Ontologia

HydroLAKES lake · #12564

Bergviken

Natural lakeSwedenEurope 37 m

Surface area

42,67km²

Avg depth

18,2m

Volume

777,94km³

Shoreline

68,9km

Administrative coverage

Parent watershed

hybas-20800314101048 km² · upstream 20173 km²

2 dept-equivalent regions (GADM L2)

  • Bollnäs
    Gävleborg · Sweden
    25.66 km²
    59.8% of lake
  • Söderhamn
    Gävleborg · Sweden
    17.26 km²
    40.2% of lake

7 intersecting protected areas

  • 2040452 Långnäsudden

    IUCN Ia

    Nature Reserve

    0.05 km² overlap

  • SK 256-2008

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.01 km² overlap

  • SK 434-2007

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.00 km² overlap

  • SK 141-2013

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.00 km² overlap

  • SK 30-2010

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

  • SK 551-2001

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

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

Species present

1 342 distinct species · 8 139 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 139 obs · 3 cellules
Obs. / cellule
≥ 3 603
3 603–3 602
3 603–3 602
2 404–3 602
< 2 404

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

Ecological tissue

Sample of 38 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 Bergviken : 25 espèces reliées par 84 interactions GloBI sur 6 types (connectance 11.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
84
Connectance
0.119
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

42,67km²

Avg depth

18,2m

Volume

777,940km³

Watershed

19 812km²

Shoreline

68,9km

Shore dev. idx

2,98

Residence time

54days

Elevation

37m

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