HydroBASINS lev08 watershed · #2080018710
Bassin de Rio Sado
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 : Alcácer do Sal
Sub-basin area
160,6km²
Upstream area
6 186,1km²
Discharge
37,69m³/s
Mean elev.
50m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Rio Xarrama1050 km²
- Bassin de Ribeira das Alcáçovas904 km²
1 dept-equivalent regions (GADM L2)
- Alcácer do SalSetúbal · Portugal160.7 km²100.0% of basin
6 intersecting protected areas
Comporta / Galé
IUCN Not ReportedSite of Community Importance (Habitats Directive)
47.88 km² overlap
Cabrela
IUCN Not ReportedSite of Community Importance (Habitats Directive)
19.98 km² overlap
Estuário do Sado
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.01 km² overlap
Estuário do Sado
IUCN Not ReportedSite of Community Importance (Habitats Directive)
18.69 km² overlap
Estuário do Sado
IUCN IVWetland of International Importance (Ramsar Site)
16.61 km² overlap
Estuario do Sado
IUCN IVNature Reserve
7.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 110 distinct species · 23 547 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 de Rio Sado : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 4 types (connectance 12.0%, 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°
17,0°C
Annual rain
600mm
Moisture idx (CMI)
-0,47
Runoff
236mm/an
PET
1 128mm
AET
507mm
Mean slope
1,9°
Water table
325cm
Forest
39%
Crops
31%
Urban
3%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)