Construction and management method of multi-nutrient level aquaculture system

Abstract

The present application relates to the field of aquaculture, and more particularly to a multi-nutrient level aquaculture system, comprising a breeding tank, a breeding platform and a partition plate; the breeding tank is fixedly connected with the partition plate; the upper part of the breeding tank is connected with the breeding platform; the present application realizes the interception of residual fish manure and fish food by the interception net in the third breeding area, greatly increases the organic matter content in the third breeding area, and enables the aquatic plants to better absorb the nutrients in the water; at the same time, the aquatic plants can also absorb carbon dioxide in the water through photosynthesis and release oxygen, thereby improving the water quality; and the mesh size of the interception net gradually decreases from front to back, thereby intercepting different sizes of organic impurities in the water, avoiding the concentration of organic impurities in the water in the area where the first filter screen is located when only a single filter screen or multiple filter screens with the same mesh size are arranged, and causing the uneven distribution of organic impurities in the third breeding area, thereby affecting the absorption of nutrients by the aquatic plants.

Description

Technical Field

[0001] This invention relates to the field of aquaculture, and in particular to a method for constructing and managing a multi-trophic-level aquaculture system. Background Technology

[0002] With global population growth and increasing demand for protein, aquaculture, as a sustainable food production method, has received widespread attention. Traditional monoculture models often face problems such as environmental pollution, resource waste, and low economic efficiency. In order to improve the sustainability and economic benefits of aquaculture, multitrophic aquaculture systems have gradually gained importance in recent years as an eco-friendly aquaculture model.

[0003] However, existing multitrophic aquaculture systems usually have aquatic plant cultivation platforms set up on the upper side of the culture tank to cultivate aquatic plants in hydroponics. After the aquatic plants grow, they can provide food for the fish and use the fish's excrement and excess fish food to provide nutrients for the aquatic plants. However, in order to create a good growth environment for the fish, the water in the culture tank needs to be circulated and replaced to improve water quality. A large amount of excrement and fish food and other organic matter in the culture tank will be lost with the water circulation, resulting in waste of excrement and fish food. Summary of the Invention

[0004] To overcome the shortcomings of existing multitrophic level aquaculture systems, which require water circulation and replacement in the rearing tanks to create a good growth environment for fish and improve water quality, resulting in the loss of a large amount of organic matter such as fish feces and waste of excrement and fish food, this invention provides a multitrophic level aquaculture system.

[0005] Technical solution: A multi-trophic-level aquaculture system, comprising: a culture tank, a culture platform, a partition plate, and a pull-out plate; the partition plate is fixedly connected inside the culture tank; the partition plate divides the interior of the culture tank into a first culture zone and a second culture zone; the culture platform is connected to the upper part of the culture tank, and several culture troughs are opened on the culture platform, with a third culture zone opened inside the culture platform; the lower side of the culture platform consists of two electrically operated rotating plates; a pull-out plate is slidably connected to the lower side of the culture tank; it also includes an inlet pipe, an outlet pipe, an electric push rod, a sliding pipe, and an interception net; Several inlet pipes are fixed to the front of the breeding platform; several outlet pipes are fixed to the rear of the breeding platform; a sliding pipe is slidably connected inside the outlet pipe; the lower end of the sliding pipe passes through the partition plate and is located in the second breeding area; several electric push rods are fixed to the second breeding area; the telescopic end of each electric push rod is fixed to the lower end of the corresponding sliding pipe; several first outlets are opened on the lower side of the outlet pipe; several second outlets are opened on the lower side of the sliding pipe; several inlet pipes are opened on the upper side of the sliding pipe; several interception nets are set in the third breeding area.

[0006] Furthermore, the mesh size of several interception nets set up in the third aquaculture area gradually decreases from front to back.

[0007] Furthermore, the breeding platform only partially covers the breeding boxes.

