Method and device for preventing early-stage fry of salmon and trout from gathering

Abstract

The invention relates to the technical field of fish culture, in particular to a method and device for preventing early-stage fry of salmon and trout from gathering. The device comprises a culture pond and a density regulator arranged at the bottom of the culture pond, and the density regulator comprises a grid frame, a regulating partition plate and telescopic ribs; a plurality of water inlet pipes are arranged on the base of the culture pond and extend upwards from the grid frame; transparent side plates are arranged at the upper part of the culture pond; a cover plate is mounted at the tops of the transparent side plates; the density regulator realizes space regulation of horizontal growth of the fries by regulating the distance of the partition plates, the water inlet pipe introduces water flow from the density regulator to disturb the culture pond, hatched salmon and trout fries are guided to be uniformly distributed along the periphery of the density regulator, and early-stage salmon and trout fries are prevented from gathering. Through the comprehensive action of multiple aspects of space separation, water flow disturbance and guide, adjustment of the telescopic ribs, environment control and the like, early-stage fries of salmon and trout are prevented from gathering, and uniform distribution and growth of the fries are promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of fish breeding, and in particular to a method and a device for preventing early salmon and trout fry from gathering. Background Art

[0002] Salmon and trout are the main cold-water fish species targeted at the high-end market in my country. The current market demand exceeds 250,000 tons, but the output is only over 40,000 tons, leaving huge room for development. In order to significantly increase the breeding scale and survival rate of salmon and trout, a method for large-scale breeding of salmon and trout fry, such as the one disclosed in Chinese Patent Publication No. CN114568356A, has achieved large-scale production of salmon and trout from breeding to fry cultivation. However, the yolk sac of salmon and trout fry is absorbed slowly in the early stage. Before the fry float to the surface, they gather together, often suffering from hypoxia or easily causing disease infection due to the aggregation, which in turn affects the survival rate. Therefore, preventing the aggregation of fry is one of the key technologies for the successful breeding of salmon and trout. For example, Chinese patent publication number CN105432517A discloses a high-yield breeding method for Peruvian angelfish, which removes bad eggs during incubation and disperses the fry after hatching, greatly improving the hatching rate and emergence rate of Peruvian angelfish. However, this technical solution has shortcomings such as insufficient management, lack of means to guide distribution, lack of effective means to observe fish eggs, poor water quality filtration effect, and insufficiently intelligent disinfection treatment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a method and device for preventing early salmon and trout fry from gathering.

[0004] The technical solution adopted in the present invention is as follows: A device for preventing early salmon and trout fry from gathering, comprising a breeding pond and a density regulator arranged at the bottom of the breeding pond, wherein: The density regulator is installed on the base of the breeding pond to prevent the aggregation of early salmon and trout larvae. It includes a grid frame, adjustment baffles and telescopic ribs, including: The grid frame is a layered structure with equal intervals, and the upper and lower grid frames form a space for the early salmon and trout fry to lie horizontally and grow; the side of the grid frame is provided with a track; Adjust the partitions and move them up and down along the track of the grid frame to adjust the distance between the partitions; The telescopic ribs have two ends located at the upper and lower edges of the grid frame and can be extended and retracted relative to the grid frame to adjust the distance between the partitions. In addition, a number of water inlet pipes are provided on the base of the breeding pond, and the water inlet pipes extend upward from the grid frame; a transparent side panel is provided on the upper part of the breeding pond, and a cover is installed on the top of the transparent side panel; the density regulator adjusts the space for the fry to grow horizontally by adjusting the distance between the partitions, and the water inlet pipe introduces water flow from the density regulator to disturb the breeding pond, guiding the hatched salmon and trout fry to be evenly distributed along the periphery of the density regulator, thereby preventing the salmon and trout fry from gathering in the early stage.

[0005] This technical solution prevents the aggregation of early salmon and trout fry and promotes their evenly distributed growth through the comprehensive effects of spatial separation, water flow disturbance and guidance, adjustment of telescopic ribs, and environmental control. Specifically, the grid frame provides a layered structure, with spaces between the upper and lower layers forming a horizontal growth space for early salmon and trout larvae. Dynamic adjustment is achieved by adjusting the up and down movement of the baffles to disperse the larvae and prevent them from excessive aggregation. An inlet pipe introduces water from the bottom of the breeding pond and extends upward through the grid frame of the density regulator, generating water flow disturbance, which helps to propel the larvae and prevent them from remaining in one position for a long time. The guiding effect of the water flow causes the salmon and trout larvae to tend to distribute along the periphery of the density regulator. Changes in the direction and speed of the water flow cause the larvae to move with the water flow. Telescopic ribs are located on the upper and lower edges of the grid frame and can be extended and retracted relative to the grid frame, allowing the distance between the baffles to be quickly adjusted when needed to accommodate larvae at different growth stages or densities. Transparent side panels allow observation of the larvae in the breeding pond from the outside, facilitating monitoring and management. A cover is placed on the breeding pond when necessary to increase light regulation. The baffle distance and water flow disturbance are adjusted to adapt to the growth needs of larvae under different conditions, thereby improving breeding efficiency and larval survival rate.

