Dinocardium
Dinocardium is a genus of large, marine bivalve mollusks in the family Cardiidae, commonly known as cockles. These bivalves are characterized by their robust, heart-shaped shells and are found in sandy or muddy substrates in shallow waters.
Description[edit | edit source]
Members of the genus Dinocardium possess thick, heavy shells that are typically heart-shaped when viewed from the side. The shells are adorned with strong radial ribs and concentric growth lines. The interior of the shell is usually smooth and may exhibit a pearly luster. The hinge line of the shell features well-developed cardinal and lateral teeth, which help in the alignment and closing of the two shell valves.
Habitat and Distribution[edit | edit source]
Dinocardium species are primarily found in shallow marine environments, often buried in sandy or muddy substrates. They are distributed along the Atlantic coast of North America, from the Gulf of Mexico to the Caribbean Sea. These bivalves prefer warm, temperate waters and are commonly found in intertidal and subtidal zones.
Species[edit | edit source]
The genus Dinocardium includes several species, with the most well-known being:
- Dinocardium robustum - Known as the Atlantic giant cockle, this species is notable for its large size and robust shell.
Ecology[edit | edit source]
Dinocardium species are filter feeders, using their siphons to draw in water and extract plankton and other small organic particles. They play a significant role in the marine ecosystem by contributing to the benthic community structure and serving as prey for various predators, including fish, birds, and humans.
Human Use[edit | edit source]
Cockles, including those from the genus Dinocardium, are harvested for their meat, which is considered a delicacy in many cultures. They are also collected for their attractive shells, which are used in jewelry and decorative items.
Conservation[edit | edit source]
While Dinocardium species are not currently listed as endangered, their populations can be affected by habitat destruction, pollution, and overfishing. Conservation efforts focus on sustainable harvesting practices and protecting their natural habitats.
Related Pages[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD
