Rivière· 68 segments

Saint Marys River

Crosses 6 administrative regions : Baker, Camden, Charlton, Duval, Nassau +1

rivière

Total length

256km

Max discharge

31,4m³/s

Max Strahler

Segments matched

River geography6 admin regions · 0 communes

Parent watershed

hybas-7080744930953 km²

6 administrative regions crossed (GADM L2)

Nassau
Florida · United States
134.7 km
in this dpt
Charlton
Georgia · United States
107.9 km
in this dpt
Baker
Florida · United States
33.5 km
in this dpt
Camden
Georgia · United States
31.6 km
in this dpt
Ware
Georgia · United States
14.7 km
in this dpt
Duval
Florida · United States
0.0 km
in this dpt

11 intersecting protected areas

Okefenokee
IUCN V
National Wildlife Refuge
Okefenokee National Wildlife Refuge
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
Okefenokee National Wildlife Refuge.Wilderness Area
IUCN Ib
National Wildlife Refuge
Cumberland Island National Seashore
IUCN V
Marine Protected Area
Cumberland Island
IUCN V
National Seashore
Trail Ridge Tract
IUCN V
Fee Simple
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Camden, GA
IUCN V
Conservation Easement
St Marys River Megasite
IUCN V
Easement
St Marys River Ranch
IUCN V
Conservation Easement

2 more protected areassorted by area

Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201601A
IUCN Not Assigned
Conservation Easement
Okefenokee National Wildlife Refuge.Wilderness Area
IUCN Ib
National Wildlife Refuge

1 page = 1 named river (aggregation of 68 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

49 distinct species · 56 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 Saint Marys River : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2).

Espèces affichées

Interactions affichées

Connectance

0.062

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)