HydroLAKES lake · #15859
Rajangana Tank
Surface area
16km²
Avg depth
3m
Volume
47,77km³
Shoreline
43,4km
Administrative coverage
4 dept-equivalent regions (GADM L2)
- GiribawaKurunegala · Sri Lanka8.25 km²51.7% of lake
- RajanganayaAnuradhapura · Sri Lanka7.03 km²44.1% of lake
- GalgamuwaKurunegala · Sri Lanka0.63 km²3.9% of lake
- ThambuttegamaAnuradhapura · Sri Lanka0.03 km²0.2% of lake
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
73 distinct species · 169 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Rajangana Tank : 17 espèces reliées par 14 interactions GloBI sur 2 types (connectance 7.4%, filtre Serrano α=0.2). 3 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
16,00km²
Avg depth
3,0m
Volume
47,770km³
Watershed
1 637km²
Shoreline
43,4km
Shore dev. idx
3,06
Residence time
19days
Elevation
69m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.