Ontologia

HydroLAKES lake · #157010

Ströjan

Natural lakeSwedenEurope 21 m

Surface area

1,39km²

Avg depth

4,1m

Volume

5,69km³

Shoreline

9,7km

Administrative coverage

Parent watershed

hybas-20800316302528 km² · upstream 2528 km²

1 dept-equivalent regions (GADM L2)

  • Norrtälje
    Stockholm · Sweden
    1.40 km²
    100.0% of lake

5 intersecting protected areas

  • SK 239-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.02 km² overlap

  • 2028949 Broby

    IUCN Ia

    Nature Reserve

    0.01 km² overlap

  • Ströjan

    IUCN Ia

    Natura 2000 SCI

    0.00 km² overlap

  • Ströjan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

  • 2000835 Ströja

    IUCN Ia

    Nature Reserve

    0.00 km² overlap

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

Species present

1 104 distinct species · 7 764 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 764 obs · 1 cellules
Obs. / cellule
≥ 7 764
7 764–7 763
7 764–7 763
7 764–7 763
< 7 764

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

Ecological tissue

Sample of 34 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 Ströjan : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 5 types (connectance 15.3%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
91
Connectance
0.153
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

1,39km²

Avg depth

4,1m

Volume

5,690km³

Watershed

10km²

Shoreline

9,7km

Shore dev. idx

2,32

Residence time

724days

Elevation

21m

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