Phyto- and zooplankton of the Khadzhybey estuary (2016, 2021-2023)
In: Hydrobiological journal. Scripta Technica: New York etc.. ISSN 0018-8166; e-ISSN 1943-5991, meer
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| Trefwoorden |
Aquatic communities > Plankton > Phytoplankton
Aquatic communities > Plankton > Zooplankton
Numbers
Population characteristics > Biomass
Production
Brak water |
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| Auteurs | | Top |
- Dyadichko, V.G.
- Kharitonova, Y.V.
- Garkusha, O.P.
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| Abstract |
Seasonal and interannual changes in the taxonomic structure, numbers and biomass of phytoplankton and zooplankton, and also in zooplankton production were investigated in the Khadzhybey estuary in 2016 and 2021−2023. Totally 36 species of phytoplankton of five divisions and 24 taxa of zooplankton were found. The highest biomass of phyto- and zooplankton were observed in the middle and upper sections of the estuary. In terms of the quantitative indices of phytoplankton development, the Khadzhybey estuary is a highly eutrophic water body characterized by the constant water bloom formed by Cyanoprokaryota. All registered zooplankton organisms belong to fish food objects. The average annual values of zooplankton biomass differed several times, but the taxonomic composition and predominance of individual species in the community remained unchanged. At the present time, zooplankton biomass is higher than that observed prior to 2016. Despite the fact that the maximum numbers and biomass of zooplankton were registered in 2021, the highest zooplankton production was observed in 2022. |
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