HydroLAKES lake · #157161
Helgesjøen
Surface area
4,04km²
Avg depth
10,5m
Volume
42,35km³
Shoreline
23,8km
Administrative coverage
2 dept-equivalent regions (GADM L2)
1 intersecting protected areas
Bjellneset
IUCN IaNature Reserve
0.02 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
310 distinct species · 908 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Helgesjøen : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 6 types (connectance 4.1%, 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
4,04km²
Avg depth
10,5m
Volume
42,350km³
Watershed
34km²
Shoreline
23,8km
Shore dev. idx
3,34
Residence time
1 270days
Elevation
168m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.