Truncate donax, Abrupt wedge shell, Wedge clam, Coquina clam
The truncate donax, abrupt wedge shell, wedge clam or coquina clam (Donax trunculus ), is a bivalve species in the family Donacidae. It is native to the Mediterranean and Atlantic coasts of western Europe, as well as the Red sea, where it is consumed as a food. The wedge clam prefers to live at depths of 0-2m and in clean, fine, and well sorted sand. These clams are efficient and rapid burrowers, and their survival relies heavily on the composition of the sand they burrow in. Their burrowing times vary based on the coarseness of the sand, which reflects their prevalence in these fine-sanded environments. The wedge clam is a popular food item for human consumption, but can carry heavy metals and hydrocarbon contaminations. As they are commonly consumed raw or lightly cooked, these contaminants are commonly present at the time of consumption. Despite this, the wedge clam is an efficient bioindicator of heavy metals and hydrocarbon contaminants in their environment.
