Hairtail breeding method and breeding device thereof

Abstract

The invention discloses a hairtail breeding method and a hairtail breeding device, and belongs to the field of aquaculture, and the hairtail breeding device comprises a buoy, a net cage, a bait recovery system and a pressure regulation and control system. The buoy is hung on the net cage at the water depth of 20-40 meters through a plurality of ropes, the bottom of the net cage is connected with the funnel device and the recovery pipe, the left branch is provided with the filter screen connected with the bait collector, and the right branch is connected with the decompression chamber. The bait stacking height is monitored through double cameras, and a computer is matched to control an induction valve to achieve automatic bait recovery and mature hairtail fishing. A gradual pressure adjusting system is adopted in the decompression chamber, pressure is gradually reduced to normal pressure within 30 minutes through cooperative control of a monitoring ship winch and a fixed pulley, and the survival rate of the hairtail is guaranteed in cooperation with a synchronous lifting device. The top of the net cage is provided with a central feeding pipe, and a safe bait layer is reserved at the bottom. The device effectively simulates the natural habitat of hairtail, realizes bait cyclic utilization, intelligent water quality maintenance and lossless recovery of living hairtail, and comprehensively improves the breeding efficiency and the product quality.

Description

Technical Field

[0001] The invention relates to the field of aquaculture, and in particular to a hairtail breeding method and a breeding device thereof. Background Art

[0002] Hairtail is an important economic fish, widely distributed in temperate and tropical waters around the world, and its aquaculture has gradually received attention in recent years. However, the existing hairtail aquaculture methods mainly rely on traditional cage farming, which has problems such as difficulty in water quality control, inefficient bait management, and serious damage to hairtail fishing. Traditional aquaculture cages are often affected by the marine environment. Water currents and wind and waves may cause the cages to tilt or drift, making the aquaculture environment unstable. In addition, due to the activity habits of hairtail, its food intake and distribution are greatly affected by factors such as seawater flow rate and temperature. If the feeding management is improper, the bait is easy to deposit at the bottom of the cage, causing water quality deterioration and increasing the risk of disease, thereby affecting the growth and survival rate of hairtail.

[0003] On the other hand, there are many technical difficulties in hairtail fishing. Since hairtail mainly lives in deeper waters, it is more sensitive to environmental pressure changes. Traditional fishing methods are often unable to gradually adjust the pressure changes during the hairtail recovery process, which easily causes hairtail to be damaged or even die due to a sudden drop in pressure. In addition, during the recovery process, hairtail and bait are easily mixed and difficult to be separated efficiently, further increasing the complexity of the recovery operation. Therefore, how to achieve efficient bait management and water quality control during the breeding process, and provide a gentle recovery method after the hairtail matures, so as to improve the survival rate and breeding efficiency of hairtail, is a problem to be solved in the current technical field. In recent years, some personnel have also been studying the device technology in this regard, such as the patent US20040123809A1, but it still has room for improvement in structure. Summary of the invention

[0004] The present invention aims to provide a method and a breeding device for hairtail fish, so as to optimize the breeding environment, improve the bait recovery rate, reduce water pollution, and improve the catching efficiency and survival rate of hairtail fish.

[0005] A method and a culture device for hairtail fish, comprising a buoy, a rope connected to the bottom of the buoy, a net cage suspended below the rope, a funnel below the net cage, a recovery pipe connected to the bottom of the funnel, the recovery pipe having a left branch and a right branch, the end of the left branch connected to a bait collector, and the end of the right branch connected to a decompression chamber. The buoy floats on the sea level, and at least 8 ropes are connected below, and a net cage for hairtail fish culture is suspended below the ropes. The funnel at the bottom of the net cage is used to collect residual bait for feeding hairtail fish, and the recovery pipe at the bottom of the funnel has a diameter that allows mature hairtail fish to pass through, and is mainly used to recover bait and culture mature hairtail fish, and the bait will eventually return to the bait collector through the left branch, and the hairtail fish will eventually return to the decompression chamber through the right branch. Both the bait collector and the decompression chamber are equipped with water pumps. During the breeding process of hairtail, when the bait at the bottom gathers to a certain amount, it will affect the water quality environment in the net cage. At this time, the water pump in the bait collector will open, and the bait will return to the bait collector through the recovery pipe and the left branch. The bait will stop being absorbed after it reaches below the safe height of the bait.

