HydroBASINS lev08 watershed · #7080417320
Bassin de Alburg Passage
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 4 administrative regions across 2 countries : Brome-Missisquoi, Franklin, Grand Isle, Le Haut-Richelieu
Sub-basin area
212,8km²
Upstream area
3 450,5km²
Discharge
78,83m³/s
Mean elev.
32m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rivière aux Brochets1027 km²
- Bassin de Missisquoi River158 km²
4 dept-equivalent regions (GADM L2)
- 112.4 km²52.7% of basin
- Franklin73.9 km²34.6% of basin
- 26.9 km²12.6% of basin
- 0.0 km²0.0% of basin
11 intersecting protected areas
Missisquoi
IUCN IVNational Wildlife Refuge
7.61 km² overlap
Maquam Bog Rna
IUCN IaResearch Natural Area
3.48 km² overlap
Natural Area Under Private Stewardship
1.82 km² overlap
Alburg Dunes
IUCN VState Park
1.54 km² overlap
Natural Area Under Private Stewardship
1.24 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.08 km² overlap
Natural Area Under Private Stewardship
0.07 km² overlap
Natural Area Under Private Stewardship
0.06 km² overlap
Birdland Marsh
IUCN VPrivate Conservation Land
0.05 km² overlap
2 more protected areassorted by overlap area
Alburgh Lakeshore
IUCN Not AssignedLake
0.04 km² overlap
Natural Area Under Private Stewardship
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 674 distinct species · 181 907 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Alburg Passage : 24 espèces reliées par 72 interactions GloBI sur 4 types (connectance 12.8%, 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°
6,7°C
Annual rain
871mm
Moisture idx (CMI)
0,00
Runoff
599mm/an
PET
868mm
AET
663mm
Mean slope
0,4°
Water table
26cm
Forest
40%
Crops
32%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)