HydroLAKES lake · #153638
Gryttjen
Surface area
5km²
Avg depth
15,9m
Volume
79,45km³
Shoreline
15,7km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- HudiksvallGävleborg · Sweden2.78 km²55.3% of lake
- LjusdalGävleborg · Sweden2.25 km²44.7% of lake
1 intersecting protected areas
2000939 Svartviksberget
IUCN IaNature Reserve
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
439 distinct species · 5 134 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Gryttjen : 31 espèces reliées par 40 interactions GloBI sur 5 types (connectance 5.7%, filtre Serrano α=0.2). 7 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
5,00km²
Avg depth
15,9m
Volume
79,450km³
Watershed
29km²
Shoreline
15,7km
Shore dev. idx
1,98
Residence time
4 069days
Elevation
122m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.