Ontologia

HydroLAKES lake · #174157

Hi-numa

Natural lakeJapanAsia -4 m

Surface area

9,13km²

Avg depth

7,2m

Volume

66,03km³

Shoreline

19,3km

Administrative coverage

Parent watershed

hybas-4080572040473 km² · upstream 473 km²

4 dept-equivalent regions (GADM L2)

  • Water body
    Ibaraki · Japan
    7.86 km²
    86.1% of lake
  • Hokota
    Ibaraki · Japan
    0.96 km²
    10.5% of lake
  • Ōarai
    Ibaraki · Japan
    0.31 km²
    3.4% of lake
  • Ibaraki
    Ibaraki · Japan
    0.00 km²
    0.0% of lake

3 intersecting protected areas

  • Hinuma

    IUCN IV

    National Wildlife Protection Area

    9.13 km² overlap

  • Oarai

    IUCN V

    Prefectural Natural Park

    9.12 km² overlap

  • Hinuma

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    9.07 km² overlap

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

Species present

450 distinct species · 1 612 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 612 obs · 1 cellules
Obs. / cellule
≥ 1 612
1 612–1 611
1 612–1 611
1 612–1 611
< 1 612

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

Ecological tissue

Sample of 31 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 Hi-numa : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 5 types (connectance 11.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
67
Connectance
0.113
Patrimoniales
2
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

9,13km²

Avg depth

7,2m

Volume

66,030km³

Watershed

459km²

Shoreline

19,3km

Shore dev. idx

1,80

Residence time

80days

Elevation

-4m

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