⌘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)
C2.28 - Niveau 4 : Végétations eutrophes des cours d'eau à débit rapide
Description
Euhydrophyte communities of Palaearctic streams rich in nutrients, characterized in particular by Ranunculus fluitans, Ranunculus circinatus, Zannichellia palustris f. fluviatilis, Potamogeton nodosus, Potamogeton lucens, Potamogeton pectinatus, Potamogeton crispus, Sparganium emersum, Sagittaria sagittifolia, Callitriche obtusangula, Nuphar lutea and the moss Fontinalis antipyretica.
Taxons (Liens actifs si espèces présentes)
Callitriche obtusangula Le Gall, 1852 ( Esp. caract. )
Fontinalis antipyretica Hedw., 1801 ( Esp. caract. )
Nuphar lutea (L.) Sm., 1809 ( Esp. caract. )
Potamogeton crispus L., 1753 ( Esp. caract. )
Potamogeton lucens L., 1753 ( Esp. caract. )
Potamogeton nodosus Poir., 1816 ( Esp. caract. )
Potamogeton pectinatus L., 1753 ( Esp. caract. )
Ranunculus circinatus Sibth., 1794 ( Esp. caract. )
Ranunculus fluitans Lam., 1779 ( Esp. caract. )
Sagittaria sagittifolia L., 1753 ( Esp. caract. )
Sparganium emersum Rehmann, 1871 ( Esp. caract. )
Fontinalis antipyretica Hedw., 1801 ( Esp. caract. )
Nuphar lutea (L.) Sm., 1809 ( Esp. caract. )
Potamogeton crispus L., 1753 ( Esp. caract. )
Potamogeton lucens L., 1753 ( Esp. caract. )
Potamogeton nodosus Poir., 1816 ( Esp. caract. )
Potamogeton pectinatus L., 1753 ( Esp. caract. )
Ranunculus circinatus Sibth., 1794 ( Esp. caract. )
Ranunculus fluitans Lam., 1779 ( Esp. caract. )
Sagittaria sagittifolia L., 1753 ( Esp. caract. )
Sparganium emersum Rehmann, 1871 ( 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