HydroLAKES lake · #158537
Gravatn
Surface area
5,3km²
Avg depth
51,9m
Volume
275km³
Shoreline
25,1km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- SirdalVest-Agder · Norway5.33 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
436 distinct species · 2 114 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Gravatn : 27 espèces reliées par 97 interactions GloBI sur 7 types (connectance 11.3%, filtre Serrano α=0.2). 15 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
5,30km²
Avg depth
51,9m
Volume
275,000km³
Watershed
25km²
Shoreline
25,1km
Shore dev. idx
3,07
Residence time
2 146days
Elevation
656m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.