uu.seUppsala University Publications
Change search
Refine search result
1 - 1 of 1
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Weyhenmeyer, Gesa A
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
    Broberg, Nils
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
    Increasing algal biomass in Lake Vänern despite decreasing phosphorus concentrations: A lake-specific phenomenon?2014In: Aquatic Ecosystem Health & Management, ISSN 1463-4988, E-ISSN 1539-4077, Vol. 17, no 4, p. 341-348Article in journal (Refereed)
    Abstract [en]

    Algal blooms in lake waters are frequently associated with elevated nutrient levels, in particular phosphorus. Here we show, with long-term data from Sweden's largest lake, Lake Vanern, that total phytoplankton biomass has significantly increased since the 1980s at the same time as total phosphorus and inorganic nitrogen concentrations have significantly decreased (non-parametric Mann-Kendall test: P < 0.01). Lake Vanern was not the only lake showing such a pattern: evaluating long-term data from 13 small oligotrophic reference lakes revealed the same pattern. Other synchronous changes observed in Sweden's oligotrophic lakes included strongly decreasing sulfate concentrations and increasing water temperatures. We found that alkalinity, water temperatures, silica and sulfate concentrations were the strongest predictors for total phytoplankton biomass at all three sites in Lake Vanern when we used partial least squares regression models with 11 input variables. From our results, we suggest that decreasing acidity in combination with increasing water temperatures has been more important for phytoplankton growth than total phosphorous and nitrogen concentrations. Thus, we conclude that phytoplankton biomass in oligotrophic small and large lakes is strongly associated with climate and atmospheric depositional changes, and consequently needs to be managed beyond catchment scales.

1 - 1 of 1
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf