HydroBASINS lev08 watershed · #8080141820
Bassin de Koyukuk 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 : Yukon-Koyukuk
Sub-basin area
782,4km²
Upstream area
18 555,5km²
Discharge
159,62m³/s
Mean elev.
238m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de John River286 km²
- Bassin de Wild River51 km²
1 dept-equivalent regions (GADM L2)
- 787.8 km²100.0% of basin
1 intersecting protected areas
Kanuti
IUCN IVNational Wildlife Refuge
428.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
196 distinct species · 894 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Koyukuk River : 27 espèces reliées par 89 interactions GloBI sur 5 types (connectance 9.9%, filtre Serrano α=0.2). 16 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°
-6,4°C
Annual rain
334mm
Moisture idx (CMI)
-0,31
Runoff
314mm/an
PET
484mm
AET
290mm
Mean slope
4,0°
Water table
81cm
Forest
35%
Crops
0%
Urban
0%
Protected
53%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)