Ontologia

HydroLAKES lake · #156100

Skälsjön

Natural lakeSwedenEurope 13 m

Surface area

1,84km²

Avg depth

3,5m

Volume

6,35km³

Shoreline

7km

Administrative coverage

Parent watershed

hybas-2080031520964 km² · upstream 964 km²

1 dept-equivalent regions (GADM L2)

  • Tierp
    Uppsala · Sweden
    1.85 km²
    100.0% of lake

5 intersecting protected areas

  • 2020246 Saxmarken

    IUCN Ia

    Nature Reserve

    1.85 km² overlap

  • Saxmarken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.06 km² overlap

  • Saxmarken

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.06 km² overlap

  • Saxmarken

    IUCN Ia

    Natura 2000 SPA

    0.06 km² overlap

  • Saxmarken

    IUCN Ia

    Natura 2000 SCI

    0.06 km² overlap

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

923 distinct species · 8 034 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 034 obs · 1 cellules
Obs. / cellule
≥ 8 034
8 034–8 033
8 034–8 033
8 034–8 033
< 8 034

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 33 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Skälsjön : 30 espèces reliées par 58 interactions GloBI sur 4 types (connectance 10.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
58
Connectance
0.103
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

1,84km²

Avg depth

3,5m

Volume

6,350km³

Watershed

165km²

Shoreline

7,0km

Shore dev. idx

1,45

Residence time

48days

Elevation

13m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.