A fish lighting system has an input interface which receives instructions corresponding to a desired fish behavioral and/or physiological response. This is converted into a lighting control signal for driving a lighting arrangement, with the intensity and color of the output from the lighting arrangement selected to obtain the desired fish behavioral and/or physiological response.

A fish lighting system has an input interface which receives instructions corresponding to a desired fish behavioral and/or physiological response. This is converted into a lighting control signal for driving a lighting arrangement, with the intensity and color of the output from the lighting arrangement selected to obtain the desired fish behavioral and/or physiological response.

A process for harvesting fish eggs is provided, in particular fish eggs from Salmon. The process comprises rearing sexually immature salmon in an aquatic environment in stages during which at least the light exposure and time span is adjusted. The rearing includes at least a winter-summer period that comprises a winter life-cycle stage, within which the broodstock is exposed to light that simulates winter light exposure, and a subsequent summer life-cycle stage, within which the broodstock is exposed to light that simulates summer light exposure, wherein the total Accumulated Thermal Unit (ATU) during the winter-summer period is no more than 5000. The inventions also provides salmon eggs that are produced by the disclosed process.

A process for harvesting fish eggs is provided, in particular fish eggs from Salmon. The process comprises rearing sexually immature salmon in an aquatic environment in stages during which at least the light exposure and time span is adjusted. The rearing includes at least a winter-summer period that comprises a winter life-cycle stage, within which the broodstock is exposed to light that simulates winter light exposure, and a subsequent summer life-cycle stage, within which the broodstock is exposed to light that simulates summer light exposure, wherein the total Accumulated Thermal Unit (ATU) during the winter-summer period is no more than 5000. The inventions also provides salmon eggs that are produced by the disclosed process.

This disclosure relates to methods and systems for repelling one or more fish eating predators (4) from a fish-containing area (6) within a sea, fjord, river or lake, wherein a moving image of a predator (18) of the one or more fish eating predators (4) is provided at and/or near a boundary of the fish-containing area (6).

This disclosure relates to methods and systems for repelling one or more fish eating predators (4) from a fish-containing area (6) within a sea, fjord, river or lake, wherein a moving image of a predator (18) of the one or more fish eating predators (4) is provided at and/or near a boundary of the fish-containing area (6).

The invention relates to a sex determination (SD) marker of a male Mugilidae fish comprising a nucleic acid sequence corresponding to a sequence of a Follicle-stimulating hormone receptor (FSHR) gene of said fish and including at least one male (Y) specific nucleotide difference when compared to a corresponding sequence on a FSHR gene of a female Mugilidae fish. The invention further concerns uses of this sex determination marker in methods of early sex determination in a Mugilidae fish, methods of sex-reversal of a Mugilidae fish prior to appearance of a sex phenotype, and methods for producing a mono-sex population of Mugilidae fishes.

The invention relates to a sex determination (SD) marker of a male Mugilidae fish comprising a nucleic acid sequence corresponding to a sequence of a Follicle-stimulating hormone receptor (FSHR) gene of said fish and including at least one male (Y) specific nucleotide difference when compared to a corresponding sequence on a FSHR gene of a female Mugilidae fish. The invention further concerns uses of this sex determination marker in methods of early sex determination in a Mugilidae fish, methods of sex-reversal of a Mugilidae fish prior to appearance of a sex phenotype, and methods for producing a mono-sex population of Mugilidae fishes.

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.

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.