HydroBASINS lev08 watershed · #7080497840
Bassin · #7080497840
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 across 2 countries : Lake Erie, Ottawa
Sub-basin area
89,6km²
Upstream area
623 754,8km²
Discharge
9 511,69m³/s
Mean elev.
172m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Portage River1700 km²
- Bassin · #708049709085 km²
3 dept-equivalent regions (GADM L2)
- 50.4 km²56.1% of basin
- 34.0 km²37.9% of basin
- Ottawa5.4 km²6.0% of basin
5 intersecting protected areas
North Bass Island
IUCN VEnvironmental System
0.13 km² overlap
Kuehnle
IUCN VWildlife Area
0.07 km² overlap
Honey Point
IUCN VWildlife Area
0.03 km² overlap
Petersen Woods
IUCN VNature Preserve
0.01 km² overlap
Lawrence-Evans
IUCN VNature Preserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
908 distinct species · 17 761 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 · #7080497840 : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 10 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°
9,7°C
Annual rain
855mm
Moisture idx (CMI)
-0,03
Runoff
154mm/an
PET
879mm
AET
688mm
Mean slope
0,0°
Water table
3cm
Forest
0%
Crops
79%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)