HydroLAKES lake · #158579
Gjerstadvannet
Surface area
1,36km²
Avg depth
12,2m
Volume
16,66km³
Shoreline
13,6km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- GjerstadAust-Agder · Norway1.37 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 145 distinct species · 4 241 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 Gjerstadvannet : 35 espèces reliées par 104 interactions GloBI sur 4 types (connectance 11.5%, filtre Serrano α=0.2). 8 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
1,36km²
Avg depth
12,2m
Volume
16,660km³
Watershed
307km²
Shoreline
13,6km
Shore dev. idx
3,29
Residence time
25days
Elevation
38m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.