[0006] In addition, the device for preventing early salmon and trout fry from gathering according to the present invention also has the following additional technical features: According to one embodiment of the present invention, a sensor assembly is provided on the periphery of the density regulator, and the sensor assembly includes a temperature sensor, a pressure sensor, and a dissolved oxygen sensor, wherein: Temperature sensor, used to detect the water temperature of the breeding pond and ensure that the temperature is controlled within the range of 8℃-12℃; A pressure sensor is used to detect the water pressure in the aquaculture pond. The water pressure in the aquaculture pond can be increased by adding a cover plate on top of the aquaculture pond. The dissolved oxygen sensor is used to detect the dissolved oxygen content in the breeding pond. By adjusting the flow rate of the water inlet pipe, the speed of the disturbed air is changed to prevent salmon and trout fry from suffocating and dying due to lack of oxygen.

[0007] This technical solution provides a stable and suitable environment for salmon and trout larvae by monitoring and adjusting the water temperature, water pressure, and dissolved oxygen content in the fry pond in real time, thereby improving their survival rate. Specifically, the system detects water temperature and feeds this data back to the control system, which adjusts the water temperature as needed (e.g., through heating or cooling equipment) to ensure that the water temperature remains within the optimal temperature range for fry (8°C-12°C). The system also artificially increases water pressure by adding a cover to the top of the fry pond, simulating the deep-water pressure found in natural environments. Furthermore, the system increases the dissolved oxygen content in the water by adjusting the flow rate at the water inlet, preventing salmon and trout larvae from suffocation due to lack of oxygen.

[0008] According to one embodiment of the present invention, the water inlet pipe is arranged in a columnar shape, and a filter element is arranged on the top of the water inlet pipe for filtering the water flow discharged from the water inlet pipe.

[0009] This technical solution filters the water entering the breeding pond by setting up a filter element to ensure the cleanliness of the water quality, thereby maintaining the stability of the breeding environment and improving breeding efficiency.

[0010] According to one embodiment of the present invention, the water inlet pipe is connected to an external water inlet pipe, and the water flows slowly through the periphery of the density regulator after being filtered by the filter element.

[0011] In this technical solution, after being filtered by the filter element, the water flows slowly through the periphery of the density regulator. The slowly flowing water is used to reduce the stress response of the fry and improve their survival rate. The water introduced through the water inlet flows slowly along the periphery of the density regulator under the guidance of the density regulator, guiding the fry to various areas of the breeding pond, preventing them from gathering in one place, and ensuring the cleanliness and stability of the breeding water quality.

[0012] According to one embodiment of the present invention, the filter element comprises a body, a filter screen and a rotating plate, wherein: The main body is in the shape of a hollow column and is used to be sleeved on the top of the water inlet pipe; The filter is located on the top of the main body and has several mesh openings for filtering the water flow from the water inlet pipe to prevent impurities in the water flow from affecting the survival rate of seedling cultivation; The rotating plate is arranged in the shape of fan blades with equal intervals, and the blades are perpendicular to each other; when water flows through, the blades of the rotating plate are driven to rotate, disturbing the air to enter the water flow and increase the dissolved oxygen content in the breeding pond.

[0013] This technical solution achieves water filtration, air introduction, and water disturbance through the synergistic effect of a hollow cylindrical body, a filter, and a rotating plate, providing a more suitable growth environment for salmon and trout larvae. As water passes through, it impacts the blades of the rotating plate, generating a torque that rotates the blades, increasing water disturbance and helping to introduce air. The filter is located at the top of the body, with mesh openings that allow water to pass through but block impurities in the water, ensuring clean water entering the aquaculture pond and preventing impurities from adversely affecting the growth of salmon and trout larvae.

[0014] To achieve the above object, the present invention also provides a method for preventing early salmon and trout fry from gathering.

