An aquatic electrical barrier that has the electrodes configured in a matrix array configuration, where each electrode element of the matrix array is mounted either directly on the bottom of a water channel or on extendable rods; the matrix array is controlled so that aquatic species may be physically moved by the aquatic species physiological response to a time-varying and spatially-varying electrical field.

An aquatic electrical barrier that has the electrodes configured in a matrix array configuration, where each electrode element of the matrix array is mounted either directly on the bottom of a water channel or on extendable rods; the matrix array is controlled so that aquatic species may be physically moved by the aquatic species physiological response to a time-varying and spatially-varying electrical field.

A device for handling and affecting a physiological state of an aquatic species with a pair of gloves, a multiplicity of electrodes, and a pulsator attached to the electrodes, so that when the pulsator is activated the current, alters the physiological state of the aquatic species.

A device for handling and affecting a physiological state of an aquatic species with a pair of gloves, a multiplicity of electrodes, and a pulsator attached to the electrodes, so that when the pulsator is activated the current, alters the physiological state of the aquatic species.

This document presents a multiple alert and deterrent device that may be used in underwater environments to present visual and audio signals to alert other divers, and simultaneously generate a voltage that serves as a deterrent to sharks. The activation of all alert and deterrent components occurs simultaneously when a user activates the device. Device activation may occur as the result of a user selection, or may be configured to occur automatically when a user removes the device from a connection to the user's clothing or any equipment associated with the user to which the device is attached.

This document presents a multiple alert and deterrent device that may be used in underwater environments to present visual and audio signals to alert other divers, and simultaneously generate a voltage that serves as a deterrent to sharks. The activation of all alert and deterrent components occurs simultaneously when a user activates the device. Device activation may occur as the result of a user selection, or may be configured to occur automatically when a user removes the device from a connection to the user's clothing or any equipment associated with the user to which the device is attached.

There is provided a system and method for managing fish migration in a body of water in the vicinity of an artificial or natural barrier. The system including a source of saturated water, where the saturated water is water having a dissolved gas level that is higher than that in the body of water. The system also includes outlets in fluid communication with the source of saturated water, each outlet being positioned at a predetermined position in the body of water to eject the saturated water into the predetermined position. The system further includes a pump in fluid communication with the source of saturated water and the outlets for moving the saturated water from the source to the one or more outlets, wherein flow of the saturated water into the body of water raises the dissolved gas level at the predetermined positions, thereby drawing the fish towards the predetermined positions.

An acoustic shark repellent device includes a housing, a mounting structure to connect the housing to a support structure to be placed underwater in a body of water, a microprocessor positioned in the housing and designed to store recordings or simulations of sounds repellent to sharks, a power unit includes a battery and a power switch positioned in the housing and designed to selectively supply power to the microprocessor, and a speaker assembly positioned in the housing and operatively connected to the microprocessor to emit the sounds repellent to sharks. The sounds may be orca sounds or other repellent sounds.

An acoustic shark repellent device includes a housing, a mounting structure to connect the housing to a support structure to be placed underwater in a body of water, a microprocessor positioned in the housing and designed to store recordings or simulations of sounds repellent to sharks, a power unit includes a battery and a power switch positioned in the housing and designed to selectively supply power to the microprocessor, and a speaker assembly positioned in the housing and operatively connected to the microprocessor to emit the sounds repellent to sharks. The sounds may be orca sounds or other repellent sounds.