| 摘要 |
A crab catcher for use with baited crab line includes a mesh box cage or basket with an opened end facing in the direction of motion of the boat. It is mounted in a frame alongside a moving boat, just under the water. Crab line is run over two rollers, forming a V shape, positioned above the open end of the basket; the line continues over the basket to a rear guide and off the back end. As the boat moves, crabs feeding on the baited line will let go as they near the surface. They are then swept into the open end of the basket by the flow of water and held there by the current. To increase the chance of entrapment, mesh plates are arranged about the open basket end to form a partial funnel and give a larger efffective opening. The basket lifts out of the frame for emptying it of crabs. The frame, which is adjustable for different sizes of boats, has hooks to go over the gunwales of the boat.
|
