HydroLAKES lake · #59
Saint-Jean
Surface area
1 112,79km²
Avg depth
11m
Volume
12 240,69km³
Shoreline
700km
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Lac-Saint-Jean-EstQuébec · Canada518.83 km²46.5% of lake
- Le Domaine-du-RoyQuébec · Canada516.70 km²46.3% of lake
- Maria-ChapdelaineQuébec · Canada80.69 km²7.2% of lake
15 intersecting protected areas
Quebec's national park
24.15 km² overlap
Water fowl gathering area
9.09 km² overlap
Water fowl gathering area
6.92 km² overlap
Water fowl gathering area
5.81 km² overlap
Water fowl gathering area
5.72 km² overlap
Water fowl gathering area
5.43 km² overlap
Water fowl gathering area
3.60 km² overlap
Water fowl gathering area
3.06 km² overlap
Water fowl gathering area
2.30 km² overlap
6 more protected areassorted by overlap area
Water fowl gathering area
0.45 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.42 km² overlap
Water fowl gathering area
0.38 km² overlap
Water fowl gathering area
0.36 km² overlap
Muskrat habitat
0.25 km² overlap
Muskrat habitat
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 303 distinct species · 97 524 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 Saint-Jean : 18 espèces reliées par 71 interactions GloBI sur 4 types (connectance 17.5%, filtre Serrano α=0.2). 11 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
1 112,79km²
Avg depth
11,0m
Volume
12 240,690km³
Watershed
72 559km²
Shoreline
700,0km
Shore dev. idx
5,92
Residence time
91days
Elevation
96m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.