A hook, fishhook, or fishing spear with at least one barb fixed to the hook, fishhook, or fishing spear with an epoxy that disbonds upon the application of an electric current. Components of the barb and the hook, fishhook, or fishing spear form a loop of electrically conductive material that carries a current induced by the application of a magnetic field generated by a magnetic field generator external to the hook, fishhook, or fishing spear. A current may be generated to disband the barb from the hook, fishhook, or fishing spear in order to facilitate the removal of the hook, fishhook, or fishing spear from an impaled fish.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Such magnets may be electromagnets powered by batteries in some embodiments.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Such magnets may be electromagnets powered by batteries in some embodiments.

A fish gig is provided. The fish gig may include a retractable barb, wherein the retractable barb is operably connected to a handle configured for extending and retracting the retractable barb.

A fish gig is provided. The fish gig may include a retractable barb, wherein the retractable barb is operably connected to a handle configured for extending and retracting the retractable barb.

The invention relates to a speargun handle (1) having a reinforced trigger guard (5) which creates a chamber (6) in which there is a trigger lever (7). The handle (1) has a retaining member (10) with chambers (12) surrounded by a non-slip retaining cover (11). It also has a loading aid (17), a front end (23) for fitting a tube (2), incorporated deflectors (25) for lines and a line holder (32). The handle (1) further comprises a reverse trigger mechanism, wherein the trigger lever (7) is located outside the cartridge (26). The retaining hook (27) may alternatively have a notch for a pivot pin (38) which receives the developing stresses derived from the shaft's (4) launching.

The speargun for underwater fishing comprises a metal spear provided with one or more engagement heels, a hand grip having a retaining mechanism for retaining the spear and provided with trigger for releasing the spear, a barrel having an upper longitudinal guide that slidingly supports the spear, a terminal head for engaging at least one rubber band for the propulsive thrust of the spear, the head having a front recess where at least one permanent magnet for attracting said spear is positioned.

The speargun for underwater fishing comprises a spear, a hollow hand grip having therewithin a retaining mechanism for retaining the spear, a snap trigger of the retaining mechanism for the release of the spear, a hollow barrel fixed to the hand grip, a terminal head fixed to the barrel and supporting at least one lateral pulley on which a rubber band for the propulsive thrust of the spear is wound, and a housing for engaging one end of the rubber band, formed in a single piece with a wall of the hand grip and located in a transversal geometric plane of the speargun which includes the axis of the barrel and cuts the speargun into an upper half-part and a lower half-part.

In aspects of the invention, an arrow slide is provided with a body having a first opening with a plurality of first edges arranged in a generally triangular configuration within which a first diameter can be received, a second opening with a plurality of second edges arranged in the generally triangular configuration within which the first diameter can be received; sidewalls linking corresponding ones of the first plurality of edges to the plurality of second edges to create a passageway extending from the first opening to the second opening through which an arrow can slide; and a string mount to which a bowfishing line can be joined.

In aspects of the invention, an arrow slide is provided with a body having a first opening with a plurality of first edges arranged in a generally triangular configuration within which a first diameter can be received, a second opening with a plurality of second edges arranged in the generally triangular configuration within which the first diameter can be received; sidewalls linking corresponding ones of the first plurality of edges to the plurality of second edges to create a passageway extending from the first opening to the second opening through which an arrow can slide; and a string mount to which a bowfishing line can be joined.