HydroLAKES lake · #154724
Grannäsen
Surface area
3,18km²
Avg depth
6,5m
Volume
20,79km³
Shoreline
17,4km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- OvanåkerGävleborg · Sweden3.20 km²100.0% of lake
4 intersecting protected areas
Stormyran-Grannäsen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.47 km² overlap
Stormyran-Grannäsen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.47 km² overlap
Stormyran-Grannäsen
IUCN Not AssignedNatura 2000 SCI
0.47 km² overlap
Stormyran-Grannäsen
IUCN Not AssignedNatura 2000 SPA
0.47 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
248 distinct species · 1 560 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Grannäsen : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 6 types (connectance 15.6%, filtre Serrano α=0.2). 12 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
3,18km²
Avg depth
6,5m
Volume
20,790km³
Watershed
19km²
Shoreline
17,4km
Shore dev. idx
2,74
Residence time
1 467days
Elevation
378m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.