Device and method for three-dimensional seedling culture and bottom sowing proliferation of buried shellfish

Abstract

The invention relates to the field of aquaculture, in particular to a device and method for three-dimensional seedling culture and bottom sowing proliferation of buried shellfish, the device comprises a culture frame and a culture disc, the culture disc comprises side plates, placing strips, seedling attaching devices and connectors, the side plates define a rectangular frame, the top and the bottom of the rectangular frame are both open, and the placing strips are arranged on the rectangular frame. A plurality of water permeable holes are formed in the side plates, the shelving strips are arranged on the outer sides of the side plates in parallel, the seedling attachment device is supported and blocked at an opening in the bottom of the rectangular frame, the seedling attachment device is connected with the opening in the bottom through the connector, and the breeding frame comprises a three-dimensional frame and shelving strip frames. The placing strip frames are arranged in the three-dimensional frame in parallel, and the placing strips are placed on the placing strip frames. By using the device provided by the invention, the density of the fries during attachment can be adjusted, so that the density of the attached fries tends to be reasonable, and the density suitable for the growth of the fries is obtained.

Description

Technical Field

[0001] The present invention relates to the field of aquaculture, and in particular to a device and method for vertical seeding and bottom seeding proliferation of buried shellfish. Background Art

[0002] Benthic shellfish are an important biological species for expanding the utilization of the bottom space in the shallow seas of northern my country. The supply of seedlings of suitable specifications is a very important link in the development of artificial aquaculture. At present, provinces such as Shandong and Liaoning can successfully carry out the breeding of seedlings of various benthic shellfish such as hairy clams, green clams, and Chinese tongue. In shallow sea mudflat shellfish aquaculture, bottom seeding of shellfish seedlings is a major task and a way to increase the production and income of mudflat shellfish. The traditional method of bottom seeding of shellfish seedlings is to sow the shellfish seedlings directly into the shallow sea water. Due to the influence of waves, currents, tides and other factors, the shellfish seedlings drift with the sea water, making it difficult to sow the shellfish seedlings to the designated area, affecting the effect of bottom seeding and proliferation of shellfish.

[0003] Therefore, the two operating modes of shellfish breeding and sowing in the current shellfish farming process require the use of different devices during implementation, and the shellfish seedlings are easily damaged, drifted and lost during the breeding and sowing processes, which is an urgent problem that needs to be solved by technical personnel in this field. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide an integrated device for raising and sowing buried shellfish seedlings, which can ensure the growth of shellfish during raising seedlings, ensure that the position of shellfish in the mudflats changes relatively little during sowing, and can find the sown shellfish in time. Shellfish seedling proliferation device and usage method.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a device for vertical seedling cultivation and bottom sowing proliferation of buried shellfish, including a breeding frame and a breeding tray, the breeding tray including side panels, shelves, seedling attachment devices, and connectors, the side panels form a rectangular frame, the top and bottom of the rectangular frame are open, the side panels are provided with a number of water-permeable holes, the shelves are arranged parallel to the outside of the side panels, the seedling attachment devices are supported at the opening at the bottom of the rectangular frame, the seedling attachment devices are connected to the opening at the bottom through the connector, the breeding frame includes a three-dimensional frame and a shelf rack, the shelf rack is arranged parallel to the inside of the three-dimensional frame, and the shelves are placed on the shelf rack.

[0006] The above-mentioned device for vertical seedling cultivation and bottom seeding proliferation of buried shellfish, the three-dimensional frame includes an upper frame, a lower frame, side rods, a rear gear rod, and a front gear rod. The outer diameter of the upper frame is larger than the outer diameter of the lower frame. The side rods connect the upper frame and the lower frame from both sides. The front gear rod and the rear gear rod connect the upper frame and the lower frame from the front and rear sides. The shelf frame is arranged on the side rods parallel to the upper frame.

[0007] The above-mentioned device for vertical seedling cultivation and bottom seeding proliferation of buried shellfish, the seedling attachment uses a sieve mesh, the seedling attachment includes a net body and a net edge, the net edge is arranged in the circumference direction of the net body, and the net edge is connected to the bottom of the side plate through the connector.

