A rotating micro-flow adjustable light artificial cultivation system and method for coral larvae

Abstract

The application provides a coral larvae rotary micro-water-flow adjustable light artificial breeding system and method, relates to the technical field of coral sexual reproduction and artificial cultivation, and comprises a supporting rotating assembly, an aeration assembly and a series connection component. The supporting rotating assembly comprises a rotating table, provides support and rotation for the breeding system, the aeration assembly comprises an aeration pipe network, the aeration pipe network is connected with an external gas supply system, the aeration pipe network is connected with the rotating table through a connecting assembly, and the series connection component is communicated with the aeration pipe network through a multi-way valve. The application can improve the early survival rate of coral larvae and the artificial cultivation efficiency of sexual reproduction coral seedlings.

Description

Technical Field

[0001] This invention relates to the field of coral sexual reproduction and artificial cultivation technology, and in particular to a rotating micro-water flow adjustable light artificial cultivation system and method for coral larvae. Background Technology

[0002] Coral reefs are important marine ecosystems, playing a vital role in maintaining marine biodiversity, protecting coastlines, and supporting fisheries and tourism. In recent years, affected by global climate change, sea surface warming, ocean acidification, pollution, and human activities, coral reef ecosystems have continued to degrade, making coral resource restoration a crucial task in marine ecological restoration.

[0003] Currently, coral restoration mainly includes two methods: asexual reproduction and sexual reproduction. Asexual reproduction relies primarily on coral fragments or pieces to cultivate new individuals, which is relatively simple to operate, but long-term use can easily lead to insufficient genetic diversity in the population. In contrast, sexual reproduction, through coral gamete fertilization, larval rearing, attachment metamorphosis, and juvenile culture to form new coral individuals, can preserve and recombine genetic diversity, which is more conducive to the long-term recovery of coral populations and their adaptation to environmental changes.

[0004] However, the practical application of sexual reproduction in corals faces a critical bottleneck: the extremely high early mortality rate of coral larvae. After attaching and metamorphosing into juveniles, coral larvae are very vulnerable and easily killed by factors such as sediment burial, bacterial infection, algal cover, localized hypoxia, excessive or insufficient light. Especially under artificial breeding conditions, if the larvae are located directly at the bottom of the tank, sediment, metabolic waste, and algal debris can easily accumulate around them, causing them to be covered, infected, or hypoxic, thus significantly reducing the survival rate.

[0005] The growth of coral larvae depends on stable water exchange and a suitable dissolved oxygen environment. When the water flow is too weak, dead zones can easily form around the larvae, making it difficult for sediment particles and metabolic products to disperse in time; when the water flow is too strong, it may cause mechanical impact on newly attached larvae. Therefore, coral larvae culture requires a slow, stable, and continuous micro-flow environment to remove fine sediments without damaging the larvae, thus maintaining local water cleanliness and stable dissolved oxygen levels.

[0006] In addition, coral larvae contain symbiotic zooxanthellae, which provide energy to the corals through photosynthesis and promote coral skeleton calcification. Light is crucial for coral larvae growth, but their light requirements differ at different developmental stages. Newly attached larvae are sensitive to strong light; excessive light can easily cause light stress and death. Conversely, during the rapid growth phase, insufficient light can lead to inadequate photosynthesis by zooxanthellae, weakened skeleton calcification, slow growth, or abnormal morphology. Therefore, the artificial cultivation of coral larvae requires a system that can utilize natural light while allowing for the adjustment of light intensity and direction.

[0007] Existing methods for cultivating coral larvae mostly involve flat or bottom placement, which generally have the following problems: First, larvae are easily affected by sediment and pollutants at the bottom of the tank; second, the distribution of water flow and dissolved oxygen is uneven, easily forming local dead zones; third, the lighting adjustment methods are relatively simple and it is difficult to dynamically adjust according to the different growth stages of the larvae; fourth, the space utilization rate is low, and the number of larvae that can be cultivated per unit of water is limited; fifth, the attached substrate is not easy to remove individually, and it is not convenient to isolate and treat diseases or deaths.

