Marine farming system and method

Abstract

The present application relates to a mariculture system and method, which comprises a net cage assembly and a fry tank body detachably connected with the net cage assembly; the fry tank body is respectively connected with a corresponding pull rope part; a counterweight anchor is hung below the net cage assembly and the fry tank body; the present application has reasonable design, compact structure and convenient use.

Description

Technical Field

[0001] This invention relates to marine aquaculture systems and methods. Background Technology

[0002] Existing marine ranches are generally divided into fixed structures or mobile structures.

[0003] At that time, fixed structures were generally made of artificial reefs. However, the problems were that harvesting was troublesome, it was not suitable for deep-sea aquaculture, and it was not suitable for migrating fish schools. In the event of a strong typhoon or large-scale marine pollution, it would lead to harvest risks.

[0004] Mobile fish farms are convenient to move, facilitating later fishing and centralized management of fish populations, and can mitigate some of the risks associated with fixed fish farms. However, they have drawbacks: they require long-term coordination with the fishing vessel captain, and the fish populations cannot be graded, resulting in healthy fish being mixed with weak or diseased fish. This inability to classify fish by grade affects their taste. Furthermore, fry are easily eaten by larger fish or escape from the net cages, leading to waste. If the mesh is too fine, it creates high resistance, resulting in poor water exchange efficiency.

[0005] Moreover, dead fish cannot be discharged in time, leading to pollution or the introduction of diseases.

[0006] Solving the above-mentioned technical problems has become a technical challenge for marine aquaculture. Summary of the Invention

[0007] The technical problem to be solved by this invention is to provide a marine aquaculture system and method.

[0008] To solve the above problems, the technical solution adopted by the present invention is as follows: To achieve graded fish farming, a marine aquaculture system includes a net cage assembly and fry boxes detachably connected to the net cage assembly; each fry box is connected to a corresponding pull rope. Counterweight anchors are suspended below the net cage components and fish fry boxes.

[0009] As a further improvement to the above technical solution: In order to realize the breeding of fish fry, the fish fry box includes box component A; A batching group A and / or a batching group B are inserted through the box component A; Fish delivery pipe assembly A passes through the side wall of box component A; A hanging assembly A is provided above the box component A for suspending the corresponding pull rope.

[0010] Box component A includes a box frame A; a central wire mesh box B is installed inside the cavity of the box frame A; Central cage B includes cage frame B; A telescopic rotating component is installed on the outer wall of either the mesh frame A or the mesh frame B. The telescopic rod on the telescopic assembly is equipped with a hook and / or a slot so that when the telescopic rod enters the cage assembly, it hooks into the cage assembly.

[0011] To facilitate material filling, buoyancy components are connected to the mesh frame A of the box and / or the mesh box assembly respectively; The buoyancy assembly includes a buoyancy frame that is connected to the corresponding cage frame A and / or cage assembly via a set of traction ropes; The buoyancy frame is provided with an upper inlet for the feeding pipe fitting, and the lower outlet is provided in the corresponding box frame A and / or box assembly; A buoyancy ball B is installed on the buoyancy frame so that the inlet of the feeding pipe floats on the water surface; The batching group A includes a feeding pipe fitting installed in the mesh cage frame B.

[0012] In order to enable the fish to swim in one direction, a one-way conical nozzle A larger than the mesh size and a delivery pipe are installed on the outer wall of the net cage frame B. The inlet of the one-way conical nozzle A is equipped with an electric baffle; One-way cone nozzle A is located at the inlet of the delivery pipe; The one-way conical nozzle A uses biomimetic petals that are elastic and resistant to seawater corrosion; The gaps between adjacent bionic petals are smaller than the shape of the fish fry, preventing the fish fry from leaving the net cage frame B; When adjacent bionic petals open, they are larger than the shape of the fish fry, and the opening force of the bionic petals is less than the forward momentum of the fish fry with the set shape. Several outgoing pipelines connect to a merging pipeline; a bypass pipeline A is installed on the merging pipeline; the merging pipeline is connected to a secondary pipeline; and a bypass pipeline B is installed on the secondary pipeline. Bypass pipes A and B are connected to bidirectional pumps, which are used to extract the accumulated fish under negative pressure or pressurize and discharge them. For secondary pipelines, the transverse section of the secondary pipeline is a snake neck; a shoulder step is provided at the end of the snake neck; A traction arm is connected to the shoulder step.

