HydroBASINS lev08 watershed · #8080000060
Bassin de Alsek 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 2 administrative regions across 2 countries : Skagway-Yakutat-Angoon, Stikine
Sub-basin area
2 021,7km²
Upstream area
28 067,8km²
Discharge
839,54m³/s
Mean elev.
693m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Alsek River150 km²
- Bassin de Tatshenshini River14 km²
2 dept-equivalent regions (GADM L2)
- 1765.4 km²86.8% of basin
- 267.3 km²13.2% of basin
5 intersecting protected areas
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1293.28 km² overlap
Glacier Bay
IUCN IINational Park
1035.43 km² overlap
Marine Protected Area
1035.14 km² overlap
Glacier Bay
IUCN IbWilderness Area
951.67 km² overlap
TATSHENSHINI-ALSEK PARK
IUCN IbA - Park
265.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
423 distinct species · 2 012 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Alsek River : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 16 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°
0,5°C
Annual rain
1 739mm
Moisture idx (CMI)
0,72
Runoff
2 880mm/an
PET
477mm
AET
462mm
Mean slope
14,4°
Water table
408cm
Forest
3%
Crops
0%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)