HydroBASINS lev08 watershed · #2080036400
Bassin de Stjørdalselva
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 7 administrative regions across 2 countries : Levanger, Malvik, Meråker, Selbu, Stjørdal +2
Sub-basin area
2 103,2km²
Upstream area
2 103,2km²
Discharge
64,72m³/s
Mean elev.
484m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 1109.0 km²52.4% of basin
- 813.2 km²38.4% of basin
- 85.7 km²4.0% of basin
- 49.9 km²2.4% of basin
- 36.7 km²1.7% of basin
- 21.6 km²1.0% of basin
- 0.1 km²0.0% of basin
24 intersecting protected areas
Skarvan og Roltdalen
IUCN IINational Park
152.28 km² overlap
Skarvan og Roltdalen
IUCN Not ReportedEmerald Network
152.04 km² overlap
Øvre Forra
IUCN IaNature Reserve
99.98 km² overlap
Øvre Forra
IUCN IaWetland of International Importance (Ramsar Site)
99.97 km² overlap
Øvre Forra
IUCN Not ReportedEmerald Network
99.97 km² overlap
Koltjønndalen
IUCN Not ReportedEmerald Network
54.60 km² overlap
Koltjønndalen
IUCN IaNature Reserve
54.60 km² overlap
Feren
IUCN IaNature Reserve
18.05 km² overlap
Kongrosletta
IUCN IaNature Reserve
11.21 km² overlap
15 more protected areassorted by overlap area
Grønningen
IUCN IaNature Reserve
10.08 km² overlap
Kvennskora
IUCN IaNature Reserve
3.06 km² overlap
Hesthølmelan og Aunbekkdalen
IUCN IaNature Reserve
2.24 km² overlap
Kringåsen
IUCN IaNature Reserve
2.01 km² overlap
Hemrasmarka
IUCN IaNature Reserve
1.69 km² overlap
Meådal
IUCN IaNature Reserve
0.18 km² overlap
Reppesleiret
IUCN Not ReportedEmerald Network
0.15 km² overlap
Reppesleiret
IUCN IaNature Reserve
0.14 km² overlap
Måsøra-Hofstadøra
IUCN Not ReportedEmerald Network
0.14 km² overlap
Måsøra-Hofstadøra
IUCN IaNature Reserve
0.14 km² overlap
Røkkesdalen-Skogndalen
IUCN IaNature Reserve
0.10 km² overlap
Liaberga
IUCN IaNature Reserve
0.08 km² overlap
Hegramo
IUCN IaNature Reserve
0.08 km² overlap
Åreälven
IUCN Not AssignedNatura 2000 SCI
0.01 km² overlap
Åreälven
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 459 distinct species · 777 355 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 Stjørdalselva : 32 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 7 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°
2,0°C
Annual rain
883mm
Moisture idx (CMI)
0,50
Runoff
928mm/an
PET
443mm
AET
403mm
Mean slope
8,7°
Water table
287cm
Forest
58%
Crops
0%
Urban
0%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)