A professional who cultivates and harvests beds of shellfish, such as clams and oysters. Respnsibilities include:

• Lays out and stakes tide flats (ground beneath shallow water near shoreline).
• Piles up stone, poles, and mud, using farm tractor and hand implements to make dikes to control water drainage at low tide.
• Removes debris by hand and levels soil with tractor and harrow.
• Sows spat by hand or with shovel or sets out strings or baskets of shells onto which spat attaches.
• Covers seeded area with mixture of sand and broken shells or transfers seeded strings or baskets to growing area.
• Rigs net or star mop (mop of heavy rope yarn) and drags it over bed behind power boat to entangle and remove shellfish predators, such as crabs and starfish.
• Walks about bed at low tide, and scoops or digs shellfish and piles them onto barge or mud sled, using pitchfork or shovel.
• Packs shellfish, according to market specifications, in containers and returns small ones to bed.
• Poles barge to wharf at high tide or pulls it, using boat.
• Drags mud sled from bed, using tractor.
• May pour oil around bed and spread oil-treated sand over bed with shovel to form chemical barrier to shellfish predators.
• May reach from boat with rake-tongs and grope for shellfish by moving handles to open and close tongs.
• May supervise workers who cultivate and harvest bed.
• May negotiate with buyers for sale of crop.
• May be designated according to type of shellfish grown as Clam Grower; Oyster Grower.