A sound wave control system for monitoring sea cucumber behavior and use method

Abstract

The present invention provides a sound wave control system for monitoring the behavior of sea cucumbers and a method for use, the sound wave control system of the system includes a sea cucumber circulation breeding unit, a signal control unit and a monitoring unit, the signal control unit includes a sound unit, a signal control unit and a signal output system, the sound unit includes providing a specific band of sound waves into the system, including a signal generator and a power amplifier, the signal generator is used to provide a specific band of sound waves, the power amplifier realizes the driving of an underwater speaker in the system, and the signal generator outputs sound waves into the water body through the power generator and the underwater speaker; the signal control unit includes a spectrum analyzer for measuring the band, and the state of sound waves in the monitoring system. The present invention can accurately measure noise characteristics, better simulate actual conditions, and generate noises of different characteristics for an experimental system for studying the impact of sea cucumbers and other marine animals on behavior.

Description

Technical Field

[0001] The present invention relates to the technical field of marine environment and ecological protection, and in particular to a sound wave control system for monitoring sea cucumber behavior and a use method thereof. Background Art

[0002] Noise refers to irregular or random sound wave signals. It is usually composed of multiple sound waves with uncertain frequencies and amplitudes, without obvious periodicity or predictable patterns. In the study of marine environmental protection and ecological protection, people have gradually realized that noise has an impact on the marine ecosystem that cannot be ignored, especially the noise from human activities such as ships, construction projects, military activities, etc., which has a great impact on the behavior of marine animals. The impact of noise on marine life can be direct, such as causing hearing damage and reducing its ability to survive. In addition, noise may also interfere with the migration, foraging and reproduction of marine animals, and even interrupt communication between them, which is a serious problem for marine life that relies on sound for positioning, communication and social interaction. Therefore, it is of great significance to conduct research on the impact of noise pollution on the marine ecosystem.

[0003] Compared with the sound wave properties emitted by the sound positioning system of marine animals, noise has at least the following obvious differences:

[0004] 1. Frequency range: Marine animals (such as whales and dolphins) usually make sounds in a lower frequency range, while noise can cover a wider frequency range.

[0005] 2. Patterns and periodicity: The sounds of marine animals often have obvious patterns and periodicity, such as the low-frequency calls of blue whales and the high-frequency clicks of dolphins. Noise lacks such obvious patterns and repeatability.

[0006] 3. Intensity and duration: The sounds of marine animals are usually strong and long lasting, can travel far, and are used for communication and positioning, while noise can vary greatly in intensity and duration.

[0007] In order to conduct such research, it is necessary to establish an experimental system based on acoustic technology that can generate and control noise signals of different frequencies, intensities and durations to simulate different noise signals, and can observe and record the behavior of different types of marine animals so that the reactions and behavioral changes of marine animals when stimulated by noise can be observed and measured.

[0008] Existing experimental systems can often only simulate certain types of noise, such as ship noise or surfing. However, there are many other sources of noise in the ocean, such as meteorological conditions and human activities. These different types of noise vary in frequency, intensity and duration, and therefore have different effects on marine animals. As an important economic marine benthic animal, exploring the impact of noise on the behavior of sea cucumbers has obvious guiding and application value. Summary of the invention

[0009] In order to overcome the deficiencies in the prior art, the present invention provides a sound wave control system for monitoring sea cucumber behavior and a method of use.

