HydroBASINS lev08 watershed · #2080016680
Bassin de l'Hérault
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 4 administrative regions : Aveyron, Gard, Hérault, Lozère
Sub-basin area
2 621,2km²
Upstream area
2 621,2km²
Discharge
63,78m³/s
Mean elev.
368m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 2002.4 km²76.2% of basin
- 570.2 km²21.7% of basin
- 50.2 km²1.9% of basin
- 3.4 km²0.1% of basin
189 communes (GADM L5)Available for FRA, RWA
- Valleraugue72.96 km²92% commune
- Saint-Maurice-Navacelles69.66 km²100% commune
- Causse-de-la-Selle45.44 km²100% commune
- Brissac44.67 km²100% commune
- La Vacquerie-et-Saint-Martin-de-42.95 km²100% commune
- Saint-Guilhem-le-Désert38.78 km²100% commune
- Campestre-et-Luc37.97 km²100% commune
- Aumelas37.71 km²64% commune
- Blandas37.68 km²100% commune
- Montdardier35.09 km²100% commune
- Florensac33.93 km²95% commune
- Clermont-l'Hérault33.20 km²100% commune
- Saint-Martin-de-Londres33.08 km²85% commune
- Pégairolles-de-l'Escalette32.43 km²100% commune
- Sumène32.31 km²89% commune
- Aniane30.67 km²100% commune
- Rogues30.63 km²100% commune
- Puéchabon30.56 km²98% commune
- Gignac30.49 km²100% commune
- Pézenas30.10 km²100% commune
- Gorniès29.40 km²100% commune
- Cabrières29.22 km²100% commune
- Notre-Dame-de-Londres29.01 km²100% commune
- Servian28.99 km²70% commune
- Alzon28.67 km²100% commune
- Le Bosc28.13 km²100% commune
- Saint-Privat27.28 km²100% commune
- Sauclières26.93 km²71% commune
- Lauroux26.29 km²98% commune
- Saint-Michel25.75 km²100% commune
- Bessan25.52 km²92% commune
- Caux24.77 km²100% commune
- Pézènes-les-Mines24.57 km²90% commune
- Agde23.46 km²46% commune
- Les Rives23.36 km²98% commune
- Montpeyroux23.24 km²100% commune
- Moulès-et-Baucels23.11 km²100% commune
- Lodève22.64 km²99% commune
- Le Caylar22.50 km²100% commune
- Saint-Pargoire22.26 km²90% commune
- Rouet22.16 km²93% commune
- Saint-André-de-Majencoules22.15 km²100% commune
- Le Cros22.06 km²100% commune
- Octon21.56 km²100% commune
- Vissec21.55 km²100% commune
- La Couvertoirade21.09 km²33% commune
- Sorbs20.49 km²100% commune
- Saint-André-de-Sangonis20.13 km²100% commune
- Bréau-et-Salagosse19.95 km²80% commune
- Aumessas19.87 km²94% commune
- Arrigas19.80 km²100% commune
- Arphy19.52 km²94% commune
- Montagnac19.43 km²49% commune
- Argelliers19.11 km²38% commune
- Saint-Étienne-de-Gourgas18.86 km²100% commune
- Saint-Thibéry18.70 km²100% commune
- Saint-Pierre-de-la-Fage18.42 km²100% commune
- Saint-Bauzille-de-Putois18.34 km²100% commune
- Alignan-du-Vent17.75 km²100% commune
- Fontès17.73 km²100% commune
- Les Plans17.72 km²98% commune
- Saint-Martial17.20 km²99% commune
- Le Vigan17.19 km²100% commune
- Saint-Jean-de-la-Blaquière17.18 km²100% commune
- Roujan16.91 km²100% commune
- Saint-Jean-de-Buèges16.73 km²100% commune
- Notre-Dame-de-la-Rouvière16.49 km²99% commune
- Vendémian16.47 km²100% commune
- Castelnau-de-Guers16.41 km²73% commune
- Mas-de-Londres16.26 km²84% commune
- Ferrières-les-Verreries16.25 km²93% commune
- Gabian16.08 km²99% commune
- Aspiran16.08 km²100% commune
- Tourbes15.99 km²100% commune
- Montoulieu15.85 km²100% commune
- Le Puech15.73 km²100% commune
- Saint-André-de-Buèges14.81 km²100% commune
- Mandagout14.78 km²100% commune
- Montesquieu14.53 km²100% commune
- Le Pouget14.42 km²100% commune
- Mourèze13.96 km²100% commune
- Saint-Jean-de-Fos13.86 km²100% commune
- Saint-Laurent-le-Minier13.37 km²100% commune
