⌘K
Biotope - Typologie Européenne EUNIS
C2.2 - Niveau 3 : Cours d'eau permanents, non soumis aux marées, à écoulement turbulent et rapide
Description
Permanent water courses with fast-flowing turbulent water and their associated animal and microscopic algal pelagic and benthic communities. Rivers, streams, brooks, rivulets, rills, torrents, waterfalls, cascades and rapids are included. The bed is typically composed of rocks, stones or gravel with only occasional sandy and silty patches. Features of the river bed, uncovered by low water or permanently emerging, such as gravel or rock islands and bars are treated as the littoral zone (C3). Includes high, mid and low-altitude, usually small to medium-sized streams as defined by the Water Framework Directive.
Taxons (Liens actifs si espèces présentes)
C2.27 - Niveau 4 : Végétations mésotrophes des cours d'eau à débit rapide
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