What is the Difference Between Blue Crab and Red Crab?

Blue crab and red crab are two distinct species of crabs with differences in appearance, habitat, and culinary use. Here are the main differences between the two:

1. Habitat: Blue crabs are found in brackish water, while red crabs reside in saltwater. Red crabs are native to the Atlantic Ocean, while blue crabs are endemic to the Cocos Island.
2. Size: Blue crabs are larger than red crabs.
3. Carapace Shape: Blue crabs have a serrated carapace, whereas red crabs have a round-shaped carapace.
4. Appendages: Appendages are larger compared to the body in red crabs, whereas blue crabs have smaller legs compared to the body.
5. Protein and Fat Content: Due to different habitats, red crabs have more protein and less total fat than blue crabs.
6. Culinary Use: Blue crabs are popular as seafood, but red crabs are not as widely consumed. However, some people find the tender, sweet meat of red crabs similar to snow crab.
7. Diet: Blue crabs are omnivores, while red crabs are predominantly herbivores but occasionally feed on animal matter.

Comparative Table: Blue Crab vs Red Crab

Blue crabs and red crabs, although both popular seafood choices, have several differences in terms of physical features, behavioral characteristics, and ecology. Here is a comparison table highlighting the differences between the two:

Blue crabs are known for their blue-green color and are found in the Atlantic Ocean, specifically around the western edge of Atlantic coastal waters. Red crabs, on the other hand, have a round-shaped carapace and larger appendages compared to their body. They are known for their annual migration to the sea for reproduction.