Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)

Long-term (1998-2018) studies have been carried out on the small lake, Karasikha, located in the territory of the Volga-Kama State Nature Biosphere Reserve. Physicochemical characteristics of the lake water classify it as eutrophic, polluted, with a low oxygen content, but a high content of organic...

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Autores principales:	Оlga Iurievna Derevenskaia, Natalia Iurievna Borisova, Elena Nikolaevna Unkovskaia
Formato:	article
Lenguaje:	EN
Publicado:	University of Guilan 2021
Materias:	zooplankton lake bio-indicator nature reserve eutrophication water quality Environmental sciences GE1-350 Science Q
Acceso en línea:	https://doaj.org/article/e9d17c05f8bc40deb7bf3ca8f7ba274d
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id	oai:doaj.org-article:e9d17c05f8bc40deb7bf3ca8f7ba274d
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spelling	oai:doaj.org-article:e9d17c05f8bc40deb7bf3ca8f7ba274d2021-12-02T20:25:58ZZooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)1735-30331735-386610.22124/cjes.2021.5143https://doaj.org/article/e9d17c05f8bc40deb7bf3ca8f7ba274d2021-10-01T00:00:00Zhttps://cjes.guilan.ac.ir/article_5143_47a9e5a895c639d063f8165d6ea4055d.pdfhttps://doaj.org/toc/1735-3033https://doaj.org/toc/1735-3866Long-term (1998-2018) studies have been carried out on the small lake, Karasikha, located in the territory of the Volga-Kama State Nature Biosphere Reserve. Physicochemical characteristics of the lake water classify it as eutrophic, polluted, with a low oxygen content, but a high content of organic matter and phosphates. In parallel, some studies were carried out on its zooplankton community. Karasikha Lake is the habitat of 70 species of planktonic rotifers and crustaceans identified. Based on the number of species, rotifers predominated and their largest number belonged to Brachionidae family. On average 3-4 species were dominant, as indicators of eutrophic and polluted waters. However, with a relatively high species richness of zooplankton, the community has low quantitative indicators. The low oxygen content in the water column makes zooplankton concentrate mainly in the epilimnion layer (up to 2-3 m in depth). The lowest quantitative indicators of zooplankton are characteristic of the under-ice period, which is also associated with a lack of oxygen in the water. The community is dominated by indicators of dirty waters. The structure of zooplankton communities is typical of highly polluted lakes. Indices based on the taxonomic structure of zooplankton classify the reservoir as highly eutrophic and even hypertrophic.Оlga Iurievna DerevenskaiaNatalia Iurievna BorisovaElena Nikolaevna UnkovskaiaUniversity of Guilanarticlezooplanktonlakebio-indicatornature reserveeutrophicationwater qualityEnvironmental sciencesGE1-350ScienceQENCaspian Journal of Environmental Sciences , Vol 19, Iss 4, Pp 701-708 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	zooplankton lake bio-indicator nature reserve eutrophication water quality Environmental sciences GE1-350 Science Q
spellingShingle	zooplankton lake bio-indicator nature reserve eutrophication water quality Environmental sciences GE1-350 Science Q Оlga Iurievna Derevenskaia Natalia Iurievna Borisova Elena Nikolaevna Unkovskaia Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
description	Long-term (1998-2018) studies have been carried out on the small lake, Karasikha, located in the territory of the Volga-Kama State Nature Biosphere Reserve. Physicochemical characteristics of the lake water classify it as eutrophic, polluted, with a low oxygen content, but a high content of organic matter and phosphates. In parallel, some studies were carried out on its zooplankton community. Karasikha Lake is the habitat of 70 species of planktonic rotifers and crustaceans identified. Based on the number of species, rotifers predominated and their largest number belonged to Brachionidae family. On average 3-4 species were dominant, as indicators of eutrophic and polluted waters. However, with a relatively high species richness of zooplankton, the community has low quantitative indicators. The low oxygen content in the water column makes zooplankton concentrate mainly in the epilimnion layer (up to 2-3 m in depth). The lowest quantitative indicators of zooplankton are characteristic of the under-ice period, which is also associated with a lack of oxygen in the water. The community is dominated by indicators of dirty waters. The structure of zooplankton communities is typical of highly polluted lakes. Indices based on the taxonomic structure of zooplankton classify the reservoir as highly eutrophic and even hypertrophic.
format	article
author	Оlga Iurievna Derevenskaia Natalia Iurievna Borisova Elena Nikolaevna Unkovskaia
author_facet	Оlga Iurievna Derevenskaia Natalia Iurievna Borisova Elena Nikolaevna Unkovskaia
author_sort	Оlga Iurievna Derevenskaia
title	Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
title_short	Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
title_full	Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
title_fullStr	Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
title_full_unstemmed	Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)
title_sort	zooplankton indices in the evaluation of the ecological state of the eutrophic lake (case study: karasikha lake, russia)
publisher	University of Guilan
publishDate	2021
url	https://doaj.org/article/e9d17c05f8bc40deb7bf3ca8f7ba274d
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Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia)

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