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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Online Access: | https://doi.org/10.3897/abs.7.e79236 https://abs.pensoft.net/article/79236/ |
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ftpensoft:10.3897/abs.7.e79236 2023-05-15T17:48:43+02:00 Phytoplankton as an indicator of the current ecological status of the Ob River Barsukova,Natalya Bazhenova,Olga Kolesnichenko,Larisa 2021 text/html https://doi.org/10.3897/abs.7.e79236 https://abs.pensoft.net/article/79236/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/2412-1908 info:eu-repo/semantics/openAccess Acta Biologica Sibirica 7: 573-591 Dominant complex phytoplankton species composition taxonomic structure trophic status Research Article 2021 ftpensoft https://doi.org/10.3897/abs.7.e79236 2022-03-01T12:49:48Z 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 Pensoft Publishers Salekhard ENVELOPE(66.602,66.602,66.530,66.530) Acta Biologica Sibirica 7 573 591 |
institution |
Open Polar |
collection |
Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
Dominant complex phytoplankton species composition taxonomic structure trophic status |
spellingShingle |
Dominant complex phytoplankton species composition taxonomic structure trophic status Barsukova,Natalya Bazhenova,Olga Kolesnichenko,Larisa 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 Bazhenova,Olga Kolesnichenko,Larisa |
author_facet |
Barsukova,Natalya Bazhenova,Olga Kolesnichenko,Larisa |
author_sort |
Barsukova,Natalya |
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 https://abs.pensoft.net/article/79236/ |
long_lat |
ENVELOPE(66.602,66.602,66.530,66.530) |
geographic |
Salekhard |
geographic_facet |
Salekhard |
genre |
ob river Sibirica |
genre_facet |
ob river Sibirica |
op_source |
Acta Biologica Sibirica 7: 573-591 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/2412-1908 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3897/abs.7.e79236 |
container_title |
Acta Biologica Sibirica |
container_volume |
7 |
container_start_page |
573 |
op_container_end_page |
591 |
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1766154873048399872 |