A relay culture method for sphenodon sphenodon in deep-water ponds, high-level ponds, and modular recirculating water culture

Abstract

The present invention relates to the field of aquaculture, and specifically to a relay-type aquaculture method for bream in deep-water ponds, elevated tanks, and modular recirculating aquaculture. The method comprises the following steps: S1: pond cleaning and disinfection: selecting a well-ventilated, sunny, and adequately powered deep-water pond, cleaning the pond, and then spraying 150 to 250 kilograms per mu of quicklime diluted with water throughout the pond to remove toxic and hazardous substances; S2: setting up cages. The present invention overcomes the shortcomings of the prior art by draining aquaculture wastewater from modular aquaculture ponds and treating it through filtration, microbial degradation, and ultraviolet disinfection. The clean water is then returned to the fish pond for repeated use, thereby forming a closed and complete recirculating aquaculture system. This system offers the advantages of high density, high yield, water and land conservation, and environmental control in land-based aquaculture.

Description

Technical Field

[0001] The invention relates to the technical field of croaker aquaculture, and in particular to a relay aquaculture method for croaker aquaculture in a deep-water pond, high-level pool, and modular circulating water. Background Art

[0002] The sliverfish, commonly known as stream grouper, belongs to the Cypriniformes, Cyprinidae, and Hypocridae families. It prefers to inhabit fast-flowing streams and rivers with gravel bottoms and fresh water. A small, commercially available fish, it is primarily found in provinces south of the Yangtze River. A renowned and highly prized species, its tender, delicious, and nutritious meat has long been a favorite among consumers. However, it has become a target of intense fishing, leading to the depletion of wild stocks in streams. The slow pace of research into artificial breeding techniques has further exacerbated the imbalance between supply and demand.

[0003] The current mainstream breeding model for smoothlipped fish is the barrel canvas pool flow breeding model. The breeding cycle generally takes 1.5-2 years. The cycle is long, the breeding conditions are uncontrollable, and the breeding success rate is low. The emerging factory-based recirculating water breeding has problems such as high construction costs, high operating costs, and high labor and technical requirements. Summary of the Invention

[0004] The purpose of the present invention is to solve or at least alleviate the above problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a relay culture method for culturing sphenodon in a deep-water pond, high-level pond, and modular recirculating aquaculture, the method comprising the following steps:

[0006] S1: Pond cleaning and disinfection: Select a deep pond with good ventilation, sunshine and sufficient electricity, clean the pond, and then sprinkle 150 kg to 250 kg of quicklime per mu (approximately 150 kg per mu) of water over the entire pond to remove toxic and harmful substances.

[0007] S2: Setting up cages: Cages with a depth greater than 3m should be set up in deep ponds. The mesh size and cage depth should be based on the principle of preventing fish from escaping, saving materials, and facilitating water exchange.

[0008] S3: Pond Fertilization: One week before stocking fry, fertilize the water with products such as amino acid fertilizer paste. When a large number of rotifers and cladocerans can be seen in the water, you can prepare to stock the fry.

[0009] S4: Fry stocking: Select sablefish with an average body length of 0.6 cm to 0.8 cm, a healthy physique, no obvious lesions, and strong swimming ability. Then soak the fry in 2% to 4% salt water for 1 to 3 minutes to disinfect the fry, and then stock them into deep water ponds;

[0010] S5: Daily management: One week before the fry are put into the pond, there is no need to feed the fry because there are sufficient live baits in the pond for the fry to eat. When the water quality turns thin, you can feed an appropriate amount of powdered feed, on the one hand for the fry to eat, on the other hand for fertilizing the water. When it is observed that there is little live bait in the water body, start feeding three times a day, namely 8:00-8:30 in the morning, 10:30-11:00 in the morning and 16:30-17:00 in the afternoon. The feeding location is relatively fixed, and the powdered feed or crushed feed with a size of less than 0.5mm is fed. The protein content is required to be 40% to 45%. It is fed according to the percentage of fish body weight, with a daily feeding rate of 3% to 5%, and the water temperature is monitored in real time;

[0011] S6: Transplantation: When the water temperature drops below 20°C, the fish in the cages are moved to modular aquaculture ponds for culture. The feed rate is 3% to 4% of the total weight of the fish, and they are fed 2-3 times a day, at 9:00-10:00 and 15:30-16:30 respectively.

