HydroBASINS lev08 watershed · #8080000830
Bassin de Sheridan 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 : Valdez-Cordova
Sub-basin area
274,4km²
Upstream area
274,5km²
Discharge
23,04m³/s
Mean elev.
638m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 275.9 km²100.0% of basin
1 intersecting protected areas
Copper River Delta
IUCN VCritical Habitat Area
5.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
275 distinct species · 1 202 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Sheridan River : 22 espèces reliées par 70 interactions GloBI sur 5 types (connectance 11.8%, 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°
0,2°C
Annual rain
1 539mm
Moisture idx (CMI)
0,69
Runoff
2 482mm/an
PET
462mm
AET
458mm
Mean slope
15,9°
Water table
561cm
Forest
1%
Crops
0%
Urban
0%
Protected
88%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)