HydroLAKES lake · #754
St. Francis
Surface area
238,12km²
Avg depth
3,4m
Volume
818,1km³
Shoreline
314,7km
Administrative coverage
4 dept-equivalent regions (GADM L2)
- Beauharnois-SalaberryQuébec · Canada5.64 km²2.4% of lake
- Le Haut-Saint-LaurentQuébec · Canada1.40 km²0.6% of lake
- Stormont, Dundas and GlengarryOntario · Canada1.18 km²0.5% of lake
- Vaudreuil-SoulangesQuébec · Canada0.83 km²0.3% of lake
8 intersecting protected areas
Water fowl gathering area
12.75 km² overlap
Water fowl gathering area
8.55 km² overlap
Water fowl gathering area
7.88 km² overlap
Water fowl gathering area
6.03 km² overlap
Lac Saint-François
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.90 km² overlap
Muskrat habitat
0.85 km² overlap
île Dodens Heronry
IUCN VIHeronry
0.27 km² overlap
National Wildlife Area
0.01 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 744 distinct species · 273 484 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 St. Francis : 21 espèces reliées par 73 interactions GloBI sur 3 types (connectance 15.7%, 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).
Lake statistics (HydroLAKES)
Surface
238,12km²
Avg depth
3,4m
Volume
818,100km³
Watershed
781 910km²
Shoreline
314,7km
Shore dev. idx
5,75
Residence time
1days
Elevation
43m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.