Dosinia powelli is a species of saltwater clam, a type of bivalve mollusk. It is a common inhabitant of certain marine environments, playing a role in the delicate balance of these ecosystems.
Description & Characteristics
Dosinia powelli is a relatively large clam, reaching a maximum size of about 70 mm in length. The shell is generally oval in shape, with a smooth exterior and a slightly indented margin. It is typically a pale yellowish-brown color, although the specific coloration can vary depending on the environment. The shell of Dosinia powelli, like that of other bivalves, is composed of calcium carbonate and plays a crucial role in protecting the soft, vulnerable body of the clam.
Habitat and Occurrence
Dosinia powelli is a benthic organism, meaning it lives on the seabed. This clam is typically found in shallow to moderately deep waters, with a depth range of about 5 to 50 meters. Its preferred habitat includes sandy or muddy bottoms, which provide the necessary substrate for burrowing. The species is primarily found in the neritic zone, a marine region that extends from the shoreline to the edge of the continental shelf. This zone is characterized by relatively shallow waters, allowing for ample sunlight penetration and diverse marine life.
Taxonomy
Dosinia powelli belongs to the family Veneridae, a diverse group of clams commonly known as Venus clams. These clams are further classified within the Order Venerida and Class Bivalvia, reflecting their evolutionary relationships to other bivalve species.
Feeding
Dosinia powelli is a filter feeder, a common feeding strategy among bivalve mollusks. The clam utilizes its gills to filter out microscopic food particles, such as phytoplankton and detritus, from the surrounding water. This process involves drawing water into the mantle cavity, where the gills trap the food particles, and expelling the filtered water. This feeding behavior allows Dosinia powelli to play a significant role in the marine food web, acting as a primary consumer and contributing to the overall nutrient cycling within its ecosystem.
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