HydroBASINS lev08 watershed · #6080342220
Bassin de Rio Piranhas-Açu
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 8 administrative regions : Afonso Bezerra, Alto do Rodrigues, Angicos, Açu, Carnaubais +3
Sub-basin area
1 074,6km²
Upstream area
40 479,1km²
Discharge
76,96m³/s
Mean elev.
54m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Pataxó1131 km²
- Bassin de Riacho61 km²
8 dept-equivalent regions (GADM L2)
- 543.0 km²50.7% of basin
- 242.2 km²22.6% of basin
- 129.7 km²12.1% of basin
- 77.6 km²7.3% of basin
- 52.0 km²4.9% of basin
- 14.5 km²1.4% of basin
- 8.9 km²0.8% of basin
- 2.0 km²0.2% of basin
1 intersecting protected areas
Floresta Nacional De Açu
IUCN VIForest
2.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
405 distinct species · 18 256 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Rio Piranhas-Açu : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 4 types (connectance 5.3%, filtre Serrano α=0.2). 7 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°
27,4°C
Annual rain
640mm
Moisture idx (CMI)
-0,63
Runoff
79mm/an
PET
1 710mm
AET
541mm
Mean slope
1,1°
Water table
166cm
Forest
11%
Crops
14%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)