A pot for catching crabs or fish has a lockable door adapted for unloading crabs or fish from the pot and a locking mechanism operable for locking and unlocking the door. The crab or fish pot has a frame structure defining a shape of the pot; a number of mesh panels attached to the frame structure; and at least one entrance for crabs or fish to enter the pot.

A pot for catching crabs or fish has a lockable door adapted for unloading crabs or fish from the pot and a locking mechanism operable for locking and unlocking the door. The crab or fish pot has a frame structure defining a shape of the pot; a number of mesh panels attached to the frame structure; and at least one entrance for crabs or fish to enter the pot.

A container for dispensing bait in variable amounts and at variable rates. A method can include changing configurations of two attachable sleeves, where the different configurations result in different overlapping of openings in the attachable sleeves. The different overlapping of openings allows fishermen the flexibility to better control the dispensing of bait and/or chum by varying the size of the openings.

A container for dispensing bait in variable amounts and at variable rates. A method can include changing configurations of two attachable sleeves, where the different configurations result in different overlapping of openings in the attachable sleeves. The different overlapping of openings allows fishermen the flexibility to better control the dispensing of bait and/or chum by varying the size of the openings.

A fish catching device includes a modular frame member having a buoyant device secured to a first side of the frame member and the second side of the frame member is capable of being secured to a watercraft. The frame member incorporates a plurality of apertures. A plurality of one-way doors is provided, each hingedly secured to the frame and cover an individual aperture. The device is configured to rest above a surface of water permitting a fish to jump through any of the doors thereby causing the fish to slow its trajectory and direct it to enter the watercraft.

A fish catching device includes a modular frame member having a buoyant device secured to a first side of the frame member and the second side of the frame member is capable of being secured to a watercraft. The frame member incorporates a plurality of apertures. A plurality of one-way doors is provided, each hingedly secured to the frame and cover an individual aperture. The device is configured to rest above a surface of water permitting a fish to jump through any of the doors thereby causing the fish to slow its trajectory and direct it to enter the watercraft.

Disclosed herein are systems and methods for ropeless fishing. The ropeless fishing system includes a surface subsystem installed on a vessel and at least one submerged subsystem submerged in a body of water. The surface subsystem includes acoustic transceiver and acoustic transducer units, which are configured to generate and omnidirectionally transmit an acoustic interrogation signal into the body of water surrounding the vessel and to directionally receive acoustic reply signals. The submerged subsystems include a compressed gas source and an enclosed flotation bag in fluid communication and an underwater acoustic actuator-transponder unit configured to receive the acoustic interrogation signal transmitted by the surface subsystem and to transmit an acoustic reply signal into the body of water. In addition, the submerged subsystem is further configured to control the flow of gas between the compressed gas source and the enclosed floatation bag to facilitate recovery of the submerged subsystem.

Disclosed herein are systems and methods for ropeless fishing. The ropeless fishing system includes a surface subsystem installed on a vessel and at least one submerged subsystem submerged in a body of water. The surface subsystem includes acoustic transceiver and acoustic transducer units, which are configured to generate and omnidirectionally transmit an acoustic interrogation signal into the body of water surrounding the vessel and to directionally receive acoustic reply signals. The submerged subsystems include a compressed gas source and an enclosed flotation bag in fluid communication and an underwater acoustic actuator-transponder unit configured to receive the acoustic interrogation signal transmitted by the surface subsystem and to transmit an acoustic reply signal into the body of water. In addition, the submerged subsystem is further configured to control the flow of gas between the compressed gas source and the enclosed floatation bag to facilitate recovery of the submerged subsystem.

A system for retrieval of objects submerged and lost in water is disclosed. The system comprises a gas release cartridge, an activation assembly arranged for activation of the gas release cartridge in response to at least one of: lapse of time, pressure, trigger-wire, indirect water contact, or remote acoustic command or any combination thereof, components of which are all contained in an inflatable bladder. A guide line, one end thereof attached to the bladder and the other end connectable to the object, is housed inside a non-watertight casing together with the inflatable bladder.

An example line restraint system comprises a housing, a processor, a motor, a release cam, and a timer. The release cam comprises a stem portion and an arm portion. The stem portion is proximate to the housing and the arm portion may be opposite the stem portion. The stem portion may be rotatably coupled to the motor. The motor may be configured to turn the arm portion of the release cam between an open and closed state. When in the closed state, an overhang of the arm portion at least partially defines a cavity capable of retaining a release line. When in the open state, the release cam opens the cavity to enable release of the release line. The timer may receive instructions from the processor to set a particular time and to trigger the motor to turn the release cam from the closed state to the open state.