[0008] Furthermore, it also includes sliding parts, connecting frames, and cleaning rods; sliding parts are fixed to the front and rear sides of the breeding box; connecting frames are slidably connected to the front and right sides of the first breeding area; the connecting frame located on the front side is connected to the water inlet pipe; the connecting frame located on the rear side is connected to the water outlet pipe; and the sliding pipe passes through the corresponding connecting frame; several cleaning rods are connected between the two connecting frames, and the cleaning rods are in contact with the bottom surface of the first breeding area.

[0009] Furthermore, it also includes an interceptor plate, a fixing block, a funnel, and filter cotton; a sliding groove is provided on the sliding pipe; a fixing block is fixedly connected to the outlet pipe; the fixing block is located inside the sliding pipe and slides in the sliding groove; filter cotton for filtering organic matter and impurities is fixedly connected to the upper side of the fixing block; a funnel is fixedly connected to the lower side of the fixing block; an interceptor plate is fixedly connected to the sliding pipe, and the interceptor plate is in contact with the outer surface of the funnel.

[0010] Furthermore, it also includes protrusions; several protrusions are fixedly attached to the partition plate; the cleaning rod and the corresponding connecting frame are rotatably connected by a torsion spring.

[0011] Furthermore, it also includes an aerator; an aerator is fixed to the left side of the breeding box; the aerator is located in the first breeding area.

[0012] Furthermore, it also includes a temperature sensor; a temperature sensor for real-time water temperature detection is fixed to the lower rear part of the aerator.

[0013] Furthermore, it also includes a water quality detector; a water quality detector for real-time water quality monitoring is fixedly attached to the lower front of the aerator.

[0014] A method for constructing and managing a multitrophic level aquaculture system, comprising the following specific steps:

[0015] Step 1: First, workers raise fish with different diets or habits in the first breeding area; raise aquatic plants in the breeding tanks; and raise filter-feeding snails in the second breeding area.

[0016] Step 2: The miniature water pumps in the inlet and outlet pipes are started at regular intervals to make the water flow in the first and third breeding areas at regular intervals. The residual organic impurities in the first breeding area are intercepted by the interception net and placed in the third breeding area. At the same time, the aquatic plants in the third breeding area absorb carbon dioxide and release oxygen from the water, thereby improving the water quality.

[0017] Step 3: The electric push rod is retracted downward by the worker, which drives the sliding tube to move down, thereby sending the organic impurities and microorganisms intercepted by the interception plate and filter cotton into the second breeding area to provide nutrients for the snail filter-feeding organisms;

[0018] Step 4: Start the aerator to generate aeration, increase the oxygen content in the aquaculture water, improve the aquaculture effect, and promote fish growth; and use temperature sensors and water quality detectors to monitor the water conditions and adjust the aquaculture conditions to maintain system stability and optimize yield.

[0019] The beneficial effects are as follows: This invention achieves the interception of residual fish feces and fish food through the interception net in the third aquaculture zone, which greatly increases the organic matter content in the third aquaculture zone, allowing aquatic plants to better absorb nutrients from the water. At the same time, during the circulation of water through the third aquaculture zone, aquatic plants can also absorb carbon dioxide and release oxygen through photosynthesis, thereby improving water quality. Furthermore, the mesh size of the interception net gradually decreases from front to back, thus intercepting organic impurities of different sizes in the water through the filter. This avoids the situation where most organic impurities in the water are concentrated in the area of ​​the first filter when only a single filter or multiple filters with the same mesh size are set up, resulting in uneven distribution of organic impurities in the third aquaculture zone and affecting the absorption of nutrients by aquatic plants.

[0020] The cleaning rod and the bristles on its lower side agitate the fish feces settled on the lower side of the first breeding area; and the cleaning rod will contact the protrusion when it moves left and right. When the cleaning rod passes the protrusion, it will swing left and right, further dispersing the residual fish feces, fish food and other organic impurities settled on the lower side of the first breeding area, so that they float in the water, thereby improving the suction effect of the water inlet pipe on residual fish feces, fish food and other organic impurities.

