Fleuve· 36 segments
Saint Lawrence River
Crosses 9 administrative regions : Franklin, Frontenac, Jefferson, Lake Ontario, Le Haut-Saint-Laurent +3
Total length
166km
Max discharge
7 963m³/s
Max Strahler
8
Segments matched
36
River geography9 admin regions · 0 communes
9 administrative regions crossed (GADM L2)
- Lake OntarioNew York · United States115.9 kmin this dpt
- Saint LawrenceNew York · United States50.6 kmin this dpt
- Lake OntarioOntario · Canada27.5 kmin this dpt
- Stormont, Dundas and GlengarryOntario · Canada8.9 kmin this dpt
- Leeds and GrenvilleOntario · Canada8.3 kmin this dpt
- JeffersonNew York · United States2.6 kmin this dpt
- Le Haut-Saint-LaurentQuébec · Canada0.0 kmin this dpt
- FrontenacOntario · Canada0.0 kmin this dpt
- FranklinNew York · United States0.0 kmin this dpt
19 intersecting protected areas
New York
IUCN VState Lands
Reserve Program
Upper Canada Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
National Park
Wilson Hill
IUCN VWildlife Management Area
Provincial Park
Hoasic Creek Wetland
IUCN IVConservation Area
Conservation Area
Indian Meadows
IUCN VForest Preserve
10 more protected areassorted by area
Murray Island -43121
IUCN Not AssignedConservation Easement
Doctor Island
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
Blanket Islands
IUCN Not AssignedConservation Easement
Daw-Steele -42833 Murray Island
IUCN Not AssignedConservation Easement
Griswold Island
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
Ice Island
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
Blueberry Island
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
Kippy's Isle
IUCN Not AssignedConservation Easement
Pig Island
IUCN Not AssignedConservation Easement
Island 78E
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
1 page = 1 named river (aggregation of 36 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
162 distinct species · 523 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Lawrence River : 34 espèces reliées par 106 interactions GloBI sur 4 types (connectance 10.2%, 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).
Hydrology (HydroRIVERS v10)
Total length
166km
Max discharge
7 963,0m³/s
Max Strahler
8
Segments matched
36
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.