Ruisseau
Sågån
Crosses 4 administrative regions : Lilla Edet, Trollhättan, Uddevalla, Vänersborg
Total length
34km
Max discharge
1,1m³/s
Max Strahler
2
Segments matched
1
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- VänersborgVästra Götaland · Sweden2.8 kmin this dpt
- Lilla EdetVästra Götaland · Sweden2.8 kmin this dpt
- TrollhättanVästra Götaland · Sweden2.0 kmin this dpt
- UddevallaVästra Götaland · Sweden0.8 kmin this dpt
2 intersecting protected areas
SK 847-2005
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 57-2015
IUCN IVNature conservation agreement, Swedish Forest Agency
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
964 distinct species · 10 469 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Sågån : 21 espèces reliées par 38 interactions GloBI sur 5 types (connectance 10.8%, filtre Serrano α=0.2). 6 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
34km
Max discharge
1,1m³/s
Max Strahler
2
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.