HydroLAKES lake · #168443
Lac de Guerlédan
Surface area
2,58km²
Avg depth
19,3m
Volume
49,8km³
Shoreline
23,1km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Côtes-d'ArmorBretagne · France1.72 km²66.7% of lake
- MorbihanBretagne · France0.86 km²33.3% of lake
5 communes (L5)For countries with L5
- Caurel1.17 km²
- Saint-Aignan0.86 km²
- Mûr-de-Bretagne0.34 km²
- Saint-Gelven0.21 km²
- Sainte-Brigitte0.00 km²
1 intersecting protected areas
Saint-Aignan (De)
IUCN IaForest Integral Biological Reserve
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
1 116 distinct species · 6 965 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 de Guerlédan : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 183 interactions GloBI sur 7 types (connectance 10.3%, filtre Serrano α=0.2). 35 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
2,58km²
Avg depth
19,3m
Volume
49,800km³
Watershed
670km²
Shoreline
23,1km
Shore dev. idx
4,05
Residence time
33days
Elevation
121m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.