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    FISH CHARACTERISTIC DETERMINATION SYSTEM, FISH CHARACTERISTIC DETERMINATION METHOD AND PROGRAM
    5.
    发明公开
    FISH CHARACTERISTIC DETERMINATION SYSTEM, FISH CHARACTERISTIC DETERMINATION METHOD AND PROGRAM 审中-公开

    公开(公告)号：EP4434334A1

    公开(公告)日：2024-09-25

    申请号：EP23163855.2

    申请日：2023-03-23

    申请人： Furuno Electric Company Limited

    发明人： IKEGAMI, Atsushi

    IPC分类号： A01K61/90

    CPC分类号： A01K61/90

    摘要： A fish characteristic determination system for determining a characteristic of a fish swimming in water is provided. The system includes a camera system (20), a fish length calculation unit (101a), and a condition factor calculation unit (101b). The camera system (20) is configured to acquire an image of the fish. The fish length calculation unit (101a) is configured to calculate a length of the fish by processing the image of the fish. The condition factor calculation unit (101b) is configured to calculate a condition factor of the fish from the calculated length. The condition factor is calculated from an exponential function of the length.

    PRECISE REGULATION-AND-CONTROL SYSTEM FOR PROPAGATION OF DRIFTING EGG FISHES
    7.
    发明公开
    PRECISE REGULATION-AND-CONTROL SYSTEM FOR PROPAGATION OF DRIFTING EGG FISHES 审中-公开

    公开(公告)号：EP4212016A1

    公开(公告)日：2023-07-19

    申请号：EP23151860.6

    申请日：2023-01-17

    申请人： China Three Gorges Corporation ,  HOHAI UNIVERSITY

    发明人： DAI, Huichao ,  MAO, Jingqiao ,  GONG, Yiqing ,  ZHANG, Peipei ,  WANG, Gang ,  DAI, Jie ,  JIANG, Dingguo ,  ZHAO, Hanqing ,  ZHAI, Ran

    IPC分类号： A01K61/17 ,  A01K61/90 ,  A01K79/00

    摘要： The present invention discloses a precise regulation-and-control system for propagation of drifting egg fishes, and relates to the field of ecological regulation-and-control for water conservancy areas. This system includes a habitat monitoring component, a fish perception component, an information fusion component and a regulation-and-control component; the habitat monitoring component is configured to acquire habitat factor data of target fishes; the fish perception component is configured to acquire target fish information; the information fusion component is configured to generate an environmental biological fusion data set and determine spawning grounds where the target fishes spawn and a first day-to-day water temperature change rate of each spawning ground within a preset period of time starting from a start date; and the regulation-and-control component is configured to respectively generate a first precise regulation-and-control parameter and a second precise regulation-and-control parameter of a reservoir gate according to a precise data set for migration regulation-and-control and a precise regulation-and-control parameter set for stimulative spawning regulation-and-control and generate a precise regulation-and-control scheme meeting a fish-egg hatching condition. By adopting this method, a migration process, a spawning process and a fish-egg hatching process of the target fishes can be precisely regulated and controlled.

    DEVICE FOR SORTING AQUATIC ORGANISMS
    8.
    发明公开
    DEVICE FOR SORTING AQUATIC ORGANISMS 审中-公开

    公开(公告)号：EP3959971A1

    公开(公告)日：2022-03-02

    申请号：EP19948044.3

    申请日：2019-09-30

    申请人： Homura Heavy Industries Corporation

    发明人： FURUSAWA, Yosuke

    IPC分类号： A01K61/90

    摘要： [Problem]
    To provide an apparatus for sorting aquatic organisms according to characteristics thereof.
    [Solution]
    An apparatus (1) for sorting aquatic organisms having different characteristics in accordance with the characteristics, the apparatus including a container (10) configured to contain the aquatic organisms and water, a plurality of electrodes (20) provided in the container, a controller (30) for controlling electric pulses applied to one or more electrodes of the plurality of electrodes, and a driving-out unit (40a and 40b) for driving out the aquatic organisms having been sorted, wherein the electric pulses controlled by the controller are applied to the one or more electrodes to form an electric field so as to selectively move the aquatic organisms in the container to different portions (P1 and P2) in the container according to the characteristics, and the driving-out unit drives out the aquatic organisms to an outside of the container from the portion according to the characteristics, after the aquatic organisms are moved.