[0010] To achieve the above-mentioned purpose, the present invention provides a sound wave control system for monitoring the behavior of sea cucumbers, which comprises: the sound wave control system comprises a sea cucumber circulation breeding unit, a signal control unit and a monitoring unit, the signal control unit comprises a sound generating unit, a signal regulating unit and a signal output unit, the sound generating unit provides a specific band of sound waves into the system, the monitoring unit comprises a lighting system, a shooting system and a spectrum analyzer for measuring the band, the lighting system is arranged above the sea cucumber circulation breeding unit, and the shooting system is used to record the behavior information of the sea cucumber;

[0011] The sea cucumber circulation breeding unit includes a breeding water tank and an oxygenation device. The oxygenation device uses an air stone wrapped with polyester fiber sound-absorbing cotton. The breeding water tank is provided with a vertical isolation plate to separate the experimental area from the air stone. At the same time, a bubble barrier plate is provided above the isolation plate to prevent the diffusion of bubbles above the air stone and protect the water surface of the photographed area. A track for hanging a feeding circle is provided on the upper part of the breeding water tank, and each feeding circle feeds a single sea cucumber.

[0012] Preferably, the feeding circle is composed of a funnel, a hollow ring and a hollow rib which are interconnected. The opening of the hollow rib is arranged on the central vertical line of the hollow ring. A plurality of hollow ribs are provided, and a bone brush is provided on each hollow rib.

[0013] Preferably, the aquaculture water tank is connected to a water reservoir through a pipeline valve group, and the water reservoir is located below the aquaculture water tank.

[0014] Preferably, the pipeline valve group is connected to a filter device, and the filter device consists of a filter cotton core and filter cotton. The filter cotton core is located inside a circulating water guide pipe, and the circulating water guide pipe is connected to the tail end of the circulating water pipeline and is located above the filter cotton.

[0015] Preferably, the sound-generating unit is a signal generator, the signal regulating unit is a power amplifier, the signal output unit is an underwater speaker, and the shooting system is a time-lapse camera.

[0016] Preferably, behavioral monitoring is performed on young ginseng that have completed metamorphosis.

[0017] The present invention also provides a method for monitoring sea cucumber behavior using an acoustic wave control system, which comprises the following steps:

[0018] Place the experimental subjects in the aquaculture tank and turn on the oxygenation equipment;

[0019] Turn on the generating unit and the shooting unit to record the behavior information of the experimental subjects, and control the sound conditions of the experiment through the spectrum analyzer;

[0020] When feeding is needed, the opening of the feeding circle is aimed at the experimental subject, and each experimental subject is fed in situ separately. After feeding, the feeding circle without any material is used to remove the scattered bait by the siphon principle. Uninterrupted behavior monitoring can be carried out during feeding.

[0021] The beneficial effects of the present invention are as follows:

[0022] The acoustic wave control system for monitoring sea cucumber behavior and the method of use described in the present invention can accurately measure noise characteristics, better simulate actual conditions, and generate noises with different characteristics for use in an experimental system for studying the impact of sea cucumber behavior, thereby providing a basic basis for regulating farmed animals in production practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the acoustic wave control system for monitoring sea cucumber behavior according to the present invention;

[0024] Figure 2 It is a structural schematic diagram of the horizontal bottom surface of the aquaculture tank in the acoustic wave control system for monitoring the behavior of sea cucumbers according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of the inclined bottom surface of the aquaculture tank in the acoustic wave control system for monitoring the behavior of sea cucumbers according to the present invention;

[0026] Figure 4 It is a schematic diagram of a circulating water guide pipe in the acoustic wave control system for monitoring sea cucumber behavior according to the present invention;

[0027] Figure 5 It is a schematic diagram of a water reservoir in the acoustic wave control system for monitoring sea cucumber behavior according to the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the feeding circle in the acoustic wave control system for monitoring the behavior of sea cucumbers according to the present invention;

[0029] In the figure:

[0030] Sea cucumber circulation breeding unit: 1. Breeding tank, 2. Bubble barrier, 3. Circulating water inlet pipe, 4. Air stone, 7. Circulating water outlet pipe, 8. First circulating water guide pipe, 9. Filter cotton, 10. Reservoir, 11. Seawater inlet pipe, 14. First drain pipe, 15. Second drain pipe, 20. External air pump, 21. External water pump, 22. First drain valve, 23. Second drain valve, 24. Circulating water inlet valve, 25. Seawater Water inlet valve, 26, circulating water outlet, 27, air stone outlet, 28, first drainage outlet, 29, filter cotton core, 30, second circulating water diversion pipe, 31, sound insulation board, 32, diversion pipe outlet, 33, second drainage outlet, 34, filter cotton support frame, 35, filter cotton, 36, isolation board, 37, polyester fiber sound-absorbing cotton, 38, loophole, 39, hollow ring, 40, hollow umbrella rib, 41 bone brush, 42, track, 43, opening;

[0031] Signal control unit: 6, underwater speaker, 12, signal generator, 13, power amplifier, 16, connecting wire,

[0032] Monitoring unit: 5. Probe, 17. Time-lapse camera, 18. Lighting system, 19. Spectrum analyzer. DETAILED DESCRIPTION

[0033] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present application will be further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] The purpose of the present invention is to provide a sound wave control system for monitoring sea cucumber behavior and a method of use, especially an experimental system and method of use that focuses on the effect of noise on sea cucumber behavior. The system can accurately measure noise characteristics, better simulate actual noise characteristics, and monitor sea cucumber behavior under different noise conditions.

[0036] like Figure 1-3The sound wave control system provided in this embodiment includes a sea cucumber circulation breeding unit, a signal control unit and a monitoring unit. The sea cucumber circulation breeding unit is used for temporarily breeding sea cucumbers. The signal control unit is used to regulate the state of sound waves that affect the behavior of sea cucumbers. The signal control unit includes a sound-generating unit, a signal adjustment unit and a signal output unit. The sound-generating unit is a device for emitting sound waves. The signal adjustment unit is used to adjust the properties of the sound waves. The signal output unit outputs the sound waves into the system to affect the sea cucumbers. Specifically, the sound-generating unit provides a sound wave field into the system, including a signal generator 12 and a power amplifier 13. The signal generator 12 is used to provide sound waves of a specific band. The power amplifier 13 is used to drive the underwater speaker 6 in the system to increase the sound signal. The signal generator 12 outputs sound waves into the water body through the power amplifier 13 and the underwater speaker 6 to form a sound wave field. The experimental system of the present invention utilizes the principle that the frequency of sound waves will not attenuate with the distance in the device. Experiments are conducted by using a signal generator to avoid interference caused by signal attenuation. The signal generator 12 can manually adjust the frequency and sound pressure level of the noise, the power amplifier 13 can use the USB interface to output the real recorded environmental noise, and the signal output unit is composed of a connecting line 16 and an underwater speaker 6. The underwater speaker 6 is installed on the side of the breeding tank 1 and is connected to the signal generator 12 and the power amplifier 13 by the connecting line 16.

[0037] The method of monitoring the behavior of sea cucumbers in the present invention is mainly a video recording method. Specifically, the monitoring unit includes a lighting system 18, a shooting system and a spectrum analyzer 19 for measuring bands. The lighting system 18 is arranged above the sea cucumber circulation breeding unit and provides lighting as needed. The shooting system is used to obtain the behavioral information of sea cucumbers, including a spectrum analyzer 19 and its probe 5, and a time-lapse camera 17, which together collect the behavioral data of sea cucumbers in the system and the state of the sound wave field in the monitoring system. The probe 5 is located inside the breeding tank 1 and is used to receive underwater signals. In the system of the present invention, the components in the monitoring unit and the signal control unit are electrically connected and signal connected through a connecting line 16.

[0038] When in use, the sea cucumber is temporarily raised and then placed in the sea cucumber circulation culture unit, the signal generator 12 and the power amplifier 13 are turned on to form a sound wave field in the system, the underwater speaker 6 and the lighting system 18 are started as needed, the probe 5 and the time-lapse camera 17 are used to record the behavior information of the sea cucumber, and the influence of the noise on its behavior is observed. During the experiment, the spectrum analyzer 19 is used to observe the state of the noise field and control the experimental conditions.

