A method for processing a live fish can include: determining a set of fish attributes of a fish, optionally sorting the fish based on the set of fish attributes, euthanizing the fish, exsanguinating the fish, and/or any other suitable steps. In variants, the method can additionally or alternatively include: discarding the fish after sorting, further processing the fish, and/or tracking the fish. However, the method can additionally and/or alternatively include any other suitable elements.

A fish stunning apparatus comprises a fish feed-in device, a fish receiving space, which is loadable with fish in the head first position, a fish positioning means, which engages on the fish head and, for the purpose of stunning the fish, defines a releasable temporary stop position of the fish, said apparatus also comprises a stunning means for acting on the fish head, a trigger device for determining the stop position and for activating the stunning means, and further comprises a control device for controlling operation. Locations on the fish head which come to rest in the fish receiving space, depending on the size of the head and/or body of the fish, should be positioned optimally for the purpose of stunning. A fish position actuating element can be controlled by means of a fish-size determining device and is connected to a positioning element of the fish positioning means for local adjustment, as a result of which any fish head can be moved automatically, according to the size of the fish, into a consistent position in relation to the stunning means. A trigger unit, which can be installed in the fish stunning apparatus, comprises the fish position actuating element with a trigger abutment element, formed by the positioning element, and also comprises a controllable control actuator for actuating the fish position actuating element. According to a method for activating the stunning means, a fish-size-related control value, which represents the size of any fish, is determined and the positioning element is put automatically, according to the size of the fish, into an associated starting position.

A method for processing a live fish can include: determining a set of fish attributes of a fish, optionally sorting the fish based on the set of fish attributes, euthanizing the fish, exsanguinating the fish, and/or any other suitable steps. In variants, the method can additionally or alternatively include: discarding the fish after sorting, further processing the fish, and/or tracking the fish. However, the method can additionally and/or alternatively include any other suitable elements.

An electric gaff hook device includes an elongated pole having at least one hook that is positioned along the distal end. Each of the hooks including a curved shape, a sharpened tip, and a plurality of electrodes. A controller, user interface, power source and power output unit are provided along the pole. The power output unit receives power from the power source and sends amplified power to the plurality of electrodes based on a command from the user interface. The power discharged by the electrodes functions to stun and immobilize a fish for between about 1 and 3 minutes. A spike is provided along the distal end of the pole and includes a plurality of apertures forming a channel for receiving an elongated wire to euthanize and perform ike jime on the stunned fish.

A method for processing a live fish can include: determining a set of fish attributes of a fish, optionally sorting the fish based on the set of fish attributes, euthanizing the fish, exsanguinating the fish, and/or any other suitable steps. In variants, the method can additionally or alternatively include: discarding the fish after sorting, further processing the fish, and/or tracking the fish. However, the method can additionally and/or alternatively include any other suitable elements.

A fish stunning device includes a submersible main body with a watertight interior that houses an electronic suite. The main body is securable onto a fishing line and includes internal weights for traveling underwater along the length of the line. A plurality of resilient malleable protrusions each having an electrode extend outward from the main body. Each of the electrodes is connected to the electronic suite and function to impart an electrical shock onto a fish that is engaged with a hook on the end of the fishing line. The electronic suite has a power source for receiving and storing an electrical charge and a power output unit for amplifying and discharging the electrical charge to the electrodes. A system controller communicates with a pressure switch and a user interface to selectively activate the electrodes underwater.

The present invention relates to a fish stunning apparatus, comprising a fish supply device adapted for conveying fish head first, a fish receiving space (10) configured by means of the fish supply device, to be loaded with fish in a head first position, a positioning means (11) with a positioning means (12) engaging the fish head, which is adapted to hold the fish in a stop position in the fish receiving space (10) for stunning the fish and to release the fish after stunning, a stunning means (13) acting on the head-side region of the fish for stunning the fish in the stop position, a trigger device (16) adapted for determining the stop position and for triggering the effect of the stunning means (13) on the head-side region of the fish, a control unit adapted for controlling the positioning device (11), the trigger device (16) and the stunning means (13), a fish size sensing device adapted for determining the fish size, a controllably moveable position actuator, which is adapted for locally adjusting the fish positioning means (12) in such a way that the respective position of the fish head relative to the stunning means (13) in the stop position is adapted to be adjusted in a self-actuating manner depending on the fish size and is characterised in that the fish size sensing device comprises a fish length sensing device adapted for determining the fish length and the fish size sensing device is configured for determining the fish size on the basis of the fish length. The invention further relates to a method for automatedly stunning fish.

A method for processing a live fish can include: determining a set of fish attributes of a fish, optionally sorting the fish based on the set of fish attributes, euthanizing the fish, exsanguinating the fish, and/or any other suitable steps. In variants, the method can additionally or alternatively include: discarding the fish after sorting, further processing the fish, and/or tracking the fish. However, the method can additionally and/or alternatively include any other suitable elements.

A fish sedation device that reliably energizes and sedates fish and enables a slaughter operation to be satisfactorily performed by energizing fish on a mat from electrodes via high resistance water which has a higher electrical resistance than that of the fish.