A system and method for culturing a hatchery vessel hold

Abstract

The present application belongs to the technical field of deep-sea aquaculture equipment, and relates to a kind of aquaculture factory ship cabin aquaculture and fishing system and method, comprising: net assembly;Deformable support assembly is located at the top of net assembly, its inside can be filled with medium to realize deformation and be horizontally attached to the inner wall of aquaculture cabin after deformation;Lifting assembly is used to pull the deformable support assembly to make it ascend and descend in the aquaculture cabin;Medium conveying assembly is used to fill the deformable support assembly with medium.The present application is suitable for the cabin aquaculture environment of aquaculture factory ship, and can be applied to fish of different water layers, specifications, types and life habits.No original equipment structure is damaged, and the present application has the characteristics of simple operation and high feasibility in fishing operation.The present application can be widely applied in the industry, thereby providing strong support for the steady development of subsequent intelligent fishery large-scale aquaculture factory ship projects and the mechanization, intelligentization and informatization of modern aquaculture.

Description

Technical Field

[0001] This invention belongs to the field of deep-sea aquaculture equipment technology, and relates to a deep-sea aquaculture vessel equipment and method, specifically to an aquaculture vessel hold-and-harvest system and method. Background Technology

[0002] Deep-sea waters have significant advantages such as abundant fishery resources, high-quality water sources, suitable water temperatures, and freedom from land-based pollution and diseases. They provide excellent conditions for large-scale marine aquaculture and logistics processing and supply, and represent a new space for the development of modern aquaculture and the marine economy.

[0003] Aquaculture vessels are one of the core pieces of equipment for developing deep-sea aquaculture projects. They can reach deep-sea areas inaccessible to ordinary aquaculture cages, possessing significant economic and social value. The applicant currently operates the world's first 100,000-ton fully enclosed, cruiseable large-scale aquaculture vessel, which is currently the world's largest, most functional, practical, and reliable deep-sea aquaculture equipment. The vessel contains several large aquaculture tanks, shaped like wide-mouthed bottles with an octagonal cross-section. These tanks exchange water with external seawater via circulating pumps. Each tank can reach a depth of 15 meters and can raise over 100 tons of adult fish. Using aquaculture vessels for fish farming can significantly increase fish yields.

[0004] Due to the large total weight of fish in a single tank, harvesting adult fish is a crucial task in aquaculture operations. There are two main methods for harvesting fish on existing aquaculture vessels. One method involves using large-scale purse seines to gather and harvest the fish. However, because these purse seines are enormous, with a depth almost equal to the water level in the tank, even with the aid of cranes, a large number of personnel are required, including divers to assist underwater in supporting the net, making the labor intensity too high. The second method involves divers spreading a fishing net with a cross-sectional area roughly equivalent to that inside the tank on the surface, then lowering the net to push the fish down to the vicinity of the bottom fish-suction pump. This method cannot guarantee the personal safety of the divers.

[0005] Patent CN116195557A describes a fish-gathering and catching device and method for aquaculture holds on an aquaculture vessel, comprising a fish-gathering net, a bottom lifting device, and an upper lifting device. The fish-gathering net includes a fishing net and a counterweight ring connected to the bottom of the net. The bottom lifting device includes a steel wire rope passing through the counterweight ring, which is pulled and lifted by a steel wire rope winch fixed to the upper bulkhead of the platform. The upper lifting device includes a ground anchor fixed near a corner of the aquaculture hold wall, a pulley system on the ground anchor, an eyelet fixed to the upper bulkhead of the platform, a net-pulling winch located on the upper bulkhead of the platform and close to the fish suction interface, a net-laying rope and a net-pulling rope, one end of which are attached to the same position at the top of the fishing net. The other end of the net-laying rope passes through the pulley system and the eyelet in sequence and is operated by an operator. The other end of the net-pulling rope passes through the eyelet and is pulled by the net-pulling winch. This patent has fewer connection points on the aquaculture hold wall, a simpler process, and uses a shorter fish suction pipe with less pipe loss. However, the patented technical solution has several insurmountable drawbacks in practical application. First, the fish-gathering net is too large, with its height almost matching the depth of the aquaculture tank. Whether installed manually or mechanically, it is labor-intensive and occupies a large storage space when not in use. Second, it requires upgrading existing aquaculture tanks, necessitating the installation of components such as ground anchors, pulley systems, and eye rings on the inner walls. This places higher demands on the corrosion and leakage prevention of the tank walls, which is difficult to meet with current technology. Third, due to its design and installation method, divers are required to tie one end of the net-laying rope and the net-pulling rope to the fishing net, pass the net-laying rope through the pulley, and then hand the net-laying and net-pulling ropes to the operators on the platform. This operation is cumbersome and labor-intensive. Fourth, shellfish tend to grow near the ground anchors, requiring divers to clean them regularly. Summary of the Invention

