Abstract: A method for configuring a shellfish dredge is described. In an embodiment of the invention, a bag on a shellfish dredge has a front side and a back side and is attached to a tow. The front side of the bag has a pair of end peaks, one or more central peaks and an open area for catching shellfish. The end peaks are attached to the tow and the central peaks are attached to vertical chains connected to the tow. The bag is of a depth to catch and contain shellfish.

Abstract: The assembly comprises a frame-truss subassembly, to which are attached an internal subassembly for directing a flow of encountered water during dragging and a subassembly for collecting and discharging shellfish. An external subassembly is used for encasing the frame-truss subassembly together with the internal subassembly and the subassembly for collecting and discharging shellfish. The frame-truss subassembly includes a pair of lateral trusses, spaced at a distance commensurable with a width of the assembly. The internal subassembly includes an anterior panel with a forwards oriented concavity and a posterior panel with a backwards oriented concavity. The subassembly for collecting and discharging, disposed behind the internal subassembly includes a louver platform, a grid receptacle supported by the platform and a mechanism for topple over the grid receptacle. At least two sets of a multiplicity of hinged flaps are used.

Abstract: A method and device for collecting animals living on or in a water bottom such as crustaceans and shellfish and fish, wherein a collecting device (5) is moved over the bottom, which collecting device is provided with a device for moving the animals from or off the water bottom, in particular at least one tine (14) that can penetrate into the bottom and with which said animals can be taken or forced from or off the bottom, while said at least one tine is provided with a fluid outlet through which under pressure, a fluid, in particular water, is forced into the bottom, such that a top layer of the bottom is stirred up and animals living therein or thereon are dislodged, which animals are captured in the collecting device.