[0008] The above-mentioned device for vertical seedling growth and bottom seeding proliferation of buried shellfish, the seedling attachment device includes a growth plate, a support plate, and a slot, the slot is arranged on the inner side of the bottom of the side plate, the growth plate is horizontally placed inside the frame, a number of water-permeable holes are arranged on the growth plate, the support plate is inserted into the slot, and the growth plate is parallel to the support plate.

[0009] The above-mentioned device for vertical seeding and bottom seeding of buried shellfish is provided with a plurality of fine holes on the support plate, and nanotubes are provided at the bottom of the support plate, and the nanotubes release nanobubbles above the support plate.

[0010] The above-mentioned device for vertical breeding and bottom seeding of buried shellfish, the culture plate also includes a reinforcing bar, the reinforcing bar is arranged below the slot, the support plate includes a first support plate and a second support plate, the first support plate is inserted into the slot on the front side of the growth plate, and the second support plate is inserted into the slot on the rear side of the growth plate.

[0011] The above-mentioned device for vertical seedling cultivation and bottom seeding of buried shellfish, the rear gear rod is fixedly connected to the upper frame and the lower frame respectively, the front gear rod is rotationally connected to the lower frame through a rotating shaft structure, and the front gear rod is connected to the upper frame through a locking structure.

[0012] The above-mentioned device for vertical breeding and bottom seeding of buried shellfish is arranged in the breeding frame according to the height of the breeding frame. There are no less than 3 breeding trays arranged in sequence from top to bottom in the breeding frame. The width of the breeding trays becomes shorter from top to bottom, and the breeding trays are staggered front and back in the breeding frame.

[0013] The above-mentioned device for vertical breeding and bottom seeding of buried shellfish, the culture plate also includes a plate cover, the plate cover is provided with a plurality of water-permeable holes, and the plate cover is placed on the top opening of the culture plate.

[0014] A method for vertical seeding and bottom seeding of buried shellfish, comprising the following steps: Step 1: Place the culture frame in the culture area and sow the shellfish seedlings in the three-dimensional frame. The seedlings are in the planktonic stage and are suspended within the three-dimensional frame. Spread the attached culture sand at the bottom of the culture frame and insert the culture frame into the three-dimensional frame along the rack. Place the culture trays in order from small to large, from the bottom of the culture frame upwards. Step 2: When the shellfish seedlings are shellfish with a fast burrowing speed, vertical seeding and bottom seeding proliferation are carried out using the above-mentioned device for vertical seeding and bottom seeding proliferation of buried shellfish. When the shellfish seedlings enter the growth state of attaching to the bottom layer, the shellfish seedlings are continuously cultivated, and step 3 is carried out when the shellfish seedling cultivation enters the sowing period; Step 3: Pull the culture tray out of the three-dimensional frame. After reaching the sowing area, directly turn the culture tray upside down on the sowing area so that the seedlings in the sowing period are attached to the sowing area. Step 4: When the shellfish seedlings are slow-burrowing shellfish, vertical seeding and bottom seeding proliferation of buried shellfish are performed using the device for vertical seeding and bottom seeding proliferation of buried shellfish according to any one of claims 4 to 9. When the shellfish seedlings enter a growth state of attachment to the bottom layer, nanobubbles are released and bait is placed into the culture frame. The shellfish continue to grow on the growth plate. Step 5 is performed when the shellfish seedling cultivation enters the sowing period. Step 5: After the shellfish have grown to the seeding size, remove the culture tray from the culture frame and transfer it to the seeding location; Step 6: At the sowing position, pull out the support plate from the bottom slot and cover the top opening of the culture plate with the plate cover. The shellfish can enter the seabed of the sowing area along the position where the support plate is taken out.

