HydroBASINS lev08 watershed · #2080594990
Bassin de Río Gállego
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 across 2 countries : Hautes-Pyrénées, Huesca, Pyrénées-Atlantiques
Sub-basin area
888,6km²
Upstream area
888,6km²
Discharge
13,17m³/s
Mean elev.
1 455m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 885.9 km²99.5% of basin
- 2.9 km²0.3% of basin
- 1.3 km²0.2% of basin
4 communes (GADM L5)Available for FRA, RWA
- Laruns2.86 km²1% commune
- Cauterets0.71 km²0% commune
- Arrens-Marsous0.59 km²1% commune
- Estaing0.05 km²0% commune
30 intersecting protected areas
Viñamala
IUCN Not ReportedSpecial Protection Area (Birds Directive)
115.41 km² overlap
Tendeñera
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
88.63 km² overlap
Telera - Acumuer
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
55.51 km² overlap
Cabecera del río Aguas Limpias
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.69 km² overlap
Puertos de Panticosa, Bramatuero y Brazatos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.04 km² overlap
Sierras de San Juan de la Peña y Peña Oroel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.97 km² overlap
Sobrepuerto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.95 km² overlap
Foz de Escarrilla -Cucuraza
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.09 km² overlap
Sierra de Canciás - Silves
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.03 km² overlap
21 more protected areassorted by overlap area
Puerto de Otal - Cotefablo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.79 km² overlap
Monte Pacino
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.10 km² overlap
SanJuan de la Peña y Peña Oroel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.83 km² overlap
Pyrénées
IUCN IINational Park - Core Area
3.77 km² overlap
Massif du Ger et du Lurien
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.65 km² overlap
Protected Landscape
3.42 km² overlap
Río Gállego (Ribera de Biescas)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.50 km² overlap
Hautes vallées d'Aspe et d'Ossau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.47 km² overlap
Collarada y Canal de Ip
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.14 km² overlap
Collarada - Ibón de Ip
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.14 km² overlap
Natural Monument
1.11 km² overlap
Pico y turberas del Anayet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.93 km² overlap
Río Aurín
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.91 km² overlap
Natural Monument
0.83 km² overlap
Bujaruelo - Garganta de los Navarros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.83 km² overlap
Gaube, Vignemale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.53 km² overlap
Turberas del Macizo de los Infiernos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.50 km² overlap
Péguère, Barbat, Cambalès
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.21 km² overlap
Garcipollera - Selva de Villanúa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.14 km² overlap
Turberas de Acumuer
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.13 km² overlap
Massif de Sesques et de l'Ossau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 945 distinct species · 99 744 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Río Gállego : 23 espèces + 6 bulles famille, 63 interactions GloBI documentées sur 4 types (connectance 15.5%, 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°
6,2°C
Annual rain
1 016mm
Moisture idx (CMI)
0,21
Runoff
522mm/an
PET
745mm
AET
628mm
Mean slope
17,9°
Water table
606cm
Forest
65%
Crops
7%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)