[0039] Example 2

[0040] Different from the above-mentioned embodiment, this embodiment improves the sea cucumber circulation breeding unit in the sound wave control system for monitoring the behavior of sea cucumbers. Specifically,

[0041] like Figure 1-3The sea cucumber circulation breeding unit is composed of a breeding water tank 1, a water reservoir 10, a pipeline valve group, a filtering device, and an oxygenation device. The water reservoir 10 is located below the breeding water tank 1 and provides the breeding water tank 1 with water resources required for breeding. The breeding water tank 1 is connected to the water reservoir 10 through the pipeline valve group, and the external seawater enters the water reservoir 10 through the seawater inlet pipe 11. A filtering device is arranged in the guide pipe in the pipeline valve group, and the filtering device is composed of a filter cotton core 29, a filter cotton 35 and a circulating water guide pipe (18, 30), and can filter the circulating water twice; the filter cotton core 29 is located inside the circulating water guide pipe, and the circulating water guide pipe is connected to the tail end of the circulating water pipeline (3, 7) and is located above the filter cotton 35.

[0042] Specifically, the pipeline valve group includes a circulating water inlet pipe 3, a circulating water outlet pipe 7, a first circulating water guide pipe 8, a circulating water inlet valve 24, a circulating water outlet 26, and a second circulating water guide pipe 30 for providing circulating water to the aquaculture water tank 1. A filter cotton core 29 is arranged in the first circulating water guide pipe 8 and the second circulating water guide pipe 30, and a guide pipe outlet 32 ​​is arranged on the surface. There is also a seawater inlet pipe 11, an external water pump 21, and a seawater inlet valve 25 for providing seawater to the reservoir 10. The aquaculture water tank 1 and the reservoir 10 are provided with corresponding first drain outlets 28, first drain pipes 14, second drain pipes 15, first drain valves 22, and second drain valves 23. The aquaculture water tank 1 is provided with an air stone port 27, and an air stone 4 is placed in the air stone port 27. The air stone 4 realizes oxygenation in the aquaculture water tank 1 through the external air pump 20. The system can filter the circulating water twice. The filter cotton core 29 is located inside the circulating water guide pipe. The circulating water guide pipe is connected to the tail end of the circulating water pipeline and is located above the filter cotton 35. The guide pipe can evenly distribute the circulating water to the filter 35.

[0043] like Figure 4-5 Before the equipment is put into operation, the seawater inlet valve 25 is opened, and the seawater enters the water reservoir 10 through the seawater inlet pipe 11. The external water pump 21 and the circulating water inlet valve 24 are opened to allow the seawater to enter the aquaculture water tank 1 until the water surface reaches the circulating water outlet 26. When the water surface in the water reservoir 10 reaches below the filter cotton 35, the seawater inlet valve 25 can be closed. The circulating water will pass through the circulating water outlet pipe 7 and the filter cotton core 29 in turn for the first filtering of the circulating water. The circulating water will flow out from the guide pipe outlet 32 ​​through the circulating water guide pipe 30. At this time, the circulating water will evenly pass through the filter cotton 35 for the second filtering and flow back to the water reservoir 10. The circulating water guide pipe 30 can be freely disassembled from the circulating water outlet pipe 7. The filter cotton support frame 34 on the water reservoir is integrated with the water reservoir 10. The filter cotton core 29 and the filter cotton 35 can be replaced after their service life has reached. If it is necessary to drain the water in the aquaculture water tank 1 and the water reservoir 10 later, the first drain valve 22 and the second drain valve 23 can be opened respectively.

