HydroBASINS lev08 watershed · #8080003500
Bassin de Stream
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 : Aleutians East
Sub-basin area
1 297,1km²
Upstream area
1 297,1km²
Discharge
11,17m³/s
Mean elev.
145m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1160.4 km²89.1% of basin
11 intersecting protected areas
Izembek Lagoon National Wildlife Refuge
IUCN Not ReportedWetland of International Importance (Ramsar Site)
242.86 km² overlap
Alaska Peninsula
IUCN IVNational Wildlife Refuge
186.98 km² overlap
Alaska Maritime
IUCN IVNational Wildlife Refuge
163.67 km² overlap
Marine Protected Area
163.45 km² overlap
Izembek
IUCN IVNational Wildlife Refuge
126.11 km² overlap
Izembek
IUCN VRefuge
89.86 km² overlap
East
IUCN IbWilderness Area
88.15 km² overlap
National Monument
29.84 km² overlap
Marine Protected Area
2.13 km² overlap
2 more protected areassorted by overlap area
Marine Protected Area
2.13 km² overlap
West
IUCN IbWilderness Area
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 069 distinct species · 34 453 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 Stream : 19 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 5 types (connectance 16.1%, filtre Serrano α=0.2). 14 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°
3,2°C
Annual rain
938mm
Moisture idx (CMI)
0,59
Runoff
1 353mm/an
PET
389mm
AET
379mm
Mean slope
9,0°
Water table
380cm
Forest
2%
Crops
0%
Urban
0%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)