Rivière· 47 segments
Río Grande de San Miguel
Crosses 9 administrative regions : Chirilagua, Concepción Batres, El Tránsito, Ereguayquín, Jucuarán +4
Total length
125km
Max discharge
47,5m³/s
Max Strahler
4
Segments matched
47
River geography9 admin regions · 0 communes
9 administrative regions crossed (GADM L2)
- San MiguelSan Miguel · El Salvador92.3 kmin this dpt
- Concepción BatresUsulután · El Salvador30.9 kmin this dpt
- ChirilaguaSan Miguel · El Salvador10.3 kmin this dpt
- UsulutánUsulután · El Salvador9.9 kmin this dpt
- El TránsitoSan Miguel · El Salvador3.7 kmin this dpt
- JucuaránUsulután · El Salvador3.5 kmin this dpt
- UluazapaSan Miguel · El Salvador1.9 kmin this dpt
- EreguayquínUsulután · El Salvador1.4 kmin this dpt
- Santa MaríaUsulután · El Salvador0.0 kmin this dpt
9 intersecting protected areas
Xiriualtique-Jiquilisco
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Complejo Bahía de Jiquilisco
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Area Natural Protegida Laguna del Jocotal
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Laguna El Jocotal
IUCN Not ReportedSpecies/Habitat Management Area
Habitat Management Area
San Juan Mercedes Silva
IUCN VTerrestrial Protected Landscape
Isla Santa Rita 1
IUCN Not ReportedNatural Protected Area
El Paso Las Iguanas
IUCN IVHabitat Management Area
Isla Santa Rita 1
IUCN Not ReportedNatural Protected Area
1 page = 1 named river (aggregation of 47 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
103 distinct species · 964 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Río Grande de San Miguel : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 5 bulles famille, 20 interactions GloBI documentées sur 3 types (connectance 8.7%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
125km
Max discharge
47,5m³/s
Max Strahler
4
Segments matched
47
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.