[0015] A method for preventing early salmon and trout fry from gathering, comprising the following steps: S1. Installation of the device: S11. Install the density regulator: fix the mounting base of the density regulator to the bottom of the culture pond; adjust the telescopic length of the telescopic ribs and set the initial size of the grid frame; move the adjustment partition along the track of the grid frame and set the distance between the adjustment partitions; S12. Install the water inlet pipe and filter element: Install the water inlet pipe at the bottom of the aquaculture pond, ensuring that the water inlet pipe extends upward from the grid frame; sleeve the main body of the filter element onto the top of the water inlet pipe; install the filter screen, and ensure that the filter screen is intact and the mesh opening is unobstructed; S13. Install transparent side panels and cover panels: Install transparent side panels on the upper part of the culture pond and install cover panels on top of the transparent side panels to ensure the closedness of the culture environment; S14. Install the sensor assembly: Install the temperature sensor, pressure sensor, and dissolved oxygen sensor around the density regulator; connect the sensor assembly to the control system to ensure normal data transmission; S2, water injection process: S21. Inject water and filter: Open the water inlet pipe and inject water into the culture pond; the water flows through the filter screen of the filter element to filter out impurities; the filtered water slowly flows through the periphery of the density regulator; S22. Increase dissolved oxygen: When water flows through the filter element, the blades of the rotating plate rotate under the action of the water flow; the rotating blades disturb the air, allowing air to enter the water flow, increasing the dissolved oxygen content in the breeding pond; S23. Environmental parameter monitoring and adjustment: The sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the control system automatically adjusts the flow rate of the water inlet pipe based on the received data; S3. Distribution of larvae: S31. Larvae distribution: Early salmon and trout larvae lie horizontally in the density regulator. The larvae are disturbed by the water flow introduced by the inlet pipe and are evenly distributed along the circumference of the density regulator. S32. Using a grid frame and adjustable baffles: The grid frame and the adjustable baffles provide space for the fry to lie horizontally and grow; the fry are dispersed on the grid frame and the adjustable baffles; S4. Environmental monitoring and regulation: S41. Real-time monitoring of environmental parameters: The sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the sensor transmits the data to the control system in real time; S42. Automatically adjust the breeding environment: The control system determines whether the breeding environment needs to be adjusted based on the received data; if adjustment is required, the control system automatically adjusts the breeding environment by adjusting the flow rate of the water inlet pipe; S5. Management and maintenance: S51. Regular inspection and maintenance: Regularly check whether all parts of the device are operating normally; if there is any fault or damage, repair or replace it in time; S52, adjusting the spacer distance and the telescopic ribs: adjusting the spacer distance of the density regulator in a timely manner according to the growth of the fry; adjusting the telescopic length of the telescopic ribs as needed to meet the growth needs of the fry; S53. Replace the filter element: Replace the filter element regularly to ensure the filtering effect.

[0016] This technical solution aims to ensure clean water quality within the aquaculture pond and achieve uniform distribution and growth of the larvae by preventing early aggregation of salmon and trout larvae. Initial setup begins with the installation of a density regulator, inlet pipe and filter element, transparent side panels and cover, and sensor assembly. During the water injection process, filtered water is injected and the dissolved oxygen content is increased, providing a high-quality growth environment for the larvae. As the larvae swim within the aquaculture pond, they are disturbed by the water flow introduced by the inlet pipe, distributing them evenly along the perimeter of the density regulator. An environmental monitoring and control system monitors aquaculture environmental parameters in real time and automatically adjusts the environment to ensure its suitability. Management and maintenance measures ensure the normal operation of the device, adjusting the baffle distance and telescopic rib length, and replacing the filter element and disinfectant as appropriate to meet the growth needs of the larvae.

[0017] According to one embodiment of the present invention, the method further comprises the following steps: S6. Cleaning and maintenance: S61. Check the cleanliness of the filter element regularly. If it is clogged or dirty, it needs to be cleaned or replaced. S62. Regularly check the accuracy of sensor components and perform calibration or repairs; S63. Regularly clean the aquaculture pond to keep the water clean; S7. Water Quality Management: S71. Monitor the water quality parameters of the breeding pond, including pH, ammonia nitrogen, and nitrite, to ensure that the water quality is suitable for the growth of salmon and trout fry; S72. According to the water quality monitoring results, add water quality regulators, pH regulators, and nitrifying bacteria in a timely manner to improve water quality; S73. Regularly replace part of the water in the aquaculture pond to keep the water clean; S8. Data recording and analysis: S81. Record various data, including water temperature, water pressure, dissolved oxygen content, and water quality parameters; S82. Analyze data regularly to evaluate breeding results and identify existing problems and areas for improvement; S83. Adjust breeding strategies and management measures based on data analysis results to optimize the breeding process.

