HydroBASINS lev08 watershed · #6080738160
Bassin de Rio Negro
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 10 administrative regions : Bom Jardim, Cantagalo, Cordeiro, Duas Barras, Itaocara +5
Sub-basin area
1 160,3km²
Upstream area
1 160,3km²
Discharge
13,95m³/s
Mean elev.
441m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- Duas BarrasRio de Janeiro · Brazil322.8 km²27.9% of basin
- São Sebastião do AltoRio de Janeiro · Brazil261.3 km²22.6% of basin
- CantagaloRio de Janeiro · Brazil258.7 km²22.3% of basin
- 158.9 km²13.7% of basin
- 92.1 km²8.0% of basin
- 56.5 km²4.9% of basin
- Bom JardimRio de Janeiro · Brazil2.4 km²0.2% of basin
- São FidélisRio de Janeiro · Brazil2.0 km²0.2% of basin
2 moreFull L2 list
- Sumidouro1.5 km² · 0.1%
- Nova Friburgo1.1 km² · 0.1%
6 intersecting protected areas
Environmental Protection Area
1.13 km² overlap
Natural Heritage Private Reserve
0.59 km² overlap
Environmental Protection Area
0.31 km² overlap
Natural Heritage Private Reserve
0.14 km² overlap
Environmental Protection Area
0.11 km² overlap
Environmental Protection Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 604 distinct species · 27 598 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Negro : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 4 types (connectance 9.0%, filtre Serrano α=0.2). 6 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°
21,2°C
Annual rain
1 362mm
Moisture idx (CMI)
-0,09
Runoff
380mm/an
PET
1 509mm
AET
1 120mm
Mean slope
12,6°
Water table
434cm
Forest
1%
Crops
9%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)