Transportation and temporary rearing integrated device for land-sea relay rearing of pampus argenteus parent fishes

Abstract

The invention belongs to the field of aquaculture equipment, and provides a transportation and temporary culture integrated device for land-sea relay culture of pampus argenteus parent fishes. The device comprises a transportation assembly and a buoy, the transportation assembly comprises a culture cabin and a water circulation cabin which are communicated through a pipeline, and a temperature adjusting and filtering unit is arranged in the water circulation cabin. The device integrates the functions of transportation and temporary rearing, water quality and water temperature can be automatically maintained through an internal water circulation system, stable releasing can be achieved, and stress and damage to the parent pomfret in the land and sea transferring process are effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture equipment, specifically relating to an integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock. Background Technology

[0002] As a marine fish with high economic value, the artificial breeding and cultivation of silver pomfret is an important research direction in the aquaculture field. In the "land-sea relay" aquaculture model, silver pomfret broodstock cultivated on land need to be transported to sea cages or aquaculture areas for further cultivation. However, silver pomfret broodstock have delicate bodies and strong stress responses, and have extremely high requirements for water quality and temperature in the transportation and temporary holding environments.

[0003] Currently, traditional live fish transportation and temporary holding at sea are usually two separate processes. Transportation often uses live-water trucks or oxygenated containers. Upon arrival at the destination, the broodstock fish need to be removed from the transport vehicle and transferred to temporary holding cages at sea. This process has significant drawbacks: First, repeated catching and transfer inevitably cause physical damage to the fish (such as scale loss and abrasions) and severe physiological stress, seriously affecting the subsequent health and reproductive capacity of the broodstock fish. Second, during transportation, especially in a closed environment where water cannot be changed, water quality (such as dissolved oxygen, ammonia nitrogen, and pH) deteriorates easily, and water temperature is difficult to control stably, directly threatening the survival of the broodstock fish. Finally, at the time of release, the difference between the breeding environment and the external marine environment (water temperature, pH, etc.) may cause the broodstock fish to suffer from sudden environmental stress, reducing the survival rate after release.

[0004] While some existing technologies exist for live fish transportation or temporary holding, they are often single-function and fail to effectively integrate transportation, water quality maintenance, environmental control, and stable release. This makes it difficult to meet the specific needs of highly sensitive fish species like silver pomfret in land-sea relay aquaculture. Therefore, there is an urgent need for a specialized device that integrates live water transportation, temporary holding, and stable release, and can automatically maintain a stable and suitable aquatic environment. Summary of the Invention

[0005] The purpose of this patent is to provide an integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock. Through internal closed-loop water circulation and automatic environmental control, it avoids secondary harvesting and sudden environmental changes of silver pomfret broodstock, thereby minimizing stress and damage to them during the land-sea relay aquaculture process.

[0006] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret parent fish includes a transport component and a buoy. The buoy covers the side of the transport component. The transport component includes an aquaculture tank and a water circulation tank. The aquaculture tank and the water circulation tank achieve water circulation through a first pipeline and a second pipeline. The water circulation chamber is divided into a conditioning chamber and a filtration chamber by a partition. Heating elements are installed in the conditioning chamber, and a water pump is mounted on the partition to control the connection or separation between the conditioning chamber and the filtration chamber. Water pumps are installed in both the first and second pipelines. The second pipeline has a T-junction structure with valves at each port. The aquaculture tank has a cylindrical, arc-shaped structure with a smooth interior without any dead corners, protecting the fish from scratches.

[0007] This device integrates transportation and temporary holding functions into a single unit. Using transport components and buoyancy-providing floats, it can be directly used for transporting live fish, which are then released into the aquaculture area. This avoids secondary harvesting and transfer of broodstock between transportation and temporary holding, significantly reducing operational steps and stress on the fish. Internally, the device forms a closed-loop internal circulation system through a rearing chamber and a water circulation chamber, connected by first and second pipelines. This design ensures continuous treatment and renewal of the water within the chamber even when water cannot be changed during transport. This is crucial for maintaining stable water quality during transport, providing a survival guarantee for the high-value silver pomfret broodstock. The water circulation chamber is divided into a temperature regulation chamber and a filtration chamber, with heating elements installed in the temperature regulation chamber, enabling active temperature control. Regardless of changes in external ambient temperature during transport, the system maintains the water temperature within the optimal range for silver pomfret growth, meeting their stringent temperature requirements. The second pipeline uses a T-junction structure with valves at each port, combined with a water pump, giving the system great operational flexibility. Operators can choose to pump water from the conditioning chamber, the filtration chamber, or a mixture of both into the aquaculture tank as needed, and can also control the direction of water flow. This facilitates water exchange of varying intensities and qualities, adapting to the needs of different stages such as transportation and temporary holding, or enabling targeted treatment of specific water bodies.

[0008] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock comprises a filtration chamber including an interception zone and a purification zone, separated by a filter screen. The aquaculture chamber is equipped with a multi-parameter water quality sensor to detect temperature, salinity, dissolved oxygen, pH, and turbidity. The purification zone is filled with several activated carbon packets. The interception zone uses the filter screen to perform preliminary filtration of the water flowing into the aquaculture chamber, effectively intercepting larger particles such as fish excrement and residual feed, preventing these organic matter from circulating and decomposing within the system, thus reducing the burden on subsequent fine purification and avoiding rapid clogging of the filtration system. The activated carbon packets in the purification zone provide highly efficient adsorption. They remove dissolved pollutants that the filter screen cannot handle, such as tiny impurities, pigments, drug residues, odors, and toxic substances. The multi-parameter water quality sensor in the aquaculture chamber can monitor key water quality indicators such as temperature, salinity, dissolved oxygen, pH, and turbidity in real time and continuously. This provides data support for the entire system, enabling the device to intelligently judge and automatically switch different water circulation modes or adjust the working status of auxiliary equipment (such as heating, oxygenation, and pH adjustment tanks) based on real-time water quality conditions, thereby achieving precise control of the water environment and providing the best living conditions for silver pomfret broodstock.

[0009] An integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock also includes a control system. The control system is connected to a first multi-parameter water quality sensor and is configured to control the valve inside the second pipeline when the pH value detected by the first multi-parameter water quality sensor is not within the appropriate pH threshold or the turbidity is higher than the turbidity safety threshold, so that the water flow preferentially flows through the filter chamber to execute the filtered water circulation path. When the pH value detected by the first multi-parameter water quality sensor is within the appropriate pH threshold and the turbidity is below the safe turbidity threshold, the internal valve of the second pipeline is controlled to circulate water between the breeding tank and the temperature regulation tank, alternately executing forward and reverse flow water circulation paths. This decision logic ensures that water purification and removal of harmful substances are the top priorities under any circumstances, providing basic life protection for the parent fish and effectively preventing fish stress or death caused by sudden deterioration of water quality. When the water quality parameters improve, the system automatically switches to a mode that alternates between forward and reverse flow water circulation. This avoids the continuous ineffective operation of filters (especially activated carbon) when the water quality is good, saving energy and extending the life of the filter media. At the same time, the alternating flow direction in the water circulation better simulates the complex water flow environment in natural waters, preventing fish from losing their physical condition due to long-term adaptation to a single flow direction, helping to maintain their vitality and health, meeting their physiological needs, and also promoting uniform mixing of dissolved oxygen in the breeding tank.

[0010] An integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock is provided. The bottom of the outer wall of the water circulation chamber is equipped with a No. 2 multi-parameter water quality sensor for detecting seawater temperature, salinity, dissolved oxygen, and pH value. A pH adjustment box is fixed on the outer wall of the water circulation chamber. The outlet of the pH adjustment box is connected to the inside of the water circulation chamber. The pH adjustment box contains sodium bicarbonate.

[0011] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock includes a control system. The control system is connected to a second multi-parameter water quality sensor, a heating element in the culture chamber, and a pH adjustment tank. When the integrated device floats on the sea surface, it adjusts the heating temperature of the heating element and the amount of sodium bicarbonate added to the pH adjustment tank based on the pH value and seawater temperature measured by the second multi-parameter water quality sensor. Ultimately, this ensures that the heating temperature of the heating element and the seawater temperature, as well as the pH value in the culture chamber and the seawater pH value, are within set thresholds. Sodium bicarbonate, as a safe buffer, effectively neutralizes these acidic substances, stabilizing the pH within a suitable range for the silver pomfret broodstock and preventing osmotic stress and physiological disorders caused by drastic pH fluctuations. The pH adjustment tank, by precisely adding sodium bicarbonate to the circulation system, effectively buffers water acidification caused by fish respiration and metabolism, stabilizing the pH value in the culture chamber within the preset optimal range, thereby avoiding osmotic stress and physiological disorders in the broodstock due to pH fluctuations. Before the integrated device is anchored on the sea surface and the silver pomfret broodstock are released into the ocean, the control system can actively adjust the temperature of the heating elements and the amount of sodium bicarbonate added, so that key environmental parameters such as water temperature and pH value in the culture tank gradually become similar to those of the external seawater. This smooth transition mechanism can minimize sudden environmental changes during release and effectively prevent the broodstock from being stressed by drastic environmental changes.

[0012] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock has been developed. An oxygen tank is fixed to the outer wall of the aquaculture chamber, connected to several microporous oxygenation pipes that supply oxygen into the chamber. During live fish transport and temporary holding, the fish are highly concentrated in a relatively small space, and their respiration continuously consumes dissolved oxygen in the water. Without external oxygen replenishment, dissolved oxygen levels drop rapidly, leading to hypoxia, stress, and even mass mortality. The oxygen tank and microporous oxygenation pipes directly and actively replenish pure oxygen to the water, which is the most effective way to address this core challenge. As a high-value marine fish, silver pomfret typically requires higher dissolved oxygen levels than ordinary fish. Sufficient oxygen is essential for maintaining normal metabolism and reducing stress responses. This system ensures that dissolved oxygen levels within the chamber remain above a safe threshold at all times (especially during closed transport where water cannot be changed). The microporous oxygenation pipes generate a large number of fine, uniform bubbles. Compared to large bubbles, small bubbles have a larger specific surface area, allowing oxygen to dissolve more fully and quickly into the water. This significantly improves oxygen transfer efficiency and reduces oxygen waste. When the system operates in either forward or reverse flow water circulation paths, oxygen can be evenly mixed within the aquaculture chamber. The oxygen tank can also be controlled by the control system. When the multi-parameter water quality sensor detects that the dissolved oxygen level in the aquaculture chamber is below the set value, the control system can automatically open or increase the oxygen supply from the oxygen tank, achieving on-demand oxygenation and precise regulation. This ensures the fish's needs are met while optimizing energy consumption.

[0013] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock has been developed. The aquaculture chamber has an openable door at the bottom, and a waterproof motor is installed inside. The motor's output shaft is directly connected to the door to drive its opening and closing. In traditional live fish transportation, fish need to be manually retrieved and transferred using fishing nets upon arrival at their destination. This process causes physical damage (scratching scales, bruising) and significant physiological stress to the fish. For delicate and high-value silver pomfret broodstock, such damage can be fatal, severely impacting their survival rate and reproductive capacity after release. The bottom door design eliminates the need for any manual retrieval of the broodstock. Once the device reaches the designated sea area, simply activating the waterproof motor opens the door, allowing the broodstock to naturally and gently enter the marine environment under their own movement and gravity. This minimizes the physical damage and stress caused to the fish during the operation, greatly ensuring their subsequent health. The motor-driven operation automates the opening process. This means that operators can remotely control the device from the ship, without needing to approach the equipment or perform dangerous and cumbersome manual operations, thus improving operational safety and convenience. The waterproof motor is housed inside the aquaculture tank, directly connected to the hatch. This simple and direct transmission structure reduces complex external mechanical linkages and lowers the failure rate. Simultaneously, the internal design protects the motor from direct impact and corrosion from external waves. The hatch at the bottom of the aquaculture tank is positioned below the bottom of the buoys. This design ensures that when the device floats on the sea surface, the hatch is completely submerged, providing an unobstructed passage for the release of fish. The device integrates transportation and temporary holding functions, with the hatch design serving as the final execution terminal for its "release" function. It creates a perfect closed loop for the entire land-sea relay process. Fish are loaded into the device from the land base, safely transported within the device, and finally smoothly released back into the sea through the bottom hatch. Throughout the entire process, the silver pomfret parent fish are in a stable and safe environment.

[0014] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock features a notch in the middle of the buoy. The sidewall of this notch forms a support groove configured to accommodate and support a pH adjustment tank and an oxygen tank. The transport component is housed within this notch, with the hatch at the bottom of the aquaculture tank positioned below the bottom of the buoy. This notch design allows the transport component (the core functional unit) to be embedded within it, rather than simply suspended below or placed above. This layout significantly reduces the device's lateral dimensions, making its structure more compact and integrated, facilitating stacking, transport, and hoisting on transport vehicles. Placing the weight-concentrated transport component (containing water, fish, and equipment) within the notch of the buoy effectively lowers its center of gravity to near or below the buoy's buoyancy center. This significantly enhances the device's stability in the water, making it less prone to capsizing and allowing it to withstand rough seas. The support grooves installed on the sidewalls of the buoy's notch firmly stabilize the two important auxiliary systems—the pH adjustment tank and the oxygen tank—within the buoy structure, preventing these tanks from swaying, colliding, or even falling off during transportation and in rough seas, thus extending the equipment's lifespan. When the entire device floats on the sea surface, the hatch can be completely submerged in water, and the bottom structure of the buoy will not obstruct the opening of the hatch or the swimming path of fish.

[0015] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock is disclosed, with a hook frame mounted on top of the transport component. The hook frame provides a proven, strength-tested interface specifically designed for lifting, replacing the dangerous practice of temporarily searching for binding points. This complies with engineering safety standards, ensuring the reliability and safety of personnel during heavy lifting operations in complex environments such as docks and ship decks.

[0016] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock comprises a first pipeline equipped with a second water pump, and a second pipeline divided into a first port, a second port, and a third port. The first port connects to a temperature regulation chamber, the second port connects to a filter chamber, and the third port connects to the aquaculture tank. The second pipeline also contains a third water pump. Pumps are installed in both the first and second pipelines, allowing independent water flow without interference. This provides a powerful, environmentally unaffected circulation system, ensuring continuous and stable water exchange even during vehicle movement or sea surface fluctuations, which is fundamental to maintaining uniform water quality and temperature. When the second and third ports are open and the first port is closed, water flows through the aquaculture tank, filter chamber (via the first water pump), temperature regulation chamber (via the first pipeline), and back to the aquaculture tank, performing filtered water circulation. When the first and third ports are open and the second port is closed, water flows through the aquaculture tank, temperature regulation chamber (via the first pipeline), and back to the aquaculture tank, performing forward flow circulation. When the two pumps reverse their positions, reverse flow circulation is achieved. Independent pumping systems allow for precise energy consumption control. For example, when only water agitation or temperature equalization is needed (performing forward / reverse convection), only one or two pumps can operate at low power without activating the filtration system, thus saving energy. When water quality deteriorates and requires intensive filtration, the appropriate pathway is activated, achieving on-demand supply, which is crucial for energy optimization during long-distance transport.

[0017] An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock includes a control system configured to independently adjust the suction speeds of a second and a third water pump to create different water flow states within the aquaculture chamber. The adjustment of the suction speed is based on water quality parameters detected by a first multi-parameter water quality sensor, including at least one of turbidity, dissolved oxygen, or pH. Traditional transport devices often have fixed and monotonous water flow. Fish exposed to this unchanging flow field for extended periods experience discomfort and "environmental fatigue," similar to humans spending long periods in poorly ventilated, stagnant rooms, which exacerbates their physiological stress. By combining the speeds of the second and third water pumps, various flow patterns such as laminar flow, circulation, and turbulence can be created. This adjustable and diverse water flow environment greatly satisfies the ecological needs of the silver pomfret broodstock, reducing their psychological and physiological stress from a fish welfare perspective, which is crucial for ensuring their subsequent health and reproductive capacity. A fixed flow rate can lead to "dead zones" in the aquaculture tank, where feces and uneaten feed accumulate, decomposing and consuming oxygen, producing ammonia and nitrogen, and polluting the water. By changing the suction speed of pumps No. 2 and No. 3, a strong rotating or turbulent flow is generated, effectively sweeping through every corner of the tank bottom, stirring up settled waste and carrying it into the circulation system for treatment in the filtration chamber. This intense mixing ensures extremely uniform distribution of temperature, dissolved oxygen, and salinity throughout the aquaculture tank. This avoids the stress caused to fish in specific areas by localized low temperatures or oxygen deficiency, ultimately creating a cleaner and more stable internal water environment, directly improving the survival rate of the parent fish. The control system intelligently switches water flow modes based on water quality sensor data (such as turbidity and dissolved oxygen). When water quality is poor, a high-speed mode is activated for powerful purification; when water quality is good, a low-speed mode is switched to maintain basic circulation, achieving "precise power delivery." This significantly reduces energy consumption during long-distance transportation while ensuring effectiveness, improving the equipment's endurance and economy.

[0018] An integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock includes a control system configured to set the forward and reverse rotation times of the second and third water pumps, including the forward rotation duration, reverse rotation duration, and interval. The forward and reverse rotation times are dynamically adjusted based on data from the first multi-parameter water quality sensor or a preset schedule to alternately execute forward and reverse water circulation paths. By setting different forward rotation durations, reverse rotation durations, and intervals, non-periodic and unpredictable water flow changes can be created. This "random" water flow stimulation better simulates the complex and variable hydrological conditions in natural waters, continuously stimulating the fish's exploratory and adaptive behaviors, effectively preventing behavioral stereotypedness and physiological stress, and keeping the fish in optimal vitality. The forward and reverse rotation times can be dynamically adjusted based on sensor data. This means the control system has stronger autonomous decision-making capabilities. For example, when the dissolved oxygen sensor reading suddenly drops, the system can immediately stop the current time rhythm and initiate a "high-speed forward and reverse rotation alternation" emergency mode to quickly agitate the water and improve oxygenation efficiency. This upgrades the device from a machine that operates according to a preset program into an intelligent system capable of real-time perception, decision-making, and response, greatly enhancing its ability to cope with unexpected risks during transportation (such as sudden fish populations or a surge in excretion).

[0019] The core advantage of this invention lies in its highly integrated and intelligent design, which combines live fish transportation, temporary holding at sea, and stable release into one system. This fundamentally avoids the secondary harvesting and transfer operations that cause serious damage to silver pomfret broodstock in traditional methods. The closed-loop water circulation system built inside the device has three circulation modes that can be intelligently switched: filtration, forward and reverse flow. It can automatically maintain the cleanliness, stability, and flow of water quality. Combined with precise temperature control, oxygenation, and pH adjustment functions, it provides a stable and suitable artificial environment for the broodstock throughout the entire process. Finally, stress-free release is achieved through an automatic bottom hatch, and it has an environmental transition function with the outside seawater. This comprehensively and throughout the entire process minimizes the stress response and physical damage to silver pomfret broodstock during the land-sea relay aquaculture process, significantly improving their survival rate and subsequent health status. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall device of the present invention; Figure 2This is a schematic diagram of the transport component of the present invention; Figure 3 This is a top view of the interior of the transport component of the present invention; Figure 4 This is a front view of the interior of the transport component of the present invention; Figure 5 This is a schematic diagram of the aquaculture cabin door and waterproof motor of the present invention; Figure 6 This is a schematic diagram of the pontoon of the present invention; Figure 7 This is a side view of the float of the present invention floating on the water surface; Figure 8 For the present invention Figure 3 The second pipeline diagram.

[0022] Attached diagram descriptions: 1-Transportation component, 2-Float, 11-Aquaculture tank, 12-Water circulation tank, 12a-Adjustment chamber, 12b-Filter chamber, 12c-Side door, 13-Blocking plate, 14-Door, 15-Waterproof motor, 16-Hook frame, 21-Notch, 22-Support groove, 31-First pipeline, 32-Second pipeline, 32a-First port, 32b-Second port, 32c-Third port, 41-Oxygen tank, 41a-Microporous oxygenation pipe, 42-pH adjustment tank, 51-Water pump No. 1, 52-Water pump No. 2, 53-Water pump No. 3, 121-Interception zone, 122-Purification zone, 123-Filter screen. Detailed Implementation

[0023] 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.

[0024] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1: See attached document Figure 1 , 2As shown in Figure 3, this embodiment relates to an integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock. This device integrates transportation and temporary holding functions to reduce stress and damage to silver pomfret broodstock during land-sea transfer. The device includes a transportation component 1 and a float 2, wherein the float 2 covers the side of the transportation component 1, providing buoyancy so that the device can float on the sea surface. The aquaculture tank 11 and the water circulation tank 12 in the transportation component 1 both adopt an arc-shaped cylindrical structure. The interior of the aquaculture tank 11 is smooth and without dead corners, avoiding scratches to the fish and protecting the silver pomfret broodstock. The side door 12c of the water circulation tank 12 is located on the side hemispherical part. The side door 12c is locked to the outer body of the water circulation tank 12 with a buckle and is normally in a closed state. Releasing the buckle and opening the side door 12c reveals the interception area 121 of the water circulation tank 12, which facilitates direct cleaning of large particles accumulated inside and the filter screen 123.

[0026] See attached document Figure 2 , 3 As shown, the transport assembly 1 includes a culture tank 11 and a water circulation tank 12, which are connected by a first pipe 31 and a second pipe 32 to form a closed water circulation system. The culture tank 11 is used to house silver pomfret broodstock, and the water circulation tank 12 is used for water treatment. A hook frame 16 is provided on the top of the transport assembly 1 for easy hoisting and transportation. The water circulation tank 12 is internally divided into a temperature regulation chamber 12a and a filtration chamber 12b by a partition 13. The inner wall of the temperature regulation chamber 12a is lined with heating elements for water temperature regulation; the filtration chamber 12b includes an interception zone 121 and a purification zone 122, which are separated by a filter screen 123. The purification zone 122 is filled with several activated carbon packets for adsorbing dissolved pollutants. (See attached diagram) Figure 3 , 8 As shown, the first pipe 31 is equipped with a second water pump 52. The second pipe 32 is a three-way structure, including a first port 32a connecting to the temperature regulating chamber 12a, a second port 32b connecting to the filter chamber 12b, and a third port 32c connecting to the aquaculture chamber 11. The second pipe 32 is equipped with a third water pump 53. Each pipe opening is equipped with a valve, such as a solenoid valve, to control the water flow path. A first water pump 51 is installed on the partition 13 to control the water flow between the temperature regulating chamber 12a and the filter chamber 12b. (See attached diagram.) Figure 1 , 2 As shown in Figures 6 and 7, the float 2 has a notch 21 in its middle, and a support groove 22 is formed on the side wall of the notch 21. The transport assembly 1 is placed in the notch 21 on the sea surface. The support groove 22 is configured to accommodate and support the pH adjustment tank 42 and the oxygen tank 41. When the transport assembly 1 is fully inserted into the notch 21 of the float 2, the hatch 14 at the bottom of the aquaculture tank 11 is lower than the bottom surface of the float 2, ensuring that the hatch 14 is completely submerged in water when opened.

[0027] See attached document Figure 2 , 3As shown, the oxygen tank 41 is fixed to the outer wall of the aquaculture chamber 11 and connected to several microporous oxygenation pipes 41a, through which oxygen is introduced into the aquaculture chamber 11. The pH adjustment tank 42 is fixed to the outer wall of the water circulation chamber 12, with its outlet connected to the interior of the water circulation chamber 12. It contains sodium bicarbonate to stabilize the pH value. The aquaculture chamber 11 is equipped with a first multi-parameter water quality sensor, which integrates a temperature sensor, salinity sensor, dissolved oxygen sensor, pH sensor, and turbidity sensor, used to monitor the temperature, salinity, dissolved oxygen, pH value, and turbidity inside the aquaculture chamber in real time. The bottom of the outer wall of the water circulation chamber 12 is equipped with a second multi-parameter water quality sensor, which integrates a temperature sensor, salinity sensor, dissolved oxygen sensor, and pH sensor, used to monitor seawater temperature, salinity, dissolved oxygen, and pH value. The control system is connected to all sensors, water pumps, valves, heating elements, pH adjustment tank 42, and oxygen tank 41 to achieve automatic control. The control system adjusts the water circulation mode, temperature, pH, and oxygen supply based on sensor data. (See attached document.) Figure 4 , 5 As shown, the bottom of the breeding tank 11 is equipped with an openable door 14, and a waterproof motor 15 is installed inside. The output shaft of the waterproof motor 15 is directly connected to the door to drive the door 14 to open and close, thereby realizing the automatic release of parent fish.

[0028] This device is used to transport silver pomfret broodstock from land-based aquaculture bases to target sea areas for temporary holding and release. The following describes its working process using a typical scenario.

[0029] See attached document Figure 1 As shown, at the land-based aquaculture base, silver pomfret broodstock are loaded into aquaculture tank 11. The tank door 14 is closed, and the transport component 1 and float 2 are hoisted onto the transport vehicle using hooks 16. A flexible mat is laid under the transport component 1 to prevent damage or collisions during transport. The control system is activated, and water quality parameters are initialized. A multi-parameter water quality sensor monitors the temperature, dissolved oxygen, and other parameters within the aquaculture tank. The system is set with preset thresholds: dissolved oxygen not lower than 5 mg / L, pH maintained between 7.8 and 8.2, and temperature between 20 and 24°C (the optimal range for silver pomfret broodstock).

[0030] See attached document Figure 3 , 4As shown, during transportation, the water cannot be changed, and the device relies on internal water circulation to maintain water quality. The control system automatically selects the water circulation path based on data from the No. 1 multi-parameter water quality sensor. When the pH value detected by the No. 1 multi-parameter water quality sensor is not within the pH safety threshold or the turbidity is higher than the turbidity safety threshold, the system prioritizes the filtration water circulation path. The pH safety threshold and turbidity safety threshold can be customized. In this embodiment, the pH safety threshold is set to 7.8-8.2 and the turbidity safety threshold is set to 15 NTU. The valve of the second pipeline 32 is controlled to open the second port 32b and close the first port 32a, allowing water to flow from the breeding chamber 11 through the second pipeline 32 into the filtration chamber 12b. In the filtration chamber, the water first passes through the filter screen 123 in the interception zone 121 to intercept feces and uneaten feed, and then enters the purification zone 122 where impurities are adsorbed by activated carbon. After treatment, the water enters the temperature-regulating chamber 12a through the No. 1 water pump 51, and after being regulated by the heating element, it returns to the breeding chamber 11 through the first pipeline 31. Meanwhile, the oxygen tank 41 provides oxygen through the microporous oxygenation tube 41a to ensure sufficient dissolved oxygen.

[0031] See attached document Figure 3 As shown, when the pH value detected by the first multi-parameter water quality sensor is within the pH safety threshold and the turbidity is below the turbidity safety threshold, the system alternately executes forward and reverse water circulation paths. The valve of the second pipeline 32 is controlled to open the first port 32a and close the second port 32b, allowing water to circulate between the aquaculture chamber 11 and the temperature regulation chamber 12a. In the forward water circulation, water enters the temperature regulation chamber 12a from the aquaculture chamber 11 via the second pipeline 32, and after temperature regulation, returns to the aquaculture chamber 11 via the first pipeline 31, forming a forward flow consistent with the water flow direction (filtered water circulation direction) within the aquaculture chamber, simulating a natural flowing water environment. In the reverse water circulation, by reversing the second pump 52 or the third pump 53, water enters the aquaculture chamber 11 from the temperature regulation chamber 12a via the second pipeline 32, and then returns to the temperature regulation chamber 12a from the aquaculture chamber 11 via the first pipeline 31, forming a reverse flow to prevent dead zones in the water body and to ensure even distribution of dissolved oxygen and temperature. The heating element in the temperature control chamber 12a dynamically adjusts the temperature based on sensor data to avoid the influence of external temperature fluctuations. The pH control chamber 42 automatically adds sodium bicarbonate when it detects a decrease in pH to stabilize the pH value.

[0032] See attached document Figure 1 , 6As shown, upon reaching the target sea area, float 2 is first placed on the sea surface to float, and then transport component 1 is placed inside the notch 21 of float 2. Float 2 keeps the device afloat, and transport component 1 is embedded in the notch 21, ensuring high stability. At this time, the second multi-parameter water quality sensor detects parameters such as seawater temperature and pH. The control system activates the "environmental transition mode": based on seawater data, the temperature of the heating element in the conditioning chamber 12a is adjusted to gradually bring the water temperature in the aquaculture tank to the same level as the seawater; simultaneously, sodium bicarbonate is added to the pH adjustment tank 42 to make the pH value in the aquaculture tank 11 approach the pH value of the seawater (if within the set threshold, the difference does not exceed 0.2). This reduces environmental stress during release. During the temporary holding period, the water circulation mode continues to operate to ensure the parent fish adapt to the marine environment. Oxygen supply is automatically adjusted according to demand.

[0033] See attached document Figure 5 , 6 As shown, once the parent fish have adapted, the waterproof motor 15 is activated via the control system, driving the hatch 14 to open. Since the hatch is lower than the bottom of the float, the parent fish swim naturally out under gravity and enter the ocean. No manual harvesting is required, avoiding stress and injury. After release, the device can be recovered, cleaned, and reused.

[0034] Example 2: This embodiment further optimizes the working logic of its control system based on the basic device structure described in the specification, especially by independently and precisely adjusting the suction speed of the No. 2 water pump 52 and the No. 3 water pump 53, i.e., the rotation speed or flow rate of the water pumps.

[0035] The control system has at least two pre-stored operating modes based on pump speed combinations: a uniform mixing mode and a smooth transition mode. These modes can be automatically switched based on sensor data or manually selected by the operator. Mode 1, the uniform mixing mode, is typically activated in the following situations: during the initial transport phase, after fish feeding, or when the first multi-parameter water quality sensor detects uneven dissolved oxygen distribution within the aquaculture chamber 11 (which can be determined by the differences in values ​​from multiple first multi-parameter water quality sensors) or when turbidity begins to rise. When the uniform mixing mode is activated, the control system instructs the second pump 52 to operate at a higher speed (e.g., 80% of the rated flow rate) while simultaneously instructing the third pump 53 to operate at a medium speed (e.g., 60% of the rated flow rate). This speed combination aims to generate a strong suction force in the second pipeline 32, coordinating with the flow rate in the first pipeline 31 to create a strong horizontal rotating flow (circulation) and a certain degree of turbulence within the aquaculture chamber 11. This flow state can strongly agitate the water, prevent feces and uneaten feed from settling at the bottom of the tank, and allow the oxygen released by the oxygen tank 41 through the microporous oxygenation pipe 41a to be quickly carried to the entire breeding tank 11, avoiding local hypoxia, promoting uniform temperature and salinity in all parts of the water, eliminating stratification, and the dynamic water flow environment can stimulate the silver pomfret parent fish to move moderately and maintain their vitality.

[0036] Mode 2 is a smooth transition mode. When water quality parameters are stable within the optimal range (e.g., pH 7.8-8.2, turbidity below 10 NTU, dissolved oxygen above 6 mg / L), or when the broodstock is about to reach the release area and needs to adapt to a more natural, stable water flow, the control system instructs pumps 52 and 53 to operate at lower and similar speeds (e.g., both at 40% of their rated flow). This speed combination reduces the overall circulation intensity of the system, creating a gentle laminar or large-scale slow flow within the rearing tank 11. This flow pattern significantly reduces the impact of the water flow, providing a low-stress, tranquil environment for the silver pomfret broodstock, which is particularly beneficial for their recovery after long-distance transport. While maintaining basic water quality circulation, it significantly reduces system energy consumption and operating noise, simulating the gentle water flow of open water, providing an ideal transition environment for the subsequent release operation.

[0037] The control system receives real-time data from a single multi-parameter water quality sensor (especially turbidity and dissolved oxygen). Its decision-making logic is as follows: when a rapid increase in turbidity exceeding a preset threshold (e.g., 15 NTU) or a decrease in dissolved oxygen concentration with uneven distribution is detected, the system automatically switches from a "smooth transition mode" to a "uniform mixing mode," addressing water quality deterioration promptly through increased water flow. Once the water quality parameters stabilize within safe thresholds for a period (e.g., continuously for 30 minutes), the system automatically switches back to the "smooth transition mode" to conserve energy and reduce disturbance to the fish. Operators can also manually select or customize the pump speed curve to suit the specific needs of silver pomfret broodstock at different physiological stages (e.g., the breeding season).

[0038] By independently and precisely controlling the suction speeds of pumps two and three, this embodiment transcends the limitations of a single water flow pattern, dynamically creating a water flow environment best suited to the current transportation stage and water quality conditions. This not only physically improves the uniformity and cleaning efficiency of the water quality but also reduces stress responses in silver pomfret broodstock from a pistematological perspective, providing them with a fully adaptive, optimal hydrodynamic environment, thereby further enhancing the survival rate and health of the broodstock during the land-sea relay aquaculture process.

[0039] Example 3: The device in this embodiment includes all the components described in Embodiment 1. Its core lies in the upgrade of the software algorithm of the control system, which enables it to simultaneously schedule the two variables of water pump speed and turning timing.

[0040] The control system has pre-stored advanced composite water flow modes, such as the "simulated tidal flow mode," which is suitable for the temporary holding stage at sea. This mode aims to allow the silver pomfret broodstock to fully adapt to the periodic water flow changes in the target sea area, making final preparations for release. The forward rotation of water pump 52 drives water from the conditioning chamber 12a to the aquaculture tank 11, and the reverse rotation does the opposite. The forward rotation of water pump 53 drives water from the aquaculture tank 11 to the conditioning chamber 12a or the filter chamber 12b, and the reverse rotation does the opposite.

[0041] The overall control system employs the following strategy: First, a cycle is set, for example, simulating a simplified tidal cycle of 12 minutes (4 minutes of "high tide," 2 minutes of "low tide," 4 minutes of "ebb tide," and 2 minutes of "slow current"). During the "high tide" phase, pump 52 operates at high speed, and pump 53 operates at medium speed. Both pumps rotate continuously in the forward direction, forming a strong unidirectional main current. This creates a strong, stable horizontal circulation within the aquaculture tank, simulating the ocean currents that surge in during high tide, stimulating the fish to move against the current. During the "low tide" phase, both pumps reduce to low speed, cease changing direction, and maintain a still or weak flow. This simulates the stagnant water flow at high tide, allowing the fish to rest after their vigorous movement and reducing energy consumption. During the "ebb tide" phase, pump 52 (number 2) slows to medium speed, while pump 53 (number 3) accelerates to high speed. Pump 53 continuously reverses direction, while pump 52 rotates forward, creating a main circulation current that is opposite in direction but slightly weaker than during the "high tide" phase, simulating the ebb tide flow. This fundamental change in direction effectively activates different muscle groups in the fish, preventing fatigue from monotonous movement. During the "slow flow" phase, short, random intervals (e.g., 15-30 seconds) of forward and reverse rotation are used to simulate irregular turbulence and eddies in natural water bodies, providing continuous but gentle environmental stimulation to maintain the fish's alertness and vitality. This composite mode can be automatically activated based on a schedule (e.g., starting the cycle 6 hours before release) or triggered by the number 2 multi-parameter water quality sensor (when a change in external seawater flow velocity is detected). The control system monitors the turbidity and dissolved oxygen in the aquaculture tank in real time. If the water quality indicators are found to deteriorate during the "slow tide" or "slow flow" phase, a strong "uniform mixing mode" pulse can be immediately inserted. After the water quality recovers, the system returns to the tidal simulation cycle. By co-programming the pump speed (spatial structure) with the forward and reverse rotation time (time rhythm), this embodiment realizes the leap from "creating water flow" to "weaving water features".

[0042] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art may make some modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention.

[0043] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An integrated transport and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock, comprising a transport component (1) and a buoy (2), wherein the buoy (2) covers the side of the transport component (1), characterized in that: The transport component (1) includes an aquaculture chamber (11) and a water circulation chamber (12). The aquaculture chamber (11) and the water circulation chamber (12) achieve water circulation through a first pipeline (31) and a second pipeline (32). The water circulation chamber (12) is divided into a temperature regulation chamber (12a) and a filter chamber (12b) by a partition (13). The temperature regulation chamber (12a) is lined with heating elements. A first water pump (51) is installed on the partition (13) to control the connection or separation between the temperature regulation chamber (12a) and the filter chamber (12b). Both the first pipeline (31) and the second pipeline (32) are equipped with water pumps. The second pipeline (32) is a three-way structure with a valve at each port.

2. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 1, characterized in that: The filtration chamber (12b) includes a flow interception zone (121) and a purification zone (122), which are separated by a filter screen (123). The aquaculture chamber (11) is equipped with a multi-parameter water quality sensor for detecting the temperature, salinity, dissolved oxygen, pH value and turbidity in the aquaculture chamber. The purification zone (122) is filled with several activated carbon packets.

3. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 2, characterized in that: It also includes a control system, which is connected to the signal of the first multi-parameter water quality sensor and is configured to control the valve inside the second pipeline (32) when the pH value detected by the first multi-parameter water quality sensor is not within the pH suitable threshold or the turbidity is higher than the turbidity safety threshold, so that the water flow preferentially flows through the filter chamber (12b) to execute the filtered water circulation path. When the pH value detected by the No. 1 multi-parameter water quality sensor is within the appropriate pH threshold and the turbidity is lower than the turbidity safety threshold, the internal valve of the second pipeline (32) is controlled to make the water flow circulate between the breeding chamber (11) and the temperature regulation chamber (12a) to alternately execute the forward flow water circulation and the reverse flow water circulation path.

4. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 2, characterized in that: The bottom of the outer wall of the water circulation chamber (12) is equipped with a No. 2 multi-parameter water quality sensor for detecting seawater temperature, salinity, dissolved oxygen and pH value. A pH adjustment box (42) is fixed on the outer wall of the water circulation chamber (12). The outlet of the pH adjustment box (42) is connected to the inside of the water circulation chamber (12). The pH adjustment box (42) is filled with sodium bicarbonate.

5. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 4, characterized in that: It also includes a control system, which is connected to a second multi-parameter water quality sensor, a heating element in the temperature control chamber (12a), and a pH adjustment tank (42). When the integrated device floats on the sea surface, it adjusts the heating temperature of the heating element and the amount of sodium bicarbonate added in the pH adjustment tank (42) according to the pH value and seawater temperature value measured by the second multi-parameter water quality sensor, so that the heating temperature of the heating element and the seawater temperature value, and the pH value in the aquaculture tank (11) and the seawater pH value are within the set threshold.

6. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 5, characterized in that: An oxygen tank (41) is fixedly installed on the outer wall of the breeding chamber (11). The oxygen tank (41) is connected to several microporous oxygenation pipes (41a), through which oxygen is introduced into the breeding chamber (11).

7. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 6, characterized in that: The bottom of the aquaculture tank (11) is provided with an openable door (14). The aquaculture tank (11) is provided with a waterproof motor (15). The output shaft of the waterproof motor (15) is directly connected to the door and is used to drive the door (14) to open and close. The middle part of the float (2) is provided with a notch (21). The side wall of the notch (21) forms a support groove (22). The support groove (22) is configured to accommodate and support the pH adjustment box (42) and the oxygen box (41). The transport component (1) is configured to be accommodated in the notch (21). The height of the door (14) at the bottom of the aquaculture tank (11) is lower than the bottom surface of the float (2).

8. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 1, characterized in that: The first pipeline (31) is equipped with a second water pump (52). The second pipeline (32) is divided into a first port (32a), a second port (32b), and a third port (32c). The first port (32a) is connected to the temperature regulation chamber (12a), the second port (32b) is connected to the filter chamber (12b), and the third port (32c) is connected to the breeding chamber (11). The second pipeline (32) is equipped with a third water pump (53).

9. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 8, characterized in that: It also includes a control system configured to independently adjust the suction speed of the second water pump (52) and the third water pump (53) to create different water flow states in the aquaculture tank (11); wherein the adjustment of the suction speed is based on water quality parameters detected by the first multi-parameter water quality sensor, including at least one of turbidity, dissolved oxygen or pH value.

10. The integrated transportation and temporary holding device for land-sea relay aquaculture of silver pomfret broodstock as described in claim 8, characterized in that: It also includes a control system configured to set the forward and reverse rotation times of the second water pump (52) and the third water pump (53), including the forward rotation duration, the reverse rotation duration and the interval time; wherein the forward and reverse rotation times are dynamically adjusted according to the data of the first multi-parameter water quality sensor or a preset schedule, so as to alternately execute the forward flow circulation and the reverse flow circulation path.

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