Ruisseau
La Grande Douve
Crosses 1 administrative regions : Loire-Atlantique
Total length
4km
Max discharge
0,5m³/s
Max Strahler
1
Segments matched
1
River geography1 admin regions · 3 communes
1 administrative regions crossed (GADM L2)
- Loire-AtlantiquePays de la Loire · France7.4 kmin this dpt
3 communes (L5)For countries with L5
- Nort-sur-Erdre7.35 km
- Casson0.00 km
- Héric0.00 km
3 intersecting protected areas
Marais de l'Erdre
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Marais de l'Erdre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
marais de l\'erdre
IUCN IVLand acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
570 distinct species · 6 082 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydrology (HydroRIVERS v10)
Total length
4km
Max discharge
0,5m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.