Atlantic Blue Crab
Callinectes sapidus
This record describes Callinectes sapidus (species). Recorded family: Portunidae. Recorded order: Decapoda.
Identification and Appearance
Blue Crabs of the South Atlantic Bight
Identification notes
Blue Crabs of the South Atlantic Bight
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Malacostraca
- Order
- Decapoda (Crabs, Crayfishes, Lobsters, Prawns, and Shrimp)
- Family
- Portunidae (Swimming Crabs)
- Genus
- Callinectes
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
About Crabs, Crayfishes, Lobsters, Prawns, and Shrimp: the wider group
Order-level background for Decapoda, the group containing Callinectes sapidus. Species-specific details appear above.
Group overview
Decapoda includes ~15,000 described species of crabs, lobsters, shrimp, and crayfish. Although primarily marine and freshwater, some species like hermit crabs and coconut crabs are fully terrestrial.
Ecological role of the group
Crayfish are keystone species in freshwater ecosystems, influencing water clarity, sediment dynamics, and plant communities. Hermit crabs play vital roles in nutrient cycling on tropical islands.
Economic and practical significance of the group
The global shrimp industry alone is worth over $45 billion annually. Crayfish are important aquaculture species and invasive crayfish cause ecological damage estimated in the hundreds of millions annually in Europe and North America.
Recorded sources for this group: FAO fisheries statistics, freshwater ecology. Imported estimates may describe particular regions or reporting periods.
Photos of Atlantic Blue Crab (5)
Photo credits: Contributed by Graham Montgomery; Additional contributions by Blocky