HydroBASINS lev08 watershed · #2080116180
Bassin de Orvvošjohka
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 : Alta, Kautokeino
Sub-basin area
804,6km²
Upstream area
8 075,5km²
Discharge
80,66m³/s
Mean elev.
396m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Náhpoljohka1401 km²
- Bassin de Mázejohka754 km²
2 dept-equivalent regions (GADM L2)
- 427.2 km²52.7% of basin
- 383.3 km²47.3% of basin
1 intersecting protected areas
Máze
IUCN IaNature Reserve
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 895 distinct species · 42 743 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Orvvošjohka : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 118 interactions GloBI sur 5 types (connectance 10.0%, filtre Serrano α=0.2). 15 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°
-3,2°C
Annual rain
565mm
Moisture idx (CMI)
0,36
Runoff
390mm/an
PET
359mm
AET
307mm
Mean slope
6,8°
Water table
187cm
Forest
62%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)