HydroBASINS lev08 watershed · #2080583010
Bassin de l'Aude
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Aude
Sub-basin area
21,5km²
Upstream area
4 634km²
Discharge
82m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Orbieu752 km²
- Bassin de l'Aude744 km²
11 communes (GADM L5)Available for FRA, RWA
- Marcorignan5.46 km²98% commune
- Moussan3.88 km²26% commune
- Saint-Marcel-sur-Aude3.75 km²44% commune
- Saint-Nazaire-d'Aude2.95 km²34% commune
- Narbonne2.93 km²2% commune
- Névian2.00 km²14% commune
- Montredon-des-Corbières0.36 km²2% commune
- Ginestas0.14 km²1% commune
- Raissac-d'Aude0.09 km²1% commune
- Mirepeisset0.02 km²0% commune
- Sallèles-d'Aude0.00 km²0% commune
2 intersecting protected areas
Cours inférieur de l'Aude
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.97 km² overlap
Vallée de l'Orbieu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 324 distinct species · 12 615 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Bassin de l'Aude : 38 espèces + 3 bulles famille, 65 interactions GloBI documentées sur 4 types (connectance 7.9%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
14,7°C
Annual rain
641mm
Moisture idx (CMI)
-0,37
Runoff
509mm/an
PET
1 014mm
AET
543mm
Mean slope
2,1°
Water table
130cm
Forest
0%
Crops
36%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)