HydroBASINS lev08 watershed · #8080070980
Bassin de Big 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 : Inuvik
Sub-basin area
2 653,2km²
Upstream area
3 846,9km²
Discharge
9,76m³/s
Mean elev.
152m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Big River780 km²
- Bassin de Bernard River413 km²
1 dept-equivalent regions (GADM L2)
- Inuvik2673.7 km²100.0% of basin
1 intersecting protected areas
Migratory Bird Sanctuary
1805.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
66 distinct species · 90 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Big River : 9 espèces reliées par 23 interactions GloBI sur 2 types (connectance 16.9%, filtre Serrano α=0.2). 8 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°
-14,4°C
Annual rain
132mm
Moisture idx (CMI)
-0,26
Runoff
139mm/an
PET
179mm
AET
132mm
Mean slope
2,3°
Water table
88cm
Forest
0%
Crops
0%
Urban
0%
Protected
68%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)