HydroBASINS lev08 watershed · #7080338280
Bassin de Rivière Saint-Maurice
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 2 administrative regions : Le Domaine-du-Roy, Le Haut-Saint-Maurice
Sub-basin area
455,2km²
Upstream area
21 847,6km²
Discharge
349,52m³/s
Mean elev.
351m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- 360.2 km²78.9% of basin
- 96.3 km²21.1% of basin
11 intersecting protected areas
04352R047 Biological Refuge
IUCN IVBiological refuge
3.41 km² overlap
04251R193 Biological Refuge
IUCN IVBiological refuge
1.27 km² overlap
04352R723 Biological Refuge
IUCN IVBiological refuge
1.25 km² overlap
04251R991 Biological Refuge
IUCN IVBiological refuge
1.24 km² overlap
04251R194 Biological Refuge
IUCN IVBiological refuge
0.93 km² overlap
04251R503 Biological Refuge
IUCN IVBiological refuge
0.92 km² overlap
04251R990 Biological Refuge
IUCN IVBiological refuge
0.79 km² overlap
04352R988 Biological Refuge
IUCN IVBiological refuge
0.43 km² overlap
Îles, lac des Heronry
IUCN VIHeronry
0.41 km² overlap
2 more protected areassorted by overlap area
04251R179 Biological Refuge
IUCN IVBiological refuge
0.31 km² overlap
04251R993 Biological Refuge
IUCN IVBiological refuge
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
94 distinct species · 245 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Saint-Maurice : 22 espèces reliées par 47 interactions GloBI sur 3 types (connectance 10.8%, 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°
2,3°C
Annual rain
979mm
Moisture idx (CMI)
0,24
Runoff
517mm/an
PET
745mm
AET
612mm
Mean slope
5,3°
Water table
120cm
Forest
92%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)