Journal
CLEAN-SOIL AIR WATER
Volume 42, Issue 3, Pages 229-235Publisher
WILEY
DOI: 10.1002/clen.201200630
Keywords
Bacillariophyta; Bioindication; European shallow lakes; Eutrophication; Total phosphorus
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Funding
- European Union [EVK1-1999-00261]
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Diatom-based assays have been successfully associated worldwide with the tropic status of lakes. Several studies have demonstrated a correlation between epiphytic diatoms and nutrient load in shallow lakes and wetlands. We examine the relative importance of environmental factors in explaining the structure of epiphytic diatom communities in a set of Western European shallow lakes. The effects of lake physical/chemical, morphometric, and geographical variables on diatom assemblages were tested using distance-based, canonical correspondence and regression analyses. Our results show that epiphytic diatom communities respond, mainly to physical/chemical variables, overriding the effects of lake depth, size, and location. The clustering of studied systems based along a total phosphorus concentration gradient concurs with previous classification of diatom taxa and nutrient state. Assessment of epiphytic diatoms provided a potential method for shallow lake classification.
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