HydroBASINS lev08 watershed · #2080038100
Bassin de Midterelva
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 : Karlsøy, Tromsø
Sub-basin area
140,7km²
Upstream area
140,7km²
Discharge
5,92m³/s
Mean elev.
251m
Species present
373 distinct species · 882 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Midterelva : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 4 types (connectance 11.3%, 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°
0,7°C
Annual rain
895mm
Moisture idx (CMI)
0,64
Runoff
1 152mm/an
PET
324mm
AET
296mm
Mean slope
12,5°
Water table
345cm
Forest
32%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)