Fleuve
Ribeiro de Eja ou de S. Miguel
⚠ Partial coverage : only 1 named segment matched so far. The real fleuve extends much further (Strahler order 7 indicates a major river). Cross-source ingest in progress — values below reflect only the matched segment.
Crosses 3 administrative regions : Castelo de Paiva, Marco de Canaveses, Penafiel
Max discharge
627,9m³/s
Max Strahler
7
Segments matched
1
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- Castelo de PaivaAveiro · Portugal1.1 kmin this dpt
- PenafielPorto · Portugal0.5 kmin this dpt
- Marco de CanavesesPorto · Portugal0.3 kmin this dpt
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
325 distinct species · 2 318 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Ribeiro de Eja ou de S. Miguel : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 97 interactions GloBI sur 6 types (connectance 13.1%, filtre Serrano α=0.2). 8 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)
Matched len.
1,6km
Max discharge
627,9m³/s
Max Strahler
7
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.