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Abstract <p>The Kokuy oil-and-gas deposit is characterized by the unique geological structure with extensive karst formations, facilitating pervasive hydrocarbon migration into surface environments, including those not associated with oil recovery sites. The Turaevka River is one of such objects. High-throughput sequencing revealed predomination of members of the phyla <i>Pseudomonadota</i>, <i>Chloroflexota</i>, and <i>Actinomycetota</i> at high oil content, while at lower contamination level, the share of <i>Bacteroidota</i> in the overall bacterial pool increased. Genus-level analysis revealed predomination of <i>Thiobacillus</i> (class <i>Betaproteobacteria</i>) in all samples.</p>

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Bacteriocenose Structure in the Benthic Ecotopes under Karst-Affected Oil Contamination in the Case of Turaevka River (Kokuy Deposit, Russia)

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • D. O. Egorova,
  • A. R. Mansurova,
  • Yu. V. Khotyanovskaya,
  • E. R. Ponomareva

摘要

Abstract

The Kokuy oil-and-gas deposit is characterized by the unique geological structure with extensive karst formations, facilitating pervasive hydrocarbon migration into surface environments, including those not associated with oil recovery sites. The Turaevka River is one of such objects. High-throughput sequencing revealed predomination of members of the phyla Pseudomonadota, Chloroflexota, and Actinomycetota at high oil content, while at lower contamination level, the share of Bacteroidota in the overall bacterial pool increased. Genus-level analysis revealed predomination of Thiobacillus (class Betaproteobacteria) in all samples.