- Saint-Roman-de-Codières13.19 km²71% commune
- Saint-Pons-de-Mauchiens13.05 km²96% commune
- Pégairolles-de-Buèges12.98 km²100% commune
- Montblanc12.41 km²45% commune
- Soubès12.36 km²100% commune
- Saint-Félix-de-l'Héras12.22 km²100% commune
- Paulhan11.38 km²100% commune
- Roquedur11.38 km²100% commune
- Cazilhac11.38 km²100% commune
- Vailhan11.03 km²100% commune
- Soumont10.85 km²100% commune
- Neffiès10.78 km²100% commune
- Péret10.77 km²100% commune
- Brenas10.31 km²100% commune
- Pouzolles10.21 km²100% commune
- Nébian9.93 km²100% commune
- Olmet-et-Villecun9.66 km²100% commune
- Saint-Saturnin-de-Lucian9.60 km²100% commune
- Salasc9.14 km²100% commune
- Nizas9.13 km²100% commune
- Lavalette9.04 km²99% commune
- Saint-Julien-de-la-Nef8.69 km²100% commune
- Saint-Bresson8.56 km²100% commune
- Saint-Bauzille-de-la-Sylve8.27 km²100% commune
- Bez-et-Esparon7.93 km²100% commune
- Roquessels7.90 km²90% commune
- Celles7.73 km²100% commune
- Molières-Cavaillac7.65 km²100% commune
- Abeilhan7.64 km²100% commune
- Lacoste7.54 km²100% commune
- Liausson7.48 km²100% commune
- Canet7.43 km²100% commune
- Ganges7.37 km²100% commune
- Arre7.36 km²100% commune
- Valmascle7.07 km²100% commune
- Puissalicon7.02 km²54% commune
- Claret6.89 km²24% commune
- Mérifons6.78 km²100% commune
- Arboras6.71 km²100% commune
- Ceyras6.71 km²100% commune
- Laroque6.69 km²100% commune
- Fos6.66 km²100% commune
- Aumes6.56 km²92% commune
- Pommiers6.49 km²100% commune
- Valros6.47 km²100% commune
- Saint-Guiraud6.38 km²100% commune
- La Boissière6.35 km²26% commune
- Lézignan-la-Cèbe6.28 km²100% commune
- Lieuran-Cabrières6.09 km²100% commune
- Popian5.79 km²100% commune
- Plaissan5.76 km²100% commune
- Fozières5.62 km²100% commune
- Brignac4.64 km²100% commune
- Margon4.57 km²100% commune
- Lagamas4.55 km²100% commune
- Vias4.48 km²14% commune
- Adissan4.44 km²100% commune
- Usclas-du-Bosc4.42 km²100% commune
- Saint-Félix-de-Lodez4.36 km²100% commune
- Cazouls-d'Hérault4.29 km²100% commune
- Bélarga4.12 km²100% commune
- La Cadière-et-Cambo4.10 km²34% commune
- Agonès4.00 km²100% commune
- Nézignan-l'Évêque3.99 km²100% commune
- Avèze3.82 km²100% commune
- Campagnan3.77 km²100% commune
- Tressan3.72 km²100% commune
- Mars3.71 km²100% commune
- Espondeilhan3.41 km²69% commune
- Bassurels3.26 km²7% commune
- Coulobres3.02 km²100% commune
- Magalas2.92 km²14% commune
- Aulas2.89 km²100% commune
- Pouzols2.79 km²100% commune
- Fouzilhon2.71 km²50% commune
- Usclas-d'Hérault2.71 km²100% commune
- Poujols2.67 km²100% commune
- Villeneuvette2.66 km²100% commune
- Puilacher2.64 km²100% commune
- Cazevieille2.37 km²15% commune
- Carlencas-et-Levas2.29 km²22% commune
- Dourbies2.02 km²3% commune
- Pomérols1.79 km²16% commune
- Jonquières1.74 km²100% commune
- Cornus1.65 km²2% commune
- Pompignan1.65 km²4% commune
- Saint-Hippolyte-du-Fort1.43 km²5% commune
- Les Plantiers1.29 km²4% commune
- Laurens0.57 km²3% commune
- Saint-Jean-du-Bruel0.53 km²1% commune
- Dio-et-Valquières0.53 km²3% commune
- Saint-André-de-Valborgne0.48 km²1% commune
- Lunas0.45 km²1% commune
- Pinet0.41 km²5% commune
- Roqueredonde0.32 km²1% commune
- Valflaunès0.24 km²1% commune
- Soudorgues0.18 km²1% commune
- Colognac0.16 km²1% commune
- Romiguières0.15 km²4% commune
- Meyrueis0.15 km²0% commune
- Nant0.04 km²0% commune
- Montarnaud0.03 km²0% commune
- Faugères0.03 km²0% commune
- Villeveyrac0.01 km²0% commune
