Ontologia

HydroLAKES lake · #170722

Ō Numa

Natural lakeJapanAsia -2 m

Surface area

4,93km²

Avg depth

2,6m

Volume

12,85km³

Shoreline

9,5km

Administrative coverage

Parent watershed

hybas-40800375704939 km² · upstream 4939 km²

1 dept-equivalent regions (GADM L2)

  • Wakkanai
    Hokkaido · Japan
    4.94 km²
    100.0% of lake

2 intersecting protected areas

  • Oonuma

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    4.91 km² overlap

  • Koetoi onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    4.91 km² overlap

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

Species present

66 distinct species · 285 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

285 obs · 1 cellules
Obs. / cellule
≥ 285
285–284
285–284
285–284
< 285

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

Ecological tissue

Sample of 22 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 Ō Numa : 19 espèces reliées par 35 interactions GloBI sur 3 types (connectance 15.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
35
Connectance
0.151
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

4,93km²

Avg depth

2,6m

Volume

12,850km³

Watershed

244km²

Shoreline

9,5km

Shore dev. idx

1,21

Residence time

20days

Elevation

-2m

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