Clinocardium

Genus of bivalves

Clinocardium is a genus of bivalve mollusks in the family Cardiidae, commonly known as cockles. These marine bivalves are characterized by their distinctively ribbed shells and are found in various marine environments.

Description

Members of the genus Clinocardium possess robust, rounded shells with prominent radial ribs. The shells are typically heart-shaped, which is reflected in the name "Clinocardium," derived from Greek words meaning "inclined heart." The external surface of the shell is often sculptured with concentric growth lines and radial ribs, providing both structural strength and a means of camouflage in their natural habitats.

Distribution

Clinocardium species are distributed across the northern Pacific Ocean, with a range extending from the coasts of Alaska down to California. They inhabit sandy and muddy substrates in intertidal and subtidal zones, where they burrow into the sediment for protection and feeding.

Ecology

These bivalves are filter feeders, drawing in water through their siphons to extract plankton and organic particles. Clinocardium species play a significant role in their ecosystems by contributing to the benthic community structure and serving as prey for various predators, including sea stars, birds, and humans.

Species

The genus Clinocardium includes several species, with Clinocardium nuttallii being one of the most well-known. This species, commonly referred to as the Nuttall's cockle, is notable for its large size and is often harvested for food.

Human Use

Clinocardium species, particularly Clinocardium nuttallii, are harvested for their edible meat. They are a traditional food source for indigenous peoples along the Pacific coast and are also collected for commercial purposes. The harvesting of these bivalves is regulated to ensure sustainable populations.

Conservation

While not currently listed as endangered, Clinocardium species face threats from habitat degradation, pollution, and overharvesting. Conservation efforts focus on habitat protection and sustainable harvesting practices to ensure the long-term viability of these bivalve populations.

Related pages

• Bivalvia
• Cardiidae
• Mollusca