The Indicator Role of Algae in Assessing the Organic Pollution in the Lena River Delta, the Russian Arctic

Viktor Gabyshev, Sophia Barinova, Anna Ivanova, Olga Gabysheva, Angela Curtean-Bănăduc

Research output: Contribution to journalArticlepeer-review


The Lena River forms a delta, one of the largest in the world. The entire territory of the delta is part of the Ust-Lensky State Natural Reserve. The delta is located beyond the Arctic Circle in a continuous permafrost zone. The delta is crossed by numerous channels and has lakes, streams, hollows, and swamps. In the Russian Arctic sector, ambitious plans for the development of the oil industries are being implemented. This study goal was to determine the species composition of algae in the Lena River delta and to use their properties as indicators of organic water pollution as evidence of water ecosystem stress. The results of the study revealed 700 species from 10 phyla. Statistical analysis indicate that hydrological conditions are the main factor, which can be a stressor too regulating the spatial structure of the species composition of algal communities in the Lena River delta. The distribution of groups of indicators of organic pollution, trophic state, and type of nutrition of algal cells along the main water channels suggests that now a possible source of organic pollution may be the effect of mixing river and saline waters during high tide. It is evidenced by an increase in the number of mixotrophic organisms and indicators of increased trophic state. Therefore, the integral bioindication as a method that reveals hidden connections in the ecosystem can be useful for monitoring in the period of the accentuated development of the oil industries in this Arctic region.

Original languageEnglish
Article number921819
JournalFrontiers in Environmental Science
StatePublished - 20 Jun 2022

Bibliographical note

Funding Information:
The study was performed within the framework of state assignments “Vegetation of the permafrost taiga zone of Yakutia: biodiversity, environment-forming functions, protection and rational use” (No. 0297-2021-0023, Registration No. АААА-А21-121012190038-0). This work partly supported by the Israeli Ministry of Aliyah and Integration. The publication of this paper was partly supported by Ecotur Sibiu, Romania. The work was performed using the equipment of the Shared core facilities of the Federal Research Center “Yakutsk Science Center SB RAS” (grant no. 13.SCF.21.0016).

Publisher Copyright:
Copyright © 2022 Gabyshev, Barinova, Ivanova, Gabysheva and Curtean-Bănăduc.


  • algae
  • bioindication
  • large river delta
  • Lena River in Russian Arctic
  • organic pollution
  • statistical mapping

ASJC Scopus subject areas

  • Environmental Science (all)


Dive into the research topics of 'The Indicator Role of Algae in Assessing the Organic Pollution in the Lena River Delta, the Russian Arctic'. Together they form a unique fingerprint.

Cite this