HydroBASINS lev08 watershed · #7080055790
Bassin de Nitinat 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 3 administrative regions : Alberni-Clayoquot, Cowichan Valley, Nanaimo
Sub-basin area
1 964,7km²
Upstream area
1 964,7km²
Discharge
9,17m³/s
Mean elev.
394m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 1381.7 km²70.1% of basin
- 544.0 km²27.6% of basin
- Nanaimo13.5 km²0.7% of basin
9 intersecting protected areas
National Park
159.36 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
37.12 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
26.73 km² overlap
National Park
18.45 km² overlap
HITCHIE CREEK PARK
IUCN IIA - Park
2.38 km² overlap
NITINAT RIVER PARK
IUCN IIA - Park
1.60 km² overlap
Ecological Reserve
0.96 km² overlap
Ecological Reserve
0.77 km² overlap
CARMANAH WALBRAN PARK
IUCN IIA - Park
0.62 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 031 distinct species · 111 037 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Nitinat River : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 6 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°
7,8°C
Annual rain
2 304mm
Moisture idx (CMI)
0,70
Runoff
2 351mm/an
PET
676mm
AET
585mm
Mean slope
17,2°
Water table
735cm
Forest
98%
Crops
0%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)