Blue crab (Callinectes sapidus) from Narragansett Bay, Rhode Island.
Creator: NOAA via Wikimedia Commons
Licence: Public domain
View image sourceSpecies record
Blue Crab
Callinectes sapidus
Explore the Blue Crab (Callinectes sapidus) species record in The Ark Is Earth, including classification, habitat, distribution, conservation information, and sources.
Summary
Atlantic blue crabs are native to the western Atlantic from Cape Cod to northern Argentina; adults are occasionally found as far north as Nova Scotia. Introduced populations are established in parts of northern Europe and the Mediterranean, and the species has also been reported in the Black Sea. Their rear legs are flattened into paddles, and they eat clams, oysters, smaller crustaceans, fish remains, and detritus.
Classification in this archive
- Kingdom: Animals
- Phylum: Arthropods
- Class: Crabs, lobsters and relatives
- Order: Decapoda
- Family: Portunidae
- Genus: Callinectes
- Species: Callinectes sapidus
Habitat and distribution
Selected documented locations — not a complete species range.
- Habitat
- estuaries, tidal marshes, coastal waters
- Selected regions
- Africa, Asia, Europe, North America, South America
Conservation status
Conservation status not recorded.
Did you know?
- A blue crab’s rear legs are shaped like paddles and help it swim.
More images
Blue crab (Callinectes sapidus) photographed at Caorle, Italy.
Creator: Holger Krisp
Licence: CC BY 3.0
View image sourceSources and attribution
Distribution
SERC NEMESIS — Callinectes sapidus native and introduced rangeAccessed 2026-09-25
General
Chesapeake Bay Program — Blue crabAccessed 2026-09-24
General
NOAA Fisheries — Blue CrabAccessed 2026-09-24
General
U.S. Fish & Wildlife Service — Blue CrabAccessed 2026-09-17
Images
Wikimedia Commons — Blue Crab gallery imageAccessed 2026-09-27
Images
Wikimedia Commons — Blue Crab imageAccessed 2026-09-17