Ontologia

HydroLAKES lake · #421

Lake Nerka

Natural lakeUnited States of AmericaNorth America 17 m

Surface area

202,07km²

Avg depth

40,9m

Volume

8 260,2km³

Shoreline

284km

Administrative coverage

Parent watershed

hybas-8080301680419 km² · upstream 2220 km²

1 dept-equivalent regions (GADM L2)

  • Dillingham
    Alaska · United States
    203.18 km²
    100.0% of lake

1 intersecting protected areas

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

Species present

100 distinct species · 122 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

122 obs · 5 cellules
Obs. / cellule
≥ 91
91–90
25–90
3–24
< 3

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

Ecological tissue

Sample of 35 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 Lake Nerka : 29 espèces reliées par 40 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
40
Connectance
0.067
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

202,07km²

Avg depth

40,9m

Volume

8 260,200km³

Watershed

2 199km²

Shoreline

284,0km

Shore dev. idx

5,64

Residence time

2 186days

Elevation

17m

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