Fleuve· 115 segments
Fleuve Saint-Laurent
Crosses 17 administrative regions : Beauharnois-Salaberry, Bécancour, Champlain, Communauté-Urbaine-de-Montréal, Communauté-Urbaine-de-Québec +12
Total length
1 017km
Max discharge
12 343,9m³/s
Max Strahler
8
Segments matched
115
River geography17 admin regions · 0 communes
17 administrative regions crossed (GADM L2)
- Communauté-Urbaine-de-MontréalQuébec · Canada50.9 kmin this dpt
- FranchevilleQuébec · Canada13.5 kmin this dpt
- D'AutrayQuébec · Canada7.8 kmin this dpt
- Les Chutes-de-la-ChaudièreQuébec · Canada7.1 kmin this dpt
- RoussillonQuébec · Canada5.7 kmin this dpt
- Le Bas-RichelieuQuébec · Canada5.4 kmin this dpt
- Vaudreuil-SoulangesQuébec · Canada5.0 kmin this dpt
- PortneufQuébec · Canada4.3 kmin this dpt
- ChamplainQuébec · Canada3.1 kmin this dpt
- Communauté-Urbaine-de-QuébecQuébec · Canada1.8 kmin this dpt
- LotbinièreQuébec · Canada1.5 kmin this dpt
- L'AssomptionQuébec · Canada0.0 kmin this dpt
- BécancourQuébec · Canada0.0 kmin this dpt
- DesjardinsQuébec · Canada0.0 kmin this dpt
- Beauharnois-SalaberryQuébec · Canada0.0 kmin this dpt
- MaskinongéQuébec · Canada0.0 kmin this dpt
- Nicolet-YamaskaQuébec · Canada0.0 kmin this dpt
30 intersecting protected areas
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
21 more protected areassorted by area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Îles de la Paix Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Quebec's national park
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
Water fowl gathering area
1 page = 1 named river (aggregation of 115 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
320 distinct species · 12 132 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Fleuve Saint-Laurent : 24 espèces reliées par 104 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).
Hydrology (HydroRIVERS v10)
Total length
1 017km
Max discharge
12 343,9m³/s
Max Strahler
8
Segments matched
115
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.