HydroBASINS lev08 watershed · #7080096040
Bassin de Tsirku 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 3 administrative regions across 2 countries : Haines, Skagway-Yakutat-Angoon, Stikine
Sub-basin area
545,7km²
Upstream area
545,8km²
Discharge
24,33m³/s
Mean elev.
914m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 422.8 km²77.1% of basin
- 118.0 km²21.5% of basin
- 7.8 km²1.4% of basin
7 intersecting protected areas
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
133.24 km² overlap
TATSHENSHINI-ALSEK PARK
IUCN IbA - Park
110.08 km² overlap
Glacier Bay
IUCN IbWilderness Area
3.33 km² overlap
Glacier Bay
IUCN IINational Park
3.32 km² overlap
Marine Protected Area
3.32 km² overlap
Preserve
3.17 km² overlap
Chilkat River
IUCN VCritical Habitat Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
285 distinct species · 2 417 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Tsirku River : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 5 types (connectance 9.3%, filtre Serrano α=0.2). 11 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°
-0,2°C
Annual rain
1 102mm
Moisture idx (CMI)
0,56
Runoff
1 417mm/an
PET
484mm
AET
399mm
Mean slope
20,6°
Water table
602cm
Forest
9%
Crops
0%
Urban
0%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)