HydroBASINS lev08 watershed · #8080264770
Bassin de Nagle Channel
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 : Fort Smith
Sub-basin area
551,3km²
Upstream area
607 758,6km²
Discharge
3 450,8m³/s
Mean elev.
150m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Slave River1229 km²
- Bassin de Slave River224 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith554.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
312 distinct species · 670 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Nagle Channel : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 5 types (connectance 11.5%, filtre Serrano α=0.2). 16 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°
-4,1°C
Annual rain
300mm
Moisture idx (CMI)
-0,40
Runoff
22mm/an
PET
498mm
AET
267mm
Mean slope
0,1°
Water table
3cm
Forest
5%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)