[0013] To prevent the fish fry from swimming out, the net cage frame B includes a bottom net C and a top cover C of the fish cage assembly connected as one piece; a seedling inner box is set in the inner cavity of the net cage frame B. The seedling inner box includes a lower net box body D and a net box cover D that are fastened together; A lower telescopic top rod D is provided at the bottom of the lower net box body D, which is used to be inserted and fixed to the mesh on the bottom net C of the fish box assembly; A hanging corner part C is provided on the wire mesh frame B for connecting to the inside of the wire mesh frame A. A pull rope D is provided on the cover D of the network box for hanging the cover D; The inner box of the seedlings is misaligned with the mesh of the net cage frame B, and the gap between the inner box of the seedlings and the net cage frame B is smaller than the designed shape of the fish fry. The telescopic top rod D is raised or lowered so that the inner box of the seedlings coincides with the mesh of the net box frame B, making it larger than the set shape of the fish seedlings.

[0014] To avoid pollution from diseased or dead fish, a marine aquaculture system includes a cage frame A and / or a cage frame B; and an upper cleaning cage assembly A with its opening facing downwards and / or a lower cleaning cage assembly B with its opening facing upwards are provided at the corners of the cage frame A and / or the cage frame B. The upper cleaning cage assembly A and the lower cleaning cage assembly B have the same structure; Upper cleaning cage assembly A includes a cleaning base; A cleaning cover with an opening at the bottom is installed on the cleaning base; The cleaning cage has a storage cavity with mesh at the top; a central opening in the middle to allow live fish to freely enter and exit the storage cavity; and a rotating spiral disc at the bottom, which is a tapered spiral disc. An extended side cage wall is provided on one side of the rotating spiral disk; The extended side cage wall has a process opening for rotating and feeding dead fish; The rotating spiral disk is equipped with paddles or friction surfaces.

[0015] As a further improvement to the above technical solution: To enable monitoring of diseased fish, a rotary cutter is installed inside the storage cavity and / or a pressure sensor is located on the top surface inside the cleaning base.

[0016] When the cage components are U-shaped or S-shaped. The cage assembly includes the cage sidewall E; A one-way baffle is provided on the side wall E of the cage, and the one-way baffle corresponds to the top cone nozzle B; A feeding group D is provided on the cage assembly; The traction rope unit is equipped with a traction operation boat; A top cone nozzle B is installed at the outlet of the secondary pipeline. An intermediate cone nozzle C is installed between the merging pipe and the secondary pipe; A fish feeder is installed at the outlet of the cone-shaped nozzle; The counterweight anchor is equipped with a pulling rope with a float; The cage components and / or fry boxes are equipped with cameras, temperature sensors and / or pH sensors; A connection is provided between the cage assembly and the cage frame B.

[0017] To achieve an optimal aquaculture system, a marine aquaculture method, the following steps are performed using the aforementioned marine aquaculture system; Step 1: Raising fish fry; Step two: Care for the fish fry; Step 3: Release the large fish; Step four: Perform system maintenance; Step 5: Harvest the fish.

