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Atlanticoncha ochracea (Say, 1817)
Tidewater Mucket

Tidewater Mucket collected from Wakeby Pond, Massachusetts (38 mm). Photo by staff (Georgia DNR – Wildlife Resources). Specimen courtesy of Georgia Museum of Natural History (GMNH9861).
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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G3G4

State Rank: S1

Element Locations Tracked in Biotics: Yes

SWAP 2015 Species of Greatest Conservation Need (SGCN): No

SWAP 2025 Species of Greatest Conservation Need (SGCN): Yes

2025 SGCN Priority Tier: High Conservation Concern

Element Occurrences (EOs) in Georgia: 2

Habitat Summary for element in Georgia: Large to small rivers in Atlantic Coastal Plain

SWAP 2025 Threat Matrix

Threat 1 Threat 2 Threat 3
General Threat Transportation & service corridors Climate change & severe weather Residential & commercial development
Specific Threat Shipping lanes Habitat shifting & alteration Commercial & industrial areas

SWAP 2025 Conservation Actions:

  • Action 1: Assess SGCN mussels and mussel communities in the Savannah River system
  • Action 2: Assess SGCN mussels and mussel communities in the Ogeechee River system
  • Action 3: Research genetics and taxonomy
  • Action 4: Identify host fish species
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