[0008] In view of this, the present invention proposes a rotating micro-flow adjustable light artificial culture device for coral larvae. The core idea is to lift coral larvae from the bottom of the tank to the middle layer of water for culture, provide a clean, slow and stable water flow and dissolved oxygen environment through microfluidic water exchange, and achieve dynamic adjustable light through a rotatable series structure, thereby improving the early survival rate of coral larvae and the efficiency of large-scale cultivation. Summary of the Invention

[0009] To address the problems of high early mortality rate of coral larvae, susceptibility to bottom sediments, insufficient local water exchange, uneven dissolved oxygen distribution, uneven light and water flow, and inconvenience of artificial maintenance in existing technologies, this invention provides a rotating micro-flow adjustable light artificial culture system and method for coral larvae, which can improve the early survival rate of coral larvae and the artificial cultivation efficiency of sexually reproduced coral seedlings.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] Firstly, a rotating micro-current, light-adjustable artificial culture system for coral larvae includes:

[0012] A rotating support assembly, including a turntable, provides support and rotation for the aquaculture system;

[0013] An aeration assembly includes an aeration network connected to an external air supply system, and the aeration network is connected to the rotating table via a connecting assembly.

[0014] A series connection component is connected to the aeration pipeline network via a multi-way valve.

[0015] The rotary micro-water flow adjustable light artificial culture system for coral larvae described above further includes a rotating platform comprising a support base and a bearing platform. The support base is connected to a vertical column via a rotary bearing, and the upper end of the vertical column is connected to the bearing platform.

[0016] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the connecting component further includes a grid plate, which is disposed on the support platform and has a plurality of mesh openings.

[0017] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the aeration pipeline is further provided with several interfaces, at least two of which are connected to the multi-way valve, which is used to connect the series component and the external air supply system.

[0018] The rotating micro-water flow adjustable light artificial culture system for coral larvae described above is further further described in that the connecting component includes a connecting rod, several attachment blocks, and several air stones. The connecting rod is hollow inside and has an air passage that is connected to the aeration pipe network. The attachment blocks have through holes that are adapted to the connecting rod. Several attachment blocks are spaced apart on the connecting rod, and air stones are also fitted on the connecting rod between adjacent attachment blocks. The air stones are connected to the connecting rod.

[0019] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the top and bottom ends of the connecting rod are respectively provided with limit buckles.

[0020] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the surface of the attachment block is further provided with shallow grooves.

[0021] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the air stone is further described as having a hollow or porous breathable structure.

[0022] In the aforementioned rotating micro-water flow adjustable light artificial culture system for coral larvae, the aeration network is further described as an interconnected annular or near-annular pipe structure.

[0023] Secondly, a method for artificially cultivating coral larvae, characterized by the application of the aforementioned rotating micro-water flow adjustable light artificial cultivation system for coral larvae, comprising the following steps:

[0024] S1: Place the rotating platform inside the aquaculture tank and set up the mesh plate on the rotating platform;

[0025] S2: Place the aeration pipe network on the grid plate and connect the aeration pipe network to the external air supply system;

[0026] S3: Insert the attachment blocks with coral larvae and the air stones alternately onto the connecting rod, and connect the connecting rod to the aeration pipe network.

[0027] S4: Turn on the air supply system to allow gas to enter the connecting rod through the aeration pipe network and be released into the water by the air stone, forming a micro-water flow and oxygenation environment around the coral larvae.

[0028] S5: The rotating platform drives the mesh plate, aeration pipe network and series structure to rotate as a whole, so that the coral larvae can receive light and water flow evenly;

[0029] S6: Observe the coral larvae and, based on their growth, clean, replace, or isolate the connecting rods, attachment blocks, and air stones.

