HydroLAKES lake · #157906
Södra Tvängen
Surface area
1,1km²
Avg depth
7,3m
Volume
8,04km³
Shoreline
9,7km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- ÅrjängVärmland · Sweden1.11 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
347 distinct species · 2 645 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Södra Tvängen : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 6 types (connectance 4.6%, 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).
Lake statistics (HydroLAKES)
Surface
1,10km²
Avg depth
7,3m
Volume
8,040km³
Watershed
68km²
Shoreline
9,7km
Shore dev. idx
2,61
Residence time
130days
Elevation
185m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.