A professional who tends washing, blanching, steaming, brining, peeling, or shucking machine that prepares shellfish for canning, freezing, or fresh packing. Respnsibilities include:

• Opens valves to admit water, steam, or air under pressure into machine vats, and adds specified quantities of additives, such as salt or food coloring.
• Lowers baskets of shellfish into vats by hand or hoist, or pushes cars of shellfish into steamer chamber.
• Closes door of steamer chamber, clamps fasteners over edges of door, and turns wing nuts to secure door.
• Starts conveyors that move product through machines or into weighing carts.
• May turn screws to adjust tension of peeler, using wrench.
• May tend machines that slice, grind, and tenderize clam meat.
• May be designated according to machine tended as Clam-Shucking-Machine Tender; Shrimp-Peeling-Machine Tender; or by shellfish processed as Clam Steamer; Crab Steamer; Oyster Washer; Shrimp Blancher.