Ontologia

HydroLAKES lake · #174285

Ushiku-numa

Natural lakeJapanAsia 1 m

Surface area

3,4km²

Avg depth

5,6m

Volume

18,9km³

Shoreline

19,9km

Administrative coverage

Parent watershed

hybas-40805877801458 km² · upstream 13790 km²

3 dept-equivalent regions (GADM L2)

  • Tsukuba
    Ibaraki · Japan
    1.82 km²
    53.5% of lake
  • Ryūgasaki
    Ibaraki · Japan
    1.29 km²
    37.9% of lake
  • Ushiku
    Ibaraki · Japan
    0.29 km²
    8.7% of lake

1 intersecting protected areas

  • Ushikunuma

    IUCN IV

    Prefectural Wildlife Protection Area

    2.76 km² overlap

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

Species present

292 distinct species · 1 101 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 101 obs · 1 cellules
Obs. / cellule
≥ 1 101
1 101–1 100
1 101–1 100
1 101–1 100
< 1 101

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

Ecological tissue

Sample of 37 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 Ushiku-numa : 28 espèces reliées par 68 interactions GloBI sur 4 types (connectance 9.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
68
Connectance
0.092
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

3,40km²

Avg depth

5,6m

Volume

18,900km³

Watershed

160km²

Shoreline

19,9km

Shore dev. idx

3,04

Residence time

79days

Elevation

1m

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