HydroLAKES lake · #145383
Polvijärvi
Surface area
8,48km²
Avg depth
10,9m
Volume
92,43km³
Shoreline
38,8km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- KainuuOulu · Finland8.54 km²100.0% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
284 distinct species · 730 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Polvijärvi : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 7 types (connectance 15.9%, filtre Serrano α=0.2). 13 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
8,48km²
Avg depth
10,9m
Volume
92,430km³
Watershed
386km²
Shoreline
38,8km
Shore dev. idx
3,76
Residence time
222days
Elevation
152m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.