A method is described to compute and display the line length required to troll a fishing rig at a desired depth. Line lengths and respective line angles measured at the surface are used to calculate an approximation to the actual underwater curve profile of the trolled fishing line, which is used to determine the line length required to troll at a desired depth or to determine the resulting depth for a specified line length. An embodiment is described which requires only a smartphone and software beyond standard trolling fishing equipment. This embodiment uses the embedded sensors of the smartphone to collect fishing line angle measurements. Also described is a method and devices to automatically collect the line angles and line lengths using a wireless fishing line inclinometer device and a wireless line counter, which is especially useful and convenient when software is implemented on a mounted marine electronics unit.

A method is described to compute and display the line length required to troll a fishing rig at a desired depth. Line lengths and respective line angles measured at the surface are used to calculate an approximation to the actual underwater curve profile of the trolled fishing line, which is used to determine the line length required to troll at a desired depth or to determine the resulting depth for a specified line length. An embodiment is described which requires only a smartphone and software beyond standard trolling fishing equipment. This embodiment uses the embedded sensors of the smartphone to collect fishing line angle measurements. Also described is a method and devices to automatically collect the line angles and line lengths using a wireless fishing line inclinometer device and a wireless line counter, which is especially useful and convenient when software is implemented on a mounted marine electronics unit.

This publication relates to a system and a method for hauling fish gear, such as longlines, gillnets or demersal seine nets, into a fishing vessel (10) and collecting and transporting catch (12) to a working station, using a hatch (16) in a part of a hull exposed to the sea and arranged in a water line region (27) of the vessel (10); a vertical well (18) for receipt of at least pa rt of the catch through the hatch (16); a transport device for transporting the catch to the deck; and with means for bringing the catch to flow towards the transport device. The transport device (24,25) used is arranged in a shaft (19), separated from the well (18), and a closeable opening or hatch (23) is arranged in a wall or bulkhead (21) between the well (18) and the shaft (19) 127 and with devices for opening and closing the opening or hatch (23), and a bottom (22) in the shaft (19).

This publication relates to a system and a method for hauling fish gear, such as longlines, gillnets or demersal seine nets, into a fishing vessel (10) and collecting and transporting catch (12) to a working station, using a hatch (16) in a part of a hull exposed to the sea and arranged in a water line region (27) of the vessel (10); a vertical well (18) for receipt of at least pa rt of the catch through the hatch (16); a transport device for transporting the catch to the deck; and with means for bringing the catch to flow towards the transport device. The transport device (24,25) used is arranged in a shaft (19), separated from the well (18), and a closeable opening or hatch (23) is arranged in a wall or bulkhead (21) between the well (18) and the shaft (19) 127 and with devices for opening and closing the opening or hatch (23), and a bottom (22) in the shaft (19).

A pole-and-line fishing device includes a rotary drum, a drive motor, an electromagnetic clutch, an encoder for detecting direction and speed of rotation of the rotary drum, and a control unit for controlling the electromagnetic clutch. The drive motor can rotate the rotary drum in a forward winding direction until a load reaches a transmission torque, and when load exceeds the transmission torque, the drum can rotate in a reverse unwinding direction. In a reverse torque operation region, a winding torque is set to a preset Winding Force 2 Reference Rotation Speed relative to a Winding Force 1, and is changed based on a change of rotation speed of the drum. The ratio of winding torque increase/decrease is determined by a torque rising curve. The winding torque switches to Winding Force 3 to perform a constant torque operation when speed of the drum reaches Winding Force 3 Reference Rotation Speed.

A pole-and-line fishing device includes a rotary drum, a drive motor, an electromagnetic clutch, an encoder for detecting direction and speed of rotation of the rotary drum, and a control unit for controlling the electromagnetic clutch. The drive motor can rotate the rotary drum in a forward winding direction until a load reaches a transmission torque, and when load exceeds the transmission torque, the drum can rotate in a reverse unwinding direction. In a reverse torque operation region, a winding torque is set to a preset Winding Force 2 Reference Rotation Speed relative to a Winding Force 1, and is changed based on a change of rotation speed of the drum. The ratio of winding torque increase/decrease is determined by a torque rising curve. The winding torque switches to Winding Force 3 to perform a constant torque operation when speed of the drum reaches Winding Force 3 Reference Rotation Speed.

A fishing system includes a submersible fishing implement for being received in a body of water and configured for capturing one or more fish. An implement driver is configured to drive movement of the submersible fishing implement through the body of water. A data collection system includes one or more sensors for sensing one or more fishing parameters and transmitting a fishing parameter signal representative of the one or more fishing parameters. A controller is operatively connected to the data collection system to receive the fishing parameter signal and to determine based on the fishing parameter signal a selected fishing location. The controller is further configured to transmit a navigation signal to the implement driver operative to control the implement driver to drive movement of the submersible fishing implement toward the selected fishing location.

The present invention includes a fishing rig and fish hook for live bait. The fish hook comprises a main body extending in a plane and defining a longitudinal axis, a first end, a second end, a top side and a bottom side. A plurality of hook portions extend from the body. The body further comprises an eyelet for attaching a fishing line. At least two shanks anchor the fish hook to the bait fish, one of the shanks extends from the first end at least partially along the longitudinal axis and the other shank extending from the second end at least partially along the longitudinal axis. The at least two shanks each have at least one barb extending from the shank for anchoring the fish hook to the live bait, wherein the barbs are adapted to prevent rotation of the body about the longitudinal axis relative to the live bait.

This publication relates to a system and a method for hauling fish gear, such as longlines, gillnets or demersal seine nets, into a fishing vessel (10) and collecting and transporting catch (12) to a working station, using a hatch (16) in a part of a hull exposed to the sea and arranged in a water line region (27) of the vessel (10); a vertical well (18) for receipt of at least a part of the catch through the hatch (16); a transport device for transporting the catch to the deck; and with means for bringing the catch to flow towards the transport device. The transport device (24,25) used is arranged in a shaft (19), separated from the well (18), and a closable opening or hatch (23) is arranged in a wall or bulkhead (21) between the well (18) and the shaft (19) and with a devices for opening and closing the opening or hatch (23), a bottom (22) in the shaft (19) arranged at a lower level than the lower end of the closable opening or hatch (23) and a water level in the well (18); and a device for reducing the water level in the shaft (19).

This publication relates to a system and a method for hauling fish gear, such as longlines, gillnets or demersal seine nets, into a fishing vessel (10) and collecting and transporting catch (12) to a working station, using a hatch (16) in a part of a hull exposed to the sea and arranged in a water line region (27) of the vessel (10); a vertical well (18) for receipt of at least a part of the catch through the hatch (16); a transport device for transporting the catch to the deck; and with means for bringing the catch to flow towards the transport device. The transport device (24,25) used is arranged in a shaft (19), separated from the well (18), and a closable opening or hatch (23) is arranged in a wall or bulkhead (21) between the well (18) and the shaft (19) and with a devices for opening and closing the opening or hatch (23), a bottom (22) in the shaft (19) arranged at a lower level than the lower end of the closable opening or hatch (23) and a water level in the well (18); and a device for reducing the water level in the shaft (19).