[0030] Compared with the prior art, the advantages of this invention are as follows:

[0031] 1. This invention elevates the coral larvae culture structure to the middle water layer away from the bottom sediment by using a rotating platform and a grid plate, which can reduce the risk of sediment burial, pollutant coverage, local hypoxia and pathogen infection, and provide a cleaner and more stable culture environment for coral larvae.

[0032] 2. The present invention uses a structure in which aeration pipe network, connecting rods and air stones are connected to allow gas to be released directly between adjacent attachment blocks, forming stable and slow microbubbles and micro-water flow around coral larvae, increasing local dissolved oxygen levels, promoting water exchange, and reducing the deposition of fine particles.

[0033] 3. This invention uses a rotating platform to drive the mesh plate, aeration pipe network and connecting components to rotate as a whole, so that the coral larvae periodically change the direction of light and water flow, avoiding local long-term shading, unilateral light exposure or uneven water flow, which is conducive to improving the uniformity of larval growth.

[0034] 4. This invention adopts a three-dimensional serial aquaculture structure, which can improve the carrying capacity of coral larvae and the space utilization rate per unit water body; at the same time, the serial components facilitate the overall removal, cleaning, replacement and disease isolation, and are suitable for large-scale artificial breeding of coral larvae and coral reef ecological restoration applications. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1This is a schematic diagram of the overall structure of the rotating micro-water flow adjustable light artificial culture system for coral larvae in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the connecting component in an embodiment of the present invention;

[0038] In the diagram, 1 is the rotating table; 11 is the support base; 12 is the rotating bearing; 13 is the vertical column; 14 is the bearing platform; 2 is the grid plate; 3 is the aeration pipe network; 31 is the multi-way valve; 4 is the connecting component; 41 is the connecting rod; 42 is the air stone; 43 is the attachment block; 44 is the upper limit buckle; and 45 is the lower limit buckle. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, in the embodiments of this invention are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0042] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] This invention provides a technical solution: a rotating micro-water flow adjustable light artificial culture system for coral larvae, such as... Figure 1 and Figure 2 As shown, it includes a supporting rotation component, an aeration component, a connecting component, and a series connection component. The supporting rotation component, serving as the foundation of the entire system, is placed inside the culture tank to provide support and enable overall rotation. The aeration component provides microbubbles and micro-flows to the culture water. The connecting component supports the aeration component and allows for vertical water flow. The series connection component secures the coral larvae and connects to the aeration component to create localized micro-flows and an oxygenated environment. Through the coordinated operation of these components, a three-dimensional, rotating culture of coral larvae in the mid-water layer is achieved, effectively solving problems such as sediment burial, localized hypoxia, and uneven lighting in traditional planar culture.

[0045] The rotating support assembly includes a rotating platform 1, which comprises a support base 11 and a support platform 14. The support base 11 is connected to a vertical column 13 via a rotary bearing 12. The upper end of the vertical column 13 is connected to the support platform 14, allowing the support platform 14 to rotate horizontally relative to the support base 11. In actual installation, the support base 11 is fixed to the bottom of the aquarium, while the support platform 14 extends into the middle water layer of the aquarium. The rotation of the rotating platform 1 can be driven by an external motor or manually. By slowly rotating the entire upper structure, the coral larvae periodically change their light and current orientation, thus avoiding unilateral light exposure or localized dead zones in the water flow, and improving the uniformity of larval growth.

[0046] The connecting components include a mesh plate 2, which is a perforated mesh plate of a certain thickness, mounted on the support platform 14. The mesh plate 2 has several mesh openings, which not only allow water to flow vertically, ensuring vertical water exchange within the aquaculture tank, but also support the aeration pipe network 3 and the connecting components 4. The thickness of the mesh plate 2 provides sufficient mechanical strength to stably support the aquaculture load above; at the same time, the perforated structure minimizes water flow resistance, preventing the mesh plate 2 itself from becoming a site for sediment accumulation. The mesh plate 2 and the support platform 14 can be detachably connected for easy daily cleaning and maintenance.

