Rivière· 16 segments
Svarfaðardalsá
Crosses 2 administrative regions : Dalvíkurbyggð, Sveitarfélagið Skagafjörður
Total length
33km
Max discharge
10,8m³/s
Max Strahler
4
Segments matched
16
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- DalvíkurbyggðNorðurland eystra · Iceland39.7 kmin this dpt
- Sveitarfélagið SkagafjörðurNorðurland vestra · Iceland0.0 kmin this dpt
2 intersecting protected areas
Svarfaðardalur
IUCN VINature Reserve
Böggvisstaðafjall
IUCN VPublic Recreation Area or Country Park
1 page = 1 named river (aggregation of 16 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
47 distinct species · 58 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Svarfaðardalsá : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 5.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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
33km
Max discharge
10,8m³/s
Max Strahler
4
Segments matched
16
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.