A module type aquaculture tank having a stepwise recirculating aquaculture system according to the present disclosure may include a main fish breeding water tank including first, second, third, and fourth edges and having a square plane, an intermediate fish breeding water tank disposed adjacent to the first edge of the main fish breeding water tank, a plurality of recirculating filtration tanks arranged adjacent to each other along the third edge opposite to the first edge of the main fish breeding water tank, and an air lifting Venturi apparatus including a plurality of Venturi pipes arranged along the edges of an inside of the main fish breeding water tank and an air guide obliquely extending from an upper end of each of the plurality of Venturi pipes upward in an air spray direction.

A tank for farming of marine organisms is described, where the tank includes a main chamber to hold the marine organisms and where the tank has further chambers to treat the water before it is circulated back to the main chamber.

A system for indoor shrimp aquaculture is described that comprises a plurality of stacked raceways, each raceway being a long, flat rectangular tank comprising at least two sections arranged in series and scaled to accommodate shrimp of increasing size. The sections are separated by a moveable section divider whereby shrimp may be transferred between sections once they reach a predetermined size by opening the moveable section divider and allowing the shrimp and water to flow through into the next section. Each raceway includes a waste collection assembly situated at the downstream end of each section for collecting waste for removal. Methods of using the system to grow shrimp are also provided. The raceways are further adapted to facilitate operation of the production module at large scales, in this way; the system is scaleable to achieve high-throughput production of shrimp.

A controllable semi-open mariculture cabin system is provided, including a mariculture cabin, a water inlet mechanism, a filtering mechanism, and a fish outlet pipe. The water inlet mechanism includes a water inlet pipe and a plurality of high-pressure water inlet pipes. The water inlet pipe is located on one side of an upper part of the mariculture cabin. The plurality of high-pressure water inlet pipes are distributed in a circumferential direction of a top of the mariculture cabin. Tail ends of the high-pressure water inlet pipes are connected to jet pipes extending into the mariculture cabin. The filtering mechanism is arranged at the bottom of the mariculture cabin. An outlet end of the filtering mechanism is located in sea water outside. The fish outlet pipe is provided on a cabin wall of the mariculture cabin. A gate valve capable of opening and closing is mounted on the fish outlet pipe.

A water bonding fixture is provided herein which includes a shaft and a plurality of electrically conductive plates disposed at one end of the shaft and spaced apart from each other so as to provide a gap between adjacent plates. Each electrically conductive plate defines two planar surfaces each of which are substantially exposed and each electrically conductive plate is electrically connected to each other electrically conductive plate to provide a surface area of conductive surface approximately equal to the exposed surface area of all of the electrically conductive plates. The water bonding fixture is preferably used in conjunction with swimming pool equipment such as pool pumps, skimmers and filters.

A method for decorating a housing using a decorative ornament assembly includes a base and plurality of decorative elements irremovably disposed therein. The width and depth of the base is less than or equal to the width and depth of inner surface dimension of the housing such that the bottom inner surface area of the housing is entirely covered by one or more bases. A decorative elements on the decorative ornament assembly is configured for use in easy removal of the assembly from the housing.

A shipping container that includes a greenhouse mounted above an aqueous tank or tanks. Aquaponics fruits and vegetables grow in greenhouse in vertical and horizontal grow systems, while fish are grown in the tanks. Water flows between all plants and fish with no soil. The system is run by a computer automation system which operates on data obtained by various sensors and control components that include automated control valves, fish feeders, temperature and water flow measurements. The container can be operated from an established grid or can run off-grid with solar or other renewable energy sources. Part of the water needed for the system can be collected from rainfall. All necessary components except for the water, fish and plant seedlings are delivered in the shipping container.

An energy efficient aquaculture system combining mixed-cell and raceway configurations. The system comprises a raceway tank, a raceway channel, a first water purification subsystem, and a second water purification subsystem. The system may include one or more of a hatching subsystem, a nursery subsystem, a feeding subsystem, a finishing subsystem, and a fish pumping system for transfer of fish between raceway tanks. A method of growing fish for commercial production using the aquaculture system is also provided.

Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.

Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.