Ontologia

HydroLAKES lake · #156064

Untrafjärden

Natural lakeSwedenEurope 35 m

Surface area

9,14km²

Avg depth

7,9m

Volume

72,61km³

Shoreline

33,2km

Administrative coverage

Parent watershed

hybas-2080031490743 km² · upstream 28435 km²

3 dept-equivalent regions (GADM L2)

  • Tierp
    Uppsala · Sweden
    8.83 km²
    96.1% of lake
  • Gävle
    Gävleborg · Sweden
    0.29 km²
    3.1% of lake
  • Älvkarleby
    Uppsala · Sweden
    0.08 km²
    0.8% of lake

3 intersecting protected areas

  • Untra

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.13 km² overlap

  • Untra

    IUCN IV

    Natura 2000 SPA

    0.13 km² overlap

  • SK 520-2018

    IUCN IV

    Nature conservation agreement

    0.00 km² overlap

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

Species present

1 228 distinct species · 11 251 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 251 obs · 1 cellules
Obs. / cellule
≥ 11 251
11 251–11 250
11 251–11 250
11 251–11 250
< 11 251

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

Ecological tissue

Sample of 32 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 Untrafjärden : 23 espèces reliées par 71 interactions GloBI sur 5 types (connectance 13.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
71
Connectance
0.135
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

9,14km²

Avg depth

7,9m

Volume

72,610km³

Watershed

28 079km²

Shoreline

33,2km

Shore dev. idx

3,10

Residence time

2days

Elevation

35m

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