[0018] As a further improvement to the above technical solution: First, the fish fry box is placed in the designated sea area with the help of the pulling rope; then, the counterweight anchor is deployed; and finally, the fish fry are put into the seed fry box through the feeding pipe of the feeding group B. The growth of fish fry inside the fry box is observed through a camera. When the percentage of fish fry larger than the set value in a set unit interval exceeds the set threshold, the telescopic top rod D is activated to raise or lower the net box body D, so that the inner box of the fry box and the mesh of the net box frame B are aligned. Under the action of the ocean current, the fish fry enter the net box frame B. At the same time, fish food is put into the net box frame B through the feeding pipe of the feeding group A to lure the fish fry into the net box frame B. The growth status of the fry in the fry box is observed by the camera. When the number of fry in the set unit interval is less than the set value NB, and the number NB exceeds the set threshold, the feeding pipe of the feed group B is activated to send in high-pressure fresh water or salt water with a concentration higher than that of seawater to drive the fry in the seed fry box. If fresh or salt water is introduced and the set time is reached, the fish fry in the seedling box are considered unhealthy. Then, start the lower telescopic top rod D to lower or raise the lower net cage body D, misalign the inner seed box with the net cage frame B, start the pump station, and send oxygen and fish food into the feed pipe for a set time. Then, start the pump station to reverse the direction and pump water out of the inner seed box through the feed pipe. After that, check the water quality at set intervals and refill with new fish fry. In step two, based on the collected data, nutrients and / or pesticides are periodically added to the seedling trays; Based on the collected data, nutrients and / or chemicals are periodically added into the cage frame B; In step three, inside the net cage frame B, the fish and seawater conditions are observed regularly through a camera, and nutrients and / or medicines are added through the feeding pipe of the net cage frame B. In step four, based on hydrological, weather, and ocean current information, the cage frame B is periodically towed around the ocean to achieve automatic water exchange; In step five, observation is conducted through a camera. When the growth of fish fry inside the net cage frame B is observed through the camera, the percentage of fish fry larger than the set value within a set unit interval is counted. The percentage of fish fry larger than the set value ... Then the lower mesh cage component extends to the perimeter of mesh cage frame B; Activate the telescopic rotating assembly and enter the corresponding mesh hole E on the side wall of the cage; rotate the telescopic rod into the cage assembly and hook it into the cage assembly as one unit; Pull the arm to control the shoulder step, which will drive the top cone nozzle B to extend forward and open the corresponding one-way baffle. The top cone nozzle B will then enter the cage assembly. Open the electric shutter; Fish are fed through bypass pipes A and B, which lure the fish to push open the one-way cone mouth A and enter the cage assembly through the converging pipe and secondary pipe. As the fish crowds in, they can only enter the cage assembly in one direction through the middle cone mouth C and the top cone mouth B; During this period, with the help of cameras, fish were fed through side pipes A and B, or the electric baffle was closed. Fish that could not swim out of the middle cone mouth C were defined as Class II healthy fish, fish that could not swim out of the top cone mouth B were defined as Class II healthy fish, fish that could swim out of the top cone mouth B were defined as Class I healthy fish, and fish that could not enter the one-way cone mouth A were defined as Class III healthy fish. The fish are retrieved from the cage components to achieve classified harvesting. Dead fish will either sink to the bottom of the tank or float on the surface due to ocean currents. Automatic collection is performed via the upper cleaning cage assembly A and / or the lower cleaning cage assembly B; During collection, a rotating drive spiral disc causes dead or diseased fish to enter the storage cavity, while fish that accidentally enter swim out through the central opening.

[0019] In summary, the small net cages are easy to pull and move. The nesting-style fish cages allow for a balanced distribution, with larger fish swimming on the outside and smaller fish on the inside. Multiple net cages can be used to raise various fish species. The small net cages are easy to move, while the smaller fish are less resilient, ensuring rapid replacement and encouraging them to swim and grow. Feeding is done directly and precisely through pipes. Weights allow for fixed positioning during typhoons, and the cages can be submerged to minimize losses if the fish cannot be moved in time. The arrangement of larger net cages on the outside and smaller ones on the inside reduces drag.

[0020] Pressure sensors are used to monitor dead and diseased fish, reducing the spread of fish deaths. This ensures the freshness of meat and the grading of fish.

[0021] The staggered mesh allows for the discharge of fish fry, while the pipes encourage unidirectional swimming, facilitating natural selection. The biomimetic structure prevents injury or fright to the fish. Cleverly placed bait encourages automatic movement, and the telescopic rotating rod allows for easy connection and disassembly, enabling separate rearing and grading.

[0022] It has beneficial effects, as illustrated in the examples.

[0023] This invention is reasonably designed, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the cage assembly of the present invention.

[0025] Figure 2 This is a schematic diagram of the fish delivery pipe assembly A of the present invention.

[0026] Figure 3 This is a schematic diagram of the box frame A structure of the present invention.

[0027] Figure 4 This is a schematic diagram of the ingredient group A structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the delivery pipe of the present invention.

[0029] Figure 6 This is a schematic diagram of the ingredient group A structure of the present invention.

[0030] Figure 7 This is a schematic diagram of the rotating spiral disk structure of the present invention.

[0031] Figure 8 This is a schematic diagram of the unidirectional baffle section of the present invention.

[0032] The components include: 1. Net cage assembly; 2. Fish fry box body; 3. Pulling rope section; 4. Counterweight anchor; 5. Box body component A; 6. Feeding group A; 7. Feeding group B; 8. Fish delivery pipe group A; 9. Hanging assembly A; 10. Box body frame A; 11. Central net cage B; 12. Telescopic rotating assembly; 13. Slot section; 14. Buoyancy assembly; 15. Buoyancy ball B; 16. Feeding pipe fittings; 17. Pulling rope group; 18. Net cage frame B; 19. One-way cone nozzle A; 20. Delivery pipe; 21. Merging pipe; 22. Side pipe A; 23. Secondary pipe; 24. Side pipe B; 25. Top cone nozzle B; 26. Bionic petal; 27. Middle 28. Fish feed assembly; 29. ​​Fish box bottom net assembly C; 30. Fish box top cover assembly C; 31. Seedling inner box; 32. Lower net box body D; 33. Lower telescopic top rod D; 34. Hanging corner C; 35. Net box cover D; 36. Pull rope D; 37. Upper cleaning cage assembly A; 38. Lower cleaning cage assembly B; 39. Cleaning base; 40. Cleaning cover; 41. Central opening; 42. Rotating spiral disc; 43. Storage cavity; 44. Extended side cage wall; 45. Process opening; 46. Snake neck; 47. Shoulder step; 48. Pull arm; 49. One-way baffle; 50. Feeding assembly D; 51. Net box side wall E. Detailed Implementation

