HydroBASINS lev08 watershed · #7080019970
Bassin de North Fork Bradfield 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 : Prince of Wales-Outer Ketchi, Wrangell-Petersburg
Sub-basin area
922,6km²
Upstream area
922,6km²
Discharge
70,36m³/s
Mean elev.
856m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 921.8 km²99.4% of basin
- 5.1 km²0.6% of basin
2 intersecting protected areas
Misty Fiords
IUCN IbNational Monument Wilderness
5.89 km² overlap
Misty Fiords
IUCN VNational Monument
5.89 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
66 distinct species · 225 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 North Fork Bradfield River : 33 espèces reliées par 33 interactions GloBI sur 3 types (connectance 5.2%, filtre Serrano α=0.2). 3 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°
2,6°C
Annual rain
1 733mm
Moisture idx (CMI)
0,69
Runoff
2 324mm/an
PET
525mm
AET
507mm
Mean slope
26,4°
Water table
970cm
Forest
9%
Crops
0%
Urban
0%
Protected
41%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)