[0021] The filter cotton performs secondary filtration to remove organic impurities and microorganisms from the water, improving water quality. Workers can periodically activate an electric push rod to lower the sliding pipe and interceptor plate, sealing the first outlet and disconnecting the inlet from the third aquaculture zone. This allows residual water in the sliding pipe to fall into the second aquaculture zone, while simultaneously carrying the organic impurities and microorganisms intercepted by the interceptor plate into the second aquaculture zone. This provides food and nutrients for the filter-feeding snails cultured on the pull-out plate. This achieves complementarity and symbiosis among the organisms cultured in the first, second, and third aquaculture zones. Excrement and leftover food from various organisms can be utilized by other organisms, achieving multi-level nutrient utilization and constructing a multi-trophic-level integrated aquaculture model, thus realizing efficient resource utilization and sustainable environmental development.

[0022] The aerator is activated to generate aeration, increasing the oxygen content in the aquaculture water, improving aquaculture results, and promoting fish growth. Furthermore, temperature sensors and water quality detectors are used to monitor water conditions and adjust aquaculture conditions to maintain system stability and optimize yield. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the multi-trophic level aquaculture system of the present invention;

[0024] Figure 2 This is a cross-sectional view of the breeding box of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the connection frame, clearing rod, and protrusion combination of the present invention;

[0026] Figure 4 This is a cross-sectional view of the aquaculture platform of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the electric push rod, sliding tube, and water outlet pipe combination of the present invention.

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the three-dimensional structure at point A in the diagram;

[0029] Figure 7 For the present invention Figure 5 A schematic diagram of the three-dimensional structure at point B in the diagram;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the interceptor plate, funnel, and filter cotton combination of the present invention.

[0031] Figure 9 This is a diagram showing the separation state of the interceptor plate and the funnel in this invention;

[0032] Figure 10 This is a three-dimensional structural diagram of the aerator, temperature sensor and water quality detector combination of the present invention. Parts and their numbers in the diagram: 1-Aquaculture box, 1001-First aquaculture zone, 1002-Second aquaculture zone, 2-Water inlet pipe, 3-Drainage pipe, 4-Sliding part, 5-Aquaculture platform, 5001-Aquaculture trough, 5002-Third aquaculture zone, 101-Divider plate, 102-Connecting frame, 103-Inlet pipe, 104-Outlet pipe, 10401-First outlet, 105-Cleaning rod, 106-Protrusion, 107-Pull-out plate, 108-Blocking net, 201-Electric push rod, 202-Sliding pipe, 20201-Sliding trough, 20202-Second outlet, 20203-Inlet, 203-Blocking plate, 204-Fixing block, 205-Function funnel, 206-Filter cotton, 207-Aerator, 208-Temperature sensor, 209-Water quality detector. Detailed Implementation

[0033] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] A multi-trophic level aquaculture system, such as Figures 1-9 As shown, it includes: a rearing tank 1, a water supply pipe 2, a drainage pipe 3, a rearing platform 5, a partition plate 101, and a pull-out plate 107; the partition plate 101 is fixedly connected inside the rearing tank 1; the partition plate 101 divides the interior of the rearing tank 1 into a first rearing area 1001 and a second rearing area 1002, and the first rearing area 1001 and the second rearing area 1002 are not connected; the first rearing area 1001 can be equipped with multiple partition plates to separate fish with different diets or habits within the first rearing area 1001; the first rearing area 100... 1. A water supply pipe 2 is connected to the right side of the second breeding area 1002; 2. A drainage pipe 3 is connected to the right side of the breeding box 1; 3. A breeding platform 5 is connected to the upper part of the breeding box 1, and several breeding troughs 5001 are opened on the breeding platform 5. A third breeding area 5002 is opened inside the breeding platform 5; 4. Two electric rotating plates are composed of the lower side of the breeding platform 5, which are used to open the third breeding area 5002 and connect the third breeding area 5002 to the first breeding area 1001; 5. A pull-out plate 107 is slidably connected to the lower side of the breeding box 1, and the pull-out plate 107 is located inside the second breeding area 1002;