[0033] like Figure 1-8 As shown, the marine aquaculture system of this embodiment includes a net cage assembly 1 and a fry box 2 detachably connected to the net cage assembly 1; it realizes classified cultivation. It is generally a rectangular structure.

[0034] Each fish fry box 2 is connected to a corresponding pull rope 3; the number of these ropes can be adjusted according to actual needs. A counterweight anchor 4 is suspended below the net cage assembly 1 and the fish fry box 2. This anchor can be retracted to facilitate the sinking of the fish box to avoid surface hazards or to secure it for aquaculture. Fish fry box 2 includes box component A5; A batching group A6 and / or a batching group B7 are passed through the box component A5; Fish delivery pipe assembly A8 passes through the side wall of the box component A5; A hanging assembly A9 is provided above the housing component A5 for suspending the corresponding pull rope.

[0035] The box component A5 includes a box frame A10; a central mesh box B11 is provided in the inner cavity of the box frame A10; thereby achieving outer support and protection.

[0036] The central mesh cage B11 includes the mesh cage frame B18; A telescopic rotating component 12 is provided on the outer wall of the box frame A10 or the box frame B18; The telescopic rod on the telescopic assembly 12 is equipped with a hook and / or a slot 13. When the telescopic rod enters the mesh cage assembly 1, it hooks onto the mesh cage assembly 1. This enables automatic hook connection or disconnection, and can also be used to assist in gas connection.

[0037] Buoyancy components 14 are connected to the cage frame A10 and / or cage assembly 1 respectively; The buoyancy assembly 14 includes a buoyancy frame connected to the corresponding cage frame A10 and / or cage assembly 1 via a pull rope assembly 17; The buoyancy frame is provided with an inlet of feeding pipe fitting 16 and a lower outlet is provided in the corresponding box frame A10 and / or box assembly 1; A buoyancy ball B15 is installed on the buoyancy frame so that the inlet of the feed pipe fitting 16 floats on the water surface; The feeding unit A6 includes a feeding pipe 16 installed in the net cage frame B18. This facilitates connection of pipelines and material delivery. A one-way conical nozzle A19, larger than the mesh size, and a delivery pipe 20 are installed on the outer wall of the net cage frame B18; this allows for one-way movement of fish, enabling the selection of fish with good vitality.

[0038] The A19 one-way conical nozzle has an electric baffle at the inlet, which can block or open the channel.

[0039] One-way cone nozzle A19 is located at the inlet of the discharge pipe 20; The one-way cone nozzle A19 uses a biomimetic petal 26 that is elastic and resistant to seawater corrosion, and its elasticity is adjusted according to the impact force of fish. The gap between adjacent bionic petals 26 is smaller than the shape of the fish fry, preventing the fish fry from leaving the net cage frame B18. When the adjacent 26 bionic petals open, they are larger than the shape of the fish fry. The force of the 26 bionic petals opening is less than the forward momentum of the fish fry with the set shape. The size of the mesh is adjusted according to the fish species.

[0040] Several outgoing pipes 20 are connected to a confluence pipe 21; a bypass pipe A22 is provided on the confluence pipe 21, a secondary pipe 23 is connected to the confluence pipe 21, a bypass pipe B24 is provided on the secondary pipe 23, and a bidirectional pump is connected to the bypass pipe A22 and the bypass pipe B24 to extract the accumulated fish under negative pressure or pressurize and discharge it. Through clever design, the secondary pipe 23 is designed with a snake neck 46 in its transverse section; a shoulder step 47 is provided at the end of the snake neck 46; thus enabling the discharge of fish with good vitality.

[0041] The shoulder step 47 is connected to a traction arm 48.

