HydroBASINS lev08 watershed · #7080017930
Bassin de Bella Coola 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 : Central Coast
Sub-basin area
766km²
Upstream area
5 358,3km²
Discharge
105,14m³/s
Mean elev.
1 029m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Bella Coola River748 km²
- Bassin de Nusatsum River277 km²
1 dept-equivalent regions (GADM L2)
- 769.0 km²100.0% of basin
10 intersecting protected areas
THORSEN CREEK CONSERVANCY
IUCN IbConservancy
83.01 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
4.39 km² overlap
JUMP ACROSS CONSERVANCY
IUCN IbConservancy
3.32 km² overlap
Conservancy
0.85 km² overlap
CLAYTON FALLS CONSERVANCY
IUCN IIConservancy
0.65 km² overlap
Privately Protected Area
0.63 km² overlap
Tidal Flats
IUCN IVPrivately Owned Conservation Area
0.63 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.34 km² overlap
Bella Coola Estuary
IUCN IVPrivately Owned Conservation Area
0.34 km² overlap
1 more protected areassorted by overlap area
DEAN RIVER CONSERVANCY
IUCN IbConservancy
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
745 distinct species · 5 237 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Bella Coola River : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 9.9%, 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°
3,2°C
Annual rain
1 253mm
Moisture idx (CMI)
0,53
Runoff
1 337mm/an
PET
586mm
AET
491mm
Mean slope
27,4°
Water table
847cm
Forest
28%
Crops
0%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)