HydroBASINS lev08 watershed · #8080002260
Bassin de Susitna 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 : Matanuska-Susitna
Sub-basin area
407,2km²
Upstream area
50 346,5km²
Discharge
1 360,48m³/s
Mean elev.
167m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Yentna River923 km²
- Bassin de Susitna River916 km²
1 dept-equivalent regions (GADM L2)
- 391.4 km²95.6% of basin
2 intersecting protected areas
Alexander Creek
IUCN VRecreation River
42.61 km² overlap
Susitna Flats State
IUCN VGame Refuge
16.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
94 distinct species · 281 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 Susitna River : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 5 types (connectance 8.4%, filtre Serrano α=0.2). 10 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°
0,7°C
Annual rain
554mm
Moisture idx (CMI)
0,04
Runoff
648mm/an
PET
529mm
AET
384mm
Mean slope
5,0°
Water table
89cm
Forest
77%
Crops
0%
Urban
0%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)