HydroLAKES lake · #157520
Sparren
Surface area
2,85km²
Avg depth
8,5m
Volume
24,25km³
Shoreline
21,6km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- NorrtäljeStockholm · Sweden2.81 km²98.1% of lake
- VallentunaStockholm · Sweden0.06 km²1.9% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 693 distinct species · 9 865 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Sparren : 17 espèces reliées par 67 interactions GloBI sur 6 types (connectance 17.7%, filtre Serrano α=0.2). 11 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
2,85km²
Avg depth
8,5m
Volume
24,250km³
Watershed
39km²
Shoreline
21,6km
Shore dev. idx
3,60
Residence time
920days
Elevation
18m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.