[0042] The net cage frame B18 includes a bottom net C29 and a top cover assembly C30 connected as one piece; a seedling inner box 31 is provided in the inner cavity of the net cage frame B18; The seedling inner box 31 includes a lower net box body D32 and a net box cover D35 that are fastened together; A lower telescopic top rod D33 is provided at the bottom of the lower net box body D32, which is used to be inserted and fixed to the mesh on the bottom net C29 of the fish box assembly. A hanging corner part C34 is provided on the wire mesh frame B18 for connecting to the inside of the wire mesh frame A10. A pull rope D36 is provided on the cover D35 of the network box for hanging the cover D35 of the network box. The seedling inner box 31 and the mesh of the net box frame B18 are misaligned, and the gap between the seedling inner box 31 and the net box frame B18 is smaller than the designed shape of the fish fry. The telescopic top rod D33 is raised or lowered to make the inner seed box 31 coincide with the mesh of the net cage frame B18, making it larger than the set shape of the fish fry. This protects and facilitates the release of the fish fry.

[0043] The marine aquaculture system of this embodiment can be used alone or in combination with other embodiments, including a box frame A10 and / or a box frame B18; and an upper cleaning cage assembly A37 with an opening facing downward and / or a lower cleaning cage assembly B38 with an opening facing upward are provided at the corners of the box frame A10 and / or the box frame B18. The upper cleaning cage assembly A37 and the lower cleaning cage assembly B38 have the same structure, thus enabling the automatic collection of dead fish.

[0044] The upper cleaning cage assembly A37 includes a cleaning base 39; A cleaning cover 40 with a lower opening is provided on the cleaning base 39; In the cleaning enclosure 40, a storage cavity 43 with mesh openings is provided at the top; a central opening 41 is provided in the middle to allow live fish to freely enter and exit the storage cavity 43; and a rotating spiral disk 42 is provided at the bottom, which is a tapered spiral plate. An extended side cage wall 44 is provided on one side of the rotating spiral disk 42; The extended side cage wall 44 has a process opening 45 for rotating and feeding in dead fish; A paddle or friction surface is provided on the rotating spiral disk 42 to better deliver the fish.

[0045] A rotary cutter is provided in the storage cavity 43 and / or a pressure sensor is provided on the top surface of the cleaning base 39 to monitor the number of dead or diseased fish.

[0046] The cage component 1 is shaped like a square or a sun, thus achieving a reasonable distribution, with large fish swimming on the outside and small fish swimming in the center of the shortest path.

[0047] The cage assembly 1 includes the cage sidewall E51; A one-way baffle part 49 is provided on the side wall E51 of the cage, and the one-way baffle part 49 corresponds to the top conical nozzle B25; thereby realizing one-way fish delivery. A batching group D50 is provided on the cage assembly 1; The traction rope section 3 is equipped with a traction operation boat; A top cone nozzle B25 is installed at the outlet of secondary pipeline 23. An intermediate cone nozzle C27 is installed between the confluence pipe 21 and the secondary pipe 23; A fish feed component 28 is provided at the outlet of the cone-shaped nozzle; The counterweight anchor 4 is equipped with a pulling rope with a float, thus facilitating anchoring.

[0048] The net cage assembly 1 and / or the fish fry box 2 are equipped with cameras, temperature sensors and / or pH sensors to enable monitoring.

[0049] A connection is provided between the cage assembly 1 and the cage frame B18.

[0050] like Figure 1-8 As a preferred embodiment, the marine aquaculture method of this embodiment performs the following steps using the above-described marine aquaculture system; Step 1: Raising fish fry; Step two: Care for the fish fry; Step 3: Release the large fish; Step four: Perform system maintenance; Step 5: Harvest the fish.

