A behavior modification device includes processing circuitry configured to: acquire sensing information of a sensor to observe a monitoring area; identify behavior of an organism to be threatened present in the monitoring area on a basis of the acquired sensing information; determine a parameter of a stimulus to be given to the organism on a basis of the identified behavior; and generate stimulus data for generating the stimulus on a basis of the determined parameter and output the stimulus data to an actuator for generating a stimulus.

A behavior modification device includes processing circuitry configured to: acquire sensing information of a sensor to observe a monitoring area; identify behavior of an organism to be threatened present in the monitoring area on a basis of the acquired sensing information; determine a parameter of a stimulus to be given to the organism on a basis of the identified behavior; and generate stimulus data for generating the stimulus on a basis of the determined parameter and output the stimulus data to an actuator for generating a stimulus.

A mobile electric field monitor with a floatable housing, an electric field probe, and a computer processor to measure the electric field generated by an electrofisher while the electrofisher is being used in a body of water, this mobile electric field monitor is coupled to computing system to generate a three dimensional map of electric field.

A mobile electric field monitor with a floatable housing, an electric field probe, and a computer processor to measure the electric field generated by an electrofisher while the electrofisher is being used in a body of water, this mobile electric field monitor is coupled to computing system to generate a three dimensional map of electric field.

A geofenced autonomous aquatic drone for repelling sharks from a shoreline. The drone employs a buoyant housing resembling a portion of a predator such as an orca whale. A battery positioned within the drone is recharged through a floating inductive charging station. A transmitter unit coupled to at least one under water transducer introduces certain sounds, such as reproduction of orca whale or dolphin calling sounds. A propulsion system controlled a microprocessor receives location information via DGPS for providing a geofence around an area to be patrolled. The drone travels within the geofence area, monitored by the DGPS receiver, while said transducer produces certain sounds and or a solution of shark repellant is dispensed.

A geofenced autonomous aquatic drone for repelling sharks from a shoreline. The drone employs a buoyant housing resembling a portion of a predator such as an orca whale. A battery positioned within the drone is recharged through a floating inductive charging station. A transmitter unit coupled to at least one under water transducer introduces certain sounds, such as reproduction of orca whale or dolphin calling sounds. A propulsion system controlled a microprocessor receives location information via DGPS for providing a geofence around an area to be patrolled. The drone travels within the geofence area, monitored by the DGPS receiver, while said transducer produces certain sounds and or a solution of shark repellant is dispensed.

A dive computer includes a pressure sensor, a screen, and a processor unit configured to control the screen and receive pressure measurements from the pressure sensor. The dive computer further includes a call member that performs at least one of the processes of emitting sound waves, emitting light, or generating vibration to call fish when operated, and the processor unit is configured to operate the call member when the processor unit detects that a predetermined trigger condition is met.

Described is a chondrichthyan repelling system comprising at least one fin comprising at least one electrically conductive electrode for connection to an electrical signal generator. In use, the electrical signal generator generates electrical signals to the at least one electrode to thereby radiate an electrical field which repels chondrichthyans. Also disclosed are various fin designs incorporating one or more electrodes, and a watercraft having one or more fins as described. Various means of connecting the electrodes to the electrical signal generator are also described.

Described is a chondrichthyan repelling system comprising at least one fin comprising at least one electrically conductive electrode for connection to an electrical signal generator. In use, the electrical signal generator generates electrical signals to the at least one electrode to thereby radiate an electrical field which repels chondrichthyans. Also disclosed are various fin designs incorporating one or more electrodes, and a watercraft having one or more fins as described. Various means of connecting the electrodes to the electrical signal generator are also described.

A method, and device for removing sea lice from salmon with use of a salmon herding passage tube, with ultrasound transducers on the periphery thereof, in a number sufficient to provide ultrasound treatment of the salmon being herded therethrough at a normal herding rate and at a sufficiently high enough frequency to kill the sea lice. Salmon are herded therethrough, with the application of ultrasound from the ultrasonic. The method and device also include removal of the lice from a salmon cage or enclosure with feeding fish into an enclosure having ultrasound transducers situated on the inner periphery thereof and providing an attraction such as a white light which attracts noxious parasitic aquatic organisms and applying ultrasound from the electronic transducers within the enclosure.