HydroBASINS lev08 watershed · #7080402320
Bassin de Rivière des Outaouais
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 7 administrative regions : Argenteuil, Communauté-Urbaine-de-Montréal, Deux-Montagnes, Mirabel, Prescott and Russell +2
Sub-basin area
1 098,1km²
Upstream area
147 405,8km²
Discharge
1 924,2m³/s
Mean elev.
58m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
7 dept-equivalent regions (GADM L2)
- 347.4 km²31.6% of basin
- 291.4 km²26.5% of basin
- 154.8 km²14.1% of basin
- 131.4 km²11.9% of basin
- 66.1 km²6.0% of basin
- 22.5 km²2.0% of basin
- 4.5 km²0.4% of basin
30 intersecting protected areas
Oka National Park (Québec)
IUCN IIQuebec's national park
22.86 km² overlap
Water fowl gathering area
19.85 km² overlap
Water fowl gathering area
16.35 km² overlap
Water fowl gathering area
15.83 km² overlap
Water fowl gathering area
15.64 km² overlap
Water fowl gathering area
12.39 km² overlap
Water fowl gathering area
8.65 km² overlap
Water fowl gathering area
7.70 km² overlap
Water fowl gathering area
6.62 km² overlap
21 more protected areassorted by overlap area
Water fowl gathering area
5.67 km² overlap
Senneville Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
5.54 km² overlap
Water fowl gathering area
5.46 km² overlap
Water fowl gathering area
5.13 km² overlap
Water fowl gathering area
4.93 km² overlap
Water fowl gathering area
4.86 km² overlap
Water fowl gathering area
3.35 km² overlap
Proposed man-made landscape
3.32 km² overlap
Water fowl gathering area
2.88 km² overlap
Carillon Island Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
2.82 km² overlap
Water fowl gathering area
2.48 km² overlap
Water fowl gathering area
2.21 km² overlap
Muskrat habitat
2.17 km² overlap
Cap-Saint-Jacques Natural Area Under Private Stewardship
IUCN Not ReportedNatural Area Under Private Stewardship
1.90 km² overlap
Carillon Island Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
1.73 km² overlap
Water fowl gathering area
1.61 km² overlap
Muskrat habitat
1.39 km² overlap
Anse-à-l'Orme Natural Area Under Private Stewardship
IUCN Not ReportedNatural Area Under Private Stewardship
0.96 km² overlap
Water fowl gathering area
0.93 km² overlap
Muskrat habitat
0.91 km² overlap
Ecological reserve
0.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 915 distinct species · 1 020 458 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 des Outaouais : 16 espèces reliées par 83 interactions GloBI sur 3 types (connectance 19.1%, filtre Serrano α=0.2). 14 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°
6,0°C
Annual rain
930mm
Moisture idx (CMI)
0,11
Runoff
534mm/an
PET
831mm
AET
639mm
Mean slope
1,0°
Water table
48cm
Forest
40%
Crops
45%
Urban
11%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)