HydroLAKES lake · #155381
Hällsjön
Surface area
2,12km²
Avg depth
4,9m
Volume
10,33km³
Shoreline
10,7km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- OckelboGävleborg · Sweden2.13 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
394 distinct species · 12 675 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Hällsjön : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 4 types (connectance 12.9%, 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).
Lake statistics (HydroLAKES)
Surface
2,12km²
Avg depth
4,9m
Volume
10,330km³
Watershed
7km²
Shoreline
10,7km
Shore dev. idx
2,07
Residence time
1 685days
Elevation
65m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.