The Plankton Community of Sevan Lake (Armenia) after Invasion of Daphnia (Ctenodaphnia) magna Straus, 1820
- Authors: Krylov A.V.1, Kosolapov D.B.1, Kosolapova N.G.1, Hovsepyan A.A.2, Gerasimov Y.V.1
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Affiliations:
- Papanin Institute of the Biology of Inland Waters
- Institute of Hydroecology and Ichthyology
- Issue: Vol 45, No 5 (2018)
- Pages: 505-511
- Section: Ecology
- URL: https://journals.rcsi.science/1062-3590/article/view/182800
- DOI: https://doi.org/10.1134/S1062359018050084
- ID: 182800
Cite item
Abstract
The appearance of Daphnia (Ctenodaphnia) magna Straus, 1820 in the pelagial of Sevan Lake caused significant changes in the communities of planktonic algae, bacteria, and heterotrophic nanoflagellates. Phytoplankton and nanoflagellates were the most affected by the direct impact of D. magna, and the number and biomass of bacteria increased due to the reduction in the trophic pressure of the protists. It was also facilitated by the increased supply of phosphorus as a result of the activity of the cladocerans, as well as the decrease in the number and biomass of phytoplankton, which competes with heterotrophic bacteria for the nutrients.
About the authors
A. V. Krylov
Papanin Institute of the Biology of Inland Waters
Author for correspondence.
Email: krylov@ibiw.yaroslavl.ru
Russian Federation, Nekouzskii raion, Yaroslavl oblast, 152742
D. B. Kosolapov
Papanin Institute of the Biology of Inland Waters
Email: krylov@ibiw.yaroslavl.ru
Russian Federation, Nekouzskii raion, Yaroslavl oblast, 152742
N. G. Kosolapova
Papanin Institute of the Biology of Inland Waters
Email: krylov@ibiw.yaroslavl.ru
Russian Federation, Nekouzskii raion, Yaroslavl oblast, 152742
A. A. Hovsepyan
Institute of Hydroecology and Ichthyology
Email: krylov@ibiw.yaroslavl.ru
Armenia, Yerevan, 0014
Yu. V. Gerasimov
Papanin Institute of the Biology of Inland Waters
Email: krylov@ibiw.yaroslavl.ru
Russian Federation, Nekouzskii raion, Yaroslavl oblast, 152742