[0047] The aeration assembly includes an aeration pipe network 3, which is an interconnected annular or near-annular pipe structure placed on a grid plate 2 and connected to a rotating platform 1 via the grid plate 2. The aeration pipe network 3 has several interfaces, at least two of which are connected to multi-way valves 31. The multi-way valves 31 can be three-way valves, four-way valves, etc., depending on the number of connected components. In this invention, three-way valves are used; some three-way valves are used to connect the connected components, and others are used to connect to an external air supply system. Air or oxygen supplied by the external air supply system is distributed to the aeration pipe network 3 and the connected components 4 via the three-way valves. The aeration pipe network 3 itself can also have micropores in its pipes to create auxiliary aeration near the grid plate 2, further promoting water exchange and uniform dissolved oxygen distribution.

[0048] The connecting component 4 includes a connecting rod 41, several attachment blocks 43, and several air stones 42. The connecting rod 41 is hollow inside and has a ventilation channel, which is connected to the aeration network 3 through a three-way valve, allowing gas to enter the connecting rod 41 from the aeration network 3. The attachment blocks 43 have through holes that fit the connecting rod 41, and several attachment blocks 43 are spaced apart on the connecting rod 41. The surface of the attachment blocks 43 has shallow grooves to increase surface roughness, simulating the micro-topography of the natural attachment substrate of coral larvae, and promoting the attachment and growth of coral larvae. The top and bottom of the connecting rod 41 are respectively provided with an upper limit buckle 44 and a lower limit buckle 45 to prevent the attachment blocks 43 and air stones 42 from slipping off the connecting rod 41, ensuring the relative position stability between the components.

[0049] Air stones 42 are hollow or porous and breathable, positioned between adjacent attachment blocks 43 and connected to the connecting rod 41. Air stones 42 serve two purposes: firstly, they maintain the spacing between adjacent attachment blocks 43, reducing shading and water flow obstruction, ensuring sufficient light and water flow for each coral larva on each attachment block 43; secondly, air stones 42 release air from the connecting rod 41 into the water, creating microbubbles and micro-water flows. These micro-water flows are slow, stable, and continuous, creating localized water exchange around the coral larvae, promptly removing fine sediment particles and metabolic products, while maintaining stable local dissolved oxygen levels. This prevents mechanical impact on the larvae due to excessively strong water flow or water quality deterioration due to insufficient flow.

[0050] In practical aquaculture applications, the rotating platform 1 is first placed inside the culture tank, and the mesh plate 2 is mounted on the rotating platform 1. Then, the aeration network 3 is placed on the mesh plate 2, and a three-way valve connects the aeration network 3 to the external air supply system. Next, attachment blocks 43 with coral larvae attached and air stones 42 are alternately threaded onto the connecting rod 41 and secured with limiting clips. The connecting rod 41 is then connected to the aeration network 3 via the three-way valve. After the air supply system is turned on, gas enters the connecting rod 41 through the aeration network 3, and microbubbles are released by the air stones 42, creating a micro-water flow and oxygenated environment around the coral larvae. Finally, the rotating platform 1 drives the mesh plate 2, aeration network 3, and connecting components 4 to rotate slowly as a whole, ensuring that the coral larvae receive even light and water flow. In daily management, the connecting rod 41, attachment blocks 43, and air stones 42 can be cleaned, replaced, or isolated as needed based on the growth of the coral larvae, thus achieving efficient and large-scale artificial breeding.

[0051] In addition, this system can be used in conjunction with a shading system installed above the aquarium to adjust the overall light intensity through shading nets and other means, meeting the light requirements of coral larvae at different growth stages. Simultaneously, the sediment at the bottom of the aquarium, the surface of the mesh plate 2, the surface of the aeration pipe network 3, and the algae on the surface of the attachment block 43 should be cleaned regularly. For attachment blocks 43 that are infected with disease or where all coral larvae have died, the corresponding connecting component 4 can be removed, and the attachment block 43 can be cleaned, replaced, or isolated to reduce the risk of disease spread and minimize maintenance workload.

