Ontologia

HydroLAKES lake · #12899

Öljaren

Natural lakeSwedenEurope 24 m

Surface area

17,82km²

Avg depth

7,7m

Volume

137,44km³

Shoreline

25,3km

Administrative coverage

Parent watershed

hybas-2080245140276 km² · upstream 276 km²

2 dept-equivalent regions (GADM L2)

  • Katrineholm
    Södermanland · Sweden
    11.98 km²
    66.9% of lake
  • Vingåker
    Södermanland · Sweden
    5.93 km²
    33.1% of lake

6 intersecting protected areas

  • SK 127-2001

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

  • Väsby

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.01 km² overlap

  • Väsby

    IUCN IV

    Natura 2000 SCI

    0.01 km² overlap

  • 2001874 Väsby

    IUCN IV

    Nature Reserve

    0.01 km² overlap

  • Rösätter-Viksätter

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

  • Rösätter-Viksätter

    IUCN Not Assigned

    Natura 2000 SCI

    0.00 km² overlap

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

Species present

1 769 distinct species · 13 662 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 662 obs · 1 cellules
Obs. / cellule
≥ 13 662
13 662–13 661
13 662–13 661
13 662–13 661
< 13 662

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

Ecological tissue

Sample of 37 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 Öljaren : 33 espèces reliées par 105 interactions GloBI sur 7 types (connectance 15.8%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
105
Connectance
0.158
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

17,82km²

Avg depth

7,7m

Volume

137,440km³

Watershed

214km²

Shoreline

25,3km

Shore dev. idx

1,69

Residence time

1 255days

Elevation

24m

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