HydroBASINS lev08 watershed · #7080386520
Bassin de Ottawa River / 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 4 administrative regions : Nipissing, Pontiac, Renfrew, Témiscamingue
Sub-basin area
2 049,2km²
Upstream area
60 648,3km²
Discharge
832,26m³/s
Mean elev.
258m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
4 dept-equivalent regions (GADM L2)
- 1293.6 km²63.0% of basin
- 721.9 km²35.1% of basin
- 38.3 km²1.9% of basin
- 0.6 km²0.0% of basin
30 intersecting protected areas
Land set aside Rivière-Dumoine
IUCN Not ReportedLand set aside
104.92 km² overlap
Proposed aquatic reserve
11.87 km² overlap
Ecological reserve
3.37 km² overlap
Provincial Park
2.99 km² overlap
Ecological reserve
2.62 km² overlap
Provincial Park
2.37 km² overlap
Ecological reserve
2.11 km² overlap
07152R009 Biological Refuge
IUCN IVBiological refuge
1.32 km² overlap
Land set aside Rivières-Noire-et-Coulonge
IUCN Not ReportedLand set aside
1.26 km² overlap
21 more protected areassorted by overlap area
07151R026 Biological Refuge
IUCN IVBiological refuge
1.07 km² overlap
07151R031 Biological Refuge
IUCN IVBiological refuge
1.07 km² overlap
07151R033 Biological Refuge
IUCN IVBiological refuge
1.05 km² overlap
07151R022 Biological Refuge
IUCN IVBiological refuge
1.01 km² overlap
Mont-Martin Forest Refuge
IUCN IIIForest refuge
0.99 km² overlap
07151R030 Biological Refuge
IUCN IVBiological refuge
0.98 km² overlap
Ecological reserve
0.93 km² overlap
07151R027 Biological Refuge
IUCN IVBiological refuge
0.92 km² overlap
07151R044 Biological Refuge
IUCN IVBiological refuge
0.91 km² overlap
07152R095 Biological Refuge
IUCN IVBiological refuge
0.90 km² overlap
07152R011 Biological Refuge
IUCN IVBiological refuge
0.88 km² overlap
07152R084 Biological Refuge
IUCN IVBiological refuge
0.87 km² overlap
07152R085 Biological Refuge
IUCN IVBiological refuge
0.85 km² overlap
07151R032 Biological Refuge
IUCN IVBiological refuge
0.85 km² overlap
07151R042 Biological Refuge
IUCN IVBiological refuge
0.83 km² overlap
Natural Area Under Private Stewardship
0.83 km² overlap
07151R023 Biological Refuge
IUCN IVBiological refuge
0.79 km² overlap
07151R021 Biological Refuge
IUCN IVBiological refuge
0.76 km² overlap
07152R008 Biological Refuge
IUCN IVBiological refuge
0.75 km² overlap
07151R024 Biological Refuge
IUCN IVBiological refuge
0.73 km² overlap
07151R028 Biological Refuge
IUCN IVBiological refuge
0.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 590 distinct species · 99 005 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Ottawa River / Rivière des Outaouais : 30 espèces reliées par 71 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 8 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°
4,0°C
Annual rain
872mm
Moisture idx (CMI)
0,07
Runoff
358mm/an
PET
808mm
AET
615mm
Mean slope
4,2°
Water table
154cm
Forest
92%
Crops
1%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)