- L'Estréchure0.01 km²0% commune
- Joncels0.01 km²0% commune
30 intersecting protected areas
Grands Causses
IUCN VRegional Nature Park
575.93 km² overlap
Hautes Garrigues du Montpelliérais
IUCN Not ReportedSpecial Protection Area (Birds Directive)
309.61 km² overlap
National Park - Buffer zone/Area of adhesion
304.93 km² overlap
Causse du Larzac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
294.13 km² overlap
Causse du Larzac
IUCN Not ReportedSpecial Protection Area (Birds Directive)
294.12 km² overlap
Gorges de l'Hérault
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
210.81 km² overlap
Gorges de la Vis et cirque de Navacelles
IUCN Not ReportedSpecial Protection Area (Birds Directive)
202.75 km² overlap
Le Salagou
IUCN Not ReportedSpecial Protection Area (Birds Directive)
127.27 km² overlap
Causse de Blandas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
78.95 km² overlap
21 more protected areassorted by overlap area
Les Cévennes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
70.06 km² overlap
Cévennes
IUCN IINational Park - Core Area
69.97 km² overlap
Gorges de la Vis et de la Virenque
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
55.00 km² overlap
Gorges de Rieutord, Fage et Cagnasse
IUCN Not ReportedSpecial Protection Area (Birds Directive)
53.47 km² overlap
Les Contreforts du Larzac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
52.97 km² overlap
Massif de l'Aigoual et du Lingas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
46.06 km² overlap
Garrigues de la Moure et d'Aumelas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
39.59 km² overlap
Causse de Campestre et Luc
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.16 km² overlap
Montagne de la Moure et Causse d'Aumelas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.04 km² overlap
Plaine de Villeveyrac-Montagnac
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.70 km² overlap
Pic Saint-Loup
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
26.11 km² overlap
Est et sud de Béziers
IUCN Not ReportedSpecial Protection Area (Birds Directive)
15.83 km² overlap
Gorges de la Dourbie et causses avoisinants
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.12 km² overlap
Gorges De L\'Hérault
IUCN IVBiotope Protection Order
4.51 km² overlap
Aqueduc de Pézenas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.44 km² overlap
Ravin Des Arcs
IUCN IVBiotope Protection Order
2.63 km² overlap
Mines de Villeneuvette
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.55 km² overlap
St Guillhem-Le-Désert
IUCN IVForest Managed Biological Reserve
2.50 km² overlap
Gorges de la Vis et de la Virenque
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.46 km² overlap
Cirque De Mourèze
IUCN IVBiotope Protection Order
2.03 km² overlap
Vallée du Gardon de Saint-Jean
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 545 distinct species · 1 176 739 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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'Hérault : 31 espèces + 6 bulles famille, 70 interactions GloBI documentées sur 4 types (connectance 10.5%, filtre Serrano α=0.2). Les 6 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°
12,5°C
Annual rain
734mm
Moisture idx (CMI)
-0,24
Runoff
650mm/an
PET
970mm
AET
613mm
Mean slope
8,5°
Water table
342cm
Forest
50%
Crops
20%
Urban
3%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)