PRECISE REGULATION-AND-CONTROL SYSTEM FOR PROPAGATION OF DRIFTING EGG FISHES

    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

    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.

    HABITAT CONSTRUCTION APPARATUS AND OPERATION METHOD ORIENTED TO REPRODUCTION REQUIREMENTS OF FISHES WITH ADHESIVE AND DEMERSAL EGGS

    公开(公告)号:EP4292429A1

    公开(公告)日:2023-12-20

    申请号:EP23156959.1

    申请日:2023-02-16

    摘要: The present invention relates to the field of fish habitat protection, and specifically to a habitat construction apparatus oriented to reproduction requirements of fishes with adhesive and demersal eggs and an operation method. The habitat construction apparatus includes a base (4), a top cover (3), an anchoring component (5), an elevation assembly, a double-layer adjusting plate, a propeller (42), a fish monitoring and positioning system, an intelligent control system, and a rechargeable battery (9). Movable sheets (63) of the intelligent double-layer adjusting plate provided in the present invention can swing vertically by 0° to 90°, which helps to adjust a water flow field and construct an appropriate habitat threshold in an egg collection region. The habitat construction apparatus can be used as a prototype observation and experiment platform for habitat environment sensitivity, fish school size and species quantity, fish egg production, and the like, promote natural reproduction of fish population, overcome deficiencies in artificial fish stocking, help to alleviate the contradiction between the development and utilization of hydroelectric resources and water ecological protection, and can be used as an important technical support for water ecological restoration and fish resource protection.

    SOFT SPHERICAL OBJECT CONVEYING APPARATUS AND METHOD FOR CONVEYING SOFT SPHERICAL OBJECTS

    公开(公告)号:EP3598894A1

    公开(公告)日:2020-01-29

    申请号:EP19187712.5

    申请日:2019-07-23

    IPC分类号: A01K61/17 B65G47/14

    摘要: In the case where fish eggs are conveyed by a conveying gear having a peripheral part provided with a plurality of housing recesses each housing one fish egg, in a water tank into which the fish eggs are introduced, the fish eggs are prevented from being pinched and crushed between the peripheral part of the conveying gear and a guide member when the fish eggs move to the housing recesses. A fish-egg conveying apparatus according to the present invention includes: a water tank (8) into which at least one fish egg is introduced; a conveying gear (61) that rotates in the water tank (8) and has a peripheral part provided with a plurality of housing recesses housing each one of the fish eggs; a guide member (63) disposed along part of the peripheral part of the conveying gear (61) in the water tank (8); and a removing roller (64) that rotates on an upstream side of the guide member (63) in the water tank (8) in a rotation direction of the conveying gear (61), such that a part of the removing roller (64) opposed to the peripheral part of the conveying gear (61) moves in a direction away from the guide member (63).

    METHODS FOR CONTROLLING SEX OF OVIPAROUS EMBRYOS USING LIGHT SOURCES

    公开(公告)号:EP3133916A4

    公开(公告)日:2018-01-10

    申请号:EP15783643

    申请日:2015-04-24

    摘要: The sex of embryos in eggs is influenced or controlled through the application of light having selected wavelengths in order to promote the development of embryos of a selected sex. An incubating device is provided having an interior cavity that can be sealed from an outside, and having a plurality of lighting elements in the interior cavity. Eggs are disposed in the interior cavity, and pre-determined environmental conditions are applied to the interior cavity to promote hatching of the eggs. Concurrently with the application of the environmental conditions, the eggs are irradiated according to pre-determined lighting conditions. The lighting conditions include applying light having wavelengths substantially concentrated in selected ranges, such as light wavelengths within the 440-460 nm, or other narrow range.