HydroLAKES lake · #14003
Lac · #14003
Surface area
13,18km²
Avg depth
1,4m
Volume
18,79km³
Shoreline
46,3km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Loire-AtlantiquePays de la Loire · France13.21 km²100.0% of lake
5 communes (L5)For countries with L5
- Saint-Malo-de-Guersac4.74 km²
- Crossac3.48 km²
- Saint-Joachim2.27 km²
- Montoir-de-Bretagne1.51 km²
- Donges1.21 km²
4 intersecting protected areas
Brière
IUCN VRegional Nature Park
13.21 km² overlap
Grande Brière, marais de Donges et du Brivet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.20 km² overlap
Grande Briere
IUCN Not ReportedWetland of International Importance (Ramsar Site)
12.99 km² overlap
Grande Brière et marais de Donges
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.95 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 237 distinct species · 2 693 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 Lac · #14003 : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 74 interactions GloBI documentées sur 4 types (connectance 10.0%, filtre Serrano α=0.2). Les 4 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
13,18km²
Avg depth
1,4m
Volume
18,790km³
Watershed
97km²
Shoreline
46,3km
Shore dev. idx
3,60
Residence time
135days
Elevation
0m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.