Rivière· 13 segments
Rivière Châteauguay
Crosses 4 administrative regions : Beauharnois-Salaberry, Le Haut-Saint-Laurent, Les Jardins-de-Napierville, Roussillon
Total length
193km
Max discharge
43,8m³/s
Max Strahler
5
Segments matched
13
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- Le Haut-Saint-LaurentQuébec · Canada21.1 kmin this dpt
- Beauharnois-SalaberryQuébec · Canada16.6 kmin this dpt
- RoussillonQuébec · Canada3.9 kmin this dpt
- Les Jardins-de-NapiervilleQuébec · Canada0.0 kmin this dpt
4 intersecting protected areas
Water fowl gathering area
Water fowl gathering area
marais de Châteauguay-nord (partie Gestion Turan Inc) Natural Area Under Private Stewardship
IUCN Not ReportedNatural Area Under Private Stewardship
ruisseau Saint-Jean (unité 6) Natural Area Under Private Stewardship
IUCN Not ReportedNatural Area Under Private Stewardship
1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
110 distinct species · 1 135 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Rivière Châteauguay : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 125 interactions GloBI sur 4 types (connectance 13.8%, 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
193km
Max discharge
43,8m³/s
Max Strahler
5
Segments matched
13
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.