Their flavour is best if they're bought alive and cooked when very fresh. Oysters, mussels, clams, whelks and winkles are sold live or cooked; scallops are sold ready-prepared (with the intestines ...
This suggested they were collected from the seafloor while the clams were alive. Today, Callista chione is most often fished by dredging, using small boats, or gathered by scuba divers in waters ...