[0051] First, the fish fry box 2 is placed in the designated sea area with the help of the pulling rope 3; the counterweight anchor 4 is deployed; then, the fish fry are put into the seedling inner box 31 through the feeding pipe 16 of the feeding group B7. The growth of fish fry inside the fry box 2 is observed through a camera. When the percentage of fish fry larger than the set value in a set unit interval exceeds the set threshold, the lower telescopic top rod D33 is activated to raise or lower the net box body D32, so that the inner fry box 31 and the mesh of the net box frame B18 are aligned. Under the action of the ocean current, the fish fry enter the net box frame B18. At the same time, fish food is put into the net box frame B18 through the feeding pipe 16 of the feeding group A6 to lure the fish fry into the net box frame B18. The growth status of the fry in the fry box 2 is observed by the camera. When the number of fry in the set unit interval is less than the set value NB, and the number NB exceeds the set threshold, the feeding pipe 16 of the feeding group B7 is activated to send high-pressure fresh water or salt water with a concentration higher than that of seawater to drive the fry in the seedling box 31. When fresh or salt water is introduced and the set time is reached, the fry in the seedling box 31 are deemed unhealthy. Then, activate the lower telescopic top rod D33 to lower or raise the lower net cage body D32, misaligning the seedling inner box 31 with the net cage frame B18 mesh. Start the pump station, and deliver oxygen and fish food through the feeding pipe 16 for a set time. Then, start the pump station to reverse the direction, and pump water through the feeding pipe 16 to extract the fish fry from the seedling inner box 31. Afterward, check the water quality at set intervals and replenish with new fish fry. In step two, based on the collected data, nutrients and / or pesticides are periodically added to the seedling inner box 31; based on the collected data, nutrients and / or pesticides are periodically added to the net cage frame B18. In step three, the fish and seawater conditions are regularly observed through a camera inside the cage frame B18, and nutrients and / or medicines are added through the feeding pipe 16 of the cage frame B18. In step four, based on hydrological, weather, and ocean current information, the cage frame B18 is periodically towed around the ocean to achieve automatic water exchange; In step five, observation is conducted through a camera. When the growth status of fish fry inside the cage frame B18 is observed through the camera, the percentage of fish fry larger than the set value within a set unit interval is counted. The percentage of fish fry larger than the set value ... Then lower the cage assembly 1 to the four sides of the cage frame B18; Start the telescopic rotating assembly 12 and enter the corresponding mesh hole E51 on the side wall of the cage; rotate the telescopic rod into the cage assembly 1 and hook it into the cage assembly 1 to form a whole; The pulling arm 48 controls the shoulder step 47, which drives the top cone nozzle B25 to extend forward and push open the corresponding one-way baffle 49, so that the top cone nozzle B25 enters the cage assembly 1. Open the electric shutter; Fish food is fed through bypass pipes A22 and B24, enticing fish to push open the one-way cone mouth A19 and enter the net cage assembly 1 through the confluence pipe 21 and secondary pipe 23; As the fish crowds in, they can only enter the net cage assembly 1 in one direction through the middle cone nozzle C27 and the top cone nozzle B25; During this period, fish were observed using cameras and supplemented with fish food through side pipes A22 and B24, or by closing the electric baffle. Fish that could not swim out of the middle cone mouth C27 were defined as Class II healthy fish, fish that could not swim out of the top cone mouth B25 were defined as Class II healthy fish, fish that swam out of the top cone mouth B25 were defined as Class I healthy fish, and fish that could not enter the one-way cone mouth A19 were defined as Class III healthy fish. The fish are retrieved from the cage component 1 to achieve classified harvesting. Dead fish will either sink to the bottom of the tank or float on the surface due to ocean currents. Automatic collection is performed via the upper cleaning cage assembly A37 and / or the lower cleaning cage assembly B38; During collection, the rotating drive of the spiral disk 42 causes dead or diseased fish to enter the storage cavity 43, while fish that accidentally enter swim out through the central opening 41.

[0052] The present invention has been described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed in detail.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of the present invention can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All technical contents not described in detail in the present invention are well-known technologies.

