HydroBASINS lev08 watershed · #2080019150
Bassin de Rio Sousa
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 18 administrative regions : Amarante, Arouca, Castelo de Paiva, Felgueiras, Gondomar +13
Sub-basin area
1 149km²
Upstream area
97 238,7km²
Discharge
674,66m³/s
Mean elev.
240m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Rio Tâmega211 km²
- Bassin de Rio Douro6 km²
18 dept-equivalent regions (GADM L2)
- 156.8 km²13.6% of basin
- AroucaAveiro · Portugal150.0 km²13.0% of basin
- 131.7 km²11.4% of basin
- PenafielPorto · Portugal129.4 km²11.3% of basin
- Santa Maria da FeiraAveiro · Portugal108.7 km²9.4% of basin
- Castelo de PaivaAveiro · Portugal95.3 km²8.3% of basin
- Vila Nova de GaiaPorto · Portugal86.1 km²7.5% of basin
- 84.0 km²7.3% of basin
10 moreFull L2 list
- Felgueiras68.7 km² · 6.0%
- Paços de Ferreira65.1 km² · 5.7%
- Valongo49.6 km² · 4.3%
- Porto20.1 km² · 1.7%
- Vale de Cambra1.7 km² · 0.1%
- Maia1.3 km² · 0.1%
- Santo Tirso1.2 km² · 0.1%
- Marco de Canaveses0.4 km² · 0.0%
- Amarante0.3 km² · 0.0%
- Oliveira de Azeméis0.0 km² · 0.0%
4 intersecting protected areas
Regional Protected Landscape
59.74 km² overlap
Valongo
IUCN Not ReportedSite of Community Importance (Habitats Directive)
25.46 km² overlap
Serras da Freita e Arada
IUCN Not ReportedSite of Community Importance (Habitats Directive)
23.80 km² overlap
Rio Paiva
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 646 distinct species · 357 225 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Rio Sousa : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 5 types (connectance 13.3%, filtre Serrano α=0.2). 7 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°
14,0°C
Annual rain
1 206mm
Moisture idx (CMI)
0,18
Runoff
831mm/an
PET
985mm
AET
714mm
Mean slope
7,5°
Water table
368cm
Forest
69%
Crops
17%
Urban
49%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)