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Gulf Salt Marsh Snake

Nerodia clarkii

Reptile

The Gulf Salt Marsh Snake is a nonvenomous water snake adapted to brackish marshes along Florida’s Gulf Coast.

These snakes remain near tidal creeks, salt-marsh pools, mangrove edges, and brackish estuaries.

They hide beneath wrack and logs by day, then hunt fish and crustaceans around favorable tides.

Close view of a Gulf Salt Marsh Snake showing striped scales
Habitat:

Mangroves and Salt Marshes, Estuaries and Bays, Coastal Waters

Area / Range:

Gulf Coast

Diet:

Small fish, shrimp, crabs, and other animals trapped in shallow tidal water.

Behavior:

They swim well, shelter in marsh debris, and forage mainly at night.

Night, Dusk

Active Times:
Best time to see:

Warm evenings near tidal pools, marsh wrack, oyster edges, and mangrove shorelines.

Florida Native Status:

Native

Conservation Status:

Locally secure where intact coastal marsh remains, but vulnerable to shoreline loss and altered tides.

Safety Level:

Low Risk

Safety Information:

Nonvenomous. Give the snake room to escape and never pick it up.

Benefits to Property:

They balance small fish and crustacean populations and signal functioning coastal wetlands.

Property Concerns:

They sometimes shelter beneath shoreline materials but do not damage landscaping or buildings.

Fun Fact:

Specialized salt glands near the eyes help this snake live in tidal marshes.

Wildlife Laws:

Do not kill or relocate wildlife from protected land. Shoreline work in marsh or mangrove habitat often requires permits.

Identification:

Color ranges from gray and brown to reddish orange. Many show four dark lengthwise stripes and a moderately stout body with keeled scales.

Credits:

Facts: Florida Museum. Images: habitat and portrait.

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