HydroBASINS lev08 watershed · #7080480440
Bassin de Johnston Channel
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 : Chatham-Kent, Lake St. Clair, Lambton
Sub-basin area
265km²
Upstream area
582 337,9km²
Discharge
9 199,69m³/s
Mean elev.
174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Saint Clair River2257 km²
- Bassin de North Branch Clinton River1971 km²
3 dept-equivalent regions (GADM L2)
- 222.6 km²83.9% of basin
- 24.4 km²9.2% of basin
- 18.4 km²6.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
699 distinct species · 13 057 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Johnston Channel : 27 espèces reliées par 71 interactions GloBI sur 3 types (connectance 11.9%, 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°
9,3°C
Annual rain
811mm
Moisture idx (CMI)
-0,12
Runoff
155mm/an
PET
924mm
AET
663mm
Mean slope
0,1°
Water table
5cm
Forest
14%
Crops
33%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)