[0036] It also includes an inlet pipe 103, an outlet pipe 104, an electric push rod 201, a sliding pipe 202, and an intercepting net 108; two inlet pipes 103 are fixedly connected to the front side of the breeding platform 5; two outlet pipes 104 are fixedly connected to the rear side of the breeding platform 5, and a micro water pump is installed in both the inlet pipes 103 and the outlet pipes 104; the first breeding area 1001, the second breeding area 1002, and the third breeding area 5002 are connected through the inlet pipes 103 and the outlet pipes 104; a sliding pipe 202 is slidably connected inside the outlet pipe 104; the lower end of the sliding pipe 202 passes through the partition plate 101 and is located in the second breeding area 1002; the second breeding area 1002 is fixedly connected to the partition plate 101. There are two electric push rods 201; the telescopic end of each electric push rod 201 is fixedly connected to the lower end of the corresponding sliding tube 202; four first water outlets 10401 are opened on the lower side of the water outlet pipe 104; four second water outlets 20202 are opened on the lower side of the sliding tube 202; four water inlets 20203 are opened on the upper side of the sliding tube 202; the second water outlets 20202 are located in the first breeding area 1001, and the first water outlets 10401 are connected to the corresponding second water outlets 20202; the water inlets 20203 are located in the second breeding area 1002; three intercepting nets 108 are installed in the third breeding area 5002.

[0037] The mesh size of the several interception nets 108 set up in the third breeding area 5002 gradually decreases from front to back.

[0038] Five breeding platforms partially cover breeding box 1.

[0039] It also includes a sliding component 4, a connecting frame 102, and a cleaning rod 105; the front and rear sides of the breeding box 1 are both fixedly connected to the sliding component 4, which consists of a slide rail and an electric slider; and the electric slider is fixedly connected to the breeding platform 5; the front and right sides of the first breeding area 1001 are both slidably connected to the connecting frame 102; the connecting frame 102 located on the front side is connected to the water inlet pipe 103; the connecting frame 102 located on the rear side is connected to the water outlet pipe 104; and the sliding pipe 202 passes through the corresponding connecting frame 102; six cleaning rods 105 are connected between the two connecting frames 102, the cleaning rods 105 are in contact with the bottom surface of the first breeding area 1001, and the lower side of the cleaning rods 105 is provided with bristles.

[0040] It also includes an interceptor plate 203, a fixing block 204, a funnel 205, and a filter cotton 206; a sliding groove 20201 is provided on the sliding pipe 202; a fixing block 204 is fixedly connected to the water outlet pipe 104; the fixing block 204 is located inside the sliding pipe 202 and slides in the sliding groove 20201; a filter cotton 206 is fixedly connected to the upper side of the fixing block 204; a funnel 205 is fixedly connected to the lower side of the fixing block 204; an interceptor plate 203 is fixedly connected to the sliding pipe 202, and the interceptor plate 203 is in contact with the outer surface of the funnel 205.

[0041] It also includes protrusions 106; several protrusions 106 are fixedly attached to the partition plate 101; the cleaning rod 105 and the corresponding connecting frame 102 are rotatably connected by a torsion spring.

