HydroBASINS lev08 watershed · #7080434190
Bassin · #7080434190
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 : Frontenac, Jefferson, Lake Ontario
Sub-basin area
231,1km²
Upstream area
742 995,2km²
Discharge
7 438,6m³/s
Mean elev.
80m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Kents Creek408 km²
- Bassin · #708043792040 km²
4 dept-equivalent regions (GADM L2)
- Lake OntarioNew York · United States81.6 km²35.2% of basin
- JeffersonNew York · United States72.0 km²31.1% of basin
- 53.7 km²23.2% of basin
- 24.2 km²10.5% of basin
16 intersecting protected areas
Reserve Program
0.76 km² overlap
NYS Rte12E | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.49 km² overlap
Grenadier Island
IUCN VConservation Easement
0.26 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Jefferson, NY
IUCN VConservation Easement
0.24 km² overlap
Pelo Rd. - 33A
IUCN Not AssignedConservation Easement
0.14 km² overlap
Blake Blake Blake
IUCN Not AssignedConservation Easement
0.08 km² overlap
Wedge Farm | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.07 km² overlap
Wedge Farm | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.07 km² overlap
Wedge Farm | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.06 km² overlap
7 more protected areassorted by overlap area
Foster - (1122 LLC)
IUCN Not AssignedConservation Easement
0.05 km² overlap
Wedge Farm | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.05 km² overlap
Carleton Island - Lot 18-7, 18-8
IUCN Not AssignedConservation Easement
0.04 km² overlap
NYS Rte12E | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.04 km² overlap
Wedge Farm | Thousand Islands Land Trust
IUCN Not AssignedConservation Easement
0.04 km² overlap
Blanket Islands
IUCN Not AssignedConservation Easement
0.00 km² overlap
Guardino
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 581 distinct species · 133 358 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 · #7080434190 : 22 espèces reliées par 78 interactions GloBI sur 3 types (connectance 16.8%, filtre Serrano α=0.2). 9 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°
7,0°C
Annual rain
927mm
Moisture idx (CMI)
0,10
Runoff
505mm/an
PET
832mm
AET
636mm
Mean slope
0,5°
Water table
42cm
Forest
23%
Crops
37%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)