HydroBASINS lev08 watershed · #8080002440
Bassin de North Fork Big 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 : Kenai Peninsula
Sub-basin area
712,3km²
Upstream area
712,5km²
Discharge
34,68m³/s
Mean elev.
621m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 713.8 km²99.6% of basin
3 intersecting protected areas
Lake Clark
IUCN VNational Preserve
285.16 km² overlap
Redoubt Bay
IUCN VCritical Habitat Area
251.27 km² overlap
Jay S. Hammond
IUCN IbWilderness Area
208.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 distinct species · 41 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 North Fork Big River : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 7 interactions GloBI sur 1 type (connectance 19.4%, filtre Serrano α=0.2).
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
710mm
Moisture idx (CMI)
0,35
Runoff
1 435mm/an
PET
460mm
AET
376mm
Mean slope
14,7°
Water table
498cm
Forest
1%
Crops
0%
Urban
0%
Protected
79%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)