikrobiologiya (Water Chemistry and Microbiology), Moscow: Stroiizdat, 1983.
Eremeev, V.N., Trenkenshu, R.P., and Tokarev, Yu.N., Morskie mikrovodorosli: problemy sokhraneniya bioraznoobraziya i razvitiya biotekhnicheskogo potentsiala Ukrainy (Marine Algae: Problems of Preserving Biodiversity and Developing the Biotechnological Potential of Ukraine), Sevastopol: InBYuM, 2003.
Einor, L.O., Makrofity v ekologii vodoemov (Macrophytes in Ecology of Water Bodies), Moscow: IVP RAN, 1992.
KND 211.1.4.047-95. Metodyka biotestuvannia za dopomogoiu rakopodibnykh Artemia salina L. (Guiding Normative Document KND 211.1.4.047-95. Biotesting Technique Using Crustacea Artemia salina L), Introd. on May 10, 1995.
DSTU 4168-2003. Yakist vody. Vyznachennia gostroi letalnoi toksychnosti na morskikh rakopodibnykh (Crustacea) (Standard DSTU 4168-2003. Water Quality. Determination of Acute Lethal Toxicity on Marine Crustaceans) (ISO 14669:1999, MOD), Introd. on August 25, 2003.
Goncharuk, YY, Lapshin, V.B., Samsoni-Todorov, A.O., Kovalenko, YE, Morozova, A.L., Zaritsky, K.O, and Syroeshkin, A.V., The complex assessment of toxicity of sea water in karadag nature reserve, J. Water Chem. Technol., 2013, vol. 35, no 3, pp. 229–239.
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Russian Text © The Author(s), 2019, published in Khimiya i Tekhnologiya Vody, 2019, Vol. 41, No. 6, pp. 641–649.
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Goncharuk, V.V., Kovalenko, V.F. Characteristics of Sea Water Self-Purification Processes in the Black Sea Based on the Results of Biotesting. J. Water Chem. Technol. 41, 391–395 (2019). https://doi.org/10.3103/S1063455X19060080
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DOI: https://doi.org/10.3103/S1063455X19060080