Seasonal and year-to-year dynamics of phytoplankton in connection with the level regime of the Kuibyshev Reservoir

Khaliullina, L. Yu.; Yakovlev, V. A.; Khaliullin, I. I.

doi:10.1134/s0097807809040101

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…The area of overgrown shallow waters in the Kuibyshev Reservoir is 8500 ha, with the most extensive areas in the Volga and the Volga-Kama reaches. The phytoplankton communities in the Volga cascade artificial water reservoirs are crucial for reservoirs' ecosystems, in particular for the trophic status and biological productivity of the reservoir (Khaliullina et al 2009;Konovalov and Pautova 1989;Lavrent'eva 1977;Okhapkin 1994;Nomokonova 1994, 2001). Since the 1970s, long-term monitoring of seasonal phytoplankton dynamics in the Kuibyshev water reservoir has been carried out (Gidrometeorologicheskii rezhim 1978;Khaliullina et al 2009;Konovalov and Pautova 1989;Pautova and Nomokonova 1994).…”

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confidence: 99%

Seasonal dynamics of phytoplankton communities residing in different types of shallow waters in the Kuibyshev Reservoir (Russia)

Khaliullina

Demina

2015

Int Aquat Res

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Unstable water level regime in the Kuibyshev Reservoir affects coastline formation as well as allocation and development of aquatic vegetation on the coast. These factors determine the composition and structure of biocenosis in shallow waters of the reservoir. The aim of this study was to reveal the patterns of formation, distribution and dynamics in phytoplankton communities in the shallow coastal waters on two reaches of the Kuibyshev Reservoir (Volga and Volga-Kama, Russia). These reaches differ by the extent of anthropogenic influence, protection from wind and waves and other environmental conditions. The research was done during the growing season of 2002 in the thickets of Typha angustifolia L. and Phragmites australis (Cav.) Trin. Ex Steud., as well as in the open water areas. Seasonal changes in the total biomass and abundance of phytoplankton in the thickets of macrophytes and in the open areas of the reservoir differed little. On the outer edge of the thickets, where intensive contact with the open water occurs, the highest algal species diversity and abundance were revealed, which is known as the ''edge effect''. Two peaks of phytoplankton development with maximums in June-July and late August were observed. By the end of the summer, a decrease in water level led to the autumn outbreak in volvocine algae abundance and biomass. The maintaining of an optimal water level in the reservoir is recommended for controlling of water ''blooming'' and thus maintaining high water quality.

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Section: Introductionmentioning

confidence: 99%

Seasonal dynamics of phytoplankton communities residing in different types of shallow waters in the Kuibyshev Reservoir (Russia)

Khaliullina

Demina

2015

Int Aquat Res

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Phytoplankton in the Littoral and Pelagial Zones of the Rybinsk Reservoir in Years with Different Temperature and Water-Level Regimes

Сахарова

Korneva

2018

Inland Water Biol

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Features of the Seasonal Dynamics of Phytoplankton at the Left Bank of the Volga Reach of Kuibyshev Reservoir (Republic of Tatarstan, Rf)

Khaliullina¹

2020

JEBAS

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Biocenosis of shallow waters of lowland reservoirs lives in various habitat regimes and are characterized by a special structural and functional organization. To fully elucidate these features, it is necessary to research several hydrologically different areas simultaneously. This study was conducted to evaluate the effect of seasonal dynamics on the phytoplankton community of the Volga reach of the Kuibyshev reservoir near the left bank. During the observation period, 112 taxa were found in the phytoplankton of the studied site. The greatest number of taxa were identified from the groups of diatoms (44%) and green (28%) algae. Some other less diverse groups are blue-green (16%), Chrysophyta (6%), cryptophyta and dinophyta (3%), etc. Cosmopolitan and planktonic species of algae prevail in terms of environmentally-geographical characteristics. Concerning halobility, most species are indifferent, and in terms of pH, the most common are the indifferent alkaliphile + alkalibiontic algae. The total abundance and biomass of planktonic algae range 8.49-1661.09 mln.cl./l and 10.28 -114.11 mg/l respectively. Some important dominant species are blue-green algae Microcystis aeruginosa f. flos-aquae, Aphanizomenon flos-aquae, Anabaena flos-aquae, Anabaena scheremetievi, Aulacoseira italica, Navicula sp., Carteria globosa, Chlamydomonas sp., Pandorina morum, Scenedesmus guadricauda. Seasonal dynamics of phytoplankton have two peaks of abundance and biomass which are at the end of the first decade of July and in the second decade of August. Both maxima are due to the massive development of blue-green algae, which causes water to “bloom”. The phytoplankton of the investigated section of the Kuibyshev reservoir is dominated by β-mesosaprobic organisms.

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Seasonal and year-to-year dynamics of phytoplankton in connection with the level regime of the Kuibyshev Reservoir

Cited by 4 publications

References 6 publications

Seasonal dynamics of phytoplankton communities residing in different types of shallow waters in the Kuibyshev Reservoir (Russia)

Seasonal dynamics of phytoplankton communities residing in different types of shallow waters in the Kuibyshev Reservoir (Russia)

Phytoplankton in the Littoral and Pelagial Zones of the Rybinsk Reservoir in Years with Different Temperature and Water-Level Regimes

Features of the Seasonal Dynamics of Phytoplankton at the Left Bank of the Volga Reach of Kuibyshev Reservoir (Republic of Tatarstan, Rf)

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