[0042] First, workers raise fish with different diets or habits in the first aquaculture zone 1001; some fish prefer to live in the upper layer of the first aquaculture zone 1001, while others prefer to live in the middle or lower layer. Aquatic plants are raised in the aquaculture tank 5001, with their roots submerged in the third aquaculture zone 5002. Simultaneously, a pull-out plate 107 can be pulled out to raise filter-feeding organisms such as snails in the second aquaculture zone 1002. After the first aquaculture zone 1001 and the second aquaculture zone 1002 are separated by a partition plate 101, water from the first aquaculture zone 1001 will not flow into the second aquaculture zone 1002. Initially, the second outlet 20202 is located in the first aquaculture zone 1001, and the first outlet 10401 is located opposite the first outlet 20202. The second outlet 20202 is connected, and the inlet 20203 is located in the second aquaculture zone 1002. During aquaculture, the micro pumps in the inlet pipe 103 and outlet pipe 104 are in a timed-start state. It should be noted that the purpose of the timed start of the micro pumps is to provide nutrients for fish that feed on organic matter such as fish feces and fish food in the first aquaculture zone 1001, such as silver carp and bighead carp, through the fish feces produced by other fish. When the micro pumps start, water in the first aquaculture zone 1001 is drawn into the third aquaculture zone 5002 by the inlet pipe 103, and then discharged back into the first aquaculture zone 1001 through the outlet pipe 104. During this process, water flows from the third aquaculture zone 5002... 2. The water flows from front to back, and the inlet pipe 103 draws residual fish feces, fish food, and other organic matter from the bottom of the first aquaculture zone 1001 into the third aquaculture zone 5002. The fish feces and fish food are then intercepted by the interception net 108 in the third aquaculture zone 5002. The mesh size of the interception net 108 gradually decreases from front to back, thus filtering out organic impurities of different sizes in the water. This avoids the situation where only a single filter or multiple filters with uniform mesh sizes are used, where most organic impurities are concentrated in the area of ​​the first filter, resulting in uneven distribution of organic impurities in the third aquaculture zone 5002 and affecting nutrient absorption by aquatic plants. Simultaneously, the timed circulation of the aquaculture water and the interception net 108 in the first aquaculture zone... The first aquaculture zone 1001 filters out organic impurities such as fish feces and fish food from the aquaculture water, purifying the water quality. Residual fish feces and fish food are trapped in the third aquaculture zone 5002, significantly increasing the organic matter content and allowing aquatic plants to better absorb nutrients. Simultaneously, as water circulates through the third aquaculture zone 5002, the aquatic plants absorb carbon dioxide and release oxygen through photosynthesis, further improving water quality. Additionally, the electric rotating plate on the underside of the aquaculture platform 5 can be opened periodically to expose the aquatic plants to the first aquaculture zone 1001, providing herbivorous fish such as grass carp and bream with nutrients beyond their feed, promoting nutrient diversification.

[0043] It is important to note that the residual fish feces, fish food, and other organic matter at the bottom of the first aquaculture zone 1001 refers to the fish feces, fish food, and other organic matter that have not been eaten by the fish and remain in the first aquaculture zone 1001. If not treated, it will affect the overall water quality in the first aquaculture zone 1001, thereby indirectly affecting the fish raised at other levels in the first aquaculture zone 1001. At the same time, according to the feeding habits and habits of the fish raised in the first aquaculture zone 1001, multiple separating filter plates can be set up in the first aquaculture zone 1001 to separate fish with different feeding habits or habits. Fish feces, fish food, and other organic matter can be separated by the separating filter plates and sink down to the area where the fish can eat fish feces, fish food, and other organic matter, while the residual fish feces, fish food, and other organic matter will eventually sink to the bottom of the first aquaculture zone 1001.