[0012] S7: Regular water changes: The aquaculture wastewater in the modular aquaculture pond is regularly discharged and treated through filtration, microbial degradation, ultraviolet disinfection, etc. The clean water is then transported back to the fish pond and can be reused.

[0013] Optionally, the height of the upper opening of the cage from the water surface in step S2 is greater than 40 cm.

[0014] Optionally, a sunshade net is laid on the top of the deep water pond in step S1.

[0015] Optionally, the modular breeding pond in S5 includes a pond body, the interior of the obtained pond body is evenly and evenly spaced with detachable grilles, a plurality of columns are evenly fixedly connected to both sides of the top of the pond body, the tops of the columns are fixedly connected to photovoltaic panels, one side of the pond body is fixedly connected to an air source heat pump, the photovoltaic panel is electrically connected to the air source heat pump, one side of the pond body is fixedly connected to a drain valve, the drain valve is fixedly connected to a drain pipe at one end away from the pond body, and a water treatment mechanism is provided on the side of the drain pipe away from the pond body.

[0016] Optionally, the water treatment mechanism includes a treatment pool fixedly connected to the drain pipe, a filter cartridge is detachably connected to one side of the top of the treatment pool, a cover is fixedly connected to the other side of the top of the pool body, a plurality of ultraviolet lamps are evenly fixedly connected to the bottom of the cover, a drop hopper is fixed through the top of the cover, a water pump fixedly connected to the cover is provided on one side of the drop hopper, the input end of the water pump is fixedly connected to a bellows, the output end of the water pump is fixedly connected to a guide pipe, and the guide pipe is fixedly connected to the pool body.

[0017] Optionally, the top of each group of the grilles is fixedly connected to a fixing plate, the top of each group of the fixing plates is symmetrically threaded with fixing bolts, a plurality of threaded holes are evenly opened on both sides of the top of the pool body, and each group of the fixing bolts is threadedly connected to the pool body.

[0018] Optionally, L-shaped release plates are symmetrically abutted against the bottom of the filter cartridge, and two groups of the L-shaped release plates are fixedly connected to the inner wall of the treatment tank.

[0019] Optionally, the bottom of the bellows is fixedly connected to a water pumping pipe, the outer side of the water pumping pipe is fixedly connected to a floating body, and the four corners of the bottom of the floating body are fixedly connected to fixing bolts.

[0020] Optionally, a guide rod is slidably connected to the interior of the float, and both ends of the guide rod are fixedly connected to the treatment pool and the cover plate respectively.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) This application discharges the aquaculture wastewater from the modular aquaculture pond and processes it through filtration, microbial degradation, ultraviolet disinfection, etc., and then the clean water is transported back to the fish pond for repeated use, thereby forming a closed and complete recirculating aquaculture system. It has the advantages of high density, high yield, water saving, land saving, and environmental control in land aquaculture.

[0023] (2) This method is to place the light lip fish in a high-level pond in a deep water pond during high temperature, so that the water depth can be used to survive the summer in the high temperature season, thereby improving the survival rate; the so-called high-level pond refers to a pond with a bottom drainage function, which is equivalent to being able to discharge pollutants such as feces and leftover bait in a timely manner, thereby optimizing the aquaculture water quality; after the temperature drops below 20°C, the light lip fish is moved to a modular aquaculture pond, so that when the temperature is high, the deep water pond can protect the light lip fish from the influence of the high temperature, thereby improving the survival rate of the light lip fish in high temperature, increasing the yield of the light lip fish, shortening the aquaculture cycle, and saving aquaculture costs;

[0024] (3) By installing photovoltaic panels and air source heat pumps, the air source heat pump can heat the pond when it starts working, so that the water temperature of the pond can be maintained at around 25°C when the temperature is low. In this way, the entire breeding period only takes 7 to 9 months, thereby shortening the breeding cycle of the smooth croaker. The electricity generated by the photovoltaic panels can also be used for the operation of the air source heat pump, thereby reducing the breeding cost of the smooth croaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the modular aquaculture pond structure of the present invention;

[0026] Figure 2 For the present invention Figure 1A magnified view of the structure of the middle part A;

[0027] Figure 3 For the present invention Figure 1 A magnified view of the structure of the middle B section;

[0028] Figure 4 For the present invention Figure 1 Enlarged view of the structure of the middle C section;

[0029] Figure 5 It is a schematic diagram of the side sectional structure of the pool body of the present invention.

