Dystrophy (ecology)
In ecology , especially in limnology , dystrophy describes the water status of nutrient-poor , humic acid -rich and lime-free waters, which are accordingly referred to as dystrophic waters. Waters of this type are colored brown due to the high proportion of dissolved humus substances and are accordingly also referred to as brown water lakes.
This category mainly includes bog waters and bodies of water in swamp forests with a high proportion of leaves, the humus substances come from the bog-rich environment of the water bodies. There is very little phytoplankton to be found in dystrophic lakes , but they are rich in zooplankton ; Due to the oxygen-poor deep water, the bottom fauna is also very species-poor.
The typical sediment form of these waters is the Dy or peat mud.
supporting documents
- ^ A b Winfried Lampert, Ulrich Sommer : Limnoökologie. Georg Thieme Verlag Stuttgart 1993; P. 375. ISBN 3-13-786401-1
- ↑ a b c Keyword "brown water lakes." In: Herder-Lexikon der Biologie. Spectrum Akademischer Verlag GmbH, Heidelberg 2003. ISBN 3-8274-0354-5
- ↑ Jürgen Schwoerbel: Introduction to Limnology. Gustav Fischer Verlag, Stuttgart, Jena 1993.