Syntaxonomy of Charophyte Algal Communities in the Northeastern Part of the Black Sea (Russia)

Dmitry F. Afanasyev, Natalia S. Berezenko, Sophia Barinova, Shamil R. Abdullin

Research output: Contribution to journalArticlepeer-review


Within the northeastern part of the Black Sea, the vegetation of charophytes was studied using the Braun-Blanquet approach. For the first time, five communities are described, including three associations and two subassociations from the alliance Charion canescentis Krausch 1964, the order Charetalia intermediae Sauer 1937, and the class Charetea intermediae F. Fukarek 1961. Diagnoses of the described syntaxa are given. A comparison with the Baltic and Mediterranean communities of charophytes is made. It is shown that all northeastern Black Sea communities with the dominance of charophytes, in contrast to Western European ones, include Lamprothamnium papulosum with high constancy. At the same time, the investigated communities are characterized by a lower occurrence and abundance of higher aquatic plants (except for Nanozostera noltei) and a slightly higher occurrence of red and green algae. An indirect ordination analysis showed the ecological isolation of the described phytocenoses and revealed two main factors influencing the floristic composition of communities—the granulometric composition of bottom sediments and water eutrophication.

Original languageEnglish
Article number154
JournalEnvironments - MDPI
Issue number9
StatePublished - Sep 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.


  • Braun-Blanquet approach
  • black sea
  • charophytes
  • indirect ordination analysis
  • phytocenosis
  • prodromus

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Renewable Energy, Sustainability and the Environment
  • General Environmental Science


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