A DEVICE AND A METHOD FOR REDUCING THE NUMBER OF EXTERIOR PARASITES ON FISH

    公开(公告)号:US20180153142A1

    公开(公告)日:2018-06-07

    申请号:US15577327

    申请日:2016-05-27

    申请人: EYOBJORN HANSEN

    发明人: EYOBJORN HANSEN

    IPC分类号: A01K61/13 A01K63/04

    摘要: A device for reducing the number of exterior parasites on fish, comprising a hollow cylindrical filter member (3) having an inlet and an outlet, the circumference of the inlet and/or outlet being provided with a nozzle (1a, 1b), wherein the nozzle comprises a substantially annular slit along the circumference of the inlet and/or outlet for ejecting a fluid towards the interior of the cylindrical filter (3).

    Method and system for external fish parasite monitoring in aquaculture

    公开(公告)号:US12127535B2

    公开(公告)日:2024-10-29

    申请号:US16769314

    申请日:2018-12-19

    申请人: Intervet Inc.

    IPC分类号: A01K61/13

    CPC分类号: A01K61/13

    摘要: A method for external fish parasites, such as sea lice, monitoring in aquaculture, comprising the steps of: —submerging a camera (52) in a sea pen (40) comprising fish (72, 74); —capturing images of the fish (72, 74) with the camera (52); and —identifying external fish parasites such as sea lice on the fish (72, 74) by analyzing the captured images, characterized by the steps of: —distinguishing between at least two different classes of external fish parasites such as sea lice which differ in the difficulty of recognizing the external fish parasites such as sea lice; —calculating quality metrics for each captured image, the quality metrics permitting to identify the classes of external fish parasites such as sea lice for which the quality of the image is sufficient for sea lice detection; and —establishing separate detection rates for each class of sea lice, each detection rate being based only on images the quality of which, as described by the quality metrics, was sufficient for detecting external fish parasites such as sea lice of that class.

    Immune-enhanced aquaculture
    55.
    发明授权

    公开(公告)号:US11997991B2

    公开(公告)日:2024-06-04

    申请号:US17176513

    申请日:2021-02-16

    摘要: Aquaculture systems and methods are provided, as well as immunogenic compositions and methods of immunologically protecting bivalves against specified pathogens. Methods include inactivating specified pathogens using UV (ultraviolet) radiation, exposing invertebrates grown or to be grown in aquaculture to the specified UV-inactivated pathogens to enhance an immune reaction of the exposed invertebrates toward the specified pathogens, and growing the exposed invertebrates in aquaculture. For example, the methods were demonstrated to increase the immune response of oysters to ostreid herpesvirus 1 (OsHV-1) following their prior exposure to UV-inactivated OsHV-1.

    Mount for a calibration target for ultrasonic removal of ectoparasites from fish

    公开(公告)号:US11864535B2

    公开(公告)日:2024-01-09

    申请号:US17557891

    申请日:2021-12-21

    申请人: X Development LLC

    IPC分类号: A01K61/13 G01S5/20 A01K61/10

    CPC分类号: A01K61/13 A01K61/10 G01S5/20

    摘要: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for obtaining initial parameters for ultrasonic transducers around a calibration target. The calibration target can include a fish-shaped structure, sensors placed at different locations of the fish-shaped structure, a processor that receives sensor values from the sensors, and a transmitter that outputs sensor data from the calibration target based on the sensor values. The calibration target can be fixed at a particular position relative to the ultrasonic transducers by a filament coupled to both the calibration target and a support structure. Sensor data can be obtained from the calibration target at the particular position relative to the ultrasonic transducers, and relative locations of the sensors can be determined. Parameters for the ultrasonic transducers around the calibration target can be adjusted based on the sensor data and the respective locations of the sensors.

    METHOD FOR AUTOMATIC SEA LICE MONITORING IN SALMON AQUACULTURE

    公开(公告)号:US20230363359A1

    公开(公告)日:2023-11-16

    申请号:US18303243

    申请日:2023-04-19

    申请人: Intervet Inc.

    IPC分类号: A01K61/60 A01K61/13 A01K61/90

    摘要: The present invention pertains to a method for automatic sea lice monitoring in fish aquaculture, the method comprising submerging a camera (4) in a sea pen (300) comprising fish, using the camera to make an image of at least one of said fish, analysing the image to differentiate between individual sea lice present on the fish and the fish itself and assessing the number of sea lice present on the fish, wherein the camera is attached to a device (1, 10, 100) for guiding the salmon along an imaging track (5), the camera being directed to the track.