Epiphytic Diatoms along Environmental Gradients in Western European Shallow Lakes
Blanco, Saul; Cejudo-Figueiras, Cristina; Alvarez-Blanco, Irene; van Donk, Ellen; Gross, Elisabeth M.; Hansson, Lars-Anders; Irvine, Kenneth; Jeppesen, Erik; Kairesalo, Timo; Moss, Brian; Noges, Tiina; Becares, Eloy
(2014) CLEAN – Soil, Air, Water, volume 42, issue 3, pp. 229 - 235
(Article)
Abstract
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
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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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Keywords: Bacillariophyta, Bioindication, European shallow lakes, Eutrophication, Total phosphorus, ECOLOGICAL STATUS ASSESSMENTS, WATER-QUALITY, LITTORAL DIATOMS, TROPHIC STATUS, ASSEMBLAGES, NUTRIENT, STATE, RECOMMENDATIONS, COMMUNITIES, INDICATORS
ISSN: 1863-0669
(Peer reviewed)
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