HydroBASINS lev08 watershed · #7080398580
Bassin de Rivière Blanche
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 3 administrative regions : Communauté-Urbaine-de-l'Outaouai, Les Collines-de-l'Outaouais, Ottawa
Sub-basin area
780,7km²
Upstream area
120 779,1km²
Discharge
1 590,31m³/s
Mean elev.
143m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- 401.0 km²51.2% of basin
- 225.7 km²28.8% of basin
- 155.9 km²19.9% of basin
30 intersecting protected areas
Mer Bleue Bog
IUCN IIValued Ecosystem
19.22 km² overlap
Mer Bleue Conservation Area
IUCN Not ReportedWetland of International Importance (Ramsar Site)
18.67 km² overlap
White-tailed deer yard
6.55 km² overlap
Pine Grove Forest
IUCN IVValued Natural Habitat
5.07 km² overlap
Green's Creek
IUCN IVValued Natural Habitat
4.77 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
4.06 km² overlap
Water fowl gathering area
2.49 km² overlap
Lester Wetland
IUCN IVValued Natural Habitat
2.19 km² overlap
Recognized nature reserve
1.85 km² overlap
21 more protected areassorted by overlap area
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
1.82 km² overlap
Water fowl gathering area
1.50 km² overlap
Water fowl gathering area
1.16 km² overlap
Water fowl gathering area
1.08 km² overlap
Muskrat habitat
1.07 km² overlap
Muskrat habitat
1.03 km² overlap
Water fowl gathering area
1.02 km² overlap
Water fowl gathering area
0.95 km² overlap
Water fowl gathering area
0.81 km² overlap
Muskrat habitat
0.79 km² overlap
Water fowl gathering area
0.75 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.72 km² overlap
Muskrat habitat
0.71 km² overlap
Chapel Hill'S North Forest
IUCN IVValued Natural Habitat
0.71 km² overlap
Water fowl gathering area
0.70 km² overlap
Water fowl gathering area
0.67 km² overlap
07251R022 Biological Refuge
IUCN IVBiological refuge
0.65 km² overlap
Muskrat habitat
0.63 km² overlap
Muskrat habitat
0.62 km² overlap
Aviation Museum Woods
IUCN IVValued Natural Habitat
0.57 km² overlap
Muskrat habitat
0.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 718 distinct species · 794 218 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Rivière Blanche : 23 espèces reliées par 75 interactions GloBI sur 4 types (connectance 13.4%, filtre Serrano α=0.2). 11 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°
5,4°C
Annual rain
898mm
Moisture idx (CMI)
0,12
Runoff
432mm/an
PET
791mm
AET
616mm
Mean slope
3,1°
Water table
114cm
Forest
65%
Crops
9%
Urban
19%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)