Zooplankton (Rotifera, Cladocera, Copepoda) of Tributaries of the Cheboksary Reservoir (Middle Volga, Russia)
Citation
Gavrilko D, Zhikharev V, Zolotareva T, Kudrin I, Yakimov B, Erlashova A (2023). Zooplankton (Rotifera, Cladocera, Copepoda) of Tributaries of the Cheboksary Reservoir (Middle Volga, Russia). Version 1.7. National Research Lobachevsky State University of Nizhny Novgorod. Sampling event dataset https://doi.org/10.15468/b2ym8s accessed via GBIF.org on 2024-09-06.Description
The presented data set contains information on the distribution and species composition of zooplankton (rotifers and crustaceans) recorded in the Middle Volga basin, Russia. The studies were conducted in tributaries of the Cheboksary Reservoir (Nizhny Novgorod Oblast and the Republic of Mari El). Hydrobiological data were obtained and published between 2015 and 2022 from 13 rivers: Vetluga, Sura, Kerzhenets, Sundovik, Kudma, Vezloma, Linda, Pyra, Trestyanka, Chernaya (Zavolzhye), Zhuzhla, Chernaya (Pravoberezhye) and Uzola. In total, the dataset includes 6710 records of 257 zooplankton species belonging to 36 families, including 4 invasive species.Sampling Description
Study Extent
The presented data set on the taxonomic composition and abundance of zooplankton in tributaries of the Cheboksary Reservoir is based on original materials (samples) of the authors. The species list includes native species and naturalised species, including invasive species. The dataset represents mainly native species (98.4%), with invasive species accounting for no more than 1.6%. Studies were carried out in tributaries of the Cheboksary Reservoir (Nizhny Novgorod Region and the Republic of Mari El, European Russia). Hydrobiological data were obtained and published from 2015 to 2022 from 13 rivers: Vetluga, Sura, Kerzhenets, Sundovik, Kudma, Vezloma, Linda, Pyra, Trestyanka, Chernaya (Zavolzhye), Zhuzhla, Chernaya (Pravoberezhye) and Uzola.Sampling
The identification of the species composition of zooplankton was performed in 2015–2022. Standard hydrobiological methods for studying zooplankton were applied (Methodology…, 1975; Taxonomic key…, 2010). Sampling grids have been developed. Own data were used to compile the species list.Quality Control
All samples were identified by the researchers working in the Lobachevsky State University of Nizhnii Novgorod, and were stored in the scientific collection of the university. The reliability of the taxonomic definitions was confirmed by taxonomists of Aitem-0.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences (Korovchinsky et al, 2021; Sinev, Gavrilko, 2020). The taxonomic nomenclature is given in accordance with the taxonomic system GBIF Backbone Taxonomy (GBIF Secretariat, 2021). In order to publish the dataset on the GBIF network, the records have been adjusted according to the Darwin Core specifications (Wieczorek et al., 2012).Method steps
- Zooplankton samples were collected by towing a plankton net (70 μm mesh) from the bottom to the water surface. The samples were concentrated to 100 mL and were fixed to a final concentration of 4% formalin solution. Samples were analyzed using light microscopy to identify, count, and measure organisms, determine zooplankton density. Zooplankton specimens were examined using a Zeiss Stemi 2000C stereomicroscope (Carl Zeiss Microscopy, Munich, Germany), and a detailed morphological analysis was performed using an Olympus CX43 light microscope (Olympus Corporation, Tokyo, Japan). When specifying the taxonomic affiliation of zooplankton, we used proper manuals and guides (Błedzki, Rybak, 2016; Rogers, Thorp, 2019; Korovchinsky et al., 2021, Kutikova, 1970; Taxonomic key…, 2010).
Taxonomic Coverages
Freshwater zooplankton Rotifera
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Rotiferarank: phylum
Freshwater zooplankton Cladocera
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Cladocerarank: suborder
Freshwater zooplankton Copepoda
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Copepodarank: class
Geographic Coverages
The studies were conducted in tributaries of the Cheboksary Reservoir (Nizhny Novgorod Region and the Republic of Mari El, Russian)
Bibliographic Citations
Contacts
Dmitry Gavrilkooriginator
position: Researcher
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: dima_gavrilko@mail.ru
Vyacheslav Zhikharev
originator
position: Researcher
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: zhiharev@ibbm.unn.ru
Tatyana Zolotareva
originator
position: Researcher
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: tanyakuklina.nn@yandex.ru
Ivan Kudrin
originator
position: Associate professor
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: kudriniv@mail.ru
Basil Yakimov
originator
position: Head of Department of Ecology
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: damselfly@yandex.ru
Aleksandra Erlashova
originator
position: Student
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: erlasovaaleksandra@gmail.com
Dmitry Gavrilko
metadata author
position: Researcher
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: dima_gavrilko@mail.ru
Basil Yakimov
publisher
position: Head of the Department of Ecology
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU
email: basil.yakimov@bio.unn.ru
Dmitry Gavrilko
administrative point of contact
position: Researcher
National Research Lobachevsky State University of Nizhny Novgorod
pr. Gagarina, 23
Nizhny Novgorod
Nizhny Novgorod Region
RU