HydroLAKES lake · #168855
Grand Réservoir de Vioreau
Surface area
1,45km²
Avg depth
3,1m
Volume
4,55km³
Shoreline
9,6km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Loire-AtlantiquePays de la Loire · France1.45 km²100.0% of lake
1 communes (L5)For countries with L5
- Joué-sur-Erdre1.45 km²
1 intersecting protected areas
Forêt, étang de Vioreau et étang de la Provostière
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.36 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 224 distinct species · 6 077 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Grand Réservoir de Vioreau : 36 espèces + 3 bulles famille, 94 interactions GloBI documentées sur 4 types (connectance 12.7%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
1,45km²
Avg depth
3,1m
Volume
4,550km³
Watershed
40km²
Shoreline
9,6km
Shore dev. idx
2,26
Residence time
94days
Elevation
31m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.