HydroBASINS lev08 watershed · #6080879140
Bassin de Arroyo Negro
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 2 administrative regions across 2 countries : NA, Uruguay
Sub-basin area
5,8km²
Upstream area
262 809,5km²
Discharge
6 354,62m³/s
Mean elev.
6m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Uruguay655 km²
- Bassin de Arroyo del Molino593 km²
2 dept-equivalent regions (GADM L2)
- 5.5 km²94.4% of basin
- 0.3 km²5.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
141 distinct species · 750 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 Arroyo Negro : 26 espèces reliées par 33 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 6 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°
18,4°C
Annual rain
1 130mm
Moisture idx (CMI)
-0,20
Runoff
462mm/an
PET
1 411mm
AET
958mm
Mean slope
0,5°
Water table
53cm
Forest
6%
Crops
15%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)