Ruisseau
Chenal du Douhet
Crosses 1 administrative regions : Charente-Maritime
Total length
4km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
River geography1 admin regions · 2 communes
1 administrative regions crossed (GADM L2)
- Charente-MaritimeNouvelle-Aquitaine · France1.2 kmin this dpt
2 communes (L5)For countries with L5
- Saint-Georges-d'Oléron1.22 km
- La Brée-les-Bains0.00 km
10 intersecting protected areas
Pertuis charentais - Rochebonne
IUCN Not ReportedMarine Protected Area (OSPAR)
Pertuis charentais - Rochebonne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Marine Nature Park
Pertuis Charentais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Pertuis charentais
IUCN Not ReportedMarine Protected Area (OSPAR)
Marais de Brouage (et marais nord d'Oléron)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Marais de Brouage-Oléron
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Dunes et forêts littorales de l'ile d'Oléron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Marais du douhet
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1 more protected areassorted by area
Foret briquet
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
2 069 distinct species · 20 668 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Chenal du Douhet : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
4km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.