Current information on the diversity of dinoflagellates of Ukraine

Authors

Bryantseva Yu.V.*
M.G. Kholodny Institute of Botany NAS of Ukraine, 2 Tereschenkivska Str., Kyiv 01601, Ukraine

Section:

Flora and Geography

Issue:

Vol. 32 No. 1 (2022)

Pages:

53–67

DOI:

https://doi.org/10.15407/alg32.01.053

Abstract

Present current information on the diversity of Dinoflagellata in Ukraine. The study of the species composition of microalgae in modern climate change remains relevant. Dinoflagellates, especially luminous species, are sensitive to anomalies in the warm Black Sea and can serve as a convenient indicator of the state of aquatic ecosystems due to the rapid response to external influences. The use of electron microscopy, as well as molecular genetic research methods over the past 10 years have made it possible to observe significant changes in the taxonomic system of the Miozoa division of the superclass Dinoflagellata. Based on the analysis of 204 literature sources and revision of the taxonomic composition of dinoflagellates of Ukraine, according to the international database AlgaeBase, it is established that the current list of Dinoflagellates of Ukraine includes 370 species (397 watts), belonging to 3 classes, 14 orders, 45 families and 98 genera. The number of species found in Ukraine is an order of magnitude lower than that currently known for Miozoa in the world (3636), and their distribution by order almost coincides and is very uneven: 3 orders include 63% of currently known species and 71% found in Ukraine. The most diverse in Ukraine are the orders Peridiniales (121 species, 32.4%), Gymnodiniales (82, 22%) and Gonyaulacales (61, 16.4%). Analysis of the distribution of dinoflagellates in the territorial waters of Ukraine by main algae-floristic areas confirmed that most of them live in marine waters (273, 55%), which is twice as large as terrestrial (128, 26%) and a significant proportion occurs in estuaries – 92, 19%). Among the species found on land, the largest number is attributed to the Dnieper–Black Sea (108 taxa) and Carpathian-Danube algae sub-provinces (71) due to the fact that they include contact zones of the main rivers of Ukraine and the Black Sea–Azov waters. Over the last decade, the species composition of dinoflagellates of Ukraine and their taxonomy have undergone significant changes. The number of species, orders and genera has increased, but as a result of the fact that some species have been renamed, the actual number of new species and WWT has increased by 85 units and one species has been described as new to science. But the species diversity of some dinoflagellates regions of Ukraine remains insufficiently studied, and some of them require additional research.

Keywords:

dinoflagellates, species structure, ecotopes of Ukraine, diversity

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Citation

Bryantseva Yu.V. 2022. Current information on the diversity of dinoflagellates of Ukraine. Algologia. 32(1): 53–67. https://doi.org/10.15407/alg32.01.053