Species · GBIF taxon 9596149
Fiddler Crab
Leptuca pugilatorAlso known as Sand Fiddler Crab, Atlantic Sand Fiddler Crab, Calico Fiddler
Sand fiddler crabs emerge in massive, synchronized waves from their intertidal burrows as the tide recedes to feed and display. Males wave their oversized, brightly colored major claws in rhythmic patterns to attract females and ward off rivals. These industrious crabs play a vital role in coastal salt marshes by aerating the sediment through their constant burrowing.
IntertidalCrustaceanBurrowing
- diet
- Detritus, algae, and organic microbes filtered from sand
- family
- Ocypodidae
- threats
- Habitat loss, coastal development, pollution, and rising sea levels
- life Span
- 1 to 2 years
NE
Safe to observe at a normal distance.
- Watch from a distance: Approach mudflats slowly, as these crabs are highly sensitive to shadows and vibrations.
- Look for feeding pellets: Search for tiny balls of sand discarded around burrow entrances after they filter out food.
- Observe the wave: Watch males during low tide as they wave their large claws in unison to attract mates.