[0030] In the figure: 1. Pool body; 2. Grille; 3. Column; 4. Photovoltaic panel; 5. Fixing plate; 6. Fixing bolt; 7. Threaded hole; 8. Support rod; 9. Drain valve; 10. Drain pipe; 11. Filter cartridge; 12. Treatment pool; 13. Cover plate; 14. Drop hopper; 15. Guide rod; 16. Water pump; 17. Bellows; 18 Diversion pipe; 19. Ultraviolet lamp; 20. L-shaped stripping plate; 21. Float; 22. Water pipe; 23. Air source heat pump. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-5 A relay-style aquaculture method for smelt in deep-water ponds, high-level ponds, and modular recirculating aquaculture includes the following steps: S1: Pond cleaning and disinfection: Select a well-ventilated, sunny, and well-powered deep-water pond, clean the pond, and then sprinkle 150 to 250 kg / mu of quicklime diluted in water throughout the pond. Ancillary facilities, including water inlets and outlets, such as nets, should also be disinfected. After two days, water should be added and repeated several times to completely remove toxic and hazardous substances. Specifically, disinfection can be performed using bleaching powder with a 30% chlorine content, thereby reducing the risk of disease in the fry. S2: Cage installation: Cages greater than 3 meters deep should be installed in the deep pond; the top of the cage in step S2 should be at least 40 cm above the water surface.

[0033] The mesh size and cage depth are designed to prevent fish from escaping, conserve materials, and facilitate water exchange. The cage frame is constructed from bamboo strips, wood, steel pipes, polyethylene tubing, and fasteners. The floats are constructed from foam, plastic buckets, or floating barrels. The sinkers are constructed from porcelain, cement blocks, iron blocks, or stones, preferably removable. A sunshade net is placed on the top of the deep pond in step S1 to reduce water temperature, prevent birds from stealing food, minimize external interference, and improve survival rates.

[0034] S3: Pond fertilization: One week before stocking the fry, fertilize the water with products such as amino acid fertilizer paste. When a large number of rotifers and cladocerans can be seen in the water, you can prepare to stock the fry.

[0035] S4: Stocking fry: Select smooth-lipped fish with an average body length of 0.6 cm to 0.8 cm, a strong physique, no obvious lesions, and strong swimming ability. Then soak the fish in 2-4wt% salt water for 1-3 minutes to disinfect the fish. You can also soak them in 5mg / L potassium permanganate solution for 10-15 minutes before stocking them into deep water ponds. The specific stocking time should be in the morning or evening when the weather is good. At this time, the air and water temperature are relatively low, the fry are less active, and the survival rate is higher relative to transportation. When stocking the fry, first place the oxygen bag containing the fry in the pond for about half an hour to keep the water temperature inside and outside the bag consistent and allow the fry to acclimate to the water temperature in the pond. Then, release the fry into the pond to improve the survival rate of the fry.

[0036] S5: Daily Management: One week before stocking the fry, there's no need to feed them, as there's ample live bait available. If the water becomes clear, feed a moderate amount of powdered feed to both feed the fry and enrich the water. When live bait becomes scarce, begin feeding three times daily: 8:00-8:30 AM, 10:30-11:00 AM, and 4:30-5:00 PM. Feed at a relatively fixed location. Feed powdered or crushed feed smaller than 0.5mm in size, with a protein content of 40%-45% based on the fish's body weight, at a daily feeding rate of 3%-5%. Monitor the water temperature regularly. Patrol the pond daily, morning, noon, and evening, to monitor fish growth, feeding, and activity, paying particular attention to hypoxia in the early morning. Maintain a constant watch on the water flow and quality, carefully inspect the inlet and outlet for blockage, and promptly remove debris to prevent the entry of stray fish and other predators.