Claims

1. A marine aquaculture method, characterized in that: With the help of marine aquaculture systems, A marine aquaculture system, including a net cage assembly (1) and a fry box (2) detachably connected to the net cage assembly (1); The fish fry box (2) is connected to the corresponding pull rope (3); A counterweight anchor (4) is suspended below the net cage assembly (1) and the fry box (2); The fish fry box (2) includes box component A (5); A batching group A (6) and / or a batching group B (7) are inserted through the box component A (5); Fish delivery pipe assembly A(8) passes through the side wall of box component A(5); A hanging assembly A (9) is provided above the box component A (5) for suspending the corresponding pull rope; Box component A(5) includes box frame A(10); a central mesh box B(11) is provided in the inner cavity of box frame A(10); The central mesh cage B(11) includes the mesh cage frame B(18); A telescopic rotating assembly (12) is provided on the outer wall of either the box frame A (10) or the box frame B (18); The telescopic rod on the telescopic rotating assembly (12) is provided with a hook and / or a slot (13) so that when the telescopic rod enters the net cage assembly (1), it hooks with the net cage assembly (1); Buoyancy components (14) are connected to the box frame A (10) and / or the box assembly (1); The buoyancy assembly (14) includes a buoyancy frame connected to the corresponding cage frame A (10) and / or cage assembly (1) via a traction rope assembly (17); The buoyancy frame is provided with an inlet of a feeding pipe fitting (16) and a lower outlet is provided in the corresponding box frame A (10) and / or box assembly (1); A buoyancy ball B (15) is installed on the buoyancy frame so that the inlet of the feeding pipe (16) floats on the water surface; The batching group A (6) includes a feeding pipe (16) installed in the mesh cage frame B (18); A one-way cone nozzle A (19) larger than the mesh size and a delivery pipe (20) are provided on the outer wall of the cage frame B (18); The inlet of the one-way conical nozzle A(19) has an electric baffle; One-way cone nozzle A (19) is located at the inlet of the delivery pipe (20); The one-way conical nozzle A (19) uses a biomimetic petal (26) that is elastic and resistant to seawater corrosion; The gap between adjacent bionic petals (26) is smaller than the shape of the fish fry, preventing the fish fry from leaving the net cage frame B (18); When adjacent bionic petals (26) open, they are larger than the shape of the fish fry, and the opening force of the bionic petals (26) is less than the forward momentum of the fish fry with the set shape. Several outgoing pipes (20) are connected to a confluence pipe (21); a bypass pipe A (22) is provided on the confluence pipe (21), a secondary pipe (23) is connected to the confluence pipe (21), and a bypass pipe B (24) is provided on the secondary pipe (23). Bypass pipes A (22) and B (24) are connected to bidirectional pumps, which are used to extract the accumulated fish under negative pressure or pressurize and discharge them. For the secondary pipe (23), the transverse section of the secondary pipe (23) is a snake neck (46); a shoulder step (47) is provided at the end of the snake neck (46); The shoulder step (47) is connected to a pulling arm (48); The net cage frame B (18) includes a bottom net C (29) and a top cover C (30) of the fish cage assembly connected as one piece; a seedling inner box (31) is provided in the inner cavity of the net cage frame B (18); The seedling inner box (31) includes a lower net box body D (32) and a net box cover D (35) that are fastened together; A lower telescopic top rod D(33) is provided at the bottom of the lower net box body D(32) for inserting and fixing to the mesh on the bottom net C(29) of the fish box assembly; A hanging corner part C (34) is provided on the wire mesh frame B (18) for connecting to the inside of the wire mesh frame A (10); A pull rope D(36) is provided on the cover D(35) of the network box for hanging the cover D(35); The inner box (31) of the seedlings and the mesh of the net box frame B (18) are misaligned and the gap between the inner box (31) of the seedlings and the net box frame B (18) is smaller than the set shape of the fish fry; When the telescopic top rod D(33) is raised or lowered, the seedling inner box (31) and the mesh of the net box frame B(18) are aligned, making the seedling shape larger than the set shape of the fish fry; The method performs the following steps; Step 1: Raising fish fry; Step two: Care for the fish fry; Step 3: Release the large fish; Step four: Perform system maintenance; Step 5: Harvest the fish; In step one, firstly, the fish fry box (2) is placed in the designated sea area by means of the pulling rope (3); the counterweight anchor (4) is deployed; then, the fish fry are deployed into the seedling inner box (31) through the feeding pipe (16) of the feeding group B (7); The growth status of fish fry in the fry box (2) is observed by the camera. When the number of fish fry greater than the set value is NA% within the set unit interval and the number of fish fry greater than the set value exceeds the set threshold, the lower telescopic top rod D (33) is activated to raise or lower the net box D (32) so that the inner box (31) of the seedlings overlaps with the mesh of the net box frame B (18). Under the action of the ocean current, the fish fry enter the net box frame B (18). At the same time, fish food is put into the net box frame B (18) through the feeding pipe (16) of the feeding group A (6) to lure the fish fry into the net box frame B (18). The growth status of the fry in the fry box (2) is observed by the camera. When the number of fry in the set unit interval is less than the set value NB, and the number NB exceeds the set threshold, the feeding pipe (16) of the feeding group B (7) is activated to send in high-pressure fresh water or salt water with a concentration higher than that of seawater to drive the fry in the seedling box (31). When fresh or salt water is introduced and the set time is reached, the fry in the seedling box (31) are deemed unhealthy. Then, start the lower telescopic top rod D (33), lower or raise the lower net cage body D (32), misalign the net cage inner box (31) and the net cage frame B (18) mesh, start the pump station, and send oxygen and fish food into the feed pipe (16) for a set time. Then, start the pump station to reverse the direction, pump water through the feed pipe (16) to extract the fish fry in the seedling inner box (31); after that, at set intervals, check the water quality and refill with new fish fry. In step two, based on the collected data, nutrients and / or medicines are periodically added to the seedling inner box (31); Based on the collected data, nutrients and / or medicines are periodically added to the cage frame B(18); In step three, the fish and seawater conditions are observed regularly through a camera inside the cage frame B (18), and nutrients and / or medicines are added through the feeding pipe (16) of the cage frame B (18). In step four, based on hydrological, weather, and ocean current information, the net cage frame B(18) is periodically towed to patrol the ocean to achieve automatic water exchange; In step five, the growth status of fish fry in the net cage frame B (18) is observed through the camera. When the growth status of fish fry in the net cage frame B (18) is observed through the camera, the number of fish fry greater than the set value is counted within the set unit interval. The number of fish fry greater than the set value is counted as NC%, and the number of fish fry greater than the set value exceeds the set threshold. Then the lower mesh cage component (1) extends to the perimeter of the mesh cage frame B (18); Start the telescopic rotating assembly (12) and enter the corresponding mesh hole of the side wall E (51) of the cage; The rotating telescopic rod enters the cage assembly (1) and is hooked together with the cage assembly (1); Pulling arm (48) controls the shoulder step (47), which drives the top cone nozzle B (25) to extend forward and push open the corresponding one-way baffle (49), and the top cone nozzle B (25) enters the cage assembly (1); Open the electric shutter; Fish food is fed through the bypass pipes A (22) and B (24) to lure the fish to push open the one-way cone mouth A (19) and enter the net cage assembly (1) through the confluence pipe (21) and the secondary pipe (23); As the fish crowds in, they can only enter the cage assembly (1) in one direction through the middle cone mouth C (27) and the top cone mouth B (25); During this period, with the help of a camera, fish food was supplemented through the side pipes A (22) and B (24), or the electric baffle was closed. Fish that could not swim out of the middle cone mouth C (27) were defined as Class II healthy fish, fish that could not swim out of the top cone mouth B (25) were defined as Class II healthy fish, and fish that swam out of the top cone mouth B (25) were defined as Class I healthy fish; fish that could not enter the one-way cone mouth A (19) were defined as Class III healthy fish. The fish are retrieved from the cage assembly (1) to achieve classified harvesting; Dead fish will either sink to the bottom of the tank or float on the surface due to ocean currents. Automatic collection is performed by upper cleaning cage assembly A (37) and / or lower cleaning cage assembly B (38); During collection, the rotating drive rotates the spiral disk (42), causing dead or diseased fish to enter the storage cavity (43), while fish that accidentally enter swim out through the central opening (41).

