Broadcast spawning occurs during late spring and summer. Some years many young are produced and in other years spawning doesn't hardly take place. An average number of young are produced each year usually in July or early August. The larval stage lasts for eight weeks in both regions but after settlement, differences again are found. Clams in the south grow rapidly at first but then decline and reach a smaller adult size.
Razor clams are important as a food resource and the sport of clam digging is also recreational.
The starry flounder eats razor clams. Clams usually are found close to the surface and most clam diggers look for little dimples in the sand or for a shimmering which indicates some activity beneath the surface. Clammers are either instantly rewarded or digging frantically trying to keep up with the rapdily retreating clam. If you damage a razor clam while digging then keep it because it will die. Clammers should be aware of red tides when digging for razor clams.