DREDGES

Gear dragged along the bottom, usually to collect molluscs such as mussels, oysters, scallops, clams, etc. The shellfish are held in a sort of bag or sieve which allows the water, sand or mud to run out. Boat dredges are dredges of varying weight and size, but are usually fairly heavy, equipped with or without diving boards. ( Nedelec and Prado, 1990).