HydroBASINS lev08 watershed · #8080181620
Bassin de Chatanika 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, Yukon-Koyukuk
Sub-basin area
1 778,9km²
Upstream area
2 135,3km²
Discharge
13,82m³/s
Mean elev.
419m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Smith Creek203 km²
- Bassin de Hope Creek154 km²
2 dept-equivalent regions (GADM L2)
- 1668.9 km²93.2% of basin
- 121.7 km²6.8% of basin
1 intersecting protected areas
Minto Flats State
IUCN VGame Refuge
72.60 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 364 distinct species · 35 368 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Chatanika River : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 5 types (connectance 7.0%, filtre Serrano α=0.2). 13 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°
-4,8°C
Annual rain
296mm
Moisture idx (CMI)
-0,43
Runoff
235mm/an
PET
518mm
AET
268mm
Mean slope
10,2°
Water table
284cm
Forest
62%
Crops
0%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)