[0052] Example 1:

[0053] Finger-shaped staghorn coral ( Acropora digitifera Artificial cultivation experiment of larvae. On the third day after the attachment of staghorn coral larvae, the attachment blocks with attached coral larvae were installed in the artificial culture system of this coral larvae with adjustable light and micro-current for cultivation.

[0054] This experiment consisted of five culture tanks, each containing an artificial culture system including a rotating platform 1, a grid plate 2, an aeration network 3, and connecting components 4. The grid plate 2 was mounted above the rotating platform 1, and the aeration network 3 was placed above the grid plate 2 and connected to an external air supply system. The connecting components 4 were connected to the three-way valve of the aeration network 3 via connecting rods 41. Each culture tank contained 16–20 connecting components 4, with 7 attachment blocks 43 on each component 4. Each attachment block 43 held 10–90 coral larvae that had completed metamorphosis.

[0055] During the rearing period, the water temperature in the rearing tank was controlled at 27–28℃, the seawater salinity was maintained at a stable 33‰, and the dissolved oxygen content was kept at 8–9.5 mg / L. An external aeration system operated continuously, with air entering the connecting rods 41 through the aeration pipe network 3 and being released into the water through the air stones 42 between adjacent attachment blocks 43. This created a continuous, slow microbubble and micro-water flow environment around the coral larvae to maintain suitable dissolved oxygen conditions and promote local water exchange. The micro-water flow velocity within the rearing tank was 3–5 cm / s.

[0056] During the cultivation period, the rotating platform 1 drives the mesh plate 2, aeration pipe network 3 and connecting components 4 to rotate as a whole. Every 3 days, it rotates 90 degrees clockwise, so that the coral larvae in different positions and orientations periodically change the direction of light and water flow, thereby obtaining more uniform light and water flow conditions.

[0057] On the 21st day after the larvae were placed in the artificial culture system described in this invention, zooxanthellae were observed to appear inside the curled tentacles at the mouth of the coral larvae, indicating that the coral larvae had successfully established a symbiotic relationship with the symbiotic algae and had begun to have autotrophic capabilities.

[0058] During the aquaculture period, regularly clean the sediment at the bottom of the aquaculture tank, the surface of the mesh plate 2, the surface of the aeration pipe network 3, and the surface of the attachment blocks 43. Observe and maintain the connecting components 4 according to the growth status of the coral larvae. For attachment blocks 43 where the larvae are growing poorly, have become infected with diseases, or have all the larvae have died, the corresponding connecting components 4 can be removed, and the corresponding attachment blocks 43 can be cleaned, replaced, or isolated to reduce the risk of disease spread.

[0059] Survival rates were assessed on the 30th day after the juveniles were introduced into the artificial culture system. The results showed that the overall survival rate of the coral juveniles reached 2%. Compared with the early survival rate of less than one in ten thousand (approximately 0.01%) under natural wild conditions, this represents an improvement of about two orders of magnitude, indicating that the adjustable light and micro-current artificial culture system for coral juveniles can significantly improve the early survival rate of coral juveniles.

[0060] Example 2:

[0061] Hyacinth Staghorn Coral ( Acropora hyacinthusThree-dimensional semi-fixed culture experiment of attached larvae. On the 4th day after the attachment of hyacinth staghorn coral larvae, the stringing component 4 with attached coral larvae was placed into the artificial culture system of this coral larvae with adjustable light and micro-water flow for culture.

[0062] This experiment set up a culture tank with 18 connecting components 4 inside. Each connecting component 4 has 7 attachment blocks 43 attached to it, and each attachment block 43 has 20-80 coral larvae that have completed metamorphosis attached to it.

