Spatio-temporal development of the aquatic vegetation of the Alzette river (Grand-Duche of Luxembourg)
1998
Spahn, P. (CRP-Centre universitaire, Luxembourg (Luxembourg). Unite hydrobiologie et environnement) | Hoffmann, L.
Physico-chemical parameters (pH, conductivity, NO2, NO3, NH4, Ptotal, o-PO4, BOD5) and the development of aquatic macrophytes were monitored during one year at ten stations along the Alzette river on Luxembourgish territory. The river is characterised by a high organic pollution load in the first half of its course with a subsequent improvement downstream as well as by high nutrient inputs from waste water treatment plants. Potamogeton pectinatus is the dominant aquatic macrophyte in the upper parts of the river, whereas downstream it is progressively replaced by the green alga Cladophora glomerata. The highest biomasses occur from June to September.
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