Ontologia

HydroLAKES lake · #1153

Randsfjorden

Natural lakeNorwayEurope 125 m

Surface area

138,88km²

Avg depth

60,9m

Volume

8 462,19km³

Shoreline

200,7km

Administrative coverage

Parent watershed

hybas-2080228060324 km² · upstream 3222 km²

4 dept-equivalent regions (GADM L2)

  • Gran
    Oppland · Norway
    64.04 km²
    45.8% of lake
  • Søndre Land
    Oppland · Norway
    50.35 km²
    36.1% of lake
  • Jevnaker
    Oppland · Norway
    23.91 km²
    17.1% of lake
  • Nordre Land
    Oppland · Norway
    1.37 km²
    1.0% of lake

8 intersecting protected areas

  • Dokkadeltaet

    IUCN Ia

    Nature Reserve

    3.14 km² overlap

  • Dokkadeltaet

    IUCN Not Reported

    Emerald Network

    3.14 km² overlap

  • Dokkadelta

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    3.14 km² overlap

  • Røykenvika

    IUCN IV

    Wildlife Conservation Area

    0.69 km² overlap

  • Fluberg

    IUCN IV

    Wildlife Conservation Area

    0.67 km² overlap

  • Ånes

    IUCN Ia

    Nature Reserve

    0.01 km² overlap

  • Kjørkjetangen

    IUCN III

    Natural Monument

    0.00 km² overlap

  • Tønnerudtangen

    IUCN III

    Natural Monument

    0.00 km² overlap

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

Species present

1 784 distinct species · 32 425 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

32 425 obs · 5 cellules
Obs. / cellule
≥ 18 930
18 930–18 929
5 357–18 929
3 190–5 356
< 3 190

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

Ecological tissue

Sample of 30 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 Randsfjorden : 22 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 14.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
74
Connectance
0.149
Patrimoniales
3
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

138,88km²

Avg depth

60,9m

Volume

8 462,190km³

Watershed

3 741km²

Shoreline

200,7km

Shore dev. idx

4,80

Residence time

1 585days

Elevation

125m

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