[0018] This technical solution ensures the proper functioning of aquaculture equipment through cleaning and maintenance steps (S6). The cleanliness and accuracy of filter elements and sensor components are crucial to a stable aquaculture environment. Through water quality management steps (S7), the water quality in the aquaculture ponds is ensured to meet the growth requirements of salmon and trout larvae. By monitoring water quality parameters, adding water conditioners, and regularly replacing the water, the water is kept clean, providing optimal growth conditions for the larvae. Through data recording and analysis steps (S8), the aquaculture process is comprehensively monitored and evaluated. Various data from the aquaculture process are recorded and regularly analyzed to assess aquaculture results, identify existing problems, and identify areas for improvement. Based on the results of this data analysis, aquaculture strategies and management measures are adjusted to optimize the aquaculture process and increase the survival rate of the larvae.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the combined effects of spatial separation, water flow disturbance and guidance, adjustment of telescopic ribs, and environmental control, it prevents the aggregation of early salmon and trout larvae and promotes their uniform distribution and growth; (2) Dynamic adjustment by adjusting the up and down movement of the partition to disperse the fry and prevent excessive aggregation; (3) The water inlet pipe introduces water from the bottom of the breeding pond and extends upward through the grid frame of the density regulator, generating water flow disturbance, which helps to push the fry and prevent them from staying in one place for a long time; (4) The filter is set on the top of the body. The mesh opening on it allows water to flow through, but can block impurities in the water flow, ensuring that the water flow entering the breeding pond is clean and preventing impurities from having adverse effects on the growth of salmon and trout fry; (5) The temperature sensor, pressure sensor and dissolved oxygen sensor are connected to each other. When abnormal temperature, pressure or dissolved oxygen is detected, the breeding environment is automatically adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the device of the present invention.

[0021] Figure 2 It is a structural diagram of the density regulator.

[0022] Figure 3 It is a structural diagram of the water inlet pipe.

[0023] Figure 4 It is one of the structural diagrams of the filter element.

[0024] Figure 5 This is the second structural diagram of the filter element.

[0025] Figure 6 It is a flowchart of the method of the present invention.

[0026] In the figure: 1. cover plate; 2. transparent side panel; 3. density regulator; 31. grid frame; 32. adjustment partition; 33. telescopic rib; 4. base; 5. water inlet pipe; 51. body; 52. filter screen; 53. rotating plate. DETAILED DESCRIPTION

[0027] 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 them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Example 1 like Figure 1 As shown, this embodiment provides a device for preventing early salmon and trout fry from gathering, including a breeding pond and a density regulator 3 arranged at the bottom of the breeding pond.

[0029] like Figure 2 As shown, the density regulator 3 is installed on the base 4 of the breeding pond to prevent the early salmon and trout fry from gathering. It includes a grid frame 31, an adjustment partition 32 and a telescopic rib 33, wherein: The grid frame 31 is a layered structure with equal intervals between the upper and lower grid frames 31, forming a space for the early salmon and trout fry to lie horizontally and grow; the side of the grid frame 31 is provided with a track; The adjusting partition 32 moves up and down along the track of the grid frame 31 to adjust the distance of the adjusting partition 32; The telescopic rib 33 has two ends located at the upper and lower edges of the grid frame 31 respectively, and is telescopic relative to the grid frame 31 to adjust the distance between the partitions 32.

[0030] like Figure 3As shown, a plurality of water inlet pipes 5 are provided on the base 4 of the breeding pond, and the water inlet pipes 5 extend upward from the grid frame 31; a transparent side panel 2 is provided on the upper part of the breeding pond, and a cover plate 1 is installed on the top of the transparent side panel 2; the density regulator 3 adjusts the space for the fry to grow horizontally by adjusting the distance of the partition 32, and the water inlet pipe 5 introduces water from the density regulator 3 to disturb the breeding pond, guiding the hatched salmon and trout fry to be evenly distributed along the periphery of the density regulator 3, thereby preventing the salmon and trout fry from gathering in the early stage.

[0031] This technical solution prevents the early salmon and trout fry from gathering and promotes their evenly distributed growth through the combined effects of spatial separation, water flow disturbance and guidance, adjustment of the telescopic ribs 33, and environmental control. Specifically, the grid frame 31 provides a layered structure, and the space between the upper and lower layered structures forms a space for the early salmon and trout fry to lie down and grow; dynamic adjustment is performed by adjusting the up and down movement of the partition 32 to disperse the fry and prevent them from excessively gathering; the water inlet pipe 5 introduces water from the bottom of the breeding pond, extends upward through the grid frame 31 of the density regulator 3, generates water flow disturbance, helps to push the fry, and prevents them from staying in a certain position for a long time; the guiding effect of the water flow makes the salmon and trout fry tend to be distributed along the periphery of the density regulator 3, and the direction and speed of the water flow change. The fry are moved along with the water flow; the telescopic ribs 33 are located at the upper and lower edges of the grid frame 31 and can be telescoped relative to the grid frame 31, so that the distance between the partitions can be quickly adjusted when necessary to accommodate fry at different growth stages or densities; the transparent side panels 2 allow the fry in the breeding pond to be observed from the outside, facilitating monitoring and management; the cover 1 is covered on the breeding pond when necessary to increase light adjustment; by adjusting the distance between the partitions 32 and the water flow disturbance, the growth needs of fry under different conditions can be adapted to improve breeding efficiency and fry survival rate.