[0006] To address the shortcomings of the existing technologies, this invention provides a system and method for harvesting aquaculture vessels in their holding tanks. This system is suitable for the holding environment of aquaculture vessels, does not damage the original equipment structure, and features simple harvesting operation and high feasibility.

[0007] The present invention provides a system for raising and harvesting aquaculture vessels, comprising:

[0008] Mesh garment components;

[0009] The deformable support component is located on top of the mesh component. It can be filled with a medium to achieve deformation and then horizontally fits the inner wall of the aquaculture tank after deformation.

[0010] Lifting components are used to pull the deformable support components up and down within the aquaculture chamber;

[0011] A media delivery assembly for filling a deformable support assembly with a medium.

[0012] This invention employs two design schemes to achieve its purpose, mainly in the type of netting component: one is a perimeter net, and the other is a lifting net.

[0013] As a preferred embodiment, the netting assembly is a enclosure net, comprising a net, several counterweight rings at the bottom of the net, and a retrieval wire rope running through all the counterweight rings. The retrieval wire rope is connected to a marine crane. The height of the net is 1 / 5 to 1 / 2 of the water level in the aquaculture tank. The deformable support assembly can be filled with gas. The aquaculture vessel is equipped with oxygen and nitrogen supply equipment, and the medium delivery assembly can be connected to the corresponding gas supply equipment. Therefore, the gas can be air, oxygen, or nitrogen, without limitation.

[0014] As a preferred embodiment, the netting assembly is a lifting net, comprising a net and several sinkers at the bottom of the net. The height of the net is 1 / 5 to 1 / 2 of the water level in the aquaculture tank. The deformable support assembly can be filled with either gas or water. The choice of gas is the same as described above. Water can be either anti-dampening water or seawater from the tank, without limitation.

[0015] As a preferred embodiment, the deformable support assembly includes an annular deformable bladder. A corner support sleeve is fitted onto the annular deformable bladder corresponding to a corner of the inner wall of the aquaculture chamber. The annular deformable bladder has an interface for connection to the media delivery assembly. The corner support sleeve ensures that the annular deformable bladder, after being filled with media, has the same shape as the octagonal aquaculture chamber and fits snugly against it. Connecting rings are provided at the top of the corner support sleeves located at at least four corner positions, and these connecting rings are connected to the lifting assembly via traction ropes. Furthermore, considering the balance of forces, connecting rings can be provided at the top of the corner support sleeves at the corresponding four, six, or all corner positions. In practical implementation, connecting rings can also be omitted, and the traction rope can be directly tied to the top of the corner support sleeve, the annular deformable bladder, or the netting. However, these methods are less stable than the connecting ring solution, and the applicant does not impose any restrictions on this.

[0016] As a preferred embodiment, the material of the annular deformable capsule is butyl rubber, natural latex rubber, or thermoplastic polyurethane.

[0017] As a preferred embodiment, the lifting assembly includes several mobile hydraulic cranes located on the top deck and distributed at the aquaculture hatch openings, each mobile hydraulic crane being connected to a deformable support assembly via a traction rope. Further, the lifting assembly includes four mobile hydraulic cranes located on the top deck and distributed at the four corners of the aquaculture hatch openings, with connecting rings provided at the top of the corner support sleeves at the corresponding four corner positions, each mobile hydraulic crane being connected to the corresponding connecting ring via a traction rope.

[0018] As a preferred embodiment, the media delivery assembly includes a pump and a delivery hose connected to the pump. The other end of the delivery hose is connected to a deformable support assembly, and further, to an interface on the annular deformable bladder. Depending on actual usage requirements, the pump is connected to the ship's air supply and water supply equipment.

[0019] When the netting component of the aquaculture vessel's hold-based harvesting system is a seine net, the harvesting method using this system shall be carried out according to the following steps:

[0020] (1) The netting assembly and the deformable support assembly are located on the top deck of the aquaculture vessel, and the media conveying assembly is located on the walkway inside the aquaculture cabin of the aquaculture vessel. The media conveying assembly is connected to the deformable support assembly. At this time, the media conveying assembly is not working. The lifting assembly is connected to the deformable support assembly for traction. The net-collecting wire rope is connected to the ship's crane.

