5.5.3 The red crab trap (2), which is a nearshore trap with a diameter of 3 to 12 mm wire, has a conical large frame shape when viewed from the front, and is covered with a net made of PE Td260 27-stitch net with a mesh size of 125 mm or more, creating a single plastic entrance at the top. It is used to lure and catch target organisms by placing bait in the trap. Compared to the red crab trap (1) used in coastal areas, it is somewhat smaller in size and is used in nearshore areas. When arriving at the fishing ground, the traps set during the previous voyage are lifted first. During lifting, the engine of the boat is stopped, and the boat advances as the warp is reeled in by the power of the winch, with the warp guided by the guide roller located at the bow port side.