[0032] In addition, the device for preventing early salmon and trout fry from gathering according to the present invention also has the following additional technical features: According to one embodiment of the present invention, a sensor assembly is provided on the periphery of the density regulator 3, and the sensor assembly includes a temperature sensor, a pressure sensor, and a dissolved oxygen sensor, wherein: Temperature sensor, used to detect the water temperature of the breeding pond and ensure that the temperature is controlled within the range of 8℃-12℃; A pressure sensor is used to detect the water pressure of the breeding pond. The water pressure of the breeding pond is increased by adding a cover plate 1 on the top of the breeding pond. The dissolved oxygen sensor is used to detect the dissolved oxygen content in the breeding pond. By adjusting the flow rate of the water inlet pipe 5, the speed of the disturbed air is changed to prevent the salmon and trout fry from suffocating and dying due to lack of oxygen.

[0033] This technical solution provides a stable and suitable environment for salmon and trout larvae by real-time monitoring and adjusting the water temperature, water pressure, and dissolved oxygen content in the fry pond, thereby improving the survival rate of the larvae. Specifically, by detecting the water temperature and feeding the data back to the control system, the control system adjusts the water temperature as needed (such as through heating or cooling equipment) to ensure that the water temperature always remains within the optimal temperature range for the fry (8°C-12°C). By adding a cover plate 1 to the top of the breeding pond, the water pressure is artificially increased to simulate the deep-water pressure in the natural environment. By adjusting the flow rate of the water inlet, the dissolved oxygen content in the water is increased to prevent the salmon and trout larvae from suffocation due to lack of oxygen.

[0034] like Figure 3 As shown, the water inlet pipe 5 is arranged in a columnar shape, and a filter element is arranged on the top of the water inlet pipe 5 for filtering the water flow discharged from the water inlet pipe 5.

[0035] This technical solution filters the water entering the breeding pond by setting up a filter element to ensure the cleanliness of the water quality, thereby maintaining the stability of the breeding environment and improving breeding efficiency.

[0036] According to one embodiment of the present invention, the water inlet pipe 5 is externally connected to the water inlet pipe 5 , and the water flows slowly through the periphery of the density regulator 3 after being filtered by the filter element.

[0037] In this technical solution, after being filtered by the filter element, the water flows slowly through the periphery of the density regulator 3. The slowly flowing water is used to reduce the stress response of the fry and improve their survival rate; the water introduced through the water inlet flows slowly along the periphery under the guidance of the density regulator 3, guiding the fry to various areas of the breeding pond, preventing them from gathering in a certain place, and ensuring the cleanliness and stability of the breeding water quality.

[0038] like Figure 4 and Figure 5 As shown, the filter element includes a body 51, a filter screen 52 and a rotating plate 53, wherein: The main body 51 is in the shape of a hollow column and is used to be sleeved on the top of the water inlet pipe 5; The filter 52 is provided on the top of the body 51 and has a plurality of mesh openings for filtering the water flow of the water inlet pipe 5 to prevent impurities in the water flow from affecting the survival rate of the seedling cultivation; The rotating plate 53 is arranged in a fan-like shape with equal intervals, and the blades are perpendicular to each other; when water flows through, the blades of the rotating plate 53 are driven to rotate, disturbing air to enter the water flow and increase the dissolved oxygen content in the breeding pond.

[0039] This technical solution achieves functions such as water filtration, air introduction, and water disturbance through the coordinated action of the hollow cylindrical body 51, the filter 52, and the rotating plate 53, providing a more suitable growth environment for salmon and trout larvae. As the water passes through, it impacts the blades of the rotating plate 53, generating a torque that rotates the blades, increasing the disturbance of the water flow and helping to introduce air into the water flow. The filter 52 is located at the top of the body 51, with its mesh openings allowing water to pass through but blocking impurities in the water flow, ensuring that the water entering the aquaculture pond is clean and preventing impurities from adversely affecting the growth of salmon and trout larvae.