[0021] (2) Deploy the netting assembly and the deformable support assembly from the aquaculture hatch opening into the aquaculture tank. Control the deformable support assembly to be positioned at the water surface by lifting the assembly. Start the media delivery assembly to fill the deformable support assembly with gas. The deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank. Then close the media delivery assembly to stop filling the deformable support assembly with gas.

[0022] (3) Gather the fish into the area of ​​the net, and the net-hauling wire rope begins to be pulled in by the ship's crane. The fish in the aquaculture tank are gathered in the net, and the fish suction device is activated to extract them.

[0023] When the netting component of the aquaculture vessel's hold-up harvesting system uses a lifting net, the harvesting method of this aquaculture vessel's hold-up harvesting system shall be carried out according to the following steps:

[0024] (1) The netting assembly and the deformable support assembly are located on the top deck of the aquaculture vessel, and the media conveying assembly is located on the walkway inside the aquaculture cabin of the aquaculture vessel. The media conveying assembly is connected to the deformable support assembly. At this time, the media conveying assembly is not working, and the lifting assembly is connected to the deformable support assembly by traction.

[0025] (2) Drop the netting assembly and the deformable support assembly into the aquaculture chamber from the aquaculture hatch opening. Control the deformable support assembly to be at the bottom of the water by lifting the assembly. Start the media delivery assembly to fill the deformable support assembly with water or gas. The deformable support assembly gradually expands to fit horizontally against the inner wall of the aquaculture chamber. Then turn off the media delivery assembly to stop filling the deformable support assembly with water or gas.

[0026] (3) The deformable support component is lifted upward under the action of the lifting component. During the lifting process, the fish in the aquaculture tank are gathered within the range of the net until they are lifted to the water surface position, and the fish suction device is activated to extract them.

[0027] The advantages of this invention are:

[0028] (1) It has a deformable support component, which can be deformed by filling with a medium and then horizontally attached to the inner wall of the aquaculture tank after deformation, thereby driving the net component to support the net underwater. There is no need to arrange divers to work underwater, which greatly reduces labor; at the same time, it can achieve the harvesting of the entire tank.

[0029] (2) The netting assembly uses miniaturized fishing nets, with an overall height of only 1 / 5 to 1 / 2 of the height of the aquaculture tank. Compared with traditional large-scale fishing nets, it is lightweight and occupies less space, which greatly reduces the requirements for hoisting operations and manual operations, and reduces labor intensity.

[0030] (3) The lifting components are used to control the lifting of the deformable support components. Several mobile hydraulic cranes are connected to the deformable support components by traction ropes. Under the balance of forces, it can be ensured that the deformable support components can directly fit into the inner wall of the breeding tank after expansion without the need for additional position adjustment.

[0031] (4) The system is suitable for the aquaculture tank environment of aquaculture vessels. It is applicable to fish of different water layers, sizes, types and living habits. It can be promoted and applied in the industry, thus providing strong support for the steady development of subsequent smart fishery large-scale aquaculture vessel projects and the mechanization, intelligence and informatization of modern aquaculture. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the mesh assembly and deformable support assembly in Example 1;

[0034] Figure 2 for Figure 1 Schematic diagram of the deformable support component;

[0035] Figure 3 for Figure 2 An enlarged structural diagram of the corner support sleeve in the diagram;

[0036] Figure 4 This is a schematic diagram of the usage status of the aquaculture vessel's holding and harvesting system in Example 1. Figure 1 ;

[0037] Figure 5This is a schematic diagram of the usage status of the aquaculture vessel's holding and harvesting system in Example 1. Figure 2 ;

[0038] Figure 6 This is a schematic diagram of the usage status of the aquaculture vessel's holding and harvesting system in Example 1. Figure 3 ;

[0039] Figure 7 This is a schematic diagram of the structure of the mesh assembly and the deformable support assembly in Example 2;

[0040] Figure 8 This is a schematic diagram of the usage status of the aquaculture vessel's holding and harvesting system in Example 2. Figure 1 ;

[0041] Figure 9 This is a schematic diagram of the usage status of the aquaculture vessel's holding and harvesting system in Example 2. Figure 2 ;

[0042] In the diagram: 1. Netting; 2. Counterweight ring; 3. Net-hauling wire rope; 4. Circular deformable bladder; 5. Corner support sleeve; 6. Connecting ring; 7. Interface; 8. Traction rope; 9. Sink; 10. Top deck; 11. Mobile hydraulic crane; 12. Pump; 13. Delivery hose; 14. Walkway; 15. Marine crane; 16. Aquaculture tank; 17. Aquaculture hatch opening. Detailed Implementation

[0043] 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 the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Example 1:

[0047] like Figures 1-6 As shown, a system for raising and harvesting aquaculture vessels includes:

[0048] The netting assembly is a enclosure net, including a netting 1, several counterweight rings 2 set at the bottom of the netting 1, and a net-taking wire rope 3 passing through all the counterweight rings 2. The net-taking wire rope 3 is connected to a marine crane 15. The height of the netting 1 is 1 / 3 of the height of the aquaculture water in the aquaculture tank 16.

[0049] The deformable support component is located on top of the mesh 1. In one embodiment, the deformable support component is wrapped by the top mesh 1. This method can avoid secondary processing on the deformable support component to hang the mesh 1.

[0050] In one embodiment, the deformable support component includes an annular deformable bladder 4, which is made of butyl rubber, natural latex rubber or thermoplastic polyurethane. In this embodiment, thermoplastic polyurethane can be selected.

[0051] In one implementation, corner support sleeves 5 are fitted onto the annular deformable capsule 4 corresponding to the corner of the inner wall of the breeding chamber 16. Since the internal cross-section of the breeding chamber 16 is octagonal, a total of eight corner support sleeves 5 are provided. The corner support sleeves 5 ensure that the annular deformable capsule 4, after being filled with gas, has the same shape as the octagonal breeding chamber 16 and fits snugly against it.

[0052] As one implementation method, Figure 1 The top of the four corner support sleeves 5 located in the middle part is provided with connecting rings 6, which are connected to the four mobile hydraulic cranes 11 of the lifting assembly by traction ropes 8.

[0053] In one embodiment, the annular deformable bladder 4 is provided with an interface 7 connected to the delivery hose 13 of the media delivery assembly. Since this embodiment uses a net enclosure, the medium that can be filled into the annular deformable bladder 4 is gas, depending on actual usage needs. The aquaculture vessel is equipped with oxygen, nitrogen, and other gas supply equipment. The media delivery assembly can be connected to the corresponding gas supply equipment or directly connected to the outside air. Therefore, the gas can be air, oxygen, or nitrogen, without limitation. The deformable support assembly is filled with gas to achieve deformation, and after deformation, it horizontally conforms to the inner wall of the aquaculture tank 16.

[0054] The lifting assembly, used to pull the deformable support assembly to raise and lower it within the aquaculture tank 16, includes four mobile hydraulic cranes 11 located on the top deck 10 and distributed at the four corners of the aquaculture hatch opening 17. Each mobile hydraulic crane 11 is connected to a corresponding connecting ring 6 by a towing rope 8.

[0055] The media delivery assembly includes a pump 12 and a delivery hose 13 communicating with the pump 12, the other end of which is connected to an interface 7 on an annular deformable bladder 4. The pump 12 can be mounted on a platform 14 within the aquaculture chamber 16.

[0056] In this embodiment, the netting component is a enclosure net, and the aquaculture vessel's hold-and-harvest system is used for harvesting. When the harvested fish are surface-dwelling fish, the water level is at a normal level, and the following steps are followed:

[0057] (1) The netting assembly and the deformable support assembly are located on the top deck 10 of the aquaculture vessel, and the media conveying assembly is located on the walkway 14 inside the aquaculture tank 16 of the aquaculture vessel. The pump 12 is an air compressor pump. The conveying hose 13 is connected to the interface 7 on the annular deformable bladder 4. At this time, the pump is not working. The four mobile hydraulic cranes 11 are respectively connected to the four connecting rings 6 one by one through the traction rope 8. The net-collecting wire rope 3 is connected to the ship crane 15.

[0058] (2) The netting assembly and deformable support assembly are lowered from the aquaculture hatch 17 into the aquaculture tank 16. The deformable support assembly is positioned at the water surface by using the lifting assembly. Pump 12 is started to inflate the annular deformable bladder 4 with air. With the traction of four mobile hydraulic cranes 11, the deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank 16. Then, pump 12 is turned off. At this time, the aquaculture tank 16 is in a state of... Figure 4 The state.

