Phytoplankton as an indicator of the current ecological status of the Ob River
The species composition, taxonomic structure, and the dominant complex of algae, and the distribution of phytoplankton abundance in the studied watercourse were identified based on data obtained for phytoplankton from the Ob River (from Tomsk to Salekhard) in summer 2019. Green algae (division Chlor...
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2021
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Online Access: | https://doi.org/10.3897/abs.7.e79236 |
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ftzenodo:oai:zenodo.org:5811723 2024-09-15T18:27:26+00:00 Phytoplankton as an indicator of the current ecological status of the Ob River Barsukova, Natalya N. Bazhenova, Olga P. Kolesnichenko, Larisa G. 2021-12-23 https://doi.org/10.3897/abs.7.e79236 unknown Pensoft Publishers https://doi.org/10.3897/abs.7.e79236 oai:zenodo.org:5811723 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Acta Biologica Sibirica, 7, 573-591, (2021-12-23) Dominant complex phytoplankton species composition taxonomic structure trophic status info:eu-repo/semantics/article 2021 ftzenodo https://doi.org/10.3897/abs.7.e79236 2024-07-26T09:55:31Z The species composition, taxonomic structure, and the dominant complex of algae, and the distribution of phytoplankton abundance in the studied watercourse were identified based on data obtained for phytoplankton from the Ob River (from Tomsk to Salekhard) in summer 2019. Green algae (division Chlorophyta) make up the basis of the phytoplankton abundance in the river. The dominant complex is represented mainly by centric diatoms (genera Aulaсoseira , Cyclotella , Stephanodiscus ) and non-heterocyst forms of cyanoprokaryotes (genus Aphanocapsa ). The numbers and biomass of phytoplankton gradually decrease downstream of the Ob River; below the confluence of the Irtysh River, the edge effect occurs: increase in the diversity and density of organisms at the boundaries of ecosystems. Compared to the previous studies, the proportion of green and euglena algae, and cyanoprokaryotes in the taxonomic spectrum of phytoplankton increased, the composition of the dominant complex enriched, including due to non-heterocyst forms of cyanoprokaryotes, and the trophic status of the river increased to the category of eutrophic waters. Article in Journal/Newspaper ob river Sibirica Zenodo Acta Biologica Sibirica 7 573 591 |
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unknown |
topic |
Dominant complex phytoplankton species composition taxonomic structure trophic status |
spellingShingle |
Dominant complex phytoplankton species composition taxonomic structure trophic status Barsukova, Natalya N. Bazhenova, Olga P. Kolesnichenko, Larisa G. Phytoplankton as an indicator of the current ecological status of the Ob River |
topic_facet |
Dominant complex phytoplankton species composition taxonomic structure trophic status |
description |
The species composition, taxonomic structure, and the dominant complex of algae, and the distribution of phytoplankton abundance in the studied watercourse were identified based on data obtained for phytoplankton from the Ob River (from Tomsk to Salekhard) in summer 2019. Green algae (division Chlorophyta) make up the basis of the phytoplankton abundance in the river. The dominant complex is represented mainly by centric diatoms (genera Aulaсoseira , Cyclotella , Stephanodiscus ) and non-heterocyst forms of cyanoprokaryotes (genus Aphanocapsa ). The numbers and biomass of phytoplankton gradually decrease downstream of the Ob River; below the confluence of the Irtysh River, the edge effect occurs: increase in the diversity and density of organisms at the boundaries of ecosystems. Compared to the previous studies, the proportion of green and euglena algae, and cyanoprokaryotes in the taxonomic spectrum of phytoplankton increased, the composition of the dominant complex enriched, including due to non-heterocyst forms of cyanoprokaryotes, and the trophic status of the river increased to the category of eutrophic waters. |
format |
Article in Journal/Newspaper |
author |
Barsukova, Natalya N. Bazhenova, Olga P. Kolesnichenko, Larisa G. |
author_facet |
Barsukova, Natalya N. Bazhenova, Olga P. Kolesnichenko, Larisa G. |
author_sort |
Barsukova, Natalya N. |
title |
Phytoplankton as an indicator of the current ecological status of the Ob River |
title_short |
Phytoplankton as an indicator of the current ecological status of the Ob River |
title_full |
Phytoplankton as an indicator of the current ecological status of the Ob River |
title_fullStr |
Phytoplankton as an indicator of the current ecological status of the Ob River |
title_full_unstemmed |
Phytoplankton as an indicator of the current ecological status of the Ob River |
title_sort |
phytoplankton as an indicator of the current ecological status of the ob river |
publisher |
Pensoft Publishers |
publishDate |
2021 |
url |
https://doi.org/10.3897/abs.7.e79236 |
genre |
ob river Sibirica |
genre_facet |
ob river Sibirica |
op_source |
Acta Biologica Sibirica, 7, 573-591, (2021-12-23) |
op_relation |
https://doi.org/10.3897/abs.7.e79236 oai:zenodo.org:5811723 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.3897/abs.7.e79236 |
container_title |
Acta Biologica Sibirica |
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7 |
container_start_page |
573 |
op_container_end_page |
591 |
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1810468663482908672 |