HydroBASINS lev08 watershed · #7080247110
Bassin de Rivière aux Perches
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
449,2km²
Upstream area
449,4km²
Discharge
10,34m³/s
Mean elev.
660m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 450.9 km²100.0% of basin
1 intersecting protected areas
02451R072 Biological Refuge
IUCN IVBiological refuge
5.84 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
73 distinct species · 152 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Perches : 12 espèces reliées par 30 interactions GloBI sur 2 types (connectance 17.5%, filtre Serrano α=0.2). 7 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°
-3,0°C
Annual rain
939mm
Moisture idx (CMI)
0,44
Runoff
732mm/an
PET
524mm
AET
497mm
Mean slope
4,6°
Water table
82cm
Forest
90%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)