HydroBASINS lev08 watershed · #7080029610
Bassin de Nachvak 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 : Division No. 11, Nord-du-Québec
Sub-basin area
3 622,4km²
Upstream area
3 622,4km²
Discharge
4,19m³/s
Mean elev.
518m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Division No. 113493.8 km²95.9% of basin
- 24.0 km²0.7% of basin
2 intersecting protected areas
National Park
3538.45 km² overlap
Quebec's national park
12.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
569 distinct species · 2 841 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Nachvak River : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 6 types (connectance 9.1%, filtre Serrano α=0.2). 20 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°
-6,9°C
Annual rain
588mm
Moisture idx (CMI)
0,47
Runoff
650mm/an
PET
302mm
AET
277mm
Mean slope
17,5°
Water table
471cm
Forest
2%
Crops
0%
Urban
0%
Protected
96%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)