[0040] Example 2 Based on Example 1, Figure 6 As shown, this embodiment provides a method for preventing early salmon and trout fry from gathering, comprising the following steps: S1. Installation of the device: S11. Install the density regulator 3: Fix the mounting base of the density regulator 3 to the bottom of the culture pond; adjust the telescopic length of the telescopic ribs 33 to set the initial size of the grid frame 31; move the adjustment partition 32 along the track of the grid frame 31 to set the distance between the adjustment partitions 32; S12. Install the water inlet pipe 5 and filter element: Install the water inlet pipe 5 at the bottom of the aquaculture pond, ensuring that the water inlet pipe 5 extends upward from the grid frame 31; sleeve the filter element body 51 on the top of the water inlet pipe 5; install the filter screen 52, and ensure that the filter screen 52 is intact and the mesh opening is unobstructed; S13, installing transparent side panels 2 and cover panel 1: Install transparent side panels 2 on the upper part of the breeding pond, and install cover panel 1 on top of the transparent side panels 2 to ensure the closedness of the breeding environment; S14, install the sensor assembly: install the temperature sensor, pressure sensor and dissolved oxygen sensor on the periphery of the density regulator 3; connect the sensor assembly to the control system to ensure normal data transmission; S2, water injection process: S21, inject water and filter: open the water inlet pipe 5, inject water into the breeding pond; the water flows through the filter 52 of the filter element to filter out impurities; the filtered water slowly flows through the periphery of the density regulator 3; S22. Increase dissolved oxygen: When water flows through the filter element, the blades of the rotating plate 53 rotate under the action of the water flow; the rotating blades disturb the air, allowing air to enter the water flow, thereby increasing the dissolved oxygen content in the aquaculture pond; S23, environmental parameter monitoring and adjustment: the sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the control system automatically adjusts the flow rate of the water inlet pipe 5 based on the received data; S3. Distribution of larvae: S31, larval distribution: Early salmon and trout larvae lie horizontally in the density regulator 3; the larvae are disturbed by the water flow introduced by the water inlet pipe 5 and are evenly distributed along the periphery of the density regulator 3; S32, using the grid frame 31 and the adjustable baffle 32: the grid frame 31 and the adjustable baffle 32 provide space for the fry to lie down and grow; the fry are dispersed on the grid frame 31 and the adjustable baffle 32; S4. Environmental monitoring and regulation: S41. Real-time monitoring of environmental parameters: The sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the sensor transmits the data to the control system in real time; S42, automatically adjust the breeding environment: the control system determines whether the breeding environment needs to be adjusted based on the received data; if adjustment is required, the control system automatically adjusts the breeding environment by adjusting the flow rate of the water inlet pipe 5; S5. Management and maintenance: S51. Regular inspection and maintenance: Regularly check whether all parts of the device are operating normally; if there is any fault or damage, repair or replace it in time; S52, adjusting the spacer distance and the telescopic rib 33: according to the growth of the fry, timely adjusting the spacer distance of the density regulator 3; as needed, adjusting the telescopic length of the telescopic rib 33, to adapt to the growth requirements of the fry; S53. Replace the filter element: Replace the filter element regularly to ensure the filtering effect.

[0041] This technical solution aims to ensure clean water quality within the aquaculture pond and achieve uniform distribution and growth of the larvae by preventing early aggregation of salmon and trout larvae. Initial setup begins with the installation of the density regulator 3, water inlet pipe 5, filter element, transparent side panel 2, cover plate 1, and sensor assembly. During the water injection process, filtered water is injected and the dissolved oxygen content is increased, providing a high-quality growth environment for the larvae. As the larvae swim within the aquaculture pond, they are disturbed by the water flow introduced by the water inlet pipe 5, distributing themselves evenly along the perimeter of the density regulator 3. An environmental monitoring and control system monitors aquaculture environmental parameters in real time and automatically adjusts the environment to ensure its suitability. Management and maintenance measures ensure the proper operation of the device, adjusting the baffle distance and the length of the telescopic ribs 33 as needed, and replacing the filter element and disinfectant to meet the growth needs of the larvae.

[0042] According to one embodiment of the present invention, the method further comprises the following steps: S6. Cleaning and maintenance: S61. Check the cleanliness of the filter element regularly. If it is clogged or dirty, it needs to be cleaned or replaced. S62. Regularly check the accuracy of sensor components and perform calibration or repairs; S63. Regularly clean the aquaculture pond to keep the water clean; S7. Water Quality Management: S71. Monitor the water quality parameters of the breeding pond, including pH, ammonia nitrogen, and nitrite, to ensure that the water quality is suitable for the growth of salmon and trout fry; S72. According to the water quality monitoring results, add water quality regulators, pH regulators, and nitrifying bacteria in a timely manner to improve water quality; S73. Regularly replace part of the water in the aquaculture pond to keep the water clean; S8. Data recording and analysis: S81. Record various data, including water temperature, water pressure, dissolved oxygen content, and water quality parameters; S82. Analyze data regularly to evaluate breeding results and identify existing problems and areas for improvement; S83. Adjust breeding strategies and management measures based on data analysis results to optimize the breeding process.

