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...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Altai State University
2021-12-01
|
| Series: | Acta Biologica Sibirica |
| Subjects: | |
| Online Access: | https://abs.pensoft.net/article/79236/download/pdf/ |
| _version_ | 1828046016863010816 |
|---|---|
| author | Natalya N. Barsukova Olga P. Bazhenova Larisa G. Kolesnichenko |
| author_facet | Natalya N. Barsukova Olga P. Bazhenova Larisa G. Kolesnichenko |
| author_sort | Natalya N. Barsukova |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-10T18:20:18Z |
| format | Article |
| id | doaj.art-84783e5785484aad85032483aecdc93f |
| institution | Directory Open Access Journal |
| issn | 2412-1908 |
| language | English |
| last_indexed | 2024-04-10T18:20:18Z |
| publishDate | 2021-12-01 |
| publisher | Altai State University |
| record_format | Article |
| series | Acta Biologica Sibirica |
| spelling | doaj.art-84783e5785484aad85032483aecdc93f2023-02-02T07:29:32ZengAltai State UniversityActa Biologica Sibirica2412-19082021-12-01757359110.3897/abs.7.e7923679236Phytoplankton as an indicator of the current ecological status of the Ob RiverNatalya N. Barsukova0Olga P. Bazhenova1Larisa G. Kolesnichenko2Omsk State Agrarian University named after P.A. StolypinOmsk State Agrarian University named after P.A. StolypinNational Research Tomsk State UniversityThe 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.https://abs.pensoft.net/article/79236/download/pdf/Dominant complexphytoplanktonspecies compositi |
| spellingShingle | Natalya N. Barsukova Olga P. Bazhenova Larisa G. Kolesnichenko Phytoplankton as an indicator of the current ecological status of the Ob River Acta Biologica Sibirica Dominant complex phytoplankton species compositi |
| title | 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_short | 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 |
| topic | Dominant complex phytoplankton species compositi |
| url | https://abs.pensoft.net/article/79236/download/pdf/ |
| work_keys_str_mv | AT natalyanbarsukova phytoplanktonasanindicatorofthecurrentecologicalstatusoftheobriver AT olgapbazhenova phytoplanktonasanindicatorofthecurrentecologicalstatusoftheobriver AT larisagkolesnichenko phytoplanktonasanindicatorofthecurrentecologicalstatusoftheobriver |