Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century
The first studies of phytoplankton of the River Warta in Poznań (Poland) were carried out in the 20th century (in 1922–23 and 1950–57). In the growing seasons the dominant groups were diatoms and green algae. Cyanobacteria were noted, but they did not have high abundance. The aim of this work is to...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-06-01
|
| Series: | Limnological Review |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/limre-2017-0008 |
| _version_ | 1797327090705498112 |
|---|---|
| author | Mądrecka Beata Szeląg-Wasielewska Elżbieta |
| author_facet | Mądrecka Beata Szeląg-Wasielewska Elżbieta |
| author_sort | Mądrecka Beata |
| collection | DOAJ |
| description | The first studies of phytoplankton of the River Warta in Poznań (Poland) were carried out in the 20th century (in 1922–23 and 1950–57). In the growing seasons the dominant groups were diatoms and green algae. Cyanobacteria were noted, but they did not have high abundance. The aim of this work is to present the phytoplankton research conducted on the River Warta in Poznań in the 21st century (in 2003, 2009, 2010 and 2016). In all years the dominance of diatoms and green algae in terms of biomass was noted. However, in late summer cyanobacteria biomass was high and this group became dominant or co-dominant. Spring blooms were created by unicellular centric diatoms, e.g. Stephanodiscus minutulus and colonial green algae: Coelastrum microporum or Micractinium pusillum. In summer, bloom-forming taxa were unicellular centric diatoms, colonial diatoms: Aulacoseira granulata or Fragilaria crotonensis and cyanobacteria: Aphanizomenon flos-aquae and Woronichinia naegeliana. The occurrence of taxa typical of dam reservoirs and lakes suggests the influence of the Jeziorsko Reservoir on the phytoplankton of the River Warta, but it does not exclude the impact of tributaries and oxbow lakes. The research conducted in the 20th and 21st century show important changes in the taxonomical structure and abundance of phytoplankton. |
| first_indexed | 2024-03-08T06:33:26Z |
| format | Article |
| id | doaj.art-83d595589278457baf81806a38098a71 |
| institution | Directory Open Access Journal |
| issn | 2300-7575 |
| language | English |
| last_indexed | 2024-03-08T06:33:26Z |
| publishDate | 2017-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Limnological Review |
| spelling | doaj.art-83d595589278457baf81806a38098a712024-02-03T11:09:30ZengMDPI AGLimnological Review2300-75752017-06-01172798810.1515/limre-2017-0008limre-2017-0008Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st centuryMądrecka Beata0Szeląg-Wasielewska Elżbieta1Poznań University of Technology, Faculty of Civil and Environmental Engineering, Institute of Environmental Engineering, Berdychowo 4, 60-965Poznań, PolandAdam Mickiewicz University in Poznań, Faculty of Biology, Department of Water Protection, Umultowska 89, 61-614Poznań, PolandThe first studies of phytoplankton of the River Warta in Poznań (Poland) were carried out in the 20th century (in 1922–23 and 1950–57). In the growing seasons the dominant groups were diatoms and green algae. Cyanobacteria were noted, but they did not have high abundance. The aim of this work is to present the phytoplankton research conducted on the River Warta in Poznań in the 21st century (in 2003, 2009, 2010 and 2016). In all years the dominance of diatoms and green algae in terms of biomass was noted. However, in late summer cyanobacteria biomass was high and this group became dominant or co-dominant. Spring blooms were created by unicellular centric diatoms, e.g. Stephanodiscus minutulus and colonial green algae: Coelastrum microporum or Micractinium pusillum. In summer, bloom-forming taxa were unicellular centric diatoms, colonial diatoms: Aulacoseira granulata or Fragilaria crotonensis and cyanobacteria: Aphanizomenon flos-aquae and Woronichinia naegeliana. The occurrence of taxa typical of dam reservoirs and lakes suggests the influence of the Jeziorsko Reservoir on the phytoplankton of the River Warta, but it does not exclude the impact of tributaries and oxbow lakes. The research conducted in the 20th and 21st century show important changes in the taxonomical structure and abundance of phytoplankton.https://doi.org/10.1515/limre-2017-0008eutrophic riverwater bloomcyanobacteriaaphanizomenon flos-aquae |
| spellingShingle | Mądrecka Beata Szeląg-Wasielewska Elżbieta Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century Limnological Review eutrophic river water bloom cyanobacteria aphanizomenon flos-aquae |
| title | Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century |
| title_full | Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century |
| title_fullStr | Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century |
| title_full_unstemmed | Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century |
| title_short | Mass development of phytoplankton in the River Warta in Poznań (Poland) in the 21st century |
| title_sort | mass development of phytoplankton in the river warta in poznan poland in the 21st century |
| topic | eutrophic river water bloom cyanobacteria aphanizomenon flos-aquae |
| url | https://doi.org/10.1515/limre-2017-0008 |
| work_keys_str_mv | AT madreckabeata massdevelopmentofphytoplanktonintheriverwartainpoznanpolandinthe21stcentury AT szelagwasielewskaelzbieta massdevelopmentofphytoplanktonintheriverwartainpoznanpolandinthe21stcentury |