HydroLAKES lake · #158829
Øynesvann
Surface area
1,32km²
Avg depth
7,8m
Volume
10,32km³
Shoreline
16,9km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- TvedestrandAust-Agder · Norway0.76 km²57.6% of lake
- ArendalAust-Agder · Norway0.56 km²42.4% of lake
1 intersecting protected areas
Rosstøl
IUCN IaNature Reserve
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
942 distinct species · 3 100 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 Øynesvann : 38 espèces reliées par 121 interactions GloBI sur 7 types (connectance 9.5%, filtre Serrano α=0.2). 13 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
1,32km²
Avg depth
7,8m
Volume
10,320km³
Watershed
10km²
Shoreline
16,9km
Shore dev. idx
4,14
Residence time
424days
Elevation
97m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.