HydroBASINS lev08 watershed · #7080185230
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
326,2km²
Upstream area
14 046,2km²
Discharge
121,19m³/s
Mean elev.
997m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Big Bend Creek351 km²
- Bassin de Erhorn Creek286 km²
1 dept-equivalent regions (GADM L2)
- 327.6 km²100.0% of basin
1 intersecting protected areas
NECHAKO CANYON PROTECTED AREA
IUCN IIIProtected Area
3.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
93 distinct species · 183 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 23 espèces reliées par 60 interactions GloBI sur 4 types (connectance 11.4%, 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°
1,8°C
Annual rain
465mm
Moisture idx (CMI)
-0,31
Runoff
73mm/an
PET
677mm
AET
395mm
Mean slope
5,1°
Water table
430cm
Forest
87%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)