[0044] The oxygenation equipment emits a tiny noise into the system, so polyester fiber sound-absorbing cotton is used to improve the air stone to reduce the impact. At the same time, the sound waves of the signal generator can cover up other tiny noises to a certain extent. Specifically, the air stone 4 wrapped by polyester fiber sound-absorbing cotton 37 is placed in the air stone port 27 from the bottom, and the trachea is inserted to make a good seal. Previous experiments have found that sea cucumbers often climb onto the air stone 4, so a vertical isolation plate 36 is set to separate the experimental area from the air stone 4 to prevent the experimental subjects from climbing onto the air stone 4. In addition, a bubble barrier plate 2 is set above the isolation plate 36 in the upper part of the breeding water tank 1. The bubble barrier plate 2 can block the diffusion of bubbles above the air stone 4 and protect the water surface of the photographed area. There is a channel for water circulation between the isolation plate 36 and the bubble barrier plate 2. Preferably, the isolation plate 36 and the bubble barrier plate 2 can be set on the same vertical line but not connected, or they can be set on different vertical lines. A sound insulation plate 31 is provided on the outside of the external air pump 20 and the external water pump 21, and can be placed at the far end to avoid affecting the output signal. In addition, a rubber pad can be placed around the bottom of the air stone 4. The elasticity of the rubber pad can reduce shock and have a certain sound absorption effect. At the same time, because the oxygenation in the water tank does not need to be turned on very high, the noise interference of the oxygenation equipment itself can also be controlled by directly adjusting the power of the air pump.

[0045] When conducting a behavior monitoring experiment, turn on the lighting system 18 to provide light for the time-lapse camera 17. Turn on the external air pump 20 to provide dissolved oxygen for the aquaculture tank 1, and the bubble barrier plate 2 will block the bubbles on the water surface above the air stone 4 from diffusing to the water surface of the filmed area to avoid image shooting. According to the experimental needs, use the signal generator 12 to set the noise frequency and sound pressure level required for the experiment, and the duration can be freely controlled, or use the power amplifier 13 to play the recorded real sound file by reading the data. The underwater speaker 6 is fixed on the side of the aquaculture tank 1, and the signal is output by the underwater speaker 6. During the signal output process, the output signal is received by the underwater probe 5, and the output signal is monitored by the spectrum analyzer 19, and the signal emitted by the signal generator 12 can be corrected according to the spectrum analyzer 19.

[0046] Example 3

[0047] The system of the present invention is mainly aimed at young sea cucumbers that have completed metamorphosis. The morphology of young sea cucumbers is similar to that of adults. It takes about 1 to 2 years for young sea cucumbers to develop into sexually mature adults. Generally speaking, as sea cucumbers grow and develop, their sensitivity to sound may weaken or stabilize. Sea cucumbers in the juvenile stage are more sensitive to sound, probably because their sensory cells and nervous systems are in the development stage and are more sensitive to external stimuli. When the system of the present invention is used for experiments, sea cucumbers need to be cultured in the breeding tank 1 for a period of time to complete the experiment. The experimental cycle for observing the influence of the sound wave field on the behavior of sea cucumbers is relatively long. During the experiment, the sea cucumbers need to be fed, but the position of the feed will greatly affect the movement path of the sea cucumbers. Therefore, it is necessary to design a feeding scheme in the system.

[0048] like Figure 6 Since the feed has obvious attraction and attracting effect on sea cucumbers, if the feeding of the feed does not cause obvious migration of sea cucumbers, the effect of the feed on the behavior of sea cucumbers can be offset. Based on this, the system of the present invention uses a feeding circle to feed individual sea cucumbers. The feeding circle is composed of a funnel 38, a hollow ring 39 and a hollow rib 40 that are interconnected. The opening 43 of the hollow rib 40 is set on the central vertical line of the hollow ring 39. There are multiple hollow ribs 40, and each hollow rib 40 is provided with a bone brush 41. A track 42 is set on the upper part of the breeding water tank 1. The upper end of the funnel 38 is larger and can be hung on the track 42. Preferably, the axial direction of the hollow rib 40 is inclined to the horizontal direction.

