HydroBASINS lev08 watershed · #6080014900
Bassin de Rio Itajaí-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 2 administrative regions : Itajaí, Navegantes
Sub-basin area
15,5km²
Upstream area
15 048,7km²
Discharge
409,3m³/s
Mean elev.
19m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Rio Itajaí-Açu1992 km²
- Bassin de Rio Itajaí-Mirim1661 km²
2 dept-equivalent regions (GADM L2)
- 9.4 km²61.2% of basin
- 6.0 km²38.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 066 distinct species · 6 700 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Itajaí-Açu : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 100 interactions GloBI sur 5 types (connectance 9.7%, filtre Serrano α=0.2). 15 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°
20,1°C
Annual rain
1 603mm
Moisture idx (CMI)
0,19
Runoff
850mm/an
PET
1 305mm
AET
1 263mm
Mean slope
2,8°
Water table
53cm
Forest
33%
Crops
6%
Urban
95%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)