Ontologia

HydroLAKES lake · #12666

Öjaren

Natural lakeSwedenEurope 59 m

Surface area

19,54km²

Avg depth

6,6m

Volume

128,2km³

Shoreline

53km

Administrative coverage

Parent watershed

hybas-20800314501586 km² · upstream 1587 km²

2 dept-equivalent regions (GADM L2)

  • Gävle
    Gävleborg · Sweden
    12.37 km²
    63.0% of lake
  • Sandviken
    Gävleborg · Sweden
    7.28 km²
    37.0% of lake

4 intersecting protected areas

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

Species present

443 distinct species · 1 560 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 560 obs · 1 cellules
Obs. / cellule
≥ 1 560
1 560–1 559
1 560–1 559
1 560–1 559
< 1 560

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

Ecological tissue

Sample of 42 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 Öjaren : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 8.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
74
Connectance
0.086
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

19,54km²

Avg depth

6,6m

Volume

128,200km³

Watershed

44km²

Shoreline

53,0km

Shore dev. idx

3,38

Residence time

3 240days

Elevation

59m

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