The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Predicted warming and browning affect timing and magnitude of plankton phenological events in lakes: a mesocosm study

På svenska

Author

Summary, in English

1. Aquatic ecosystems in Northern Europe are expected to face increases in temperature and water colour (TB) in future. While effects of these factors have been studied separately, it is unknown whether and how a combination of them might affect phenological events and trophic interactions. 2. In a mesocosm study, we combined both factors to create conditions expected to arise during the coming century. We focused on quantifying effects on timing and magnitude of plankton spring phenological events and identifying possible mismatches between resources (phytoplankton) and consumers (zooplankton). 3. We found that the increases in TB had important effects on timing and abundance of different plankton groups. While increased temperature led to an earlier peak in phytoplankton and zooplankton and a change in the relative timing of different zooplankton groups, increased water colour reduced chlorophyll-a concentrations. 4. Increased TB together benefitted cladocerans and calanoid copepods and led to stronger top-down control of algae by zooplankton. There was no sign of a mismatch between primary producers and grazers as reported from other studies. 5. Our results point towards an earlier onset of plankton spring growth in shallow lakes in future with a stronger top-down control of phytoplankton by zooplankton grazers.

Publishing year

2012

Language

English

Pages

684-695

Publication/Series

Freshwater Biology

Volume

57

Issue

4

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Ecology

Keywords

  • climate change
  • lakes
  • phenology
  • phytoplankton
  • spring
  • temperature
  • water colour
  • zooplankton

Status

Published

Research group

  • Aquatic Ecology

ISBN/ISSN/Other

  • ISSN: 0046-5070