A container can dispense variable amounts of bait, for example, through holes in complementary sleeves. Different configurations can result in different hole sizes and different overlap in attachable sleeves. These differences can allow fishermen flexibility to better control the dispensing of bait and/or chum by varying the size of the openings.

A container can dispense variable amounts of bait, for example, through holes in complementary sleeves. Different configurations can result in different hole sizes and different overlap in attachable sleeves. These differences can allow fishermen flexibility to better control the dispensing of bait and/or chum by varying the size of the openings.

A video monitoring apparatus for assessing marine diversity includes a support frame, one or more cameras mounted on the support frame for recording images, and a bait receptacle mounted on the support frame for holding bait. The bait receptacle is adapted to release bait therefrom when the support frame comes to rest on a surface.

A multi-functional aquatic vehicle comprises a main body. The main body comprises: a propulsion system, comprising at least one propeller for changing a motion attitude of the main body; a camera system, comprising at least one camera; a communication system, comprising a signal receiving module for receiving an external signal detected by the aquatic vehicle and a signal transmitting module for transmitting a signal to an external control system; and a control system, for controlling an operating state of the propulsion system, adjusting a capturing angle of the camera system and controlling internal and external communication of the communication system. A towing hook device comprises: a driving system, a connecting mechanism and a towing hook mechanism. The driving system drives the connecting mechanism to rotate such that the towing hook mechanism turns over or rotates to release a load.

Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

A magnetic bait-release device is an apparatus that houses live bait and remotely releases the live bait with a connected fishing line of a fishing pole. The apparatus includes a tubular housing, a fixed lid, a release lid, and a latch mechanism. The tubular housing contains the live bait with the fixed lid and the release lid. The release lid releases the live bait upon the engagement of the latch mechanism with the connected fishing line of the fishing pole. The latch mechanism includes a trigger bar, a slot, a handle, an eyelet, a compression spring, a fixed magnet, and a free magnet. The fixed magnet is positioned within the tubular housing with the trigger bar. The free magnet is mounted within the release lid. The compression spring forcibly retracted the trigger bar with a pull of the connected fishing line which is connected with the eyelet.

A portable bait container with adjustable luminosity has an openable casing to access a receptacle for storing baits. Casing is provided with a handle to conveniently carry and handle container from one place to another. Container further includes a first illuminating device that illuminates surrounding and hence enable user to easily view the ground and search for fishing baits such as worms or night-crawlers. Actuating switch is provided on handle for its easy access which actuates and de-actuates first illuminating device. Intensity of first illuminating device is controlled by using dimmer adjuster that enables user to manipulate intensity and hence provides maximum opportunity for collecting fishing baits. Container is portable, easy to handle by a single user to perform various bait collection operations and has adjustable luminosity for viewing surrounding at desired light intensity and thus reduces opportunity loss during collection of fishing baits.

Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

An on-board chumming system and vessel using same include a generally vertically oriented downtube that connects a feed portion at the top with a comminution chamber at the bottom. A water inlet at the top of the downtube facilitates the bait falling into the comminution chamber to be pulverized and mixed with water to create the chum, which flows out of the comminution chamber through an outlet that passes through a side of the vessel.

An on-board chumming system and vessel using same include a generally vertically oriented downtube that connects a feed portion at the top with a comminution chamber at the bottom. A water inlet at the top of the downtube facilitates the bait falling into the comminution chamber to be pulverized and mixed with water to create the chum, which flows out of the comminution chamber through an outlet that passes through a side of the vessel.