| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable water depth in fishing field to accurately be grasped without increasing trouble about finding a fish swimming region out and also to enable the rapid and more accurate finding of a fish swimming region to be performed. SOLUTION: This float features installing a bathometer capable of measuring water depth by being sunk within the float itself and being provided with a hook 6 located below the float so as for a sinker to be attachable. The hook is used for dropping the float in the water on the way to fishing while leaving the float being attached to a fishing line by attaching the sinker and may be made to be for common use in the case that the hook has been already attached for a swivel.</p> |
