⌘K
Biotope - Typologie Européenne EUNIS
C2.3 - Niveau 3 : Cours d'eau permanents non soumis aux marées, à débit régulier
Description
Permanent water courses with non-turbulent water and their associated animal and microscopic algal pelagic and benthic communities. Slow-flowing rivers, streams, brooks, rivulets and rills; also fast-flowing rivers with laminar flow. The bed is typically composed of sand or mud. Features of the river bed, uncovered by low water or permanently emerging, such as sand or mud islands and bars are treated as the littoral zone (C3). Includes mid and low-altitude streams as defined by the Water Framework Directive.
Taxons (Liens actifs si espèces présentes)
C2.33 - Niveau 4 : Végétations mésotrophes des cours d'eau à débit lent
Description
Euhydrophyte communities of Palaearctic streams moderately rich in nutrients, characterized in particular by Berula erecta (Sium erectum), Mentha aquatica f. submersa, Potamogeton perfoliatus, Potamogeton natans, Groenlandia densa, Ranunculus peltatus, Ranunculus penicillatus, Ranunculus trichophyllus, Ranunculus fluitans, Ranunculus aquatilis, Callitriche truncata, Callitriche stagnalis, Nymphaea alba, Myriophyllum spicatum.
Taxons (Liens actifs si espèces présentes)
Berula erecta (Huds.) Coville, 1893 ( Esp. caract. )
Callitriche stagnalis Scop., 1772 ( Esp. caract. )
Callitriche truncata Guss., 1826 ( Esp. caract. )
Groenlandia densa (L.) Fourr., 1869 ( Esp. caract. )
Myriophyllum spicatum L., 1753 ( Esp. caract. )
Nymphaea alba L., 1753 ( Esp. caract. )
Potamogeton natans L., 1753 ( Esp. caract. )
Potamogeton perfoliatus L., 1753 ( Esp. caract. )
Ranunculus aquatilis L., 1753 ( Esp. caract. )
Ranunculus fluitans Lam., 1779 ( Esp. caract. )
Ranunculus peltatus Moench, 1794 ( Esp. caract. )
Ranunculus penicillatus (Dumort.) Bab., 1874 ( Esp. caract. )
Ranunculus trichophyllus Chaix, 1785 ( Esp. caract. )
Sium erectum Huds., 1762 ( Esp. caract. )
Callitriche stagnalis Scop., 1772 ( Esp. caract. )
Callitriche truncata Guss., 1826 ( Esp. caract. )
Groenlandia densa (L.) Fourr., 1869 ( Esp. caract. )
Myriophyllum spicatum L., 1753 ( Esp. caract. )
Nymphaea alba L., 1753 ( Esp. caract. )
Potamogeton natans L., 1753 ( Esp. caract. )
Potamogeton perfoliatus L., 1753 ( Esp. caract. )
Ranunculus aquatilis L., 1753 ( Esp. caract. )
Ranunculus fluitans Lam., 1779 ( Esp. caract. )
Ranunculus peltatus Moench, 1794 ( Esp. caract. )
Ranunculus penicillatus (Dumort.) Bab., 1874 ( Esp. caract. )
Ranunculus trichophyllus Chaix, 1785 ( Esp. caract. )
Sium erectum Huds., 1762 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte
— nb espèces indicatrices par classe
Humidité
Réaction du sol (pH)
Nutriments
Lumière
Matière organique
Granulométrie
Salinité