HydroBASINS lev08 watershed · #8080196970
Bassin de Tanana 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 : Fairbanks North Star, Southeast Fairbanks
Sub-basin area
403,8km²
Upstream area
41 847,6km²
Discharge
506,8m³/s
Mean elev.
395m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Delta Creek1276 km²
- Bassin de Delta Creek100 km²
2 dept-equivalent regions (GADM L2)
- 279.2 km²68.7% of basin
- 127.1 km²31.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
317 distinct species · 1 277 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Tanana River : 26 espèces reliées par 114 interactions GloBI sur 4 types (connectance 11.0%, 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°
-3,7°C
Annual rain
311mm
Moisture idx (CMI)
-0,40
Runoff
400mm/an
PET
522mm
AET
281mm
Mean slope
6,1°
Water table
153cm
Forest
58%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)