HydroBASINS lev08 watershed · #7080171380
Bassin de Nanika 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 2 administrative regions : Bulkley-Nechako, Kitimat-Stikine
Sub-basin area
1 993,3km²
Upstream area
1 993,6km²
Discharge
89,71m³/s
Mean elev.
1 233m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 1953.2 km²97.6% of basin
- 48.6 km²2.4% of basin
4 intersecting protected areas
MORICE LAKE PARK
IUCN IIA - Park
522.10 km² overlap
ATNA RIVER PARK
IUCN IIA - Park
204.85 km² overlap
A - Park
170.13 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
16.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
355 distinct species · 1 054 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Nanika River : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 6 types (connectance 10.2%, filtre Serrano α=0.2). 20 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°
1,5°C
Annual rain
1 013mm
Moisture idx (CMI)
0,44
Runoff
1 393mm/an
PET
551mm
AET
453mm
Mean slope
14,4°
Water table
483cm
Forest
41%
Crops
0%
Urban
0%
Protected
45%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)