HydroLAKES lake · #158771
Songevannet
Surface area
2,39km²
Avg depth
16,7m
Volume
39,87km³
Shoreline
14,4km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- TvedestrandAust-Agder · Norway2.40 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 202 distinct species · 5 069 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Songevannet : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 5 types (connectance 11.2%, filtre Serrano α=0.2). 6 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
2,39km²
Avg depth
16,7m
Volume
39,870km³
Watershed
521km²
Shoreline
14,4km
Shore dev. idx
2,62
Residence time
33days
Elevation
0m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.