HydroLAKES lake · #12879
Järnsjön
Surface area
19,02km²
Avg depth
18m
Volume
341,7km³
Shoreline
32km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- ÅrjängVärmland · Sweden19.12 km²100.0% of lake
1 intersecting protected areas
2043727 Tokil
IUCN Not AssignedNature Reserve
0.01 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
243 distinct species · 721 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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).
Indicateurs du tissu écologique
Tissu écologique de Järnsjön : 35 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 61 interactions GloBI sur 7 types (connectance 6.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
19,02km²
Avg depth
18,0m
Volume
341,700km³
Watershed
106km²
Shoreline
32,0km
Shore dev. idx
2,07
Residence time
3 383days
Elevation
138m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.