HydroBASINS lev08 watershed · #2080576260
Bassin de l'Agoût
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 3 administrative regions : Aveyron, Hérault, Tarn
Sub-basin area
513,5km²
Upstream area
513,5km²
Discharge
8,65m³/s
Mean elev.
852m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 349.3 km²67.9% of basin
- 165.2 km²32.1% of basin
- 0.0 km²0.0% of basin
24 communes (GADM L5)Available for FRA, RWA
- La Salvetat-sur-Agout81.66 km²91% commune
- Murat-sur-Vèbre61.78 km²65% commune
- Castelnau-de-Brassac60.13 km²81% commune
- Nages49.69 km²100% commune
- Lacaune43.00 km²47% commune
- Fraisse-sur-Agout41.95 km²72% commune
- Cambon-et-Salvergues39.13 km²78% commune
- Brassac22.55 km²98% commune
- Lamontélarié21.06 km²100% commune
- Le Margnès17.99 km²100% commune
- Le Bez17.05 km²53% commune
- Anglès16.92 km²20% commune
- Moulin-Mage13.84 km²91% commune
- Barre11.83 km²79% commune
- Ferrières9.93 km²84% commune
- Lacrouzette2.56 km²9% commune
- Le Soulié1.91 km²5% commune
- Vabre0.78 km²3% commune
- Rosis0.28 km²1% commune
- Saint-Julien0.23 km²1% commune
- Espérausses0.11 km²1% commune
- Lasfaillades0.07 km²1% commune
- Murasson0.00 km²0% commune
- Castanet-le-Haut0.00 km²0% commune
16 intersecting protected areas
Haut-Languedoc
IUCN VRegional Nature Park
514.46 km² overlap
Tourbières du Margnès
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.21 km² overlap
Vallées du Tarn, de l'Aveyron, du Viaur, de l'Agout et du Gijou
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.46 km² overlap
Le Montalet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.80 km² overlap
Montagne de l'Espinouse et du Caroux
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.93 km² overlap
Le Caroux et l'Espinouse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.42 km² overlap
Le Caroux-Espinouse
IUCN IVNational Hunting and Wildlife Reserve
1.86 km² overlap
tourbiere de canroute
IUCN IVLand acquired by a regional conservatory of natural areas
0.61 km² overlap
sagnes de rieupeyroux
IUCN IVLand acquired by a regional conservatory of natural areas
0.55 km² overlap
7 more protected areassorted by overlap area
Espinouse
IUCN IVForest Managed Biological Reserve
0.34 km² overlap
Forest Managed Biological Reserve
0.16 km² overlap
sagne de secun
IUCN IVLand acquired by a regional conservatory of natural areas
0.07 km² overlap
sagne de moulin haut
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
sagne d\'oules
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
sagne de provencas
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Grands Causses
IUCN VRegional Nature Park
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 694 distinct species · 250 886 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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'Agoût : 20 espèces reliées par 156 interactions GloBI sur 6 types (connectance 26.2%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,2°C
Annual rain
863mm
Moisture idx (CMI)
-0,02
Runoff
532mm/an
PET
881mm
AET
667mm
Mean slope
8,7°
Water table
435cm
Forest
86%
Crops
1%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)