HydroBASINS lev08 watershed · #7080217630
Bassin de Atnarko 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 : Cariboo, Central Coast, Mount Waddington
Sub-basin area
769,3km²
Upstream area
1 464,6km²
Discharge
16,14m³/s
Mean elev.
1 474m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Maydoe Creek350 km²
- Bassin de Whitton Creek345 km²
3 dept-equivalent regions (GADM L2)
- 742.6 km²96.2% of basin
- 28.1 km²3.6% of basin
- 1.6 km²0.2% of basin
2 intersecting protected areas
TWEEDSMUIR PARK
IUCN IIA - Park
631.18 km² overlap
Lonesome Lake
IUCN IVPrivately Owned Conservation Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
416 distinct species · 2 974 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 Atnarko River : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 6 types (connectance 11.3%, filtre Serrano α=0.2). 10 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°
1,1°C
Annual rain
724mm
Moisture idx (CMI)
0,17
Runoff
456mm/an
PET
596mm
AET
440mm
Mean slope
16,5°
Water table
546cm
Forest
62%
Crops
0%
Urban
0%
Protected
82%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)