Rivière· 18 segments
Rio Arba
Crosses 1 administrative regions : Zaragoza
Total length
49km
Max discharge
11,5m³/s
Max Strahler
4
Segments matched
18
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- ZaragozaAragón · Spain69.5 kmin this dpt
2 intersecting protected areas
Sotos y mejanas del Ebro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lagunas y carrizales de Cinco Villas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 18 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
226 distinct species · 21 673 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Rio Arba : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 2 types (connectance 10.2%, filtre Serrano α=0.2). 5 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
49km
Max discharge
11,5m³/s
Max Strahler
4
Segments matched
18
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.