[0015] The present invention provides a device and method for vertical seeding and bottom seeding of burrowing shellfish, with the following beneficial effects: The device can adjust the density of seedlings upon attachment, ensuring a reasonable density and achieving an optimal density for seedling growth. The use of a silk screen ensures good permeability, maintaining a favorable seedling cultivation environment. This facilitates use and improves efficiency when cultivating fast-burrowing shellfish. Furthermore, the device, equipped with a support plate and a growth plate, allows the bottom support plate to be directly removed when the shellfish are already growing within the culture sand, facilitating continued growth. The present invention uses racks and bars to suspend the culture tray in the culture frame, which is conducive to the circulation of water and beneficial to the growth of shellfish. By arranging water-permeable holes on the culture tray, water outside the culture frame can be convectively exchanged with water in the culture tray at any time. By using staggered culture trays, it is convenient for suspended shellfish in the planktonic period to adhere to the attachment tray more evenly, preventing the density of shellfish seedlings from being too high. The parallel culture trays have a gap between them, which makes it convenient to observe the growth of shellfish in the culture tray at any time. By arranging a front gear lever that rotates by buckling, it is convenient to push and pull the culture tray in and out of the culture frame while completing the blocking, so that the culture personnel can observe the growth of shellfish at any time. By arranging nanotubes on the supporting plate, oxygen enrichment of the culture pool can be achieved through nano-micro bubbles, and the microorganisms in the culture tray can be suppressed, the excrement of shellfish can be degraded, and the survival rate of shellfish culture can be improved. The supporting plate is installed in the frame by using a slot. When the cultivated shellfish are placed in the culture area, the supporting plate can be directly pulled out to complete the sowing of the shellfish in the culture area. The shellfish in the culture tray can be protected by the plate cover to prevent animals from eating them. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the breeding frame structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the breeding tray of the present invention; Figure 4 This is a side view of the first culture tray of the present invention; Figure 5 This is a side structural diagram of the second breeding tray of the present invention; Figure 6 This is a schematic diagram of the breeding area layout of the present invention.

[0017] Explanation of the accompanying drawings: breeding frame 10, upper frame 11, lower frame 12, side rod 13, rear gear rod 14, front gear rod 15, rotating shaft structure 16, breeding tray 20, frame 21, growth plate 22, support plate 23, shelf 24, side plate 25, slot 26, net body 27, net edge 28, water injection pipe 30, main water injection port 31, auxiliary water injection port 32, drain port 33, walkway 40. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions and objectives of the present invention, the technical solutions and objectives of the present invention are described below in conjunction with specific implementation methods and drawings.

[0019] Example 1 This embodiment mainly explains the proliferation and seeding device of slow-moving shellfish. Figure 1-4 As shown, a device for vertical breeding and bottom seeding of buried shellfish includes a breeding frame 10 and a breeding tray 20. The breeding frame includes a three-dimensional frame and a shelf rack, which are welded using rods. The three-dimensional frame includes an upper frame 11, a lower frame 12, side rods 13, a rear bar 14, and a front bar 15. The outer diameter of the upper frame is larger than the outer diameter of the lower frame. The side rods connect the upper frame and the lower frame from both sides. The front bar and the rear bar connect the upper frame and the lower frame from the front and rear sides. The shelf rack is arranged on the side rods parallel to the upper frame, and the shelf rack is arranged inside the three-dimensional frame.

[0020] Furthermore, to facilitate the removal and placement of the culture tray, the rear lever of the culture frame is fixedly connected to the upper and lower frames respectively, the front lever is rotatably connected to the lower frame via a rotating shaft structure 16, and the front lever is connected to the upper frame via a locking structure. When the locking structure is released, the front lever can be rotated to pull the culture tray out of the culture frame. The locking structure can be fixed using bolts and screw holes or straps.

[0021] The breeding tray includes a rectangular frame 21, a seedling attachment, and a connector. The rectangular frame is surrounded by side panels 25. The top and bottom of the rectangular frame are open. The seedling attachment is connected to the opening at the bottom of the rectangular frame through a connector. The shelves 24 are horizontally arranged on the left and right sides of the rectangular frame. The seedling attachment is supported at the opening at the bottom of the rectangular frame. The seedling attachment includes a growth plate 22 and a support plate 23. The connector uses a slot 26 arranged under the side panel. The side panel is provided with a plurality of water-permeable holes. The shelf is arranged on the outside of the side panel, and the slot is arranged on the inside of the bottom of the side panel. The growth plate is placed inside the frame. A growth plate rack can be arranged in the middle and lower position of the side panel. The growth plate is placed flat on the growth plate rack. The growth plate is provided with a plurality of water-permeable holes. The support plate is inserted in the slot. The growth plate is parallel to the support plate. The distance between the growth plate and the support plate is 1-5 cm, which is set according to the thickness of the breeding sand and the size of the shellfish.

