HydroBASINS lev08 watershed · #6080386370
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 9 administrative regions : Alexandria, Bom Sucesso, Brejo dos Santos, Jericó, Lagoa +4
Sub-basin area
612,8km²
Upstream area
612,9km²
Discharge
1,51m³/s
Mean elev.
308m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- 184.2 km²30.2% of basin
- 175.4 km²28.8% of basin
- 115.1 km²18.9% of basin
- 68.5 km²11.2% of basin
- 36.8 km²6.0% of basin
- 16.1 km²2.6% of basin
- 8.8 km²1.4% of basin
- 3.8 km²0.6% of basin
1 moreFull L2 list
- Paulista1.4 km² · 0.2%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
85 distinct species · 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 2 types (connectance 8.9%, filtre Serrano α=0.2). 2 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°
25,8°C
Annual rain
841mm
Moisture idx (CMI)
-0,51
Runoff
86mm/an
PET
1 717mm
AET
712mm
Mean slope
3,9°
Water table
226cm
Forest
23%
Crops
23%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)