A professional who cultivates and harvests shellfish by performing any combination of following duties. Respnsibilities include:

• Loads marking stakes on barge, and moves barge to shellfish bed.
• Drives stakes into mud in pattern specified by shellfish grower, using sledgehammer.
• Sows spat by scattering it within staked enclosure.
• Covers seeded area with mixture of sand and broken shells of shellfish onto which spat attaches, using shovel.
• Wades in shellfish bed and digs or rakes for shellfish, using rake, fork, and spade.
• Treads in water and feels for shellfish with bare feet, gathers shellfish, and drops them into container.
• Reaches from boat with rake-tongs and gropes for shellfish by moving handles to open and close tongs.
• Drags brail rod (pipe with series of hooks attached) behind powerboat to pull shellfish from mud.
• Rigs and lowers dredge into shellfish bed from mast and boom of powerboat, using block and tackle.
• Hoists dredge and pulls dump ring to empty catch.
• Picks out market-size shellfish from catch, and replants smaller ones.
• Packs and ices marketable shellfish in containers for shipment.
• Unloads loose shellfish from boat, using shovel.
• May be designated according to type of shellfish bed worked as Clam-Bed Worker; Oyster-Bed Worker; shellfish harvested as Fisher, Clam; Fisher, Oyster; or task performed as Clam Digger; Oyster Unloader.
• May be designated. Respnsibilities include:
• Clam Tonger; Clam Treader; Fisher, Mussel; Fisher, Quahog; Fisher, Scallop; Oyster Dredger; Oyster Picker; Oyster Tonger; Oyster Worker; Scallop Dredger; Scallop Raker.