[0022] The frame and the support plate are connected by the slots to form a box-like structure with an open top. The shelves are placed on the shelf rack. In order to fix them and prevent the breeding tray from shaking up and down under the impact of the water flow, an upward-turned shelf groove is provided at the rear end of the shelf rack. The shelves are inserted into the shelf groove, and the front part is pushed and fixed using a front lever. A baffle can also be set at the front end of the shelf rack. When pushing and pulling, the shelf is inserted into the gap between the baffle and the shelf rack.

[0023] Furthermore, in order to facilitate the flow of water and the replenishment of nutrients, a number of fine holes are provided on the support plate, and nanotubes are provided at the bottom of the support plate, which release nanobubbles above the support plate.

[0024] Furthermore, the cultivation tray also includes a reinforcement bar, which is arranged below the slot. The support plate includes a first support plate and a second support plate. The first support plate is inserted into the slot on the front side of the growth plate, and the second support plate is inserted into the slot on the back side of the growth plate. By using the first support plate and the second support plate, the support plate can be more conveniently pulled out from both sides.

[0025] According to the height of the breeding frame, no less than 3 breeding trays are arranged in the breeding frame from top to bottom, and the width of the breeding trays becomes shorter from top to bottom.

[0026] When bottom seeding is carried out, in order to prevent the loss of mussel seedlings, the culture tray also includes a tray cover, which is provided with a plurality of water-permeable holes and is placed on the top opening of the culture tray.

[0027] Example 2 The similarities between this embodiment and embodiment 1 are not repeated here, and the difference lies in the different breeding trays.

[0028] The culture tray described in this embodiment is mainly used for shellfish species with fast sand diving speed, such as Figure 5 As shown, the culture tray of this embodiment also includes side panels, shelves, seedling attachments, and connectors. The seedling attachments are made of a silk screen mesh, which is a synthetic fiber mesh with an 80-100 mesh opening. The silk screen mesh includes a mesh body 27 and a mesh edge 28. The mesh edge is arranged along the circumference of the mesh body. The mesh body is cut to size according to the bottom opening of the rectangular frame formed by the side panels. The mesh edge extends outward from the mesh body by 2-4 centimeters. Generally, the mesh edge extends outward from the edge of the mesh body by two centimeters. The extension length of the mesh edge is related to the thickness of the culture sand. The mesh edge is connected to the bottom of the side panels via connectors. The connectors can be fixed using glue, pressure strips, or sutures. Using existing fixing methods, the mesh edge is fixed to the bottom of the side panels, so that the mesh body serves as the bottom support of the culture tray. The use of silk screen mesh can better enhance the permeability of the water in the culture tray.

[0029] Example 3 This embodiment describes a method for vertical seeding and bottom seeding proliferation of slow-buried shellfish species, a method for vertical seeding and bottom seeding proliferation of buried shellfish, which uses the device for vertical seeding and bottom seeding proliferation of buried shellfish in Example 1 for vertical seeding and bottom seeding proliferation, and includes the following steps.

[0030] Step 1: Insert the support plate into the frame along the slot, place the growth board in the frame above the support plate, and place the breeding sand into the breeding frame.

[0031] Step 2: Place the culture frame in the culture area and sow the shellfish seedlings in the three-dimensional frame. At this time, the seedlings are in the planktonic stage and suspended within the range of the three-dimensional frame. Spread the culture sand at the bottom of the culture frame and insert the culture frame into the three-dimensional frame along the shelf. Place the culture trays in order from small to large, from the bottom of the culture frame upwards.

