HydroBASINS lev08 watershed · #2080018650
Bassin de Ribeira das Fontainhas
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 5 administrative regions : Alcácer do Sal, Grândola, Odemira, Santiago do Cacém, Sines
Sub-basin area
1 015,2km²
Upstream area
1 015,2km²
Discharge
2,23m³/s
Mean elev.
73m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- GrândolaSetúbal · Portugal310.6 km²30.6% of basin
- Alcácer do SalSetúbal · Portugal225.9 km²22.2% of basin
- Santiago do CacémSetúbal · Portugal201.0 km²19.8% of basin
- SinesSetúbal · Portugal200.8 km²19.8% of basin
- 41.7 km²4.1% of basin
15 intersecting protected areas
Comporta / Galé
IUCN Not ReportedSite of Community Importance (Habitats Directive)
271.65 km² overlap
Costa Sudoeste
IUCN Not ReportedSite of Community Importance (Habitats Directive)
102.02 km² overlap
Estuário do Sado
IUCN Not ReportedSite of Community Importance (Habitats Directive)
65.32 km² overlap
Nature Park
64.13 km² overlap
Estuário do Sado
IUCN IVWetland of International Importance (Ramsar Site)
62.52 km² overlap
Estuario do Sado
IUCN IVNature Reserve
56.43 km² overlap
Estuário do Sado
IUCN Not ReportedSpecial Protection Area (Birds Directive)
51.87 km² overlap
Costa Sudoeste
IUCN Not ReportedSpecial Protection Area (Birds Directive)
41.49 km² overlap
Nature Reserve
33.33 km² overlap
6 more protected areassorted by overlap area
Lagoa de St. André et Lagoa de Sancha
IUCN Not ReportedWetland of International Importance (Ramsar Site)
27.08 km² overlap
Lagoa de Santo André
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.26 km² overlap
Sudoeste Alentejano e Costa Vicentina
IUCN Not ReportedMarine Protected Area (OSPAR)
6.34 km² overlap
Açude da Murta
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.98 km² overlap
Lagoa da Sancha
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.33 km² overlap
Lagoas de Santo Andre e Sancha
IUCN Not ReportedMarine Protected Area (OSPAR)
2.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 684 distinct species · 174 587 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Ribeira das Fontainhas : 27 espèces reliées par 54 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 9 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°
16,8°C
Annual rain
601mm
Moisture idx (CMI)
-0,45
Runoff
242mm/an
PET
1 102mm
AET
507mm
Mean slope
1,9°
Water table
392cm
Forest
57%
Crops
13%
Urban
1%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)