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International Journal on Algae
SJR: 0.219 SNIP: 0.261 CiteScore™: 0.24

ISSN Imprimir: 1521-9429
ISSN On-line: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v15.i2.50
pages 164-179

Responses of Algal Communities of the North-Western Black Sea to the Impact of Local, Regional, and Global Factors

G. G. Minicheva
Institute of Marine Biology, NAS Ukraine 37, Pushkinskaya St., 65011 Odessa, Ukraine
Yu. S. Tuchkovenko
Odessa State Ecological University, Odessa Branch of the Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Odessa, Ukraine
V. Bolshakov
Department of Morphofunctional Ecology of Aquatic Vegetation, Odessa Branch of the Institute of Biology of Southern Seas, NAS of Ukraine, 37, Pushkinskaya St., 65125 Odessa, Ukraine
A. B. Zotov
Institute of Marine Biology, NAS of Ukraine, 37 Pushkinskaya St., Odessa 65011, Ukraine
E. Rusnak
Department of Morphofunctional Ecology of Aquatic Vegetation, Odessa Branch of the Institute of Biology of Southern Seas, NAS of Ukraine, 37, Pushkinskaya St., 65125 Odessa, Ukraine

RESUMO

Reactions of phytobentos and phytoplankton communities of the northwestern part of the Black Sea to the factors of local, regional, and global levels were investigated using techniques of morphofunctional ecology and methodology of a holistic approach. The effect of factors of each level on algal communities was estimated using a scale with seven grades. The strongest negative impact on communities of benthic algae at the local level resulted in intensive transformation of natural habitats in the coastal zone. At the regional level, processes of significant reduction of algal communities due to a decreasing eutrophication of the sea were discovered. At the global level, climate anomalies seem to be the main reason for the growth of negative trends in algal communities; in the last decade they became a significant factor affecting production, structure, and functional organization of benthic and plankton communities of algae.


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