[0032] Step 3: When the shellfish seedlings enter the growth state of attaching to the bottom layer, release nanobubbles and put bait into the breeding frame. The shellfish continue to grow on the growth plate. Step 4 is carried out when the shellfish seedlings enter the sowing period.

[0033] Step 4: Once the shellfish have grown to the seeding size, remove the culture tray from the culture frame and transfer it to the seeding location.

[0034] Step 5: At the sowing position, pull out the support plate from the bottom slot and cover the top opening of the culture plate with the plate cover. The shellfish can enter the seabed of the sowing area along the position where the support plate is taken out.

[0035] When using this method for vertical breeding and bottom seeding of shellfish, since shellfish spend a long time burrowing in the sand, the bottom opening can take advantage of the shellfish's previous burrowing in the sand. After the support plate is pulled out, the sand is in direct contact with the mud and sand in the breeding area, which can facilitate the burrowing of shellfish and speed up the burrowing speed.

[0036] Example 4 This embodiment describes a method for vertical seeding and bottom seeding proliferation of fast-burrowing shellfish species, a method for vertical seeding and bottom seeding proliferation of buried shellfish, which uses the device for vertical seeding and bottom seeding proliferation of buried shellfish in Example 2 for vertical seeding and bottom seeding proliferation, and includes the following steps.

[0037] Step 1: Place the culture frame in the culture area and sow the shellfish seedlings in the three-dimensional frame. At this time, the seedlings are in the planktonic stage and suspended within the range of the three-dimensional frame. Spread the attached culture silt at the bottom of the culture frame and insert the culture frame into the three-dimensional frame along the shelf. Place the culture plates in order from small to large, from the bottom of the culture frame upwards.

[0038] Step 2: When the shellfish seedlings are shellfish that burrow into the sand quickly, use the device in Example 2 to carry out vertical seeding and bottom sowing proliferation. When the shellfish seedlings enter the growth state of settling to the bottom layer, the shellfish seedlings are continuously cultivated, and step 3 is carried out when the shellfish seedling cultivation enters the sowing period.

[0039] Step 3: Pull the culture tray out of the three-dimensional frame. After reaching the sowing area, directly turn the culture tray upside down on the breeding area so that the seedlings during the sowing period are attached to the breeding area.

[0040] When using this method for vertical breeding and bottom seeding of shellfish, since shellfish burrow into the sand quickly, the culture tray can be directly turned upside down in the culture area. While the culture sand is settling, the shellfish can also burrow into the sand quickly, and the culture tray can be quickly recovered, which reduces the cost of the culture tray and increases its utilization rate.

[0041] Example 5 like Figure 1-4 As shown, a device for vertical seeding and bottom seeding of buried shellfish includes a culture frame and a culture tray. The length × width × height of the culture frame is 420 × 370 × 320 mm, and the culture tray is a plastic basket with a tray added to the bottom of the plastic basket.

[0042] The breeding frame includes support rods I, support rods II, a rectangular support frame I at the top, and a rectangular support frame II at the bottom. The widths of support frame I and support frame II are equal, and the length of support frame I is greater than that of support frame II. The two long sides of the support frame I are connected to the support frame II by 1 to 3 support rods I, and there are preferably 2 support rods I on each side. The two long sides of the support frame I are connected to the support frame II by multiple support rods II arranged in parallel (arranged relatively densely), and the spacing between adjacent support rods II is 3 to 10 cm. The top of the support rod II is arc-shaped, which not only makes it easy to observe inside the breeding frame, but also facilitates the transportation of the breeding tray. A M-shaped support frame for supporting the breeding tray is fixed in the support frame II, and legs are installed at the bottom of the support frame II.

[0043] The height of the breeding tray is 20 cm. The breeding tray includes a rectangular frame and a support plate arranged at the bottom of the frame. The support plate is slidably connected to the frame. A growth plate is arranged in the frame above the support plate. Powdered sand for shellfish growth is placed between the support plate and the growth plate. The powdered sand is sand that has been sieved and disinfected. The diameter of the water-permeable holes on the side plate, support plate, and tray cover is smaller than the particle size of the sand to prevent sand from leaking out during the breeding process and making the breeding water turbid.

