HydroLAKES lake · #12608
Arrajärvi
Surface area
12,49km²
Avg depth
20,4m
Volume
255,05km³
Shoreline
51,4km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- KymenlaaksoSouthern Finland · Finland7.17 km²57.1% of lake
- Päijänne TavastiaWestern Finland · Finland5.40 km²42.9% of lake
1 intersecting protected areas
Private Nature Reserve
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
391 distinct species · 6 158 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Arrajärvi : 25 espèces reliées par 68 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 8 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
12,49km²
Avg depth
20,4m
Volume
255,050km³
Watershed
24 058km²
Shoreline
51,4km
Shore dev. idx
4,10
Residence time
14days
Elevation
54m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.