HydroLAKES lake · #12426
Hennan
Surface area
23,45km²
Avg depth
18,4m
Volume
432,26km³
Shoreline
48,9km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- LjusdalGävleborg · Sweden23.59 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
436 distinct species · 994 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 Hennan : 28 espèces reliées par 56 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 8 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
23,45km²
Avg depth
18,4m
Volume
432,260km³
Watershed
553km²
Shoreline
48,9km
Shore dev. idx
2,85
Residence time
1 449days
Elevation
189m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.