HydroBASINS lev08 watershed · #8080019610
Bassin de Lazaref 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 : Aleutians East
Sub-basin area
1 118,6km²
Upstream area
1 118,6km²
Discharge
12,49m³/s
Mean elev.
273m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1088.4 km²96.9% of basin
4 intersecting protected areas
Alaska Maritime
IUCN IVNational Wildlife Refuge
1042.84 km² overlap
Marine Protected Area
1042.36 km² overlap
Unimak Island
IUCN IbWilderness Area
1015.94 km² overlap
National Monument
0.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
102 distinct species · 191 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 Lazaref River : 27 espèces reliées par 44 interactions GloBI sur 2 types (connectance 8.9%, filtre Serrano α=0.2). 5 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°
2,9°C
Annual rain
965mm
Moisture idx (CMI)
0,61
Runoff
1 250mm/an
PET
375mm
AET
369mm
Mean slope
8,3°
Water table
239cm
Forest
0%
Crops
0%
Urban
0%
Protected
98%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)