[0044] Example 6 The following is about the arrangement of the broodstock culture device in the culture pond, its direction is according to Figure 5 Take the up, down, left and right shown as an example.

[0045] A method for vertical seeding and bottom seeding of burrowing shellfish using a device for vertical seeding and bottom seeding of burrowing shellfish comprises the following steps: (1) In the outward direction of the culture pond (i.e. Figure 5A water injection pipe 30 is laid on the edge of the pool, and a plurality of main water injection ports 31 facing the culture pool are opened on the water injection pipe. The culture pool faces inward (i.e. Figure 5 An auxiliary water injection port 32 is provided at one end of the pool (in the upper direction), and a drain port 33 for discharging aquaculture wastewater is provided at the other end.

[0046] (2) Place the culture frame 10 of Example 1 in the culture pond, near the left and right (i.e. Figure 5 The two rows of breeding frames on the two sides of the pool (left and right directions) are arranged according to 1×n (n represents the number of breeding frames, the specific number is determined by the size of the breeding pool).

[0047] The breeding frames in the breeding pond are arranged in 1-5 rows, preferably 3 rows, depending on the size of the breeding pond. Each row is arranged in 2×n rows, and there is a walkway 40 between adjacent rows. The width of the walkway is 40 cm. One side of the support rod 1 of the breeding frame faces the walkway.

[0048] There are also breeding frames arranged in 1×m (m represents the number of breeding frames, and the specific number is determined by the size of the breeding pond) placed on the side of the pool near the auxiliary water inlet.

[0049] (3) Place the culture tray of Example 1 in each culture frame, and inject sterilized seawater into the culture pond using a water injection pipe.

[0050] (4) Place 2-3 broodstock in each culture frame. The broodstock should be one or more of the following: clams, giant clams, purple clams, large bamboo clams, and comb clams. Regularly add bait to the culture frame. During the culture process, weak broodstock will drill out of the sand and can be picked out at any time.

[0051] (5) Drain the water and clean the pool bottom every three days.

[0052] By using the device and broodstock cultivation method of the present invention, broodstock of Coleus truncatus, Coleus sutchuenensis, Coleus purpurogenus, Coleus sutchuenensis, and Coleus sutchuenensis were cultivated, and the fertilization rate and hatching rate were shown in Table 1. The fertilization rate was above 80%, and the hatching rate was above 70%.

[0053] Table 1 Fertilization rate (%) and hatching rate (%) of broodstock Broodstock species Xishi tongue Giant Clam Purple Stone Clam Big razor clam Ctenophora ctenophora Fertilization rate 95 92 90 93 83 hatching rate 90 80 76 77 72 .

[0054] (6) After the cultivation is completed, take the culture tray out of the culture frame and place it in the sowing area. Pull open the support plate and the shellfish seedlings will be implanted in the shallows.

[0055] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A device for vertical seeding and bottom seeding of buried shellfish, characterized by: It includes a breeding frame and a breeding tray. The breeding tray includes side panels, shelves, seedling attachments, and connectors. The side panels form a rectangular frame. The top and bottom of the rectangular frame are open. The side panels are provided with a plurality of water-permeable holes. The shelves are arranged in parallel on the outside of the side panels. The seedling attachment is supported at the opening at the bottom of the rectangular frame. The seedling attachment is connected to the opening at the bottom through the connector. The breeding frame includes a three-dimensional frame and a shelf rack. The shelf rack is arranged in parallel inside the three-dimensional frame, and the shelves are placed on the shelf rack.

2. The device for vertical seeding and bottom seeding of buried shellfish according to claim 1, characterized in that: The three-dimensional frame includes an upper frame, a lower frame, side bars, a rear gear bar, and a front gear bar. The outer diameter of the upper frame is larger than the outer diameter of the lower frame. The side bars connect the upper frame and the lower frame from both sides. The front gear bar and the rear gear bar connect the upper frame and the lower frame from the front and rear sides. The shelf frame is arranged on the side bars in parallel with the upper frame.

