HydroBASINS lev08 watershed · #8080272880
Bassin de McArthur 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
948,9km²
Upstream area
948,9km²
Discharge
44,1m³/s
Mean elev.
768m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 954.5 km²100.0% of basin
3 intersecting protected areas
Trading Bay State
IUCN VGame Refuge
133.99 km² overlap
Jay S. Hammond
IUCN IbWilderness Area
14.59 km² overlap
Lake Clark
IUCN VNational Preserve
14.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 150 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 McArthur River : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 5 types (connectance 7.5%, filtre Serrano α=0.2). 6 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
654mm
Moisture idx (CMI)
0,32
Runoff
1 424mm/an
PET
448mm
AET
362mm
Mean slope
14,2°
Water table
454cm
Forest
6%
Crops
0%
Urban
0%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)