HydroBASINS lev08 watershed · #2080038150
Bassin de Namdalelva - Nammavákkijohka
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 : Balsfjord, Tromsø
Sub-basin area
249,8km²
Upstream area
249,9km²
Discharge
7,64m³/s
Mean elev.
538m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 242.6 km²96.4% of basin
- 3.6 km²1.4% of basin
2 intersecting protected areas
Sandbukta
IUCN IaNature Reserve
0.56 km² overlap
Lakselvbukt
IUCN IaNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
586 distinct species · 4 664 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Namdalelva - Nammavákkijohka : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 13 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°
-0,9°C
Annual rain
741mm
Moisture idx (CMI)
0,56
Runoff
915mm/an
PET
326mm
AET
294mm
Mean slope
21,9°
Water table
528cm
Forest
28%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)