HydroBASINS lev08 watershed · #7080059210
Bassin · #7080059210
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 : Sitka
Sub-basin area
129,4km²
Upstream area
129,4km²
Discharge
16,34m³/s
Mean elev.
527m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 127.0 km²97.6% of basin
1 intersecting protected areas
South Baranof
IUCN IbWilderness
124.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
149 distinct species · 322 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 · #7080059210 : 40 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 7.3%, filtre Serrano α=0.2). 7 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°
3,9°C
Annual rain
2 812mm
Moisture idx (CMI)
0,84
Runoff
3 623mm/an
PET
461mm
AET
461mm
Mean slope
26,7°
Water table
864cm
Forest
2%
Crops
0%
Urban
0%
Protected
97%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)