ECOLOGICAL AND MORPHOLOGICAL GROUPS OF SUMMER MICROPHYTOBENTHOS IN OBOLON BAY (DNIPRO RIVER, UKRAINE)
DOI:
https://doi.org/10.32782/1998-6475.2025.59.3Keywords:
bottom algal communities, structure, ecology of algaeAbstract
The microphytobenthos in the Obolon Bay was represented by 5 ecological and morphological groups of algae. Along with benthic organisms, the microphytobenthos included planktonic organisms, gravitating from the water column to the bottom under unfavorable conditions, and periphytic organisms, falling down from higher aquatic vegetation. In summer, both periphytic and planktonic organisms play an essential role in the microphytobenthos species composition, forming a specific algal aggregation on the bottom in the bay littoral – an unsteady assemblage of algae with different biotopic preference. The basis of the algal community is made up of three ecological-morphological groups, among which the ecological- morphological group of periphytons prevails; the other two are less represented in the species richness of benthic algae, among them, the ecological-morphological group of littoral eurytopic diatoms and the ecologicalmorphological group of small and medium-sized diatoms stand out, which are represented in almost equal proportions.
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