Chama circinata, commonly known as the “fan-shaped jewel box clam,” is a species of marine bivalve mollusc belonging to the family Chamidae. This distinctive clam is known for its unique shape and vibrant colors.
Description & Characteristics
Chama circinata exhibits a distinctive fan-shaped shell, often displaying intricate patterns and vibrant hues. The shell is typically a deep purple or reddish-brown, sometimes adorned with white or yellow markings. Its surface can be smooth or slightly rough, and it often exhibits prominent radiating ridges or lines. The clam’s hinge is located on the dorsal side of the shell, and it has a small, triangular beak. The maximum size of a Chama circinata can reach around 10 cm in length.
Habitat and Occurrence
Chama circinata is typically found in shallow, tropical and subtropical waters, often attached to rocky substrates or coral reefs. It is a common inhabitant of the intertidal zone and the subtidal zone, inhabiting areas ranging from the low tide mark to depths of around 30 meters. Chama circinata plays a crucial role in the marine ecosystem, providing habitat for various other organisms and contributing to the overall biodiversity of coral reef communities. Its distribution encompasses a wide range of locations, including the western Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico. The species is prevalent in these marine zones, making it a readily observed inhabitant of these ecosystems.
Taxonomy
Chama circinata is classified as follows: Kingdom: Animalia, Phylum: Mollusca, Class: Bivalvia, Order: Venerida, Family: Chamidae.
Feeding
Chama circinata is a filter feeder, using its gills to collect microscopic food particles from the surrounding water. Its diet primarily consists of phytoplankton, algae, and other organic matter suspended in the water column. The clam’s efficient filtration process contributes to the overall water clarity and nutrient cycling within its habitat.
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