HydroBASINS lev08 watershed · #7080331240
Bassin de Arrow 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 2 administrative regions across 2 countries : Cook, Thunder Bay
Sub-basin area
875,2km²
Upstream area
875,2km²
Discharge
14,03m³/s
Mean elev.
475m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 784.0 km²89.3% of basin
- Cook93.8 km²10.7% of basin
7 intersecting protected areas
Boundary Waters Canoe Area
IUCN IbWilderness
46.37 km² overlap
Provincial Park
12.11 km² overlap
Provincial Park
10.85 km² overlap
Provincial Park
8.22 km² overlap
Provincial Park
3.97 km² overlap
Provincial Park
0.88 km² overlap
Conservation Reserve
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 423 distinct species · 14 612 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Arrow River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 11 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°
2,4°C
Annual rain
732mm
Moisture idx (CMI)
-0,01
Runoff
510mm/an
PET
743mm
AET
583mm
Mean slope
3,9°
Water table
106cm
Forest
73%
Crops
1%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)