Ontologia

HydroLAKES lake · #157745

Norasjön

Natural lakeSwedenEurope 87 m

Surface area

7,5km²

Avg depth

9,9m

Volume

74,25km³

Shoreline

21,1km

Administrative coverage

Parent watershed

hybas-20802418901044 km² · upstream 1044 km²

1 dept-equivalent regions (GADM L2)

  • Nora
    Orebro · Sweden
    7.55 km²
    100.0% of lake

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

Species present

3 034 distinct species · 48 263 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

48 263 obs · 1 cellules
Obs. / cellule
≥ 48 263
48 263–48 262
48 263–48 262
48 263–48 262
< 48 263

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Norasjön : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 4 types (connectance 16.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
59
Connectance
0.168
Patrimoniales
1
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

7,50km²

Avg depth

9,9m

Volume

74,250km³

Watershed

844km²

Shoreline

21,1km

Shore dev. idx

2,17

Residence time

101days

Elevation

87m

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