HydroBASINS lev08 watershed · #7080290450
Bassin de Rivière aux Chutes
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 : Le Fjord-du-Saguenay
Sub-basin area
1 691,3km²
Upstream area
1 691,3km²
Discharge
39,91m³/s
Mean elev.
480m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 1696.8 km²100.0% of basin
9 intersecting protected areas
02352R074 Biological Refuge
IUCN IVBiological refuge
3.26 km² overlap
02352R073 Biological Refuge
IUCN IVBiological refuge
2.63 km² overlap
02452R012 Biological Refuge
IUCN IVBiological refuge
2.29 km² overlap
02452R015 Biological Refuge
IUCN IVBiological refuge
1.94 km² overlap
02352R086 Biological Refuge
IUCN IVBiological refuge
1.62 km² overlap
02352R087 Biological Refuge
IUCN IVBiological refuge
1.47 km² overlap
02352R084 Biological Refuge
IUCN IVBiological refuge
1.28 km² overlap
Île Poirier Old-Growth Forest
IUCN IIIOld-growth forest
0.79 km² overlap
02452R013 Biological Refuge
IUCN IVBiological refuge
0.52 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
163 distinct species · 2 437 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Rivière aux Chutes : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 4 types (connectance 14.4%, filtre Serrano α=0.2). 17 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°
-0,1°C
Annual rain
1 022mm
Moisture idx (CMI)
0,37
Runoff
745mm/an
PET
643mm
AET
579mm
Mean slope
3,3°
Water table
53cm
Forest
44%
Crops
2%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)