[0044] Simultaneously, the five breeding platforms partially shade the breeding tank 1, thus providing both a sunlit area and a shaded area for the first breeding zone 1001. This allows the fish to receive sunlight, improving their health and promoting their growth and development. Different fish species can also swim into the sunlit or shaded areas as needed. Furthermore, the sliding component 4 moves the breeding platform 5 left and right, which in turn moves the connecting frame 102 and the cleaning rod 105 left and right. The cleaning rod 105 and its lower bristles then move away residual fish feces, fish food, and other organic impurities that have settled on the lower side of the first breeding zone 1001, allowing water to enter through the inlet pipe 103. During suction, residual fish feces, fish food, and other organic impurities are better removed. When the cleaning rod 105 moves left and right, it will contact the protrusion 106. At this time, the cleaning rod 105 is blocked and rotates. The torsion springs on the front and rear sides of the cleaning rod 105 contract. When the cleaning rod 105 passes the protrusion 106, the torsion springs on the front and rear sides of the cleaning rod 105 extend and return, thereby causing the cleaning rod 105 to swing left and right, further disturbing the fish feces, fish food, and other organic impurities settled on the lower side of the first aquaculture area 1001, causing them to float in the water, thereby improving the suction effect of the water inlet pipe 103 on residual fish feces, fish food, and other organic impurities.

[0045] During the circulation of aquaculture water within the first aquaculture zone 1001 and the third aquaculture zone 5002, although the intercepting net 108 can filter and intercept organic impurities such as fish feces and fish food, these impurities are easily dispersed and dissolved in the water as they flow. Therefore, the intercepting net 108 cannot intercept all organic impurities, and some will still flow into the outlet pipe 104 and eventually back into the first aquaculture zone 1001, affecting the water quality there. Figures 5-9As shown: In the initial state, the interceptor plate 203 is in contact with the outer surface of the funnel 205; at this time, the water flow in the third aquaculture zone 5002 will enter the sliding pipe 202 through the inlet 20203, and flow to the first aquaculture zone 1001 through the second outlet 20202 and the first outlet 10401, realizing water circulation. However, when the water flows to the filter cotton 206, it can only enter the funnel 205 through the filter cotton 206. During this process, the filter cotton 206 performs secondary filtration and interception of organic impurities and microorganisms in the water, improving water quality. The intercepted organic impurities will be washed to the upper side of the interceptor plate 203 by the water flow; then... Workers can periodically activate the electric push rod 201, which in turn retracts, causing the sliding tube 202 to slide downwards, thereby causing the interceptor plate 203 to slide downwards. During this process, the fixed block 204 moves upwards relative to the sliding groove 20201. Then, the interceptor plate 203 separates from the funnel 205, and simultaneously, the second outlet 20202 separates from the first outlet 10401. The second outlet 20202 enters the second aquaculture area 1002, and the outer wall of the sliding tube 202 seals the first outlet 10401. The inlet 20203 moves downwards into the first aquaculture area 1001. Then, the first outlet 10401... In a sealed state, the inlet 20203 is disconnected from the third aquaculture zone 5002, and the upper end of the sliding pipe 202 blocks the upper end of the outlet pipe 104. Then, the sliding pipe 202 connects to the second aquaculture zone 1002. At this time, the residual water in the sliding pipe 202 falls into the second aquaculture zone 1002, and at the same time, it carries the organic impurities intercepted by the filter cotton 206 and the intercepting plate 203 into the second aquaculture zone 1002, thereby providing food nutrients for filter-feeding organisms such as snails and river snails cultivated on the pull-out plate 107. Then, the electric push rod 201 will drive the sliding pipe 202 to move upward and reset, so that the aquaculture water returns to the first aquaculture zone 1001. The water enters a circulating state within the third aquaculture zone 5002. It should be noted that as water continuously flows into the second aquaculture zone 1002, excess water in the second aquaculture zone 1002 is discharged through the drain pipe 3, while the water supply pipe 2 replenishes water to the first aquaculture zone 1001. This method achieves complementarity and symbiosis among the aquaculture organisms in the first, second, and third aquaculture zones 1001, 1002, and 5002. The excrement and leftover food of various organisms can be utilized by other organisms, achieving multi-level utilization of nutrients, constructing a multi-trophic-level integrated aquaculture model, and realizing efficient resource utilization and sustainable environmental development.

