Ruisseau· 11 segments
Marecchia
Crosses 3 administrative regions : Arezzo, Pesaro E Urbino, Rimini
Total length
56km
Max discharge
6,6m³/s
Max Strahler
2
Segments matched
11
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- Pesaro E UrbinoMarche · Italy31.3 kmin this dpt
- RiminiEmilia-Romagna · Italy17.1 kmin this dpt
- ArezzoToscana · Italy2.4 kmin this dpt
9 intersecting protected areas
Evaporitic Karst and Caves of Northern Apennines
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
Versanti occidentali e settentrionali del Monte Carpegna, Torrente Messa, Poggio di Miratoio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Versanti occidentali e settentrionali del Monte Carpegna, Torrente Messa, Poggio di Miratoio
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rupi e Gessi della Valmarecchia
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rupi e Gessi della Valmarecchia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Torriana, Montebello, Fiume Marecchia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Special Areas of Conservation (Habitats Directive)
Fiume Marecchia a Ponte Messa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Fiume Marecchia a Ponte Messa
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 11 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
275 distinct species · 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Marecchia : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 12 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
56km
Max discharge
6,6m³/s
Max Strahler
2
Segments matched
11
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.