[0006] If the hairtail fish is mature and needs to be caught and recovered, the water pump in the bait collector is turned on to absorb the bait. At this time, all the bait can be absorbed into the recovery pipe, and some hairtail fish will also be absorbed into the recovery pipe. Because of the existence of the filter, some hairtail fish will remain in the recovery pipe. After all the bait is absorbed into the bait collector, the water pump in the decompression chamber is turned on. The suction force of the water pump in the decompression chamber is greater than the suction force of the water pump in the bait collector. Finally, the hairtail fish will be drained to the right branch and finally enter the decompression chamber. The decompression chamber gradually decompresses the pressure to allow the hairtail fish to adapt to the pressure changes, and finally ensure the survival rate of the recovered hairtail fish.

[0007] A method and a device for raising hairtail fish, wherein a filter is arranged in a left branch, and a square grid length a of the filter is between 0.1 cm and 5 cm. The filter only allows bait to pass through and prevents hairtail fish from passing through, in order to separate and recycle the bait and hairtail fish. The diameter of the bait fed to hairtail fish is generally less than 5 cm, and the length of hairtail fish is generally more than 10 cm, so the square grid length a of the filter is set to be between 0.1 cm and 5 cm.

[0008] A method and a breeding device for hairtail fish, wherein a bait collector is placed on a buoy. A monitoring ship is docked around the buoy, and the buoy has a hollow. A fixed pulley assembly is fixedly arranged on the side of the buoy close to the monitoring ship, and the fixed pulley assembly is also located on the side of the hollow close to the monitoring ship. The hollow is for the convenience of the winch cable extending from the middle of the buoy, so as to facilitate the adjustment of the descending and ascending position of the decompression chamber. The fixed pulley assembly is used to place the cable, which can change the stretching direction of the cable, prevent the cable from generating severe friction with the buoy during the process of descending and pulling the decompression chamber, thereby preventing the structure of the buoy from being damaged, and ensure that the buoy remains stable during the process of recovering the decompression chamber.

[0009] A method and a breeding device for hairtail fish, wherein a winch is fixedly arranged on a monitoring ship, the winch is wound with a cable, and a decompression chamber is suspended under the fixed pulley. The decompression chamber is gradually lowered to a designated position by a cable to recover mature hairtail fish, and when the hairtail fish are recovered, the winch drives the cable to pull the decompression chamber back to the sea level to recover the mature hairtail fish. The initial setting pressure of the decompression chamber is similar to the average pressure in the net cage. In this device, hairtail fish generally live in a water depth of 20 to 40 meters, and the initial setting pressure is generally between 2 and 5 standard atmospheric pressures. Before setting the initial pressure, the position pressure of each area in the net cage can be detected by a detection instrument. In order to avoid the death of hairtail fish due to sudden decompression due to changes in environmental pressure, the decompression chamber gradually reduces the pressure from the initial setting pressure to 1 standard atmospheric pressure within 30 minutes to allow the hairtail fish to gradually adapt to the pressure change to improve the survival rate. At the same time, the winch also lifts the decompression chamber to the sea level within 30 minutes, and finally the staff recovers the hairtail fish in the decompression chamber.

[0010] A method and device for raising hairtail fish, wherein a feeder is provided on a monitoring ship, the feeder is connected to a feeder pipe, and the end of the feeder pipe is connected to the center of the net surface of the net cage close to the sea surface. The feeder puts bait into the feeder pipe, and the bait enters the net cage from the top of the net cage along the feeder pipe.

[0011] A method and a device for raising hairtail fish, wherein weight blocks are hung around a net cage, and buoys are placed on the net surface of the net cage close to the sea surface. The main function of the weight blocks is to increase the stability of the device and prevent the float and the net cage from tilting or moving due to water flow or wind and waves. The weight blocks are usually made of heavy materials, such as concrete blocks or metal blocks. The counterweight is connected to the float by a rope, and together they work on the stability of the entire breeding device. The main function of the buoy is to provide buoyancy to help the net cage remain at a predetermined water depth. By adjusting the number and position of the buoys, the stability of the entire breeding device in the water can be ensured.

