Ontologia

HydroLAKES lake · #174308

手賀沼

Natural lakeJapanAsia 0 m

Surface area

3,33km²

Avg depth

3,7m

Volume

12,25km³

Shoreline

15,7km

Administrative coverage

Parent watershed

hybas-40805877801458 km² · upstream 13790 km²

2 dept-equivalent regions (GADM L2)

  • Abiko
    Chiba · Japan
    1.89 km²
    56.7% of lake
  • Kashiwa
    Chiba · Japan
    1.44 km²
    43.3% of lake

2 intersecting protected areas

  • Teganuma

    IUCN IV

    Prefectural Wildlife Protection Area

    3.33 km² overlap

  • Inba tega

    IUCN V

    Prefectural Natural Park

    3.32 km² overlap

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

Species present

525 distinct species · 8 593 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 593 obs · 1 cellules
Obs. / cellule
≥ 8 593
8 593–8 592
8 593–8 592
8 593–8 592
< 8 593

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 手賀沼 : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 12.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
71
Connectance
0.127
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

3,33km²

Avg depth

3,7m

Volume

12,250km³

Watershed

83km²

Shoreline

15,7km

Shore dev. idx

2,42

Residence time

91days

Elevation

0m

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