HydroBASINS lev08 watershed · #8080003220
Bassin de West Fork Chignik 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 : Lake and Peninsula
Sub-basin area
1 493,4km²
Upstream area
1 493,4km²
Discharge
23,15m³/s
Mean elev.
313m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1500.6 km²100.0% of basin
2 intersecting protected areas
Alaska Peninsula
IUCN IVNational Wildlife Refuge
905.70 km² overlap
Private Conservation Land
0.64 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
101 distinct species · 1 107 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 West Fork Chignik River : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 2 types (connectance 10.4%, filtre Serrano α=0.2). 8 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°
1,7°C
Annual rain
582mm
Moisture idx (CMI)
0,32
Runoff
459mm/an
PET
394mm
AET
346mm
Mean slope
11,4°
Water table
479cm
Forest
0%
Crops
0%
Urban
0%
Protected
60%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)