HydroLAKES lake · #157331
Hølvannet
Surface area
1,57km²
Avg depth
5,4m
Volume
8,41km³
Shoreline
11,9km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- RømskogÃstfold · Norway1.51 km²95.8% of lake
- Aurskog-HølandAkershus · Norway0.07 km²4.2% of lake
2 intersecting protected areas
Store rekke og Hølvannet
IUCN IaNature Reserve
1.56 km² overlap
Hølvatn
IUCN Not ReportedEmerald Network
1.54 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 018 distinct species · 5 452 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Hølvannet : 23 espèces reliées par 72 interactions GloBI sur 5 types (connectance 10.8%, filtre Serrano α=0.2). 14 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
1,57km²
Avg depth
5,4m
Volume
8,410km³
Watershed
12km²
Shoreline
11,9km
Shore dev. idx
2,68
Residence time
695days
Elevation
253m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.