Callinectes exasperatus, commonly known as the is a species of crab belonging to the family Portunidae. These crabs are found in a variety of marine habitats, particularly in the western Atlantic Ocean.
Description and Characteristics
Callinectes exasperatus is characterized by its distinct features, including a broad, flattened carapace that can reach a maximum size of approximately 100 mm in width. The carapace is typically brown or greenish-brown in color, with a pattern of lighter and darker spots. Like other crabs, it has ten legs, with the last pair being flattened and paddle-like, which they use for swimming. These crabs are also equipped with a pair of prominent, sharp claws.
Habitat and Occurrence
Callinectes exasperatus is primarily found in shallow, coastal waters, inhabiting areas with sandy or muddy bottoms. Their distribution extends from the eastern coast of the United States, encompassing the Gulf of Mexico, down to the Caribbean Sea and the northern coast of South America. These crabs are known to thrive in a variety of marine zones, including the intertidal zone and the neritic zone. Callinectes exasperatus typically inhabits estuaries, bays, and lagoons, making it a prevalent presence in these aquatic ecosystems.
Taxonomy
Callinectes exasperatus is classified within the phylum Arthropoda, belonging to the Class: Malacostraca, Order: Decapoda, and Family: Portunidae. This family includes a diverse range of crabs, many of which are known for their flattened bodies and swimming abilities.
Feeding
Callinectes exasperatus is an opportunistic omnivore, feeding on a variety of organisms and organic matter. Their diet consists of fish, shellfish, algae, and other invertebrates. They actively hunt their prey, using their sharp claws to capture and crush food. Their feeding habits play a crucial role in maintaining the ecological balance of their habitat.
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