The present invention relates to a device that can reduce or birds - catch of turtles during fishing . This device has a means of preventing or blocking means (227) is mounted in a position to do with fish hooks (220) and the hook (227), protection (227) This is a seabird or turtle fishing by fishing hooks are can be prevented or reduced, and can reduce or prevent the seabird or turtle by turning the needle to be swallowed. This device includes a degradable component (226) which can be decomposed when it is placed in water, the blocking means when the decomposable components are decomposed out away from the position that is correlated with a hook or no longer exists, because the meat hooks to be able to catch. The degradable component (226) may be a retaining means or a mounting means. The degradable component may be of the whole or part of the blocking means.
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