Ontologia

HydroLAKES lake · #1381

Biwa

Lake controlJapanAsia 81 m

Surface area

673,48km²

Avg depth

41,6m

Volume

28 000km³

Shoreline

234,7km

Administrative coverage

Parent watershed

hybas-40806099602540 km² · upstream 2541 km²

11 dept-equivalent regions (GADM L2)

  • Lake Biwa
    Shiga · Japan
    638.93 km²
    94.9% of lake
  • Ōtsu
    Shiga · Japan
    13.92 km²
    2.1% of lake
  • Takashima
    Shiga · Japan
    13.67 km²
    2.0% of lake
  • Nishiazai
    Shiga · Japan
    5.56 km²
    0.8% of lake
  • Kusatsu
    Shiga · Japan
    0.88 km²
    0.1% of lake
  • Kinomoto
    Shiga · Japan
    0.33 km²
    0.0% of lake

7 intersecting protected areas

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

Species present

1 138 distinct species · 11 609 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 609 obs · 22 cellules
Obs. / cellule
≥ 2 780
902–2 779
514–901
388–513
< 388

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 Biwa : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 2 types (connectance 9.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
59
Connectance
0.099
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

673,48km²

Avg depth

41,6m

Volume

28 000,000km³

Watershed

3 672km²

Shoreline

234,7km

Shore dev. idx

2,55

Residence time

2 897days

Elevation

81m

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