Chama sinuosa, commonly known as the “sinuous chama,” is a species of marine bivalve mollusk belonging to the family Chamidae. This species is characterized by its distinctive shell morphology and its preference for specific marine habitats.
Description & Characteristics
Chama sinuosa exhibits a robust, irregularly shaped shell that can reach a maximum size of approximately 10 cm in length. The shell is typically thick and heavily ornamented, displaying a series of prominent, sinuous ridges. The color of the shell can vary, ranging from white to yellowish-brown, often with patches of reddish-brown or purplish hues. The valves of the shell are asymmetrical, with the left valve being larger and more convex than the right valve. The interior of the shell is often lined with a pearly luster, adding to its aesthetic appeal.
Habitat and Occurrence
Chama sinuosa is a primarily benthic species, inhabiting the shallow-water marine environments of the Indo-Pacific region. This species is commonly found attached to hard substrates, such as rocks, coral reefs, and submerged structures. The species prefers environments with strong currents and clear water, allowing for the efficient exchange of oxygen and nutrients. Chama sinuosa typically occurs in the intertidal zone and subtidal depths, ranging from the low tide mark to depths of approximately 20 meters. This species is particularly abundant in tropical and subtropical regions, inhabiting the warm, clear waters of the Indo-Pacific, making it a prevalent presence in the neritic zone of these ecosystems.
Taxonomy
Chama sinuosa belongs to the Class: Bivalvia, Order: Venerida, and Family: Chamidae. This classification places Chama sinuosa within a diverse group of marine bivalves, characterized by their typically sedentary lifestyle and their ability to firmly attach themselves to hard substrates. The family Chamidae, which includes the genus Chama, encompasses several species of chama clams, each exhibiting unique morphological and ecological characteristics.
Feeding
Chama sinuosa is a suspension feeder, relying on the filtering of water for its nutritional needs. The species employs its gills to capture and extract small food particles, including phytoplankton, zooplankton, and organic debris, suspended in the water column. The feeding behavior of Chama sinuosa plays a significant role in the ecological dynamics of its marine habitat, contributing to the overall health and productivity of the ecosystem.
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