[0012] A method for raising hairtail fish and a breeding device thereof, wherein a sensing valve is provided at the bottom of a funnel, and a first sensing camera and a second sensing camera are installed on the side of the funnel. The first sensing camera is used to set the monitoring bait cleaning height, and the second sensing camera is used to set the monitoring bait safety height. The first sensing camera, the second sensing camera, and the sensing valve are controlled by an external computer, and the external computer can be placed on a monitoring ship. The data transmission method can refer to the disclosed technology US20110177779A1. Excessive accumulation of bait will affect the sanitary conditions of the seawater in the net cage. When the accumulation of bait exceeds the bait cleaning height, the sensing valve at the bottom of the funnel is opened, and the water pump in the bait collector is opened to suck the bait at the bottom of the funnel to stop at the bait safety height, and the sensing valve is closed at this time. The bait safety height is to keep a certain amount of bait in the funnel to supplement the hairtail fish, and the hairtail fish generally moves above the bait accumulation line to avoid absorbing the immature hairtail fish into the recovery pipe when the bait is recovered. Another situation is that when the hairtail fish matures, it is only necessary to open the sensing valve at this time to drain all the bait and mature hairtail fish into the recovery pipe for recovery.

[0013] A method and a device for raising hairtail fish, wherein the distance b between the net surface of the net cage close to the sea level and the sea level is between 20 meters and 40 meters. Wild hairtail fish generally live 20 meters to 40 meters below the seabed, and b is set between 20 meters and 40 meters to simulate the living environment of hairtail fish.

[0014] The present invention improves the bait recovery rate, reduces waste and water pollution, optimizes the hairtail fishing method and improves the survival rate through intelligent monitoring, automatic recovery and decompression adaptation technologies. The filter net is used to realize the diversion recovery of bait and hairtail, improves the breeding management efficiency, and the decompression chamber is used to gradually reduce the pressure to avoid the death of hairtail due to environmental mutation. In addition, the device uses weight blocks and buoys to enhance stability, the feeder and feed pipe ensure accurate feeding, and the monitoring ship is equipped with a computer system to realize remote monitoring and intelligent management, which improves the sustainability and economic benefits of hairtail breeding as a whole, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 The present invention provides a schematic diagram of the overall device of a hairtail breeding method and a breeding device thereof.

[0017] Figure 2Schematic diagram of a filter mesh of a hairtail breeding method and a breeding device provided by the present invention Figure 3 A schematic diagram of a float of a hairtail breeding method and a breeding device thereof provided by the present invention.

[0018] Figure 4 A schematic diagram of the left branch and the right branch of a hairtail breeding method and a breeding device thereof provided by the present invention.

[0019] Figure 5 A schematic diagram of a funnel of a hairtail breeding method and a breeding device thereof provided by the present invention.

[0020] Description of the drawings: 1-buoy, 2-rope, 3-cage, 4-funnel, 5-recovery pipe, 51-left branch, 52-right branch, 51a-filter, 6-decompression chamber, 7-monitoring ship, 71-winch, 72-cable, 73-feeding machine, 74-feeding pipe, 11-bait collector, 12-fixed pulley assembly, 13-hole, 31-buoy, 32-weight block, 33-rope, 41-sensing valve, 42-first sensing camera, 43-second sensing camera, 44-bait cleaning height, 45-bait safety height. DETAILED DESCRIPTION

[0021] Embodiment 1: Refer to the attached Figure 1 , Attachment Figure 5 As shown, a method and a device for cultivating hairtail fish include a buoy 1, a rope 2 is connected to the bottom of the buoy 1, a net cage 3 is suspended below the rope 2, a funnel 4 is provided below the net cage 3, a recovery pipe 5 is connected to the bottom of the funnel 4, the recovery pipe 5 has a left branch 51 and a right branch 52, the end of the left branch 51 is connected to a bait collector 11, and the end of the right branch 52 is connected to a decompression chamber 6. The buoy 1 floats on the sea level, and at least 8 ropes are connected below, and a net cage 3 for cultivating hairtail fish is suspended below the ropes. The funnel 4 at the bottom of the net cage 3 is used to collect residual bait for feeding hairtail fish, and the recovery pipe 5 at the bottom of the funnel 4 has a diameter that allows mature hairtail fish to pass through, and is mainly used to recover bait and cultivate mature hairtail fish, and the bait will eventually return to the bait collector 11 through the left branch 51, and the hairtail fish will eventually return to the decompression chamber 6 through the right branch 52. Both the bait collector 11 and the decompression chamber 6 are equipped with water pumps. During the culture of hairtail, when the bait at the bottom gathers to a certain amount, it will affect the water quality environment in the net cage 3. At this time, the water pump in the bait collector 11 will be turned on, and the bait will return to the bait collector 11 through the recovery pipe 5 and the left branch 51. The bait will stop being absorbed after it reaches a bait safety height of 45 or below.