[0043] This technical solution ensures the proper functioning of aquaculture equipment through cleaning and maintenance steps (S6). The cleanliness and accuracy of filter elements and sensor components are crucial to a stable aquaculture environment. Through water quality management steps (S7), the water quality in the aquaculture ponds is ensured to meet the growth requirements of salmon and trout larvae. By monitoring water quality parameters, adding water conditioners, and regularly replacing the water, the water is kept clean, providing optimal growth conditions for the larvae. Through data recording and analysis steps (S8), the aquaculture process is comprehensively monitored and evaluated. Various data from the aquaculture process are recorded and regularly analyzed to assess aquaculture results, identify existing problems, and identify areas for improvement. Based on the results of this data analysis, aquaculture strategies and management measures are adjusted to optimize the aquaculture process and increase the survival rate of the larvae.

Claims

1. A device for preventing early salmon and trout fry from gathering, characterized by: The invention comprises a breeding pond and a density regulator (3) arranged at the bottom of the breeding pond, wherein: The density regulator (3) is installed on the base (4) of the culture pond and is used to prevent the early salmon and trout fry from gathering. It includes a grid frame (31), an adjustment partition (32) and a telescopic rib (33), wherein: The grid frame (31) is a layered structure arranged at equal intervals in a net-like manner, and a space for the early salmon and trout fry to lie horizontally and grow is formed between the upper and lower grid frames (31); the side of the grid frame (31) is provided with a track; The regulating partition (32) moves up and down along the track of the grid frame (31) to adjust the distance of the regulating partition (32); The telescopic rib (33) has two ends respectively located at the upper and lower edges of the grid frame (31) and is capable of telescoping relative to the grid frame (31) to adjust the distance between the partitions (32); In addition, a plurality of water inlet pipes (5) are provided on the base (4) of the culture pond, and the water inlet pipes (5) extend upward from the grid frame (31); a transparent side panel (2) is provided on the upper part of the culture pond, and a cover plate (1) is installed on the top of the transparent side panel (2); a density regulator (3) adjusts the space for the fry to grow horizontally by adjusting the distance of the partition (32); the water inlet pipe (5) is introduced from the density regulator (3) to disturb the culture pond, thereby guiding the hatched salmon and trout fry to be evenly distributed along the periphery of the density regulator (3), and preventing the salmon and trout fry from gathering in the early stage.

2. The device for preventing early salmon and trout fry from gathering according to claim 1, characterized in that: The periphery of the density regulator (3) is provided with a sensor assembly, which includes a temperature sensor, a pressure sensor, and a dissolved oxygen sensor, wherein: Temperature sensor, used to detect the water temperature of the breeding pond and ensure that the temperature is controlled within the range of 8℃-12℃; A pressure sensor is used to detect the water pressure of the breeding pond, and the water pressure of the breeding pond is increased by adding a cover plate (1) on the top of the breeding pond; The dissolved oxygen sensor is used to detect the dissolved oxygen content in the breeding pond and to change the speed of the disturbed air by adjusting the flow rate of the water inlet pipe (5) to prevent the salmon and trout fry from suffocating and dying due to lack of oxygen.

3. The device for preventing early salmon and trout fry from gathering according to claim 1, characterized in that: The water inlet pipe (5) is arranged in a columnar shape, and a filter element is arranged on the top of the water inlet pipe (5) for filtering the water flow discharged from the water inlet pipe (5).

4. The device for preventing early salmon and trout fry from gathering according to claim 1 or 3, characterized in that: The water inlet pipe (5) is externally connected to the water inlet pipe (5), and the water flows slowly through the periphery of the density regulator (3) after being filtered by the filter element.

5. The device for preventing early salmon and trout fry from gathering according to claim 4, characterized in that: The filter element comprises a body (51), a filter screen (52) and a rotating plate (53), wherein: The main body (51) is in the shape of a hollow column and is used to be sleeved on the top of the water inlet pipe (5); The filter (52) is arranged on the top of the body (51) and is provided with a plurality of mesh openings for filtering the water flow of the water inlet pipe (5) to prevent impurities in the water flow from affecting the survival rate of seedling cultivation; The rotating plate (53) is arranged in a fan-like shape with equal intervals, and the blades are perpendicular to each other; when water flows through, the blades of the rotating plate (53) are driven to rotate, disturbing air to enter the water flow and increase the dissolved oxygen content of the breeding pond.