[0046] Example 2

[0047] Based on Example 1, such as Figure 10 As shown, it also includes an aerator 207; the water supply pipe 2 is fixed to the left side for adding the aerator 207; the aerator 207 is located in the first breeding area 1001.

[0048] It also includes a temperature sensor 208; the temperature sensor 208 is fixedly attached to the lower rear side of the aerator 207.

[0049] It also includes a water quality detector 209; the water quality detector 209 is fixedly attached to the front side of the aerator 207.

[0050] A method for constructing and managing a multitrophic level aquaculture system, comprising the following specific steps:

[0051] Step 1: First, workers raise fish with different diets or habits in the first aquaculture area 1001; raise aquatic plants in the aquaculture tank 5001; and raise filter-feeding snails in the second aquaculture area 1002.

[0052] Step 2: The micro water pumps in the inlet pipe 103 and outlet pipe 104 are started at regular intervals to make the water flow in the first breeding area 1001 and the third breeding area 5002 at regular intervals. Then, the residual organic impurities in the first breeding area 1001 are intercepted in the third breeding area 5002 by the interception net 108. At the same time, the aquatic plants in the third breeding area 5002 absorb carbon dioxide and release oxygen in the water, thereby improving the water quality.

[0053] Step 3: The electric push rod 201 is retracted downward by the worker, which drives the sliding tube 202 to move down, thereby sending the organic impurities and microorganisms intercepted by the interception plate 203 and the filter cotton 206 into the second breeding area 1002 to provide nutrients for snail filter-feeding organisms;

[0054] Step 4: Start the aerator 207 to generate aeration, increase the oxygen content in the aquaculture water, improve the aquaculture effect, and promote fish growth; and use the temperature sensor 208 and water quality detector 209 to monitor the water conditions and adjust the aquaculture conditions to maintain system stability and optimize production.

[0055] The water level in the first aquaculture zone 1001 will be higher than that of the aerator 207, thereby generating aeration through the aerator 207, increasing the oxygen content in the aquaculture water, improving the aquaculture effect, and promoting fish growth. The water temperature in the first aquaculture zone 1001 is monitored in real time by the temperature sensor 208, and the water quality is monitored by the water quality detector 209. When abnormal water temperature or water quality occurs, the system will remind workers to adjust the water temperature and improve the water quality, and adjust the aquaculture conditions to maintain system stability and optimize production.

[0056] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. A multi-trophic-level aquaculture system, comprising: a culture tank (1), a culture platform (5), a partition plate (101), and a pull-out plate (107); the partition plate (101) is fixedly connected inside the culture tank (1); the partition plate (101) divides the interior of the culture tank (1) into a first culture zone (1001) and a second culture zone (1002); the culture platform (5) is connected to the upper part of the culture tank (1), and several culture troughs (5001) are opened on the culture platform (5), and a third culture zone (5002) is opened inside the culture platform (5); the lower side of the culture platform (5) is composed of two electric rotating plates; the pull-out plate (107) is slidably connected to the lower side of the culture tank (1); characterized in that: It also includes an inlet pipe (103), an outlet pipe (104), an electric push rod (201), a sliding pipe (202), and a net (108); several inlet pipes (103) are fixedly connected to the front side of the breeding platform (5); several outlet pipes (104) are fixedly connected to the rear side of the breeding platform (5); a sliding pipe (202) is slidably connected inside the outlet pipe (104); the lower end of the sliding pipe (202) passes through the partition plate (101) and is located in the second breeding area (1002); the second breeding area (1002) 2) Several electric push rods (201) are fixedly connected inside; the telescopic end of each electric push rod (201) is fixedly connected to the lower end of the corresponding sliding tube (202); several first water outlets (10401) are opened on the lower side of the water outlet pipe (104); several second water outlets (20202) are opened on the lower side of the sliding tube (202); several water inlets (20203) are opened on the upper side of the sliding tube (202); several interception nets (108) are set in the third breeding area (5002); The first breeding area (1001) has a connecting frame (102) slidably connected to both the front and rear sides; the connecting frame (102) on the front side is connected to the water inlet pipe (103); the connecting frame (102) on the rear side is connected to the water outlet pipe (104); and the sliding pipe (202) passes through the corresponding connecting frame (102). It also includes an interceptor plate (203), a fixing block (204), a funnel (205), and a filter cotton (206); a sliding groove (20201) is provided on the sliding pipe (202); a fixing block (204) is fixedly connected to the water outlet pipe (104); the fixing block (204) is located inside the sliding pipe (202), and the fixing block (204) slides in the sliding groove (20201); a filter cotton (206) for filtering organic matter and impurities is fixedly connected to the upper side of the fixing block (204); a funnel (205) is fixedly connected to the lower side of the fixing block (204); an interceptor plate (203) is fixedly connected to the sliding pipe (202), and the interceptor plate (203) is in contact with the outer surface of the funnel (205).