[0022] Refer to the attached Figure 1 , Attachment Figure 4As shown, if the hairtail has matured and needs to be fished and recovered, the water pump in the same bait collector 11 is opened to absorb the bait first, and all the bait can be absorbed in the recovery pipe 5 at this moment, and some hairtails will also be absorbed in the recovery pipe 5. Because of the existence of the filter screen 51a, some hairtails will stay in the recovery pipe, and after all the bait is absorbed in the bait collector 11, the water pump in the decompression chamber 6 is opened, and the suction of the water pump in the decompression chamber 6 is greater than the suction of the water pump in the bait collector 11, and finally the hairtails will be drained to the right branch 52 and finally enter the decompression chamber 6, and the decompression chamber 6 gradually decompresses and allows the hairtails to adapt to the pressure change and finally guarantees the survival rate of the hairtails to be recovered.

[0023] Refer to the attached Figure 2 , Attachment Figure 4 As shown, a method and a device for raising hairtail fish are provided, wherein a filter screen 51a is provided in the left branch 51, and the square grid length a of the filter screen 51a is between 0.1 cm and 5 cm. The filter screen 51a only allows bait to pass through and prevents hairtail fish from passing through, in order to separate and recycle the bait and hairtail fish. The diameter of the hairtail fish bait is generally less than 5 cm, and the hairtail fish body length is generally more than 10 cm, so the square grid length a of the filter screen is set to be between 0.1 cm and 5 cm.

[0024] Refer to the attached Figure 1 , Attachment Figure 3 As shown, a method and a device for raising hairtail fish are provided, wherein a bait collector 11 is placed on a buoy 1. A monitoring ship 7 is docked around the buoy 1, and the buoy has a hollow 13. A fixed pulley assembly 12 is fixedly provided on the side of the buoy 1 close to the monitoring ship 7. The hollow 13 is for facilitating the extension of the cable 72 of the winch 71 from the middle of the buoy 1, so as to facilitate the adjustment of the descending and ascending position of the decompression chamber 6. The fixed pulley assembly 12 is used to place the cable 72, and can change the stretching direction of the cable 72, so as to prevent the cable 72 from generating severe friction with the buoy 1 during the process of descending and pulling the decompression chamber 6, thereby damaging the structure of the buoy 1, and ensure that the buoy 1 remains stable during the process of recovering the decompression chamber 6.

[0025] Refer to the attached Figure 1As shown, a method for raising hairtail and a culture device thereof, a winch 71 is fixedly arranged on a monitoring ship 7, the winch 71 is wound with a cable 72, and the cable 72 passes through a fixed pulley 12 and hangs a decompression chamber 6. The decompression chamber 6 is gradually lowered to a designated position by the cable 72 to recycle the mature hairtail, and when the hairtail is recovered, the winch 71 drives the cable 72 to pull the decompression chamber 6 back to the sea level to recycle the mature hairtail. The initial setting pressure of the decompression chamber 6 is close to the average pressure in the net cage 3. Hairtail generally lives in a water depth of 20 meters to 40 meters in this device, and the initial setting pressure is generally between 2 and 5 standard atmospheric pressures. Before setting the initial pressure, the position pressure of each area in the net cage 3 can be detected by a detection instrument. In order to avoid the hairtail from suddenly losing pressure due to environmental pressure changes and causing the hairtail to die, the decompression chamber 6 is gradually reduced from the initial setting pressure to 1 standard atmospheric pressure within 30 minutes to allow the hairtail to gradually adapt to the pressure change to improve the survival rate. At the same time, the winch 71 also lifts the decompression chamber 6 to the sea level within thirty minutes, and finally the staff recovers the hairtail in the decompression chamber 6.

[0026] Refer to the attached Figure 1 As shown, a method and device for raising hairtail fish are provided, wherein a feeder 73 is provided on a monitoring ship 7, and a feeder pipe 74 is connected to the feeder 73, and the end of the feeder pipe 74 is connected to the center of the net surface of the net cage 3 close to the sea surface. The feeder 73 feeds bait into the feeder pipe 74, and the bait enters the net cage 3 from the top of the net cage 3 along the feeder pipe 74.

