HydroBASINS lev08 watershed · #7080379190
Bassin de Rivière L'Assomption
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Joliette, Matawinie
Sub-basin area
758,3km²
Upstream area
758,3km²
Discharge
13,59m³/s
Mean elev.
419m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 756.6 km²99.5% of basin
- 3.7 km²0.5% of basin
9 intersecting protected areas
Quebec's national park
289.18 km² overlap
Rivière L'Assomption, St-Guillaume-Nord Habitat Of A Threatened Or Vulnerable Wildlife Species
IUCN VIHabitat of a threatened or vulnerable wildlife species
5.45 km² overlap
Habitat of a threatened or vulnerable wildlife species
2.09 km² overlap
06251R018 Biological Refuge
IUCN IVBiological refuge
1.05 km² overlap
06251R013 Biological Refuge
IUCN IVBiological refuge
0.97 km² overlap
06251R034 Biological Refuge
IUCN IVBiological refuge
0.16 km² overlap
06251R030 Biological Refuge
IUCN IVBiological refuge
0.16 km² overlap
06251R023 Biological Refuge
IUCN IVBiological refuge
0.16 km² overlap
06251R015 Biological Refuge
IUCN IVBiological refuge
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 196 distinct species · 51 773 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 Bassin de Rivière L'Assomption : 27 espèces reliées par 86 interactions GloBI sur 3 types (connectance 12.9%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
2,9°C
Annual rain
1 095mm
Moisture idx (CMI)
0,30
Runoff
566mm/an
PET
762mm
AET
645mm
Mean slope
7,4°
Water table
201cm
Forest
99%
Crops
0%
Urban
0%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)