[0037] Feeding management: Regular sampling inspections of fish growth are required, and the amount of feed should be adjusted in due time. Daily records of weather, water temperature, feed amount, medication, fishing sales, and dead fish should be kept for easy reference. When feeding compound feeds, a small amount of concentrated feed and plant-based bait should be used to assist the growth of the fish, such as sedge, soybean meal, corn meal, etc. In the early stages of breeding, due to the uneven physical fitness of the seedlings and differences in their ability to grab food, the sizes will vary. During the breeding process, timely screening and grading should be carried out according to the sampling inspection results to ensure that the fish in the same pond are of similar size, to ensure uniform feeding, and to increase the survival rate. Try to avoid injuries during stocking, fishing, and pond transfer. During the breeding process, use 0.5g / m 3 Disinfect the water with 0.5mg / kg of bromochlorohydrin or 0.5mg / kg of povidone iodine, and add 0.2g / kg of allicin or 5g / kg of vitamin C to the feed to prevent enteritis and enhance resistance, which can basically control the occurrence of the disease.

[0038] S6: Transplantation: When the water temperature drops below 20°C, the fish in the cages are moved to modular aquaculture ponds for breeding. The feeding amount is 1% to 2% of the total weight of the fish, and they are fed 2-3 times a day, at 9:00-10:00 and 14:30-15:30 respectively.

[0039] S7: Regular water changes: The aquaculture wastewater in the modular aquaculture pond is regularly discharged and treated through filtration, microbial degradation, ultraviolet disinfection, etc. The clean water is then transported back to the fish pond and can be reused.

[0040] See also Figure 1-5 The modular aquaculture pond in S5 includes a pond body 1, with gratings 2 uniformly and evenly spaced and removably installed inside the pond body 1. The gratings 2 are used to partition the interior of the pond body 1. A fixing plate 5 is fixedly connected to the top of each set of gratings 2, and a fixing bolt 6 is symmetrically threadedly connected to the top of each set of fixing plates 5. A plurality of threaded holes 7 are evenly formed on both sides of the top of the pond body 1, and each set of fixing bolts 6 is threadedly connected to the pond body 1. The fixing bolts 6 are configured to be screwed into different threaded holes 7 to adjust the spacing between two adjacent sets of gratings 2, thereby arbitrarily adjusting the aquaculture density to meet the requirements of fry density at different aquaculture stages.

[0041] See also Figure 1-5, multiple columns 3 are evenly fixedly connected to both sides of the top of the pool body 1, and photovoltaic panels 4 are fixedly connected to the top of the columns 3. The setting of the photovoltaic panels 4 can play a role in sunshade. An air source heat pump 23 is fixedly connected to one side of the pool body 1. The setting of the air source heat pump 23 is used to supply heat to the pool body 1 when starting work, so as to maintain a constant temperature of the pool body 1 when the temperature is low, thereby ensuring the temperature requirement for the growth of the smooth croaker. The photovoltaic panels 4 are electrically connected to the air source heat pump 23, and the electricity generated by the photovoltaic panels 4 when working can also be used for the operation of the air source heat pump, thereby reducing the breeding cost of the smooth croaker.

[0042] See also Figure 1-5 One side of the tank body 1 is fixedly connected to a drain valve 9, and the drain valve 9 is fixedly connected to a drain pipe 10 at one end away from the tank body 1. The drain valve 9 is provided to discharge the aquaculture water inside the tank body 1 when it is opened. A water treatment mechanism is provided on the side of the drain pipe 10 away from the tank body 1. The water treatment mechanism includes a treatment tank 12 fixedly connected to the drain pipe 10, and a filter cartridge 11 is detachably connected to one side of the top of the treatment tank 12. The filter cartridge 11 is provided to filter the aquaculture water discharged from the drain pipe 10. The bottom of the filter cartridge 11 is symmetrically abutted with an L-shaped de-plate 20, and two groups of L-shaped de-plates 20 are fixedly connected to the inner wall of the treatment tank 12. The L-shaped de-plate 20 is provided to support the filter cartridge 11, so as to facilitate the subsequent removal of the filter cartridge 11 to clean the impurities filtered out of the filter cartridge 11.

[0043] See also Figure 1-5 A cover plate 13 is fixedly connected to the other side of the top of the pool body 1, and a drop hopper 14 is fixed through the top of the cover plate 13. The setting of the drop hopper 14 facilitates the addition of microbial degradation bacteria into the interior of the treatment pool 12, thereby degrading impurities such as leftover bait and feces in the water. A plurality of ultraviolet lamps 19 are evenly fixedly connected to the bottom of the cover plate 13. The ultraviolet lamps 19 are set to kill pathogens in the water by ultraviolet irradiation during startup. A water pump 16 fixedly connected to the cover plate 13 is provided on one side of the drop hopper 14. A bellows 17 is fixedly connected to the input end of the water pump 16. The water pump 16 is set to extract the treated water from the interior of the treatment pool 12 during startup.

