HydroBASINS lev08 watershed · #6080872080
Bassin de Arroio Arambaré
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 : Arroio Grande, Cerrito, Herval, Pedro Osório, Piratini
Sub-basin area
445,6km²
Upstream area
2 418,1km²
Discharge
58,35m³/s
Mean elev.
123m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arroio Caracá491 km²
- Bassin de Arroio Tamanduá444 km²
5 dept-equivalent regions (GADM L2)
- 198.7 km²44.6% of basin
- 163.1 km²36.6% of basin
- 42.0 km²9.4% of basin
- 41.4 km²9.3% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Natural Heritage Private Reserve
0.99 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
196 distinct species · 685 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Arroio Arambaré : 23 espèces reliées par 24 interactions GloBI sur 3 types (connectance 6.8%, filtre Serrano α=0.2). 4 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°
17,6°C
Annual rain
1 308mm
Moisture idx (CMI)
0,02
Runoff
751mm/an
PET
1 280mm
AET
989mm
Mean slope
3,5°
Water table
199cm
Forest
4%
Crops
14%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)