A variable buoyancy platform including a support frame with a platform floor mounted to a top thereof. A plurality of bottom variable buoyancy tanks are disposed below the support frame and mounted thereto. Each bottom variable buoyancy tank includes an opening disposed in a bottom portion thereof and an air conduit port disposed in a top portion thereof. At least two side variable buoyancy tanks are disposed at opposite sides of the support frame and pivotally movable mounted thereto. Each side variable buoyancy tank includes an opening disposed in a bottom portion thereof and an air conduit port disposed in a top portion thereof. A bottom air conduit system is connected to the air conduit port of each bottom variable buoyancy tank. The bottom air conduit system is adapted for controllably providing air to each bottom variable buoyancy tank and for controllably releasing air from each bottom variable buoyancy tank. A side air conduit system is connected to the air conduit port of each side variable buoyancy tank. The side air conduit system is adapted for controllably providing air to each side variable buoyancy tank and for controllably releasing air from each side variable buoyancy tank.

A variable buoyancy platform including a support frame with a platform floor mounted to a top thereof. A plurality of bottom variable buoyancy tanks are disposed below the support frame and mounted thereto. Each bottom variable buoyancy tank includes an opening disposed in a bottom portion thereof and an air conduit port disposed in a top portion thereof. At least two side variable buoyancy tanks are disposed at opposite sides of the support frame and pivotally movable mounted thereto. Each side variable buoyancy tank includes an opening disposed in a bottom portion thereof and an air conduit port disposed in a top portion thereof. A bottom air conduit system is connected to the air conduit port of each bottom variable buoyancy tank. The bottom air conduit system is adapted for controllably providing air to each bottom variable buoyancy tank and for controllably releasing air from each bottom variable buoyancy tank. A side air conduit system is connected to the air conduit port of each side variable buoyancy tank. The side air conduit system is adapted for controllably providing air to each side variable buoyancy tank and for controllably releasing air from each side variable buoyancy tank.

A depth wire-controlled aquaculture device, having a net cage, float balls, a depth sensor and at least one wire control module, is illustrated. The net cage has a frame and a net body. The float balls are connected to the net cage. The depth sensor is installed on the net cage and detects an underwater depth of the net cage to generate a depth signal. The wire control module comprises a controller, a reel, a driver and a connection wire. The connection wire is connected to the net cage and wound around the reel, the controller is signally connected the depth sensor and the driver, the depth signal is transmitted to the controller, the controller controls the driver according to the depth signal, and the driver drives the reel to rotate to draw or release the connection wire, so as to change the underwater depth of the net cage.

A depth wire-controlled aquaculture device, having a net cage, float balls, a depth sensor and at least one wire control module, is illustrated. The net cage has a frame and a net body. The float balls are connected to the net cage. The depth sensor is installed on the net cage and detects an underwater depth of the net cage to generate a depth signal. The wire control module comprises a controller, a reel, a driver and a connection wire. The connection wire is connected to the net cage and wound around the reel, the controller is signally connected the depth sensor and the driver, the depth signal is transmitted to the controller, the controller controls the driver according to the depth signal, and the driver drives the reel to rotate to draw or release the connection wire, so as to change the underwater depth of the net cage.

A submersible aquaculture pen includes a mesh enclosure supported by an annular floatation collar in a body of water. A weight ring is suspended from the floatation collar with a first plurality of cables. A variable buoyancy assembly is operable to selectively transition the aquaculture pen between a floating configuration and a submerging configuration. The variable buoyancy assembly includes a plurality of connected bell jars that are closed at a top end and are open at a bottom end. An air supply system is configured to selectively inject a controlled amount of air into each of the connected bell jars.

A submersible aquaculture pen includes a mesh enclosure supported by an annular floatation collar in a body of water. A weight ring is suspended from the floatation collar with a first plurality of cables. A variable buoyancy assembly is operable to selectively transition the aquaculture pen between a floating configuration and a submerging configuration. The variable buoyancy assembly includes a plurality of connected bell jars that are closed at a top end and are open at a bottom end. An air supply system is configured to selectively inject a controlled amount of air into each of the connected bell jars.

A floatable fish tank comprising: a hull having a lower part with side and bottom walls, the lower part forming an enclosure for fish; a deck arranged at an upper part of the hull; a central column fixed within the hull, wherein the central column is closed at its lower end section and extends from the bottom wall to the deck.

A floatable fish tank comprising: a hull having a lower part with side and bottom walls, the lower part forming an enclosure for fish; a deck arranged at an upper part of the hull; a central column fixed within the hull, wherein the central column is closed at its lower end section and extends from the bottom wall to the deck.

Methods, systems, and computer-readable media that implement a mobile filtration system that provides sustainable, on-demand water filtration while supporting the growth and maintenance of organisms. The method includes determining an environmental parameter associated with a volume of water, determining, based on the determined environmental parameter, a control parameter for an autonomous submersible structure that includes a platform on which marine life grows, and generating, based on determining the control parameter, an instruction for the autonomous submersible structure.

Methods, systems, and computer-readable media that implement a mobile filtration system that provides sustainable, on-demand water filtration while supporting the growth and maintenance of organisms. The method includes determining an environmental parameter associated with a volume of water, determining, based on the determined environmental parameter, a control parameter for an autonomous submersible structure that includes a platform on which marine life grows, and generating, based on determining the control parameter, an instruction for the autonomous submersible structure.