Blue Crab
Callinectes sapidus · Also known as: Maryland blue crab, jimmy, sook, soft crab
Maryland’s signature crustacean. Swimming crabs of the coastal bays, Assateague marshes, and every crab house in Ocean City.
Quick facts
| Group | Crab |
|---|---|
| Likelihood nearby | ★★★★★ |
| Habitats | Salt marsh, Coastal bays, Inlet, Assateague State Park, Assateague National Seashore |
| Seasons (this coast) | spring, summer, fall |
How to recognize them
- Olive-to-blue-green shell with bright blue claws; females (“sooks”) show red tips on the claws.
- Last pair of legs flattened as paddles for swimming—Callinectes means “beautiful swimmer.”
Biology notes
- Omnivore and scavenger of bay bottoms and marsh edges; molts to grow (soft-shell stage).
- Depends on seagrass, marsh, and clean bay water for nursery habitat.
- Also profiled in the fishing NOAA Mid-Atlantic species directory for harvest orientation.
Where to see them around Ocean City
- Isle of Wight and Sinepuxent Bay shallows—look for shedding shells on shorelines.
- Assateague marsh guts while kayaking; crab pots marking channels around West Ocean City.
- Public crabbing docks and string-lining spots on calm warm days.
When to look
- Peak late spring through early fall; winter crabs bury in mud and are less visible.
Viewing tips & etiquette
- Handle with care—those claws pinch hard. Use tongs if examining shed shells only.
- Follow current Maryland recreational crabbing rules if you keep any.
