Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for escape detection and mitigation for aquaculture. In some implementations, a method includes obtaining one or more images that depict one or more fish within an enclosure; generating, as a result of providing the one or more images to multiple detection models, a value that reflects a quantity of fish that are depicted in the images that are likely a member of each different type of fish; detecting an error condition relating to a possible opening of the enclosure based at least on the value; and in response to detecting the error condition relating to the possible opening of the enclosure, initiating one or more mitigation actions relating to the possible opening.

A system is for in-situ monitoring and recording of fish health of fish in a fish cage. The system has at least one camera housing. The camera housing is provided with a camera group having at least two cameras arranged to take synchronized pictures for digital close-range photogrammetry. The system has a central data-processing unit, the central data-processing unit being arranged to calculate a three-dimensional model of an object photographed synchronously by the at least two cameras. The data-processing unit is arranged to report the number of structures deviating from the smooth surface of the object in the three-dimensional model.

A novel technique for automated analysis of organisms like insects, shrimp and fish. The technique comprises detection of structures and/or organs in the organisms in a flow-system. Alternatively or in addition, the technique may comprise sorting of the organisms, for example sex separation of the organisms in the flow system. The technique may comprise steps of: (a) illuminating the organisms in a detection region, (b) imaging the organisms in the detection region, with an extended depth of field that spans at least one-fourth of their thickness and from at least two different directions; (c) analyzing the images for the presence of one or more features, structures and/or organs of interest.

A novel technique for automated analysis of organisms like insects, shrimp and fish. The technique comprises detection of structures and/or organs in the organisms in a flow-system. Alternatively or in addition, the technique may comprise sorting of the organisms, for example sex separation of the organisms in the flow system. The technique may comprise steps of: (a) illuminating the organisms in a detection region, (b) imaging the organisms in the detection region, with an extended depth of field that spans at least one-fourth of their thickness and from at least two different directions; (c) analyzing the images for the presence of one or more features, structures and/or organs of interest.

An organism evaluation system for analyzing organisms within a fluid flow, comprising one or more of a stimulation section comprising a means for inducing a motive response in a living organism within the fluid flow passing through the stimulation section and a shepherding section comprising a means for separating such an organism from the fluid flow, a flow normalizing section in fluid communication with the stimulation section and/or shepherding section, and a viewing section in fluid communication with the flow normalizing section, the viewing section comprising a body having formed therein a body cavity defining a viewing port, the viewing section further comprising an optical system mounted relative to the body for viewing the fluid flow within the viewing port through a cavity first opening, whereby image data relating to the fluid flow and organisms therein is acquired via the optical system for analysis.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for sorting fish in aquaculture. In some implementations, one or more images are obtained of a particular fish within a population of fish. Based on the one or more images of the fish, a data element is determined. The data element can include a first value that reflects a physical characteristic of the particular fish, and a second value that reflects a condition factor of the particular fish. Based on the data element, the fish is classified as a member of a particular subpopulation of the population of fish. An actuator of an automated fish sorter is controlled based on classifying the particular fish as a member of the particular subpopulation of the population of fish.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for sorting fish in aquaculture. In some implementations, one or more images are obtained of a particular fish within a population of fish. Based on the one or more images of the fish, a data element is determined. The data element can include a first value that reflects a physical characteristic of the particular fish, and a second value that reflects a condition factor of the particular fish. Based on the data element, the fish is classified as a member of a particular subpopulation of the population of fish. An actuator of an automated fish sorter is controlled based on classifying the particular fish as a member of the particular subpopulation of the population of fish.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for controlling a camera to observe aquaculture feeding behavior. In some implementations, a method includes moving a camera to a first position, obtaining an image captured by the camera at the first position, determining a feeding observation mode, and based on the feeding observation mode and analysis of the image, determining a second position to move the camera.

This invention discloses an ecological culture method for fish that contains marine barracuda, which places the marine barracuda fry in natural seawater, uses circulating water to dilute the natural sea water step by step, and domesticates the marine barracuda with fresh water; when the salinity of the water body is reduced to 3‰, transferring the fry to the fish culturing pond, and then the freshwater species are introduced, and the ecological culturing and ecological poly-culture model is carried out; during the culturing period, checking the growth of barracuda, adjusting the feeding and/or feeding times, and therefore barracuda reaches the required specifications within the expected time to be on the market.

This invention discloses an ecological culture method for fish that contains marine barracuda, which places the marine barracuda fry in natural seawater, uses circulating water to dilute the natural sea water step by step, and domesticates the marine barracuda with fresh water; when the salinity of the water body is reduced to 3‰, transferring the fry to the fish culturing pond, and then the freshwater species are introduced, and the ecological culturing and ecological poly-culture model is carried out; during the culturing period, checking the growth of barracuda, adjusting the feeding and/or feeding times, and therefore barracuda reaches the required specifications within the expected time to be on the market.