The method of collecting submarine resources is practised by a collecting vessel provided with a pair of buckets which are adapted to be raised or lowered alternately. The vessel is steered so that a meandering wake is formed, and for every passage of the vessel around the turning point of the meandering wake, one of the buckets is lowered from the vessel toward the bottom of a river or sea and concurrently the other bucket is raised from the bottom to the vessel. While one of the buckets is on the vessel for collection of gathered resources therefrom, the other bucket is dredging through the bottom of the water for accumulating resources therein. The system for carrying out the method is provided with winch means for hoisting the two buckets simultaneously in opposite directions, that is, up and down.
A method of collecting shellfish using a device riding on the bottom of the water and towed by a boat. The device has a number of obliquely extending tines and a net bag at the back of the tines for collecting shellfish which ride up onto the tines. The device is held by a rope without powered movement of the boat itself and moved selectively with respect to the boat by pulling on the rope through a winch, thereby moving the apparatus on the water bed to collect the shellfish.
