HydroBASINS lev08 watershed · #8080019080
Bassin de Afognak 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 : Kodiak Island
Sub-basin area
2 567,9km²
Upstream area
2 567,9km²
Discharge
14,51m³/s
Mean elev.
157m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 2354.3 km²91.2% of basin
11 intersecting protected areas
Shuyak Island
IUCN VState Park
249.52 km² overlap
Kodiak
IUCN IVNational Wildlife Refuge
217.21 km² overlap
Marine Protected Area
182.73 km² overlap
Alaska Maritime
IUCN IVNational Wildlife Refuge
182.58 km² overlap
Afognak Island
IUCN Not AssignedConservation Easement
141.42 km² overlap
Afognak Island
IUCN IIIState Park
19.05 km² overlap
Afognak Island - Perenosa Bay
IUCN Not AssignedConservation Easement
8.93 km² overlap
Shuyak
IUCN Not AssignedConservation Easement
8.05 km² overlap
Marine Protected Area
7.88 km² overlap
2 more protected areassorted by overlap area
Marine Protected Area
7.88 km² overlap
Uganik
IUCN Not AssignedConservation Easement
7.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 077 distinct species · 5 936 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Afognak River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 3 types (connectance 12.5%, 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°
3,5°C
Annual rain
1 427mm
Moisture idx (CMI)
0,68
Runoff
1 983mm/an
PET
456mm
AET
450mm
Mean slope
10,2°
Water table
413cm
Forest
71%
Crops
0%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)