[0044] See also Figure 1-5The bottom of the bellows 17 is fixedly connected to a water pumping pipe 22, and the outside of the water pumping pipe 22 is fixedly connected to a float 21. The float 21 is designed to float in the water by utilizing its own buoyancy. The four corners of the bottom of the float 21 are fixedly connected to fixing bolts 6. The fixing bolts 6 are provided to support the float 21 and the water pumping pipe 22, thereby reducing the probability that the water pumping pipe 22 will absorb impurities precipitated at the bottom of the treatment tank 12. The interior of the float 21 is slidably connected to a guide rod 15. The two ends of the guide rod 15 are fixedly connected to the treatment tank 12 and the cover plate 13 respectively. The guide rod 15 is provided to guide the up and down movement of the float 21. The output end of the water pump 16 is fixedly connected to a guide pipe 18. The guide pipe 18 is fixedly connected to the tank body 1 and is provided to guide the treated water extracted by the water pump 16 to the interior of the tank body 1 to achieve water recycling.

[0045] Working principle: After the water temperature is lower than 20℃, the fish in the cage are moved to the pond body 1 for breeding. The feeding amount is 3% to 4% of the total weight of the fish, and feeding is done 2-3 times a day, at 9:00-10:00 and 15:30-16:30 respectively. Subsequently, the breeding wastewater in the modular breeding pond is discharged regularly and treated by filtration, microbial degradation, ultraviolet disinfection and other links. The clean water is then transported back to the fish pond and can be used repeatedly. Specifically, when it is necessary to replace the breeding water inside the pond body 1, the drain valve 9 can be opened so that the breeding water inside the pond body 1 can be discharged into the interior of the filter cartridge 11 through the drain pipe 10, and then filtered by the filter cartridge 11 and discharged into the interior of the treatment tank 12. Then, microbial degradation strains are poured into the interior of the drop hopper 14, and then discharged into the water inside the treatment tank 12 through the diversion of the drop hopper 14, so that the microorganisms can reproduce and degrade impurities such as leftover bait and feces in the aquaculture wastewater. Then, the ultraviolet lamp 19 can be turned on to sterilize the biodegraded water by ultraviolet irradiation, and then the water pump 16 is started, so that when the water pump 16 starts working, the purified water inside the treatment tank 12 can be pumped into the interior of the diversion pipe 18, and then discharged into the tank body 1 again through the diversion of the treatment tank 12, thereby forming a closed and complete recirculating aquaculture system, which has the advantages of high density, high yield, water saving, land resource saving, and controllable environment in land aquaculture.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for the relay culture of sphenodon in deep-water ponds, elevated tanks, and modular recirculating aquaculture, characterized by: The method comprises the following steps: S1: Pond cleaning and disinfection: Select a deep pond with good ventilation, sunshine and sufficient electricity, clean the pond, and then sprinkle 150 kg to 250 kg of quicklime per mu (approximately 150 kg per mu) of water over the entire pond to remove toxic and harmful substances. S2: Setting up cages: Cages with a depth greater than 3m should be set up in deep ponds. The top of the cage should be at least 40cm above the water surface. The mesh size and cage depth should be such that fish cannot escape, materials are conserved, and water exchange is facilitated. S3: Pond Fertilization: One week before stocking the fry, fertilize the water with amino acid fertilizer paste. When a large number of rotifers and cladocerans are visible in the water, prepare to stock the fry. S4: Fry stocking: Select smooth-lipped fish fry with an average body length of 0.6 cm to 0.8 cm, a healthy physique, no obvious lesions, and strong swimming ability. Then soak the fish in 2% to 4% salt water for 1 to 3 minutes to disinfect the fish, and then stock them into deep water ponds; S5: Daily management: One week before the fry are put into the pond, there is no need to feed them because there is sufficient live bait in the pond for the fry to eat. When the water quality turns thin, you can feed them in an appropriate amount of powdered feed, which is used for the fry to eat and for fertilizing the water. When the amount of live bait in the water is low, start feeding them three times a day, namely 8:00-8:30 in the morning, 10:30-11:00 in the morning and 16:30-17:00 in the afternoon. The feeding location is relatively fixed. Feed them powdered feed or crushed feed with a particle size of less than 0.5mm and a protein content of 40%-45%. Feed them according to the percentage of fish body weight, with a daily feeding rate of 3%-5%, and monitor the water temperature in real time. S6: Transplantation: When the water temperature drops below 20°C, the fish in the cages are moved to modular aquaculture ponds for culture. The feed rate is 3% to 4% of the total weight of the fish, and they are fed twice a day, at 9:00-10:00 and 15:30-16:

