HydroBASINS lev08 watershed · #6080249020
Bassin de Rio Unini
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 1 administrative regions : Barcelos
Sub-basin area
1 464,7km²
Upstream area
20 687,7km²
Discharge
1 205,81m³/s
Mean elev.
48m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Pauini6097 km²
- Bassin de Rio Unini2966 km²
5 intersecting protected areas
Rio Negro
IUCN IbWetland of International Importance (Ramsar Site)
1377.64 km² overlap
Extractive Reserve
1073.35 km² overlap
Central Amazon Conservation Complex
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
340.83 km² overlap
Parque Nacional Do Jaú
IUCN IIPark
317.80 km² overlap
Sustainable Development Reserve
1.97 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
63 distinct species · 114 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
26,8°C
Annual rain
2 550mm
Moisture idx (CMI)
0,34
Runoff
1 387mm/an
PET
1 690mm
AET
1 605mm
Mean slope
0,4°
Water table
5cm
Forest
94%
Crops
0%
Urban
0%
Protected
94%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)