HydroBASINS lev08 watershed · #2080142360
Bassin de Bjøllåga - Biellok
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 3 administrative regions : Beiarn, Rana, Saltdal
Sub-basin area
347,5km²
Upstream area
347,5km²
Discharge
13,56m³/s
Mean elev.
854m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 256.5 km²73.3% of basin
- 76.0 km²21.7% of basin
- 17.4 km²5.0% of basin
2 intersecting protected areas
Saltfjellet-Svartisen
IUCN IINational Park
341.40 km² overlap
Emerald Network
340.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
578 distinct species · 3 956 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Bjøllåga - Biellok : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 2 types (connectance 11.6%, filtre Serrano α=0.2). 11 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°
-0,5°C
Annual rain
1 124mm
Moisture idx (CMI)
0,69
Runoff
1 231mm/an
PET
347mm
AET
339mm
Mean slope
10,8°
Water table
231cm
Forest
17%
Crops
0%
Urban
0%
Protected
97%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)