6. A method for preventing early salmon and trout larvae from gathering, comprising: using the device for preventing early salmon and trout larvae from gathering according to any one of claims 1 to 5, characterized in that: The steps include: S1. Installation of the device: S11, installing the density regulator (3): fixing the mounting base of the density regulator (3) to the bottom of the culture pond; adjusting the telescopic length of the telescopic rib (33) to set the initial size of the grid frame (31); moving the regulating baffle (32) along the track of the grid frame (31) to set the distance between the regulating baffles (32); S12, installing the water inlet pipe (5) and the filter element: installing the water inlet pipe (5) at the bottom of the culture pond, ensuring that the water inlet pipe (5) extends upward from the grid frame (31); sleeve the body (51) of the filter element on the top of the water inlet pipe (5); installing the filter screen (52), and ensuring that the filter screen (52) is intact and the mesh opening is unobstructed; S13, installing the transparent side panels (2) and the cover panel (1): installing the transparent side panels (2) on the upper part of the culture pond, and installing the cover panel (1) on the top of the transparent side panels (2) to ensure the closedness of the culture environment; S14, installing the sensor assembly: installing a temperature sensor, a pressure sensor, and a dissolved oxygen sensor on the periphery of the density regulator (3); connecting the sensor assembly to the control system to ensure normal data transmission; S2, water injection process: S21, injecting water and filtering: Open the water inlet pipe (5) and inject water into the culture pond; the water flows through the filter screen (52) of the filter element to filter out impurities; the filtered water flows slowly through the periphery of the density regulator (3); S22, increasing dissolved oxygen: When water flows through the filter element, the blades of the rotating plate (53) rotate under the action of the water flow; the rotating blades disturb the air, allowing air to enter the water flow, thereby increasing the dissolved oxygen content in the aquaculture pond; S23, environmental parameter monitoring and adjustment: the sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the control system automatically adjusts the flow rate of the water inlet pipe (5) based on the received data; S3. Distribution of larvae: S31. Fish larvae distribution: Early salmon and trout fish larvae lie horizontally in the density regulator (3); the fish larvae are disturbed by the water flow introduced by the water inlet pipe (5) and are evenly distributed along the periphery of the density regulator (3); S32, using a grid frame (31) and an adjusting baffle (32): the grid frame (31) and the adjusting baffle (32) provide a space for the fry to lie down and grow; the fry are dispersed on the grid frame (31) and the adjusting baffle (32); S4. Environmental monitoring and regulation: S41. Real-time monitoring of environmental parameters: The sensor component monitors the water temperature, water pressure and dissolved oxygen content of the aquaculture pond in real time; the sensor transmits the data to the control system in real time; S42, automatically adjusting the breeding environment: the control system determines whether the breeding environment needs to be adjusted based on the received data; if adjustment is required, the control system automatically adjusts the breeding environment by adjusting the flow rate of the water inlet pipe (5); S5. Management and maintenance: S51. Regular inspection and maintenance: Regularly check whether all parts of the device are operating normally; if there is any fault or damage, repair or replace it in time; S52, adjusting the spacer distance and the telescopic rib (33): according to the growth of the fry, timely adjusting the spacer distance of the density regulator (3); as needed, adjusting the telescopic length of the telescopic rib (33) to adapt to the growth requirements of the fry; S53. Replace the filter element: Replace the filter element regularly to ensure the filtering effect.

7. The method for preventing early salmon and trout fry from gathering according to claim 6, characterized in that: The method further comprises the steps of: S6. Cleaning and maintenance: S61. Check the cleanliness of the filter element regularly. If it is clogged or dirty, it needs to be cleaned or replaced. S62. Regularly check the accuracy of sensor components and perform calibration or repairs; S63. Regularly clean the aquaculture pond to keep the water clean; S7. Water Quality Management: S71. Monitor the water quality parameters of the breeding pond, including pH, ammonia nitrogen, and nitrite, to ensure that the water quality is suitable for the growth of salmon and trout fry; S72. According to the water quality monitoring results, add water quality regulators, pH regulators, and nitrifying bacteria in a timely manner to improve water quality; S73. Regularly replace part of the water in the aquaculture pond to keep the water clean; S8. Data recording and analysis: S81. Record various data, including water temperature, water pressure, dissolved oxygen content, and water quality parameters; S82. Analyze data regularly to evaluate breeding results and identify existing problems and areas for improvement; S83. Adjust breeding strategies and management measures based on data analysis results to optimize the breeding process.

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