HydroLAKES lake · #1592
Onangue
Surface area
249,01km²
Avg depth
29,2m
Volume
7 267,69km³
Shoreline
824,6km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Ogooué et des LacsMoyen-Ogooué · Gabon247.89 km²100.0% of lake
1 intersecting protected areas
Bas Ogooue
IUCN Not ReportedWetland of International Importance (Ramsar Site)
247.89 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
310 distinct species · 1 303 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 Onangue : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 5 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
249,01km²
Avg depth
29,2m
Volume
7 267,690km³
Watershed
1 967km²
Shoreline
824,6km
Shore dev. idx
14,74
Residence time
1 209days
Elevation
16m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.