HydroBASINS lev08 watershed · #2080179270
Bassin de Fjällsjöälven
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 : Sollefteå, Strömsund
Sub-basin area
158,1km²
Upstream area
7 729,3km²
Discharge
128,99m³/s
Mean elev.
262m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nagasjöån223 km²
- Bassin de Fjällsjöälven13 km²
2 dept-equivalent regions (GADM L2)
- 157.5 km²99.0% of basin
- 1.6 km²1.0% of basin
4 intersecting protected areas
SK 536-2014
IUCN IVNature conservation agreement, Swedish Forest Agency
0.07 km² overlap
SK 292-2022
IUCN IVNature conservation agreement, Swedish Forest Agency
0.05 km² overlap
SK 487-2005
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 850-2002
IUCN IaHabitat Protection Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 028 distinct species · 3 114 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Fjällsjöälven : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 5 types (connectance 8.7%, filtre Serrano α=0.2). 5 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°
1,9°C
Annual rain
567mm
Moisture idx (CMI)
0,13
Runoff
405mm/an
PET
496mm
AET
391mm
Mean slope
5,0°
Water table
272cm
Forest
97%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)