2. The multitrophic level aquaculture system according to claim 1, characterized in that: The mesh size of several interception nets (108) set up in the third aquaculture area (5002) gradually decreases from front to back.

3. The multitrophic level aquaculture system according to claim 1, characterized in that: The breeding platform (5) only partially covers the breeding box (1).

4. The multitrophic level aquaculture system according to claim 1, characterized in that: It also includes a sliding component (4); the front and rear sides of the breeding box (1) are fixed with sliding components (4); a number of cleaning rods (105) are connected between the two connecting frames (102), and the cleaning rods (105) are in contact with the bottom surface of the first breeding area (1001).

5. A multi-trophic level aquaculture system according to claim 4, characterized in that: It also includes protrusions (106); several protrusions (106) are fixed on the partition plate (101); the cleaning rod (105) and the corresponding connecting frame (102) are rotatably connected by a torsion spring.

6. A multitrophic level aquaculture system according to claim 4, characterized in that: It also includes an aerator (207); the left side of the breeding box (1) is fixed with an aerator (207); the aerator (207) is located in the first breeding area (1001).

7. A multitrophic level aquaculture system according to claim 6, characterized in that: It also includes a temperature sensor (208); a temperature sensor (208) for real-time water temperature detection is fixed to the lower rear part of the aerator (207).

8. A multitrophic level aquaculture system according to claim 7, characterized in that: It also includes a water quality detector (209); a water quality detector (209) for real-time water quality detection is fixedly attached to the lower front of the aerator (207).

9. A multitrophic level aquaculture system according to claim 8, characterized in that: A method for constructing and managing a multitrophic level aquaculture system, comprising the following specific steps: Step 1: First, workers raise fish with different diets or habits in the first aquaculture area (1001); raise aquatic plants in the aquaculture tank (5001); and raise filter-feeding snails in the second aquaculture area (1002). Step 2: The micro water pumps in the inlet pipe (103) and outlet pipe (104) are started at regular intervals to make the water flow in the first breeding area (1001) and the third breeding area (5002) circulate at regular intervals. Then, the residual organic impurities in the first breeding area (1001) are intercepted in the third breeding area (5002) by the interception net (108). At the same time, the aquatic plants in the third breeding area (5002) absorb carbon dioxide in the water and release oxygen, thereby improving the water quality. Step 3: The electric push rod (201) is retracted downward by the worker, which drives the sliding tube (202) to move down, thereby sending the organic impurities and microorganisms intercepted by the interception plate (203) and filter cotton (206) into the second breeding area (1002) to provide nutrients for snail filter-feeding organisms; Step 4: Start the aerator (207) to generate aeration, increase the oxygen content in the aquaculture water, improve the aquaculture effect, and promote fish growth; and use the temperature sensor (208) and water quality detector (209) to detect the water condition and adjust the aquaculture conditions to maintain the stability of the system and optimize the yield.

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