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Contemporary Problems of Ecology

, Volume 12, Issue 2, pp 179–188 | Cite as

Ecological State of the Southeastern Part of Sivash Bay (Sea of Azov) under Conditions of Changing Salinity

  • O. V. Soloveva
  • E. A. TikhonovaEmail author
  • S. V. Alemov
  • N. V. Burdiyan
  • T. V. Viter
  • E. V. Guseva
  • E. A. Kotelyanets
  • T. A. Bogdanova
Article

Abstract

An assessment of the current ecological state of Sivash Bay (southern part of the Eastern Sivash) under the conditions of changes in its water regime is given in this study. Judging from the concentrations of the main pollutant classes, the prevailing type of anthropogenic impact on the ecosystem state of the studied area is the reduction of freshwater runoff, which caused the growth of salinity. Quantitative indicators of the microbial community of the bay bottom sediments characterize their pollution with organic substances. The increase in salinity of the reservoir caused a restructuring of the main components of the bottom community, such as meio and macrozoobenthos, expressed in a lowering of the biodiversity indicators and a change in the biocenosis taxonomic structure.

Keywords

Sivash Bay physicochemical indicators biogeocenosis macrozoobenthos meiobenthos bacteria heavy metals 

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • O. V. Soloveva
    • 1
  • E. A. Tikhonova
    • 1
    Email author
  • S. V. Alemov
    • 1
  • N. V. Burdiyan
    • 1
  • T. V. Viter
    • 1
  • E. V. Guseva
    • 1
  • E. A. Kotelyanets
    • 2
  • T. A. Bogdanova
    • 1
  1. 1.Kovalevsky Institute of Marine Biological ResearchRussian Academy of SciencesSevastopolRussia
  2. 2.Marine Hydrophysical InstituteRussian Academy of SciencesSevastopolRussia

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