HydroLAKES lake · #155305
Fjärden
Surface area
4,57km²
Avg depth
4,2m
Volume
19,39km³
Shoreline
26,4km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- OckelboGävleborg · Sweden4.60 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
458 distinct species · 2 399 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 Fjärden : 23 espèces reliées par 72 interactions GloBI sur 5 types (connectance 14.5%, filtre Serrano α=0.2). 9 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
4,57km²
Avg depth
4,2m
Volume
19,390km³
Watershed
1 201km²
Shoreline
26,4km
Shore dev. idx
3,48
Residence time
20days
Elevation
66m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.