Umeå universitets logga

umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Phytoplankton biomass in northern lakes reveals a complex response to global change
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.ORCID-id: 0000-0001-5102-4289
Finnish Environment Institute (SYKE), Helsinki, Finland.
Department of Physical and Environmental Sciences, University of Toronto, ON, Toronto, Canada.
Visa övriga samt affilieringar
2024 (Engelska)Ingår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 940, artikel-id 173570Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Global change may introduce fundamental alterations in phytoplankton biomass and community structure that can alter the productivity of northern lakes. In this study, we utilized Swedish and Finnish monitoring data from lakes that are spatially (135 lakes) and temporally (1995-2019, 110 lakes) extensive to assess how phytoplankton biomass (PB) of dominant phytoplankton groups related to changes in water temperature, pH and key nutrients [total phosphorus (TP), total nitrogen (TN), total organic carbon (TOC), iron (Fe)] along spatial (Fennoscandia) and temporal (25 years) gradients. Using a machine learning approach, we found that TP was the most important determinant of total PB and biomass of a specific species of Raphidophyceae - Gonyostomum semen - and Cyanobacteria (both typically with adverse impacts on food-webs and water quality) in spatial analyses, while Fe and pH were second in importance for G. semen and TN and pH were second and third in importance for Cyanobacteria. However, in temporal analyses, decreasing Fe and increasing pH and TOC were associated with a decrease in G. semen and an increase in Cyanobacteria. In addition, in many lakes increasing TOC seemed to have generated browning to an extent that significantly reduced PB. The identified discrepancy between the spatial and temporal results suggests that substitutions of data for space-for-time may not be adequate to characterize long-term effects of global change on phytoplankton. Further, we found that total PB exhibited contrasting temporal trends (increasing in northern- and decreasing in southern Fennoscandia), with the decline in total PB being more pronounced than the increase. Among phytoplankton, G. semen biomass showed the strongest decline, while cyanobacterial biomass showed the strongest increase over 25 years. Our findings suggest that progressing browning and changes in Fe and pH promote significant temporal changes in PB and shifts in phytoplankton community structures in northern lakes.

Ort, förlag, år, upplaga, sidor
Elsevier, 2024. Vol. 940, artikel-id 173570
Nyckelord [en]
Global change, Lakes, Phytoplankton, Spatial, Temporal
Nationell ämneskategori
Ekologi
Identifikatorer
URN: urn:nbn:se:umu:diva-225972DOI: 10.1016/j.scitotenv.2024.173570PubMedID: 38825201Scopus ID: 2-s2.0-85194876061OAI: oai:DiVA.org:umu-225972DiVA, id: diva2:1867864
Forskningsfinansiär
Vetenskapsrådet, 2020-03224Carl Tryggers stiftelse för vetenskaplig forskning , CTS 21:1145Forskningsrådet Formas, 2021-01062Tillgänglig från: 2024-06-11 Skapad: 2024-06-11 Senast uppdaterad: 2024-06-11Bibliografiskt granskad

Open Access i DiVA

fulltext(6842 kB)37 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 6842 kBChecksumma SHA-512
dc43492dfc8536f46e17ab7374bdc59e07613283abd250ffba02c17a3dd496ad79ff74a7b9a3b550fe8034ac2da3c90e51c54b1105102096b41f187be1688193
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextPubMedScopus

Person

Palstev, AlekseyBergström, Ann-KristinJonsson, AndersGeibrink, Erik

Sök vidare i DiVA

Av författaren/redaktören
Palstev, AlekseyBergström, Ann-KristinJonsson, AndersGeibrink, Erik
Av organisationen
Institutionen för ekologi, miljö och geovetenskap
I samma tidskrift
Science of the Total Environment
Ekologi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 37 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 334 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf