HydroBASINS lev08 watershed · #2080020340
Bassin de Courant de Soustons
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 2 administrative regions : Landes, Pyrénées-Atlantiques
Sub-basin area
1 037,5km²
Upstream area
1 037,5km²
Discharge
0,06m³/s
Mean elev.
37m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1027.9 km²98.9% of basin
- 0.0 km²0.0% of basin
39 communes (GADM L5)Available for FRA, RWA
- Soustons107.64 km²100% commune
- Castets90.18 km²100% commune
- Linxe73.19 km²90% commune
- Vielle-Saint-Girons73.15 km²99% commune
- Léon67.86 km²100% commune
- Magescq65.92 km²86% commune
- Lit-et-Mixe42.25 km²38% commune
- Seignosse36.92 km²100% commune
- Messanges33.71 km²100% commune
- Taller33.07 km²80% commune
- Herm31.64 km²60% commune
- Lesperon30.38 km²29% commune
- Moliets-et-Maa27.62 km²100% commune
- Saint-Martin-de-Seignanx24.96 km²54% commune
- Labenne24.04 km²100% commune
- Saubrigues22.02 km²100% commune
- Capbreton21.13 km²100% commune
- Saint-Vincent-de-Tyrosse20.98 km²100% commune
- Bénesse-Maremne18.72 km²100% commune
- Saint-André-de-Seignanx17.63 km²90% commune
- Saint-Michel-Escalus17.51 km²100% commune
- Tosse17.31 km²96% commune
- Azur16.69 km²100% commune
- Tarnos16.03 km²59% commune
- Ondres15.83 km²100% commune
- Soorts-Hossegor14.39 km²100% commune
- Saint-Martin-de-Hinx13.97 km²54% commune
- Saint-Jean-de-Marsacq12.18 km²46% commune
- Orx11.99 km²100% commune
- Angresse7.48 km²100% commune
- Saubion7.22 km²100% commune
- Biaudos4.92 km²32% commune
- Vieux-Boucau-les-Bains4.19 km²100% commune
- Saint-Geours-de-Maremne3.53 km²8% commune
- Biarrotte1.09 km²22% commune
- Josse0.38 km²4% commune
- Rivière-Saas-et-Gourby0.17 km²1% commune
- Gourbera0.02 km²0% commune
- Anglet0.00 km²0% commune
26 intersecting protected areas
Zones humides de l'arrière dune du Marensin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.15 km² overlap
Zones humides de l'Étang de Léon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.98 km² overlap
Marais d\'orx
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
10.26 km² overlap
Zones humides associées au marais d'Orx
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.89 km² overlap
Marais d'Orx et zones humides associées
IUCN Not ReportedWetland of International Importance (Ramsar Site)
9.64 km² overlap
Marais D\'Orx
IUCN IVNational Nature Reserve
7.78 km² overlap
Domaine d'Orx
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.50 km² overlap
Courant D\'Huchet
IUCN IVNational Nature Reserve
7.00 km² overlap
Courant d'Huchet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.81 km² overlap
17 more protected areassorted by overlap area
Dunes modernes du littoral landais de Capbreton à Tarnos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.01 km² overlap
Dunes modernes du littoral landais de Mimizan Plage au Vieux-Boucau
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.84 km² overlap
Le metro
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
2.54 km² overlap
Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
2.12 km² overlap
Zone humide du Métro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.04 km² overlap
Dunes modernes du littoral landais de Vieux-Boucau à Hossegor
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.77 km² overlap
Zones humides de Moliets, la Prade et Moisans
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.96 km² overlap
Dunes des casernes
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.78 km² overlap
Aboukir - la montagne
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.57 km² overlap
Étang Noir
IUCN IVNational Nature Reserve
0.53 km² overlap
Courant d’huchet
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.39 km² overlap
Lac d\'yrieux
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.38 km² overlap
La cote sauvage
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.33 km² overlap
Zones humides de l'ancien étang de Lit-et-Mixe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.07 km² overlap
Barthes de l'Adour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.03 km² overlap
L'Adour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Biotope Protection Order
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 141 distinct species · 371 638 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Courant de Soustons : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 6 types (connectance 10.7%, 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°
13,4°C
Annual rain
1 276mm
Moisture idx (CMI)
0,29
Runoff
798mm/an
PET
903mm
AET
765mm
Mean slope
1,4°
Water table
81cm
Forest
90%
Crops
7%
Urban
4%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)