| 摘要 |
<P>PROBLEM TO BE SOLVED: To block a bait from being caught and eaten by an untargeted fish in a region at the depth shallower than that of the living region of a target fish before the bait sinks and reaches the living region of the target fish. <P>SOLUTION: The powdery film-forming agent covers the surface of the bait in water with a film (shown in Fig.2) to allow the film to be eaten by the untargeted fish living in the region at the depth shallower than that of the living region of the target fish before the bait sinks and reaches the living region of the target fish, and thereafter to allow the bait having sunk and reached to the living region of the target fish to be caught and eaten by the target fish to catch the fish. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
