There is provided an illumination system (100) for cultivation of aquatic animals. The illumination system (100) comprises at least one light source (110) emitting light, at least one light driver (120) arranged to drive the at least one light source (110), at least one light sensor (130) providing illuminance data for at least one point of interest (50) in said illumination system (100), and a controller (140). The controller (140) is adapted to provide control signals to the at least one light driver (120) driving the at least one light source (110) to emit light of a desired illuminance at the at least one point of interest (50). An ambient light sensor may be applied to determine control signals also in accordance with ambient light data.

There is provided an illumination system (100) for cultivation of aquatic animals. The illumination system (100) comprises at least one light source (110) emitting light, at least one light driver (120) arranged to drive the at least one light source (110), at least one light sensor (130) providing illuminance data for at least one point of interest (50) in said illumination system (100), and a controller (140). The controller (140) is adapted to provide control signals to the at least one light driver (120) driving the at least one light source (110) to emit light of a desired illuminance at the at least one point of interest (50). An ambient light sensor may be applied to determine control signals also in accordance with ambient light data.

Disclosed is an adaptive feeding device for swimming fish based on photo-acoustic coupling technology. The device comprises a recirculating aquaculture pond, a recirculating water treatment system, a high-definition waterproof camera, a feeding machine having a feeding port, and a LED supplement light, a PLC, a digital signal processor, a display, and a hydrophone. The device mainly uses the combination of machine vision technology and acoustic technology to adaptively and accurately analyze and evaluate the fish's real-time feeding desire during the feeding process, so as to formulate feeding strategies. The device of the present invention has simple structure, precise and simple method. The self-adaptive feeding device and method of the present invention are suitable for recirculating aquaculture mode and can effectively solve the problem of feed feeding in the existing recirculating aquaculture system.

Disclosed is an adaptive feeding device for swimming fish based on photo-acoustic coupling technology. The device comprises a recirculating aquaculture pond, a recirculating water treatment system, a high-definition waterproof camera, a feeding machine having a feeding port, and a LED supplement light, a PLC, a digital signal processor, a display, and a hydrophone. The device mainly uses the combination of machine vision technology and acoustic technology to adaptively and accurately analyze and evaluate the fish's real-time feeding desire during the feeding process, so as to formulate feeding strategies. The device of the present invention has simple structure, precise and simple method. The self-adaptive feeding device and method of the present invention are suitable for recirculating aquaculture mode and can effectively solve the problem of feed feeding in the existing recirculating aquaculture system.

The disclosure relates to a feeder (1) for spreading feed, the feeder (1) comprising a housing (10) having an upper feed compartment (11) and a lower feed compartment (12), and a partition wall (16) between the upper feed compartment (11) and the lower feed compartment (12), the partition wall (16) comprising an upper plate (21), a lower plate (22) and a disc (23) with through-going openings (21a-c, 22a-c, 23a-d), the feeder further comprising a spreader motor (50), a rotatable spreader plate (54), a spreader shaft (52) between and connected to the spreader motor (50) and to the rotatable spreader plate (54), the spreader shaft (52) extending at least partly through the lower feed compartment (12) and a lower agitator (60) being positioned inside the lower feed compartment (12) and being connected to and extending from the spreader shaft (52) such that when the spreader shaft (52) is rotated the lower agitator (60) will sweep around the second axis (A2) inside the lower feed compartment (12).

The disclosure relates to a feeder (1) for spreading feed, the feeder (1) comprising a housing (10) having an upper feed compartment (11) and a lower feed compartment (12), and a partition wall (16) between the upper feed compartment (11) and the lower feed compartment (12), the partition wall (16) comprising an upper plate (21), a lower plate (22) and a disc (23) with through-going openings (21a-c, 22a-c, 23a-d), the feeder further comprising a spreader motor (50), a rotatable spreader plate (54), a spreader shaft (52) between and connected to the spreader motor (50) and to the rotatable spreader plate (54), the spreader shaft (52) extending at least partly through the lower feed compartment (12) and a lower agitator (60) being positioned inside the lower feed compartment (12) and being connected to and extending from the spreader shaft (52) such that when the spreader shaft (52) is rotated the lower agitator (60) will sweep around the second axis (A2) inside the lower feed compartment (12).

Generating consensus biomass estimates include providing a first biomass parameter data set associated with a first biomass attribute parameter to a first biomass estimation model and providing a second biomass parameter data set associated with a second biomass attribute parameter to a second biomass estimation model different from the first biomass estimation model. The first biomass estimation model is adaptively weighted with a first weighting factor relative to a second weighting factor for the second biomass estimation model. An aggregated biomass estimate is determined based on a combination of the first biomass estimation model using the first weight factor and the second biomass estimation model using the second weight factor.

A fish monitoring system deployed in a particular area to obtain fish images is described. Neural networks and machine-learning techniques may be implemented to periodically train fish monitoring systems and generate monitoring modes to capture high quality images of fish based on the conditions in the determined area. The camera systems may be configured according to the settings, e.g., positions, viewing angles, specified by the monitoring modes when conditions matching the monitoring modes are detected. Each monitoring mode may be associated with one or more fish activities, such as sleeping, eating, swimming alone, and one or more parameters, such as time, location, and fish type.

Apparatus is provided for estimating a flow rate of a fluent solid material in a generally horizontal pipe having a movable transportation element such as an auger in the pipe for transporting the material along the pipe including distance sensors mounted in the pipe in an upper part of the pipe and arranged to detect the distance of the material in a lower part of the pipe from the sensor. Another sensor is provided to detect the rate of movement of the transportation element for example by detecting the metal of the auger flight. The output from the sensors is fed to a control system for analyzing the output signals from the sensors over time to provide the estimate of flow rate. The sensors can be mounted in a pressurized enclosure to prevent escape of dust though openings for the sensors.

A foldable aquaponics, and greenhouse container system and method, includes an insulated shipping container having foldable insulated roof panel disposed thereover; a foldable glazing on a sun facing side at an angle to maximize winter sunlight attached to the roof panel; a foldable floor panel attached to the container with a foldable vent panel attached thereto connecting to the glazing; foldable side panels attached to sides of the container, glazing and roof panel; a plant growing under the glazing; a mushroom growing area within the container having an integrated water wall thermal mass and disposed between the plant and mushroom growing areas; a fish tank within the container; and a natural air ventilation system within the container under the roof panel to provide CO2 and O2 gas exchange between the mushroom growing area and the plant growing area.