HydroBASINS lev08 watershed · #7080366800
Bassin de Fleuve Saint-Laurent
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 : Lotbinière, Portneuf
Sub-basin area
61,9km²
Upstream area
1 041 965,9km²
Discharge
12 054,9m³/s
Mean elev.
26m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- 24.2 km²38.9% of basin
- 1.6 km²2.5% of basin
10 intersecting protected areas
Water fowl gathering area
6.17 km² overlap
Water fowl gathering area
3.74 km² overlap
Water fowl gathering area
3.74 km² overlap
Water fowl gathering area
2.36 km² overlap
Water fowl gathering area
1.49 km² overlap
Water fowl gathering area
1.17 km² overlap
Water fowl gathering area
1.14 km² overlap
Water fowl gathering area
0.62 km² overlap
Ecological reserve
0.59 km² overlap
1 more protected areassorted by overlap area
Natural Area Under Private Stewardship
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
610 distinct species · 32 935 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Fleuve Saint-Laurent : 22 espèces reliées par 85 interactions GloBI sur 4 types (connectance 15.2%, filtre Serrano α=0.2). 12 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°
4,8°C
Annual rain
1 062mm
Moisture idx (CMI)
0,26
Runoff
788mm/an
PET
784mm
AET
657mm
Mean slope
1,3°
Water table
78cm
Forest
36%
Crops
35%
Urban
0%
Protected
33%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)