HydroBASINS lev08 watershed · #6080132700
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 3 administrative regions : Bajo Baudó, El Litoral del San Juan, Istmina
Sub-basin area
403,3km²
Upstream area
12 379,3km²
Discharge
1 586,41m³/s
Mean elev.
60m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Copomá881 km²
- Bassin de Río San Juan49 km²
3 dept-equivalent regions (GADM L2)
- 388.3 km²96.7% of basin
- 9.7 km²2.4% of basin
- 3.5 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
56 distinct species · 308 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 5 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 : 4 espèces reliées par 4 interactions GloBI sur 2 types (connectance 40.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
25,9°C
Annual rain
6 789mm
Moisture idx (CMI)
0,79
Runoff
5 141mm/an
PET
1 448mm
AET
1 448mm
Mean slope
3,4°
Water table
83cm
Forest
86%
Crops
0%
Urban
0%
Protected
28%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)