3. The device for vertical seeding and bottom seeding of buried shellfish according to claim 2, characterized in that: The seedling attachment device uses a sieve mesh and comprises a mesh body and a mesh edge. The mesh edge is arranged in the circumference direction of the mesh body and is connected to the bottom of the side plate around the periphery through the connector.

4. The device for vertical seeding and bottom seeding of buried shellfish according to claim 2, characterized in that: The seedling attachment device includes a growth plate, a support plate, and a slot. The slot is arranged on the inner side of the bottom of the side plate. The growth plate is horizontally placed inside the frame. Several water-permeable holes are arranged on the growth plate. The support plate is inserted into the slot, and the growth plate is parallel to the support plate.

5. The device for vertical seeding and bottom seeding of buried shellfish according to claim 4, characterized in that: The support plate is provided with a plurality of fine holes, and the bottom of the support plate is provided with nanotubes, which release nanobubbles above the support plate.

6. The device for vertical seeding and bottom seeding of buried shellfish according to claim 5, characterized in that: The breeding tray also includes a reinforcing strip, which is arranged below the slot. The support plate includes a first support plate and a second support plate. The first support plate is inserted into the slot on the front side of the growth plate, and the second support plate is inserted into the slot on the rear side of the growth plate.

7. The device for vertical seeding and bottom seeding of buried shellfish according to any one of claims 3 to 6, characterized in that: The rear gear lever is fixedly connected to the upper frame and the lower frame respectively, the front gear lever is rotationally connected to the lower frame via a rotating shaft structure, and the front gear lever is connected to the upper frame via a locking structure.

8. The device for vertical seeding and bottom seeding of buried shellfish according to claim 7, characterized in that: According to the height of the breeding frame, no less than 3 breeding trays are arranged in sequence from top to bottom in the breeding frame, the width of the breeding trays becomes shorter from top to bottom, and the breeding trays are staggered front and back in the breeding frame.

9. The device for vertical seeding and bottom seeding of buried shellfish according to claim 8, characterized in that: The breeding tray also includes a tray cover, which is provided with a plurality of water-permeable holes. The tray cover is placed on the top opening of the breeding tray.

10. A method for vertical seeding and bottom seeding of buried shellfish, characterized in that: The following steps are involved: Step 1: Place the culture frame in the culture area and sow the shellfish seedlings in the three-dimensional frame. The seedlings are in the planktonic stage and are suspended within the three-dimensional frame. Spread the attached culture sand at the bottom of the culture frame and insert the culture frame into the three-dimensional frame along the rack. Place the culture trays in order from small to large, from the bottom of the culture frame upwards. Step 2: When the shellfish seedlings are shellfish with a fast burrowing speed, vertical seeding and bottom seeding proliferation of buried shellfish are carried out using the device for vertical seeding and bottom seeding proliferation of buried shellfish according to any one of claims 3 or 7 to 9. When the shellfish seedlings enter the growth state of attachment to the bottom layer, the shellfish seedlings are continuously cultivated, and step 3 is carried out when the shellfish seedling cultivation enters the sowing period; Step 3: Pull the culture tray out of the three-dimensional frame. After reaching the sowing area, directly turn the culture tray upside down on the sowing area so that the seedlings in the sowing period are attached to the sowing area. Step 4: When the shellfish seedlings are slow-burrowing shellfish, vertical seeding and bottom seeding proliferation of buried shellfish are performed using the device for vertical seeding and bottom seeding proliferation of buried shellfish according to any one of claims 4 to 9. When the shellfish seedlings enter a growth state of attachment to the bottom layer, nanobubbles are released and bait is placed into the culture frame. The shellfish continue to grow on the growth plate. Step 5 is performed when the shellfish seedling cultivation enters the sowing period. Step 5: After the shellfish have grown to the seeding size, remove the culture tray from the culture frame and transfer it to the seeding location; Step 6: At the sowing position, pull out the support plate from the bottom slot and cover the top opening of the culture plate with the plate cover. The shellfish can enter the seabed of the sowing area along the position where the support plate is taken out.

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