HydroBASINS lev08 watershed · #7080058820
Bassin · #7080058820
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 : Wrangell-Petersburg
Sub-basin area
110,7km²
Upstream area
110,9km²
Discharge
10,35m³/s
Mean elev.
134m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 87.1 km²78.2% of basin
5 intersecting protected areas
Coronation Island
IUCN IbWilderness
77.34 km² overlap
Hazy Islands
IUCN IVRefuge
1.77 km² overlap
Hazy Island
IUCN IbWilderness Area
0.16 km² overlap
Alaska Maritime
IUCN IVNational Wildlife Refuge
0.16 km² overlap
Marine Protected Area
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
216 distinct species · 560 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 · #7080058820 : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 4.1%, 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°
6,0°C
Annual rain
3 782mm
Moisture idx (CMI)
0,88
Runoff
2 965mm/an
PET
465mm
AET
465mm
Mean slope
13,5°
Water table
494cm
Forest
100%
Crops
0%
Urban
0%
Protected
69%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)