HydroBASINS lev08 watershed · #7080421580
Bassin de Oswegatchie River
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 1 administrative regions : Saint Lawrence
Sub-basin area
75,2km²
Upstream area
4 222,3km²
Discharge
88,24m³/s
Mean elev.
97m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Indian River1492 km²
- Bassin de Oswegatchie River794 km²
1 dept-equivalent regions (GADM L2)
- Saint LawrenceNew York · United States75.3 km²100.0% of basin
1 intersecting protected areas
Reserve Program
0.75 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
388 distinct species · 6 184 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Oswegatchie River : 28 espèces reliées par 80 interactions GloBI sur 4 types (connectance 11.4%, 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°
6,5°C
Annual rain
886mm
Moisture idx (CMI)
0,06
Runoff
465mm/an
PET
836mm
AET
638mm
Mean slope
0,8°
Water table
83cm
Forest
86%
Crops
28%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)