Book chapter
F2.4 Freeze-thaw freshwater lakes
The IUCN global Ecosystem Typology 2.0: Descriptive profiles for biomes and ecosystem functional groups, p.114
IUCN
2020
Abstract
The majority of surface of these lakes is frozen for at least a month in most years. Their varied origins (tectonic, riverine, fluvioglacial), size and depth affect composition and function. Allochthonous and autochthonous energy sources vary with lake and catchment features. Productivity is highly seasonal, sustained in winter largely by the metabolism of microbial photoautotrophs, chemautotrophs and zooplankton that remain active under low light, nutrients, and temperatures. Spring thaw initiates a seasonal succession, increasing productivity and re establishing complex trophic networks, depending on lake area, depth, connectivity, and nutrient availability.
Details
- Title
- F2.4 Freeze-thaw freshwater lakes
- Authors/Creators
- Richard Kingsford (Author)Stefan Bertilsson (Author)L Jackson (Author)Belinda J Robson (Author) - Murdoch University, Centre for Sustainable Aquatic EcosystemsDavid Keith (Author)
- Contributors
- D. A. Keith (Editor)J.R. Ferrer-Paris (Editor)E. Nicholson (Editor)R.T. Kingsford (Editor)
- Publication Details
- The IUCN global Ecosystem Typology 2.0: Descriptive profiles for biomes and ecosystem functional groups, p.114
- Publisher
- IUCN
- Identifiers
- 991005555066707891
- Copyright
- © 2020 IUCN, International Union for Conservation of Nature and Natural Resources
- Murdoch Affiliation
- Centre for Sustainable Aquatic Ecosystems; School of Environmental and Conservation Sciences
- Language
- English
- Resource Type
- Book chapter
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