HydroLAKES lake · #180127
Hakwatune Oya Reservoir
Surface area
2,52km²
Avg depth
5,5m
Volume
13,82km³
Shoreline
13,2km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- PolpithigamaKurunegala · Sri Lanka2.51 km²100.0% of lake
2 intersecting protected areas
Kahalla - Pallekele
IUCN IVSanctuary
2.40 km² overlap
Pallekele
IUCN IbReserved Forest
2.32 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
36 distinct species · 94 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Hakwatune Oya Reservoir : 9 espèces reliées par 5 interactions GloBI sur 2 types (connectance 13.9%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
2,52km²
Avg depth
5,5m
Volume
13,820km³
Watershed
68km²
Shoreline
13,2km
Shore dev. idx
2,35
Residence time
113days
Elevation
140m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.