HydroLAKES lake · #157234
Onarheimsvatnet
Surface area
2,24km²
Avg depth
7,8m
Volume
17,54km³
Shoreline
12,3km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- KvinnheradHordaland · Norway2.25 km²100.0% of lake
1 intersecting protected areas
Rundeholmen i Opsangervatnet
IUCN IIINatural Monument
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
335 distinct species · 1 550 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Onarheimsvatnet : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 10 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
2,24km²
Avg depth
7,8m
Volume
17,540km³
Watershed
22km²
Shoreline
12,3km
Shore dev. idx
2,31
Residence time
152days
Elevation
8m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.