Rivière· 54 segments

Merced River

Crosses 4 administrative regions : Madera, Mariposa, Merced, Tuolumne

rivière

Total length

235km

Max discharge

40,8m³/s

Max Strahler

Segments matched

River geography4 admin regions · 0 communes

Parent watershed

hybas-7080601420694 km²

4 administrative regions crossed (GADM L2)

Mariposa
California · United States
175.4 km
in this dpt
Merced
California · United States
84.0 km
in this dpt
Madera
California · United States
8.7 km
in this dpt
Tuolumne
California · United States
0.0 km
in this dpt

14 intersecting protected areas

Yosemite National Park
IUCN Not Applicable
World Heritage Site (natural or mixed)
Yosemite
IUCN II
National Park
Yosemite
IUCN Ib
Wilderness Area
San Luis Nwr Complex
IUCN V
Easement
Merced River
IUCN Ib
Wilderness Study Area
North Grasslands
IUCN V
Wildlife Area
Merced, California
IUCN V
Wild and Scenic River
Grassland Reserve Program (GRP), Merced, CA
IUCN V
Reserve Program
Merced, California
IUCN V
Wild and Scenic River

5 more protected areassorted by area

Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Merced, CA
IUCN V
Watershed Protection
Magneson Farm
IUCN Not Assigned
Conservation Easement
Limestone Salamander
IUCN V
Ecological Reserve
Magneson Dairy
IUCN Not Assigned
Conservation Easement
Feliciana Mountain
IUCN V
Preserve

1 page = 1 named river (aggregation of 54 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

464 distinct species · 6 997 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 44 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Merced River : 34 espèces reliées par 89 interactions GloBI sur 4 types (connectance 8.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.086

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)