Summer phytoplankton 24-hours dynamics in the lake Svetloyar (Nizhny Novgorod region)
Ekaterina L. Vodeneeva1,2, Ekaterina M. Sharagina1, Pavel V. Kulizin1, 1Lobachevsky State University of Nizhny Novgorod (Nizhny Novgorod, Russia) In this research the information of structural parameters of algocenoses (species richness, proportions of leading groups, abundance, biomass) in the photosynthetic zone of a unique karst lake Svetloyar (Nizhny Novgorod region) is provided according to the data for the summer of 2012. During the studied 24-hours period the main components of plankton were coccoid green and diatom algae, colonial and filamentous cyanobacteria, whose daily vertical migration was poorly expressed. The maximum of abundance and biomass of these species were noted at the afternoon (the period from 13:30 to 16:30) and in the most heated layer (0–4 m). Motile algae (mainly from phylum Dinophyta) were characterized with more noticeable daily activity. They were present in the algocenoses only in the daytime and evening hours and moved at night and in the morning below the photosynthetic zone. The daily dynamics of the species richness of algae demonstrated was similar with the indicators of quantitative development, while the number of dominant species remained stable during the day (amounting to 1–4 taxa in the sample). Key words: daily dynamics; phytoplankton; abundance; biomass; karst lakes; lake Svetloyar Nizhny Novgorod region
Full text of the article in Russian - http://algology.ru/1636 References
Authors Vodeneeva Ekaterina L. Ekaterina Mikhailovna Sharagina ORCID – http://orcid.org/0000-0002-9998-4809, eLIBRARY Author ID – 140462 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia; Nizhny Novgorod Branch of VNIRO, Nizhny Novgorod, Russia vodeneeva@mail.ru Sharagina Ekaterina M. ORCID – http://orcid.org/0000-0002-1670-7890, eLIBRARY Author ID – 1087614 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia sharaginaekaterinabio@gmail.com Kulizin Pavel V. ORCID – http://orcid.org/0000-0003-2701-304X, eLIBRARY Author ID – 996229 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia kulizinpavel@yandex.ru Startseva Natalia A. ORCID – http://orcid.org/0000-0002-8656-9593 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia startseva@bio.unn.ru Zhurova Daria A. ORCID – http://orcid.org/0000-0001-8626-8427 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia ruthheatherale@gmail.com Okhapkin Alexander G. ORCID – http://orcid.org/0000-0001-7028-2785, eLIBRARY Author ID – 79462 Lobachevsky State University of Nizhny Novgorod, Institute of biology and biomedicine, Nizhny Novgorod, Russia okhapkin@bio.unn.ru
ARTICLE LINK: Vodeneeva E.L., Sharagina E.M., Kulizin P.V., Startseva N.A., Zhurova D.A., Okhapkin A.G. Summer phytoplankton 24-hours dynamics in the lake Svetloyar (Nizhny Novgorod region). Voprosy sovremennoi algologii (Issues of modern algology). 2021. № 1 (25). P. 25–31. URL: http://algology.ru/1636 DOI – https://doi.org/10.33624/2311-0147-2021-1(25)-25-31 When reprinting a link to the site is required
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