uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct 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
Combining limnology and palaeolimnology to investigate recent regime shifts in a shallow, eutrophic lake
Show others and affiliations
2014 (English)In: Journal of Paleolimnology, ISSN 0921-2728, E-ISSN 1573-0417, Vol. 51, no 3, 437-448 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we demonstrate that an integrated approach, combining palaeolimnological records and limnological monitoring data, can increase our understanding of changing ecological patterns and processes in shallow lakes. We focused on recent regime shifts in shallow Lake Krankesjon, southern Sweden, including the collapse of the clear-water state in 1975 and its subsequent recovery in the late 1980s. We used diatom, hydrocarbon and biogenic silica sediment records, in concert with limnological data sets on nutrient concentrations, water clarity, chlorophyll-a and water depth, to investigate the shifts. The shift from clear to turbid conditions was abrupt and occurred over 1 to 2 years, whereas recovery of the clear-water state was more gradual, taking 4-5 years. In 1978, shortly after the first regime shift in water clarity, the diatom community underwent a significant shift. It became less diverse, with decreased abundance of epiphytic and planktonic taxa. Despite rising phosphorus concentrations and lower abundance of submerged macrophytes, Lake Krankesjon has remained in the clear-water state over the past 20 years, although this state seems to be increasingly unstable and susceptible to collapse. The complex reactions of the entire lake ecosystem to major changes in lake-water clarity, as shown by the palaeolimnological variables investigated in this study, emphasize the importance of careful lake and catchment management if a stable, clear-water state is desired.

Place, publisher, year, edition, pages
2014. Vol. 51, no 3, 437-448 p.
Keyword [en]
Regime shift, Monitoring, Ecosystem, Alternative stable state, Diatoms, Hydrocarbons
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-220778DOI: 10.1007/s10933-014-9767-5ISI: 000331105500008OAI: oai:DiVA.org:uu-220778DiVA: diva2:707337
Available from: 2014-03-24 Created: 2014-03-20 Last updated: 2017-12-05Bibliographically approved

Open Access in DiVA

fulltext(998 kB)245 downloads
File information
File name FULLTEXT01.pdfFile size 998 kBChecksum SHA-512
f8f63582d5919d22fbc95ea969ce3a2443235ee4145e7f0fc5746686d24bb4bf71e59b967238d1e29e061492d208203379801f0905a49e19a6997195cf037252
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Authority records BETA

Choudhary, Preetam

Search in DiVA

By author/editor
Choudhary, Preetam
By organisation
Limnology
In the same journal
Journal of Paleolimnology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 245 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 494 hits
CiteExportLink to record
Permanent link

Direct 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