HydroBASINS lev08 watershed · #3080287750
Bassin de Вилюй
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 : Verkhnevilyuyskiy rayon, Vilyuyskiy rayon
Sub-basin area
857,9km²
Upstream area
380 889,1km²
Discharge
1 458,21m³/s
Mean elev.
131m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чыбыда837 km²
- Bassin de Тыалычыма40 km²
2 dept-equivalent regions (GADM L2)
- 792.1 km²91.8% of basin
- 71.1 km²8.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
52 distinct species · 69 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Вилюй : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 15 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-9,1°C
Annual rain
273mm
Moisture idx (CMI)
-0,48
Runoff
83mm/an
PET
520mm
AET
253mm
Mean slope
2,6°
Water table
46cm
Forest
73%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)