Ruisseau· 6 segments
Simested Å
Crosses 4 administrative regions : Mariagerfjord, Rebild, Vesthimmerland, Viborg
Total length
57km
Max discharge
3,9m³/s
Max Strahler
3
Segments matched
6
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- ViborgMidtjylland · Denmark13.7 kmin this dpt
- RebildNordjylland · Denmark9.6 kmin this dpt
- VesthimmerlandNordjylland · Denmark7.2 kmin this dpt
- MariagerfjordNordjylland · Denmark5.5 kmin this dpt
10 intersecting protected areas
Special Areas of Conservation (Habitats Directive)
Viborg Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Vesthimmerlands Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Mariagerfjord Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Viborg Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Rebild Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Hjarbæk Fjord og Simested Fjord
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rebild Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Mariagerfjord Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
1 more protected areassorted by area
§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 061 distinct species · 7 605 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Simested Å : 18 espèces reliées par 34 interactions GloBI sur 7 types (connectance 16.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
57km
Max discharge
3,9m³/s
Max Strahler
3
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.