HydroBASINS lev08 watershed · #8080253400
Bassin de Nadina 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 1 administrative regions : Valdez-Cordova
Sub-basin area
693,6km²
Upstream area
28 777,6km²
Discharge
397,78m³/s
Mean elev.
709m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Klawasi River261 km²
- Bassin de Klutina River15 km²
1 dept-equivalent regions (GADM L2)
- 697.8 km²100.0% of basin
4 intersecting protected areas
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
210.62 km² overlap
Wrangell-St. Elias
IUCN VNational Preserve
128.49 km² overlap
Wrangell-Saint Elias
IUCN IbWilderness Area
113.03 km² overlap
Wrangell-St. Elias
IUCN IINational Park
15.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
305 distinct species · 4 136 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Nadina River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 5 types (connectance 9.7%, filtre Serrano α=0.2). 14 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°
-3,7°C
Annual rain
354mm
Moisture idx (CMI)
-0,34
Runoff
358mm/an
PET
544mm
AET
307mm
Mean slope
6,6°
Water table
122cm
Forest
49%
Crops
0%
Urban
0%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)