30. S7: Regular water changes: The aquaculture wastewater in the modular aquaculture pond is regularly discharged and treated through filtration, microbial degradation, and ultraviolet disinfection. The clean water is then transported back into the fish pond and can be reused.

2. The method for aquaculture of sphenodon in a deep-water pond with elevated position and a modular recirculating aquaculture system according to claim 1, characterized in that: In step S2, the height of the upper opening of the cage from the water surface is greater than 40 cm.

3. The method for aquaculture of sphenodon in a deep-water pond with elevated position and a modular recirculating aquaculture system according to claim 1, characterized in that: The top of the deep water pond in step S1 is covered with a sunshade net.

4. The method for aquaculture of glabresma in a deep-water pond with elevated position and a modular recirculating aquaculture system according to claim 1, characterized in that: The modular aquaculture pond in S6 comprises a pond body (1), wherein the interior of the obtained pond body (1) is evenly and evenly spaced and detachably installed with grilles (2), a plurality of columns (3) are evenly fixedly connected to both sides of the top of the pond body (1), a photovoltaic panel (4) is fixedly connected to the top of the column (3), an air source heat pump (23) is fixedly connected to one side of the pond body (1), the photovoltaic panel (4) is electrically connected to the air source heat pump (23), a drain valve (9) is fixedly connected to one side of the pond body (1), an end of the drain valve (9) away from the pond body (1) is fixedly connected to a drain pipe (10), and a water treatment mechanism is provided on the side of the drain pipe (10) away from the pond body (1).

5. The method for the relay culture of sphenodon in deep-water ponds, high-level ponds and modular recirculating aquaculture according to claim 4, characterized in that: The water treatment mechanism comprises a treatment pool (12) fixedly connected to the drain pipe (10), a filter cartridge (11) is detachably connected to one side of the top of the treatment pool (12), a cover plate (13) is fixedly connected to the other side of the top of the pool body (1), a plurality of ultraviolet lamp tubes (19) are evenly fixedly connected to the bottom of the cover plate (13), a drop hopper (14) is fixedly passed through the top of the cover plate (13), a water pump (16) fixedly connected to the cover plate (13) is provided on one side of the drop hopper (14), an input end of the water pump (16) is fixedly connected to a bellows (17), an output end of the water pump (16) is fixedly connected to a guide pipe (18), and the guide pipe (18) is fixedly connected to the pool body (1).

6. The method for the relay culture of sphenodon in deep-water ponds, elevated tanks, and modular recirculating aquaculture according to claim 5, characterized in that: The top of each group of the grilles (2) is fixedly connected to a fixing plate (5), and the top of each group of the fixing plates (5) is symmetrically threadedly connected to a fixing bolt (6). A plurality of threaded holes (7) are evenly opened on both sides of the top of the pool body (1), and each group of the fixing bolts (6) is threadedly connected to the pool body (1).

7. The method for the relay culture of sphenodon in deep-water ponds, elevated tanks and modular recirculating aquaculture according to claim 6, characterized in that: The bottom of the filter cartridge (11) is symmetrically abutted with L-shaped debonding plates (20), and two groups of the L-shaped debonding plates (20) are fixedly connected to the inner wall of the treatment tank (12).

8. The method for the relay culture of sphenodon in deep-water ponds, elevated tanks and modular recirculating aquaculture according to claim 7, characterized in that: The bottom of the bellows (17) is fixedly connected to a water pumping pipe (22), the outer side of the water pumping pipe (22) is fixedly connected to a floating body (21), and the four corners of the bottom of the floating body (21) are fixedly connected to fixing bolts (6).

9. The method for the relay culture of sphenodon in deep-water ponds, elevated tanks and modular recirculating aquaculture according to claim 8, characterized in that: A guide rod (15) is slidably connected inside the float (21), and two ends of the guide rod (15) are fixedly connected to the treatment pool (12) and the cover plate (13), respectively.

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