2. The marine aquaculture method according to claim 1; characterized in that: The system includes a box frame A (10) and / or a box frame B (18); an upper cleaning cage assembly A (37) with an opening facing downward and / or a lower cleaning cage assembly B (38) with an opening facing upward are provided at the corners of the box frame A (10) and / or the box frame B (18). The upper cleaning cage assembly A (37) and the lower cleaning cage assembly B (38) have the same structure; The upper cleaning cage assembly A (37) includes a cleaning base (39); A cleaning cover (40) with an opening at the lower end is provided on the cleaning base (39); In the cleaning enclosure (40), a storage cavity (43) with mesh is provided at the top; a central opening (41) is provided in the middle, allowing live fish to freely enter and exit the storage cavity (43); and a rotating spiral disk (42) is provided at the bottom, the rotating spiral disk (42) being a tapered spiral plate; An extended side cage wall (44) is provided on one side of the rotating spiral disk (42); The extended side cage wall (44) has a process opening (45) for rotating and feeding dead fish; A paddle or friction surface is provided on the rotating spiral disk (42); A rotary cutter is provided in the storage cavity (43) and / or a pressure sensor is provided on the top surface inside the cleaning base (39).

3. The marine aquaculture method according to claim 2, characterized in that: When the cage component (1) is square or rectangular, The cage assembly (1) includes a cage sidewall E (51); A one-way baffle (49) is provided on the side wall E (51) of the cage, and the one-way baffle (49) corresponds to the top cone nozzle B (25); A feeding group D (50) is provided on the cage assembly (1); The traction rope section (3) is equipped with a traction operation boat; A top cone nozzle B (25) is installed at the outlet of the secondary pipe (23). An intermediate cone nozzle C (27) is provided between the confluence pipe (21) and the secondary pipe (23); A fish food component (28) is provided at the outlet of the cone-shaped nozzle; The counterweight anchor (4) is equipped with a pulling rope with a float; The cage assembly (1) and / or fry box (2) are equipped with a camera, a temperature sensor and / or a pH sensor; A connection is provided between the cage assembly (1) and the cage frame B (18).

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