[0059] (3) Using methods such as sound, light, and feeding to attract fish, the fish are gathered within the area of ​​the net 1. The net-hauling wire rope 3 begins to be pulled in by the ship's crane 15, and the fish in the aquaculture tank 16 are gathered inside the net 1. At this time, the fish are in a state of... Figure 5 The state of the net. Additionally, by selecting a net 1 with a suitable mesh size, smaller fish can be filtered out of the net 1, allowing for graded harvesting. Finally, the suction pipe of the fish suction device, i.e., the fish suction pump, is inserted into the net 1 to suction the fish out of the hold.

[0060] When catching bottom-dwelling or mid-water fish, it is recommended to lower the water level first to reduce the difficulty of attracting fish later. Follow these steps:

[0061] (1) The netting assembly and the deformable support assembly are located on the top deck 10 of the aquaculture vessel, the media conveying assembly is located on the walkway 14 inside the aquaculture tank 16 of the aquaculture vessel, the pump 12 is an air compressor pump, the conveying hose 13 is connected to the interface 7 on the annular deformable bladder 4, the pump 12 is not working, the four mobile hydraulic cranes 11 are respectively connected to the four connecting rings 6 one by one through the traction rope 8, and the net-collecting wire rope 3 is connected to the ship crane 15.

[0062] (2) The netting assembly and deformable support assembly are lowered from the aquaculture hatch 17 into the aquaculture tank 16. The deformable support assembly is positioned at the water surface by using the lifting assembly. Pump 12 is started to inflate the annular deformable bladder 4 with air. With the traction of four mobile hydraulic cranes 11, the deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank 16. Then, pump 12 is turned off. At this time, the aquaculture tank 16 is in a state of... Figure 6 The state.

[0063] (3) Using methods such as sound, light, and feeding to attract fish, the fish are gathered within the area of ​​the net 1. The net-hauling wire rope 3 begins to be pulled in by the ship's crane 15, and the fish in the aquaculture tank 16 are gathered inside the net 1. At this time, the circulation pump of the aquaculture tank 16 is started to inject water into the aquaculture tank 16 to raise the water level to the normal level. At the same time, the lifting component drives the deformable support component and the net component to rise synchronously, finally reaching the normal level. Figure 5 Finally, the fish suction pipe of the fish suction device, i.e., the fish suction pump, is inserted into the net 1 to suction the fish out of the tank.

[0064] Example 2:

[0065] like Figure 7 As shown, a system for raising and harvesting aquaculture vessels includes:

[0066] The netting assembly is a lifting net, comprising a netting 1 and several sinkers 9 disposed at the bottom of the netting 1. The height of the netting 1 is 1 / 4 of the height of the aquaculture water in the aquaculture tank 16.

[0067] The deformable support assembly can be filled with either gas or water. Considering the water pressure at the bottom of the aquaculture tank 16, water is chosen as the medium in this example for safety reasons. Water can be pumped out to remove protective water or seawater from the tank; there are no restrictions.

[0068] The rest is the same as in Example 1.

[0069] In this embodiment, the netting assembly uses a lifting net, and the aquaculture vessel's hold-up and harvesting system is used for harvesting. It is not necessary to distinguish the fish's living habits or swimming location. At this time, the water level is at a normal level. The following steps are then performed:

[0070] (1) The netting assembly and the deformable support assembly are located on the top deck 10 of the aquaculture vessel, and the media conveying assembly is located on the walkway 14 inside the aquaculture tank 16 of the aquaculture vessel. The pump 12 is a water pump and is connected to the fire-fighting water supply equipment on the ship. The conveying hose 13 is connected to the interface 7 on the annular deformable bladder 4. At this time, the pump 12 is not working. The four mobile hydraulic cranes 11 are respectively connected to the four connecting rings 6 one by one through the traction rope 8.

[0071] (2) The netting assembly and deformable support assembly are lowered from the aquaculture hatch 17 into the aquaculture tank 16. The deformable support assembly is positioned at the bottom of the water by using the lifting assembly. Pump 12 is started and water is pumped into the annular deformable bladder 4. With the traction of four mobile hydraulic cranes 11, the deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank 16. Then pump 12 is turned off. At this time, the aquaculture tank 16 is in a state of... Figure 8 The state.

