HydroBASINS lev08 watershed · #2080205860
Bassin de Otta
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 4 administrative regions : Lesja, Lom, Luster, Skjåk
Sub-basin area
790km²
Upstream area
2 101,2km²
Discharge
60,71m³/s
Mean elev.
1 276m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Otta970 km²
- Bassin de Ostri341 km²
4 dept-equivalent regions (GADM L2)
- 743.8 km²93.6% of basin
- 48.2 km²6.1% of basin
- 2.5 km²0.3% of basin
- 0.2 km²0.0% of basin
6 intersecting protected areas
Breheimen
IUCN Not ReportedEmerald Network
362.45 km² overlap
Breheimen
IUCN IINational Park
362.44 km² overlap
Reinheimen
IUCN IINational Park
130.61 km² overlap
Reinheimen
IUCN Not ReportedEmerald Network
130.51 km² overlap
Ottadalen
IUCN VProtected Landscape
103.04 km² overlap
Risheimøyi
IUCN IaNature Reserve
2.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 374 distinct species · 14 023 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 Otta : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 4 types (connectance 12.7%, 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°
-1,3°C
Annual rain
965mm
Moisture idx (CMI)
0,56
Runoff
763mm/an
PET
382mm
AET
353mm
Mean slope
12,3°
Water table
439cm
Forest
12%
Crops
0%
Urban
0%
Protected
75%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)