HydroBASINS lev08 watershed · #2080020620
Bassin du Moron
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 : Gironde
Sub-basin area
551km²
Upstream area
23 784km²
Discharge
462,11m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de la Dordogne2385 km²
- Bassin de la Barbanne87 km²
1 dept-equivalent regions (GADM L2)
- 552.2 km²100.0% of basin
79 communes (GADM L5)Available for FRA, RWA
- Saint-Christoly-de-Blaye27.24 km²96% commune
- Saint-Loubès24.38 km²94% commune
- Saint-Savin23.72 km²69% commune
- Saint-André-de-Cubzac23.60 km²100% commune
- Cézac17.81 km²94% commune
- Beychac-et-Caillau16.06 km²100% commune
- Izon15.93 km²100% commune
- Saint-Sulpice-et-Cameyrac15.01 km²100% commune
- Vayres14.24 km²100% commune
- Saint-Vincent-de-Paul13.54 km²100% commune
- Civrac-de-Blaye13.35 km²100% commune
- Ambarès-et-Lagrave13.23 km²53% commune
- Salignac12.98 km²97% commune
- Sallebœuf12.82 km²86% commune
- Pugnac12.64 km²94% commune
- Saint-Germain-du-Puch12.29 km²100% commune
- Baron10.98 km²99% commune
- Pompignac10.92 km²95% commune
- Peujard10.87 km²100% commune
- Lugon-et-l'Île-du-Carnay10.82 km²100% commune
- Prignac-et-Marcamps10.56 km²100% commune
- Cubnezais10.28 km²100% commune
- Arveyres10.22 km²58% commune
- Fronsac9.52 km²62% commune
- La Lande-de-Fronsac8.99 km²100% commune
- Saint-Romain-la-Virvée8.62 km²100% commune
- Montussan8.61 km²100% commune
- La Sauve8.58 km²46% commune
- Cubzac-les-Ponts8.30 km²100% commune
- Ambès7.94 km²33% commune
- Saint-Laurent-d'Arce7.80 km²100% commune
- Aubie-et-Espessas7.51 km²100% commune
- Teuillac7.29 km²96% commune
- Tauriac7.14 km²65% commune
- Marsas5.93 km²71% commune
- Saint-Mariens5.83 km²49% commune
- Cursan5.78 km²100% commune
- Asques5.62 km²100% commune
- Saint-Gervais5.55 km²100% commune
- Berson5.42 km²31% commune
- Saint-Vivien-de-Blaye5.41 km²100% commune
- Gauriaguet5.37 km²100% commune
- Saint-Michel-de-Fronsac5.12 km²99% commune
- Camarsac5.02 km²100% commune
- Villegouge5.01 km²36% commune
- Croignon4.57 km²100% commune
- Sadirac4.47 km²23% commune
- Vérac4.20 km²49% commune
- Saint-Germain-de-la-Rivière3.90 km²100% commune
- Cadillac-en-Fronsadais3.87 km²100% commune
- Le Pout3.77 km²100% commune
- Virsac3.75 km²100% commune
- Nérigean3.67 km²36% commune
- Loupes3.09 km²60% commune
- La Rivière3.02 km²100% commune
- Créon2.78 km²35% commune
- Bourg1.95 km²14% commune
- Saint-Aignan1.89 km²69% commune
- Saint-Genès-de-Fronsac1.63 km²25% commune
- Fargues-Saint-Hilaire1.59 km²22% commune
- Saint-Yzan-de-Soudiac1.41 km²12% commune
- Tarnès1.39 km²100% commune
- Camiac-et-Saint-Denis1.18 km²18% commune
- Cavignac1.16 km²17% commune
- Saugon1.10 km²7% commune
- Saint-Louis-de-Montferrand1.00 km²9% commune
- Saint-Trojan0.57 km²18% commune
- Yvrac0.42 km²5% commune
- Marcenais0.39 km²4% commune
- Tresses0.35 km²3% commune
- Libourne0.29 km²1% commune
- Bonnetan0.25 km²6% commune
- Saint-Quentin-de-Baron0.21 km²2% commune
- Mombrier0.19 km²4% commune
- Saint-Antoine0.16 km²100% commune
- Saint-Girons-d'Aiguevives0.11 km²1% commune
- Sainte-Eulalie0.03 km²0% commune
- Cadarsac0.03 km²1% commune
- Mouillac0.00 km²0% commune
12 intersecting protected areas
La Dordogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.24 km² overlap
Marais du Bec d'Ambès
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.04 km² overlap
Palus de Saint-Loubes et d'Izon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.37 km² overlap
Vallée et palus du Moron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.46 km² overlap
Carrières souterraines de Villegouge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.10 km² overlap
Réseau hydrographique du Gestas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.04 km² overlap
marais de la virvee
IUCN IVLand acquired by a regional conservatory of natural areas
0.57 km² overlap
Vallée de l'Isle de Périgueux à sa confluence avec la Dordogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.35 km² overlap
prairies de bourg
IUCN IVLand acquired by a regional conservatory of natural areas
0.12 km² overlap
3 more protected areassorted by overlap area
coteau d\'asques
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
carriere de meyney
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
carriere de saute-qui-peut
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 722 distinct species · 254 552 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 Bassin du Moron : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 147 interactions GloBI sur 5 types (connectance 18.8%, filtre Serrano α=0.2). 10 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°
12,6°C
Annual rain
906mm
Moisture idx (CMI)
-0,06
Runoff
503mm/an
PET
959mm
AET
672mm
Mean slope
1,3°
Water table
79cm
Forest
8%
Crops
29%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)