[0063] During the rearing period, natural light was used, and air was continuously supplied to the aeration pipe network 3 through an external air supply system. On the 18th day after the juveniles were placed in the artificial rearing system, zooxanthellae were observed to appear inside the curled tentacles at the mouth of the hyacinth staghorn coral juveniles, indicating that the coral juveniles had successfully established a symbiotic relationship with the symbiotic algae and had begun to have autotrophic capabilities.

[0064] Thirty days after the juveniles were placed in the artificial culture system with adjustable light and micro-current, the survival rate of the juveniles was statistically analyzed. The results showed that the overall survival rate reached 3%, which is about two orders of magnitude higher than the early survival rate of less than one ten-thousandth (about 0.01%) under natural conditions in the wild. This indicates that the artificial culture system with adjustable light and micro-current can significantly improve the early survival rate of hyacinth staghorn coral juveniles and has good application effects.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rotating micro-water flow adjustable light artificial culture system for coral larvae, characterized in that, include: A rotating support assembly, including a turntable, provides support and rotation for the aquaculture system; An aeration assembly includes an aeration network connected to an external air supply system, and the aeration network is connected to the rotating table via a connecting assembly. A series connection component is connected to the aeration pipeline network via a multi-way valve.

2. The coral larvae rotating micro-water flow adjustable light artificial culture system according to claim 1, characterized in that, The rotary table includes a support base and a load-bearing platform. The support base is connected to a vertical column via a rotary bearing, and the upper end of the vertical column is connected to the load-bearing platform.

3. The rotating micro-water flow adjustable light artificial culture system for coral larvae according to claim 2, characterized in that, The connecting component includes a grid plate, which is disposed on the bearing platform and has a plurality of mesh holes.

4. The coral larvae rotating micro-water flow adjustable light artificial culture system according to claim 1, characterized in that, The aeration pipeline is provided with several interfaces, and at least two of the interfaces are connected to the multi-way valve, which is used to connect the series component and the external air supply system.

5. The rotating micro-water flow adjustable light artificial culture system for coral larvae according to claim 1, characterized in that, The connecting component includes a connecting rod, several attachment blocks, and several air stones. The connecting rod is hollow inside and has a ventilation channel, which is connected to the aeration pipe network. The attachment blocks have through holes that are adapted to the connecting rod. Several attachment blocks are spaced apart on the connecting rod, and air stones are also fitted on the connecting rod between adjacent attachment blocks. The air stones are connected to the connecting rod.

6. The rotating micro-water flow adjustable light artificial culture system for coral larvae according to claim 5, characterized in that, Limiting buckles are provided at the top and bottom of the connecting rod.

7. The coral larvae rotating micro-water flow adjustable light artificial culture system according to claim 5, characterized in that, The surface of the attachment block is provided with shallow grooves.

8. The coral larvae rotating micro-water flow adjustable light artificial culture system according to claim 5, characterized in that, The gas stone has a hollow or porous permeable structure.

9. The rotating micro-water flow adjustable light artificial culture system for coral larvae according to claim 4, characterized in that, The aeration network is an interconnected ring or near-ring pipe structure.

10. A method for artificially cultivating coral larvae, characterized in that, The application of the rotating micro-water flow adjustable light artificial culture system for coral larvae as described in any one of claims 1-9 includes the following steps: S1: Place the rotating platform inside the aquaculture tank and set up the mesh plate on the rotating platform; S2: Place the aeration pipe network on the grid plate and connect the aeration pipe network to the external air supply system; S3: Insert the attachment blocks with coral larvae and the air stones alternately onto the connecting rod, and connect the connecting rod to the aeration pipe network. S4: Turn on the air supply system to allow gas to enter the connecting rod through the aeration pipe network and be released into the water by the air stone, forming a micro-water flow and oxygenation environment around the coral larvae. S5: The rotating platform drives the mesh plate, aeration pipe network and series structure to rotate as a whole, so that the coral larvae can receive light and water flow evenly; S6: Observe the coral larvae and, based on their growth, clean, replace, or isolate the connecting rods, attachment blocks, and air stones.

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