[0027] Refer to the attached Figure 1 As shown, a method and a device for raising hairtail fish are provided, wherein weight blocks 32 are hung around the net cage 3, and buoys 31 are placed on the net surface of the net cage 3 close to the sea surface. The main function of the weight blocks 32 is to increase the stability of the device and prevent the float 1 and the net cage 3 from tilting or moving due to water currents or wind and waves. The weight blocks are usually made of heavy materials, such as concrete blocks or metal blocks. The counterweight is connected to the float 1 by a rope 33, and they work together to stabilize the entire breeding device. The main function of the buoy 31 is to provide buoyancy to help the net cage 3 remain at a predetermined water depth. By adjusting the number and position of the buoys 31, the stability of the entire breeding device in the water can be ensured.

[0028] Refer to the attached Figure 1 As shown, a method for raising hairtail and a culture device thereof, the distance b between the net surface of the net cage 3 close to the sea level and the sea level is between 20 meters and 40 meters. Wild hairtail generally lives at 20 meters to 40 meters below the seabed, and b is set between 20 meters and 40 meters to simulate the living environment of hairtail.

[0029] Refer to the attached Figure 5As shown, a method for raising hairtail and a breeding device thereof, a sensing valve 41 is provided at the bottom of the funnel 4, and a first sensing camera 42 and a second sensing camera 43 are installed on the side of the funnel 4. The first sensing camera 42 is used to set the monitoring bait cleaning height 44, and the second sensing camera 43 is used to set the monitoring bait safety height 45. The first sensing camera 42, the second sensing camera 43, and the sensing valve 41 are controlled by an external computer, and the external computer can be placed on the monitoring ship 7. The data transmission method can refer to the public technology US20110177779A1. Excessive bait accumulation will affect the seawater sanitation in the net cage 3. When the bait accumulation exceeds the bait cleaning height 44, the computer controls the sensing valve 41 at the bottom of the funnel 4 to open, and the water pump in the bait collector 11 is turned on to suck the bait at the bottom of the funnel 4 to the bait safety height 45 and stop, and the sensing valve 41 is closed at this time. The bait safety height 45 is to keep a certain amount of bait in the funnel to supplement the hairtail, and the hairtail generally moves above the bait accumulation line to avoid the hairtail being not yet mature being absorbed into the recovery pipe 5 when the bait is recovered. Another situation is that after the hairtail matures, it is only necessary to open the induction valve 41 at this time to drain the bait and the mature hairtail into the recovery pipe 5 for recovery.

[0030] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to impose any form of limitation on the implementation methods of the technology of the present invention. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0031] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A method and device for raising hairtail fish, comprising a float (1), the bottom of the float (1) being connected to a rope (2), a net cage (3) being suspended below the rope (2), a funnel (4) being provided below the net cage (3), the bottom of the funnel (4) being connected to a recovery pipe (5), characterized in that: The recovery pipe (5) has a left branch (51) and a right branch (52); the end of the left branch (51) is connected to a bait collector (11), and the end of the right branch (52) is connected to a decompression chamber (6).

2. The method and device for raising hairtail fish according to claim 1, characterized in that: A filter screen (51a) is provided in the left branch (51), and a square grid length a of the filter screen (51a) is between 0.1 centimetres and 5 centimetres.

3. The method and device for raising hairtail fish according to claim 1, characterized in that: The bait collector (11) is placed on the buoy (1).

4. The method and device for raising hairtail fish according to claim 1, characterized in that: A monitoring ship (7) is moored around the buoy (1), the buoy has a hollow (13), and a fixed pulley assembly (12) is fixedly provided on a side of the buoy (1) close to the monitoring ship (7).

5. The method and device for raising hairtail fish according to claim 4, characterized in that: A winch (71) is fixedly provided on the monitoring ship (7), a cable (72) is wound around the winch (71), and the cable (72) passes under the fixed pulley (12) to suspend the decompression chamber (6).

6. The method and device for raising hairtail fish according to claim 4, characterized in that: The monitoring ship (7) is provided with a feeding machine (73), the feeding machine (73) is connected to a feeding pipe (74), and the end of the feeding pipe (74) is connected to the center of the net surface of the net cage (3) close to the sea surface.

7. The method and device for raising hairtail fish according to claim 1, characterized in that: Weight blocks (32) are suspended around the net cage (3), and a buoy (31) is placed on the net surface of the net cage (3) close to the sea surface.

8. The method and device for raising hairtail fish according to claim 1, characterized in that: The bottom of the funnel (4) is provided with a sensing valve (41), and the side of the funnel (4) is provided with a first sensing camera (42) and a second sensing camera (43).

9. The method and device for raising hairtail fish according to claim 1, characterized in that: The distance b between the mesh surface of the mesh cage (3) close to the sea level and the sea level is between 20 meters and 40 meters.

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