HydroBASINS lev08 watershed · #7080280980
Bassin de Rivière angle
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 : Nord-du-Québec
Sub-basin area
678,4km²
Upstream area
10 558,9km²
Discharge
147,96m³/s
Mean elev.
266m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rivière Adam468 km²
- Bassin de Rivière Harricana441 km²
1 dept-equivalent regions (GADM L2)
- 680.7 km²100.0% of basin
3 intersecting protected areas
Rivière-Angle Old-Growth Forest
IUCN IIIOld-growth forest
4.08 km² overlap
08551R068 Biological Refuge
IUCN IVBiological refuge
0.79 km² overlap
Proposed aquatic reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
126 distinct species · 370 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 angle : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 12 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°
-0,3°C
Annual rain
849mm
Moisture idx (CMI)
0,21
Runoff
486mm/an
PET
671mm
AET
550mm
Mean slope
0,6°
Water table
5cm
Forest
72%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)