Composition and structure of algal flora of the Kara-Bogaz-Gol Bay (Caspian Sea)

Author:

Bulatov Stanislav A.1ORCID

Affiliation:

1. International Institute for Modeling and Forecasting the Development of Marine and Hypersaline Ecosystems LLC, Klin, Russia

Abstract

The provides data on the composition and structure of algal flora in the Kara-Bogaz-Gol Bay of the Caspian Sea, obtained in 1998–2021. A checklist of 106 species and varieties of algae and cyanobacteria was compiled, belonging to 5 divisions, 33 orders, 51 families and 63 genera. The data on the halotolerance of each of the taxa are presented. The taxonomic dominance of Bacillariophyta, Cyanobacteria and Dinoflagellata was noted. The maximum taxonomic diversity of algae and cyanobacteria in the bay was observed in the areas of the mixing zone (91 taxa), the Karasukut Spit (47) and south of the Kara-Bogaz-Gol Strait (33). The predominance of halophiles (23.6%), indifferents (18.7%) and mesohalobes (17.9%). Shannon Diversity Index in Kara-Bogaz-Gol Bay ranged from 0.25 to 2.83. The dependence of the Shannon Diversity Index on the salinity was noted. Ecologically, benthic forms of algae prevail in the Kara-Bogaz-Gol Bay.

Publisher

Farwater LLC

Subject

General Medicine

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