HydroBASINS lev08 watershed · #7080181000
Bassin de Nechako River
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 1 administrative regions : Bulkley-Nechako
Sub-basin area
868,9km²
Upstream area
16 263,6km²
Discharge
123,91m³/s
Mean elev.
962m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cheslatta River1349 km²
- Bassin de Nechako River326 km²
1 dept-equivalent regions (GADM L2)
- 872.5 km²100.0% of basin
1 intersecting protected areas
NECHAKO CANYON PROTECTED AREA
IUCN IIIProtected Area
8.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
170 distinct species · 835 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Nechako River : 21 espèces reliées par 93 interactions GloBI sur 5 types (connectance 12.6%, filtre Serrano α=0.2). 18 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°
1,7°C
Annual rain
479mm
Moisture idx (CMI)
-0,31
Runoff
95mm/an
PET
695mm
AET
406mm
Mean slope
5,3°
Water table
376cm
Forest
97%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)