Ontologia

HydroLAKES lake · #12465

Norra Dellen

Natural lakeSwedenEurope 32 m

Surface area

79,88km²

Avg depth

15m

Volume

1 199,84km³

Shoreline

75,2km

Administrative coverage

Parent watershed

hybas-20800313102259 km² · upstream 2259 km²

1 dept-equivalent regions (GADM L2)

  • Hudiksvall
    Gävleborg · Sweden
    80.35 km²
    100.0% of lake

1 intersecting protected areas

  • SK 406-2005

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

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

Species present

705 distinct species · 6 260 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 260 obs · 2 cellules
Obs. / cellule
≥ 5 555
5 555–5 554
5 555–5 554
5 555–5 554
< 5 555

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

Ecological tissue

Sample of 27 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 Norra Dellen : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 4 types (connectance 19.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
85
Connectance
0.195
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

79,88km²

Avg depth

15,0m

Volume

1 199,840km³

Watershed

1 040km²

Shoreline

75,2km

Shore dev. idx

2,37

Residence time

1 732days

Elevation

32m

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