HydroBASINS lev08 watershed · #6080873060
Bassin de Río San Juan
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 13 administrative regions : Albardón, Angaco, Capital, Caucete, Chimbas +8
Sub-basin area
1 424km²
Upstream area
28 111,1km²
Discharge
43,08m³/s
Mean elev.
670m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río de La Travesía1056 km²
- Bassin de Ramo Embalse191 km²
13 dept-equivalent regions (GADM L2)
- 240.3 km²16.9% of basin
- 237.1 km²16.7% of basin
- 184.4 km²13.0% of basin
- 168.0 km²11.8% of basin
- 109.6 km²7.7% of basin
- 106.7 km²7.5% of basin
- 89.6 km²6.3% of basin
- 80.7 km²5.7% of basin
5 moreFull L2 list
- Rivadavia67.5 km² · 4.7%
- Chimbas56.0 km² · 3.9%
- Santa Lucía55.1 km² · 3.9%
- Angaco25.0 km² · 1.8%
- Zonda2.9 km² · 0.2%
2 intersecting protected areas
Loma de las Tapias
IUCN VNature Park
47.11 km² overlap
Presidente Sarmiento
IUCN IIProvincial Park
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
481 distinct species · 9 723 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 San Juan : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 4 types (connectance 5.4%, filtre Serrano α=0.2). 13 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°
17,2°C
Annual rain
111mm
Moisture idx (CMI)
-0,93
Runoff
6mm/an
PET
1 579mm
AET
93mm
Mean slope
1,7°
Water table
337cm
Forest
1%
Crops
17%
Urban
10%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)