A device for cultivating marine species is described. The device includes a structure, a buoyancy device coupled to the structure, a panel coupled to the structure, and an assembly coupled to the structure. The panel is configured to capture solar energy. The assembly includes a support frame, a first sprocket coupled to the support frame, a first motor coupled first sprocket, a first chain coupled to the first sprocket, and a container coupled to the chain. The container is configured to store marine species. The container is configured to be moved by the first motor. The device may include a cleaning device. The device may include an aerating device. The device may include a computing device and an energy storage device. The energy storage device may be coupled to the computing device and the panel.

A container for holding aquatic live bait. The container includes a base having an interior for holding water with the aquatic live bait contained therein. The interior has an opening to permit the aquatic live bait to be inserted into and removed from the interior. The base includes an air diffuser arranged to deliver air to the interior to aerate water in the interior and a first air connection fitting fluidly coupled to the air diffuser. A pump unit is removably connectable to the base. The pump unit includes an air pump for supplying air, a battery for powering the air pump, and a second air connection fitting fluidly coupled to the air pump. The second air connection fitting couples to the first air connection fitting when the pump unit is connected to the base to fluidly couple the air pump to the air diffuser.

A system for a live well fill pump fulfills the dual goals of keeping the intermittently operating fill pump primed and dissolving gasses in water sourced by the fill pump. A check valve in a water intake assembly cooperates with a check valve in a pump output assembly to keep the fill pump primed in between intermittent pumping operations. Water flowing out of the fill pump through the second check valve undergoes a pressure differential and turbulence. A gas delivery system directs the turbulent water through the output conduit or chamber to dissolve the gas in the water. The gas-saturated water is released through the water outlet into the container.

Techniques and systems for robotic aquaculture are described. In one embodiment, for example, a mariculture system may include an aquatic animal containment system operative to hold a population of aquatic animals, the aquatic animal containment system comprising an enclosed hull having a receptacle configured to receive a mechanical core, the mechanical core configured to store at least one sub-system to implement at least one function of mariculture system, and a position management system operative to maintain the enclosed hull at a depth below a surface of a body of water. Other embodiments are described.

The present invention is a new process for preserving the water of an aquatic body as a supplying source for different human activities such as recreation and amusement, food and ornamentation, by the development of a aquatic space formed by a Open water Lake, a Spa Lake, and a Water Depuration Lake that preserves the water mass by biotransformation and mineralization that allow reducing the concentration of carbon, nitrogen and phosphorous, generating clean and transparent water without the use of large amounts of chemicals and complex filtrate systems.

The invention relates to a diffusor for adding of gases into water, said diffusor comprising a perforated tube (1) and at least one supply tube (2), said the at least one supply tube (2) is at one end coupled to a source for supplying gas and at the other end in fluid communication with the perforated tube (1), the gas is supplied to the perforated tube (1) through at least one inner supply tube (4; 5; 15) extending from the supply tube (2) to the perforated tube (1). The invention is distinctive in that at the least one inner supply tube (4; 5; 15) is a non-perforating tube and has at least one outlet (4a, 5a, 15a) situated at a free end of the at least one inner supply tube (4, 5, 15), said gas is adapted to be distributed into the perforated tube (1) through the at least one outlet (4a, 5a, 15a).

An aquaculture system (1) for farming aquatic organisms includes an apparatus (2) for supplying oxygenated water into an enclosure (20) in which aquatic organisms are to be fanned. The apparatus (2) includes a water inlet (4) and an oxygen inlet (6) to create a water and oxygen mixture. The apparatus (2) also includes a venturi (17) arranged to dissolve the oxygen into the water passing through the venturi and such that the oxygen and water mixture passing through the venturi (17) is exposed to a substantially null magnetic field. The apparatus is also arranged such that the water and oxygen mixture that is supplied to the venturi (17) contains substantially no colloidal minerals. The apparatus also includes an outlet (18) for the oxygenated water in fluid communication with, and downstream of, the venturi (17) and in fluid communication with the inlet of the enclosure (20).

A container arrangement is for fish farming and includes a body with a bottom section and a wall section that define a volume adapted to receive water for the fish farming. A water treatment arrangement is for treatment of the water in the container arrangement. The water treatment arrangement has a device for removal of CO2 from the water of the container arrangement including a separation chamber for CO2 and means for separation of CO2 arranged at the chamber. The water treatment arrangement is arranged in the body of the container arrangement.

An oxygen generation device having a compressed air supply device, air cooling coil, a fan, pneumatic valve system, a housing, at least one media insert, an on-off switch, a printed circuit board, and a touch screen. The pneumatic valve system includes an air inlet port, a first air outlet port connected to the inlet of the first media insert, a second air outlet port connected to the inlet of the second media insert. The air inlet port receives compressed air from the compressed air supply device and alternatingly provides the compressed air to one of the first media insert and the second media insert. The lower housing includes check valve ball moveable between the first position and the second position and alternatingly controlling a flow of compressed air through the first media insert and the second media insert.

Provided is a multi-tube nozzle for use in eradicating harmful aquatic organisms, which physically kills harmful aquatic organisms while feeding water and thus allows intake water to be fed directly into a culture tank or a ballast tank without the need for a pretreatment tank, chemicals, neutralizers, etc. A multi-tube nozzle (A) for use in eradicating harmful aquatic organisms includes at least three nozzle tubes (1) that are provided adjacent to each other. The nozzle tubes (1) each includes: an inlet-side opening section (2) having an inner diameter that decreases from an inlet opening toward a throat section (3) located in the middle of the tube; an outlet-side opening section (4) having an inner diameter that increases from the throat section (3) toward an outlet opening; and the throat section (3) having a smallest inner diameter. The adjacent nozzle tubes (1) are spaced apart by a distance such that the adjacent inlet-side opening sections (2) overlap each other. A wall (5) of an overlapping portion (6) of the inlet-side opening sections (2) is cut in a U shape. An uncut portion (5a) between the adjacent U-shaped cut portions (5b) forms a sword-like pointed tip.