Ontologia

HydroLAKES lake · #154429

Norrsjön

Natural lakeSwedenEurope 87 m

Surface area

2,44km²

Avg depth

5,3m

Volume

12,83km³

Shoreline

21,4km

Administrative coverage

Parent watershed

hybas-2080213770666 km² · upstream 666 km²

1 dept-equivalent regions (GADM L2)

  • Ovanåker
    Gävleborg · Sweden
    2.45 km²
    100.0% of lake

2 intersecting protected areas

  • Näsudden

    IUCN Not Assigned

    Natura 2000 SCI

    0.02 km² overlap

  • Näsudden

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

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

Species present

1 096 distinct species · 5 665 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 665 obs · 1 cellules
Obs. / cellule
≥ 5 665
5 665–5 664
5 665–5 664
5 665–5 664
< 5 665

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

Ecological tissue

Sample of 30 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 Norrsjön : 18 espèces reliées par 107 interactions GloBI sur 4 types (connectance 21.6%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
107
Connectance
0.216
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

2,44km²

Avg depth

5,3m

Volume

12,830km³

Watershed

2 958km²

Shoreline

21,4km

Shore dev. idx

3,86

Residence time

6days

Elevation

87m

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