Beth Dalzell of Brick, NJ, gathers blue mussels, Mylilus edulis, from an M113 armored personnel carrier (APC) on the Sea Girt Reef in 60' of water in the Atlantic Ocean off Sea Girt, New Jersey, USA. Each M113 had a crew of two, a commander and a driver, and could carry eleven men and their equipment. The driver sat on the L/H side of the vehicle, and had a good field of vision through four periscopes wich were mounted in the cupola. The commander was situated centrally in the vehicle and had a fully rotating cupola with five periscopes. The commander also acted as the gunner and operated the .50 cal machine gun, this could be rotated through a full 360 degrees to give an all-round field of fire if needed. The ammo for the 50 was stored in portable boxes behind the infantrymen's seats.