[0072] (3) After standing still for a period of time, the lifting component drives the deformable support component and the netting component to slowly rise. During the lifting process, the fish in the aquaculture tank 16 are gathered within the area of ​​the netting 1 until they are raised to the water surface. At this time, the fish are in the aquaculture tank 16. Figure 9 The state of the net. Additionally, by selecting a net 1 with a suitable mesh size, smaller fish can be filtered out of the net 1, allowing for graded harvesting. Finally, the suction pipe of the fish suction device, i.e., the fish suction pump, is inserted into the net 1 to suction the fish out of the hold.

[0073] The above is a detailed description of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A method for harvesting from a fish farming vessel holding system, characterized in that, The aquaculture vessel's holding system for raising and harvesting fish is characterized by comprising: Mesh garment components; A deformable support assembly is located on top of the mesh assembly. It can be filled with a medium to achieve deformation and then horizontally conforms to the inner wall of the aquaculture chamber. The deformable support assembly includes an annular deformable bladder. Corner support sleeves are fitted onto the annular deformable bladder corresponding to the corner positions of the inner wall of the aquaculture chamber. The annular deformable bladder has an interface for connecting to the medium delivery assembly. Connecting rings are provided at the top of the corner support sleeves located at at least four corner positions. These connecting rings are connected to the lifting assembly via traction ropes. A lifting assembly is used to pull the deformable support assembly to move it up and down within the aquaculture tank; the lifting assembly includes several mobile hydraulic cranes located on the top deck and distributed at the aquaculture tank openings, each mobile hydraulic crane being connected to the deformable support assembly via a traction rope; A media delivery assembly for filling a deformable support assembly with a media. The netting assembly is a enclosure net, which includes a net, several counterweight rings at the bottom of the net, and a hauling wire rope passing through all the counterweight rings. The hauling wire rope is connected to a marine crane. The height of the net is 1 / 5 to 1 / 2 of the height of the aquaculture tank water. The deformable support assembly can be filled with gas. When the fish being caught are surface-dwelling fish, and the water level is at a normal level, proceed with the following steps: (1) The netting assembly and the deformable support assembly are located on the top deck of the aquaculture vessel, and the media conveying assembly is located on the walkway inside the aquaculture cabin of the aquaculture vessel. The media conveying assembly is connected to the deformable support assembly. At this time, the media conveying assembly is not working. The lifting assembly is connected to the deformable support assembly for traction. The net-collecting wire rope is connected to the ship's crane. (2) Drop the netting assembly and the deformable support assembly into the aquaculture tank from the aquaculture hatch opening. Control the deformable support assembly to be positioned at the water surface by lifting the assembly. Start the media delivery assembly to fill the deformable support assembly with gas. The deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank. Then turn off the media delivery assembly to stop filling the deformable support assembly with gas. (3) Use sound, light or feeding to gather fish into the area of ​​the net. The net wire rope begins to be pulled in by the ship crane. The fish in the breeding tank are gathered in the net. The fish suction device is started to extract them. When the fish to be caught are bottom-dwelling or mid-water fish, first lower the water level in the rearing tank to reduce the difficulty of attracting fish later, and then proceed with the following steps: (1) The netting assembly and the deformable support assembly are located on the top deck of the aquaculture vessel, and the media conveying assembly is located on the walkway inside the aquaculture cabin of the aquaculture vessel. The media conveying assembly is connected to the deformable support assembly. At this time, the media conveying assembly is not working. The lifting assembly is connected to the deformable support assembly for traction. The net-collecting wire rope is connected to the ship's crane. (2) Drop the netting assembly and the deformable support assembly into the aquaculture tank from the aquaculture hatch opening. Control the deformable support assembly to be positioned at the water surface by lifting the assembly. Start the media delivery assembly to fill the deformable support assembly with gas. The deformable support assembly gradually expands until it is horizontally attached to the inner wall of the aquaculture tank. Then turn off the media delivery assembly to stop filling the deformable support assembly with gas. (3) Use sound, light or feeding to gather fish into the area of ​​the net. The net wire rope begins to be pulled in by the ship crane. The fish in the breeding tank are gathered in the net. At this time, the water level in the breeding tank is raised to the normal water level. At the same time, the lifting component drives the deformable support component and the net component to rise synchronously. Finally, the fish suction device is started to extract the fish.

2. The harvesting method of the aquaculture vessel holding system according to claim 1, characterized in that: The annular deformable capsule is made of butyl rubber, natural latex rubber, or thermoplastic polyurethane.

3. The harvesting method of the aquaculture vessel holding system according to claim 1, characterized in that: The media delivery assembly includes a pump and a delivery hose connected to the pump.

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