HydroLAKES lake · #158745
Gyvatn
Surface area
5,25km²
Avg depth
16,1m
Volume
84,31km³
Shoreline
43,7km
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Evje og HornnesAust-Agder · Norway2.83 km²53.7% of lake
- ByglandAust-Agder · Norway1.51 km²28.7% of lake
- ÅseralVest-Agder · Norway0.93 km²17.6% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
50 distinct species · 110 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Gyvatn : 10 espèces reliées par 11 interactions GloBI sur 2 types (connectance 14.1%, filtre Serrano α=0.2). 3 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
5,25km²
Avg depth
16,1m
Volume
84,310km³
Watershed
69km²
Shoreline
43,7km
Shore dev. idx
5,38
Residence time
372days
Elevation
564m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.