A method for eliminating or reducing the concentrations of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans comprising steps for: providing a composition containing wood vinegar liquid and amorphous carbon; and administrating the composition orally to fish and crustaceans is disclosed. Also, a composition for eliminating or reducing the concentration of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans containing wood vinegar liquid and amorphous carbon, for example, in an amount of 3 to 5 kg per 1 L of wood vinegar liquid is disclosed. By the present disclosure, a method for eliminating or reducing the concentrations of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans safely and efficiently and a composition for eliminating or reducing the concentrations of one or both geosmin and 2-methylisoborneol within the body of fish and crustaceans are provided.

A method for eliminating or reducing the concentrations of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans comprising steps for: providing a composition containing wood vinegar liquid and amorphous carbon; and administrating the composition orally to fish and crustaceans is disclosed. Also, a composition for eliminating or reducing the concentration of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans containing wood vinegar liquid and amorphous carbon, for example, in an amount of 3 to 5 kg per 1 L of wood vinegar liquid is disclosed. By the present disclosure, a method for eliminating or reducing the concentrations of one or both of geosmin and 2-methylisoborneol within the body of fish and crustaceans safely and efficiently and a composition for eliminating or reducing the concentrations of one or both geosmin and 2-methylisoborneol within the body of fish and crustaceans are provided.

The present invention relates to a method of raising fish in a recirculated aquaculture system which includes a fish holding unit in fluid communication with a water supply, the fish holding unit containing a volume of water defining a water depth, and having an osmotic concentration, an oxygen concentration, a temperature, and a pH. The method includes providing a flow of non-recirculated water to the water supply, the non-recirculated water being different from the water in the fish holding unit with respect to the osmotic concentration, the oxygen concentration, the CO2 concentration, the N2 concentration, the NH4+ concentration, the temperature and/or the pH, providing feed pellets, adding the feed pellets to the non-recirculated water and hydraulically transporting the feed pellets to the fish holding unit. The invention also relates to a RAS facility.

The present invention relates to a method of raising fish in a recirculated aquaculture system which includes a fish holding unit in fluid communication with a water supply, the fish holding unit containing a volume of water defining a water depth, and having an osmotic concentration, an oxygen concentration, a temperature, and a pH. The method includes providing a flow of non-recirculated water to the water supply, the non-recirculated water being different from the water in the fish holding unit with respect to the osmotic concentration, the oxygen concentration, the CO2 concentration, the N2 concentration, the NH4+ concentration, the temperature and/or the pH, providing feed pellets, adding the feed pellets to the non-recirculated water and hydraulically transporting the feed pellets to the fish holding unit. The invention also relates to a RAS facility.

A fish farm having a land-based fish tank (1a-e) and a water supply system (100) with a supply line (2C,D) and a discharge line (2A,B) fluidly connected to a water reservoir (3); a fluid intermediate storage (5,6, 56); a circulation conduit (9a-f) fluidly connected to the fish tank (1a-e); a valve arrangement (10a-p) fluidly connected to the supply line (2C,D), the discharge line (2A,B), the fluid intermediate storage (5,6, 56) and the circulation conduit (9a-f), the valve arrangement (10a-p) having first and second operational configurations for circulation of fluid between the fluid intermediate storage (5,6, 56) and the tank (1a-e) via the circulation conduit (9a-f) and for circulation of fluid between the fluid intermediate storage (5,6, 56) and the reservoir (3) via the supply and discharge lines (2A-D). There is also provided a method for operating a fish farm having at least one land-based fish tank.

A fish farm having a land-based fish tank (1a-e) and a water supply system (100) with a supply line (2C,D) and a discharge line (2A,B) fluidly connected to a water reservoir (3); a fluid intermediate storage (5,6, 56); a circulation conduit (9a-f) fluidly connected to the fish tank (1a-e); a valve arrangement (10a-p) fluidly connected to the supply line (2C,D), the discharge line (2A,B), the fluid intermediate storage (5,6, 56) and the circulation conduit (9a-f), the valve arrangement (10a-p) having first and second operational configurations for circulation of fluid between the fluid intermediate storage (5,6, 56) and the tank (1a-e) via the circulation conduit (9a-f) and for circulation of fluid between the fluid intermediate storage (5,6, 56) and the reservoir (3) via the supply and discharge lines (2A-D). There is also provided a method for operating a fish farm having at least one land-based fish tank.

A protector device includes a plurality of pairs of multi-pronged elements. Each pair of multi-pronged elements includes a first multi-pronged element having a first C-shaped element that has a first straight section, a first end forming a first end spike, and a second end forming a second end spike, and a first connecting element attached to and perpendicular to the first C-shaped element. Each pair of multi-pronged elements also includes a second multi-pronged element including a second C-shaped element connected to the first connecting element of the first multi-pronged element, the second C-shape element having a second straight section, a third end forming a third end spike, and a fourth end forming a fourth end spike, and a second connecting element attached to and perpendicular to the second C-shaped element.

A sensor positioning system, includes an actuation server for communicating with components of the sensor positioning system. The sensor positioning system additionally includes a first actuation system and a second actuation system, wherein each actuation system includes a pulley system for maneuvering an underwater sensor system. The sensor positioning system includes a dual point attachment bracket that connects through a first line to the first actuation system and connecting through a second line to the second actuation system. The underwater sensor system is affixed to the first pulley system, the second pulley system, and the dual attachment bracket through the first line and the second line.

A sensor positioning system, includes an actuation server for communicating with components of the sensor positioning system. The sensor positioning system additionally includes a first actuation system and a second actuation system, wherein each actuation system includes a pulley system for maneuvering an underwater sensor system. The sensor positioning system includes a dual point attachment bracket that connects through a first line to the first actuation system and connecting through a second line to the second actuation system. The underwater sensor system is affixed to the first pulley system, the second pulley system, and the dual attachment bracket through the first line and the second line.

An information processing method implemented by a computer. The information processing method includes the step of acquiring an internal parameter value regarding a biological characteristic of fish, an external parameter value regarding a surrounding environment characteristic of the fish, and a shoaling parameter value regarding a shoaling characteristic that is a behavior of one fish with respect to other fish, and the step of generating a simulation image including a behavior of each fish in a fish school based on the internal parameter value, the external parameter value, and the shoaling parameter value that are acquired in the step of acquiring.