[0049] When feeding, the feeding circle is hung so that the opening of the hollow umbrella rib 40 is aligned with the head of the sea cucumber. The bait enters the hollow ring 39 through the funnel 38, and then enters the hollow umbrella rib 40 at the opening to feed the sea cucumber in situ, so that feeding is achieved without affecting the behavior of the sea cucumber. The bait that is not ingested by the sea cucumber is scattered on the bottom surface of the aquaculture water tank 1. At present, the more effective way to quickly clean the food is to siphon the siphon tube. Both feces and food residues can be cleaned, the speed is fast, and the sea cucumber can be avoided from touching during the cleaning process. However, the viscosity of the feed is relatively large, and conventional siphons are difficult to clean effectively. In the present invention, the feeding circle can act as a siphon tube when the bait is not filled. When in use, the bait on the bottom surface of the aquaculture water tank 1 is brushed off with a bone brush 41, and the siphon principle is used to siphon it into the funnel 38, and then it is drained to the outside of the system to achieve cleaning. The bottom surface of the aquaculture water tank 1 can also be set to a slope, and the feces can be easily cleaned by opening the water outlet after the experiment.

[0050] During the experiment, the signal output of the sound wave is continuous. The monitoring of movement behavior can be selected for 6h, 8h or 12h in a day. The sea cucumbers are fed during the non-movement behavior monitoring period of the day. This process can monitor the impact of sound waves on the feeding behavior of sea cucumbers. Then, during the movement behavior monitoring period, the food in the breeding tank is cleaned to eliminate the impact of food on the movement behavior of sea cucumbers or other marine benthic organisms and marine organisms.

[0051] The present invention provides an experimental system for the influence of noise on the behavior of sea cucumbers. By simulating noise from different sources and combining with observation equipment, the influence of noise on the behavior of sea cucumbers and other marine animals is studied. The experimental system includes: a circulating culture system, a lighting system, a shooting system, a signal generation system, a signal output system and a signal monitoring system. Among them, the signal generation system can simulate noises with different characteristics, such as ship engine sounds, pile driving sounds, etc.; the signal monitoring system is used to monitor and calibrate noise characteristics; and the observation equipment is used to observe and record behavioral changes of marine animals. The experimental system can effectively simulate the influence of noises with different characteristics and different sources on the behavior of sea cucumbers and other marine animals, and provides a useful tool for studying marine environmental protection. The research results of the experimental system are of great significance for formulating relevant policies and management measures to protect the living environment of marine organisms.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A sound wave control system for monitoring sea cucumber behavior, characterized in that: The behavior of young sea cucumbers that have completed metamorphosis is monitored. The sound wave control system includes a sea cucumber circulation breeding unit, a signal control unit and a monitoring unit. The signal control unit includes a sound generating unit, a signal adjusting unit and a signal output unit, wherein the sound generating unit provides sound waves of a specific band to the system, the sound generating unit is a signal generator, the signal adjusting unit is a power amplifier, and the signal output unit is an underwater speaker; The monitoring unit includes a lighting system, a shooting system and a spectrum analyzer for measuring wavebands, wherein the lighting system is arranged above the sea cucumber circulation culture unit, and the shooting system is used to record the behavior information of the sea cucumber, and the shooting system is a time-lapse camera; The sea cucumber circulation breeding unit includes a breeding water tank and an oxygenation device, wherein the oxygenation device uses an air stone wrapped with polyester fiber sound-absorbing cotton, and the breeding water tank is provided with a vertical isolation plate to separate the experimental area from the air stone, and a bubble barrier plate is provided above the isolation plate to prevent the diffusion of bubbles above the air stone, thereby protecting the water surface of the photographed area; A track for hanging a feeding circle is arranged on the upper part of the aquaculture water tank. Each feeding circle feeds a single sea cucumber. The feeding circle is composed of a funnel, a hollow ring and a hollow rib that are interconnected. The opening of the hollow rib is arranged on the central vertical line of the hollow ring. A plurality of hollow ribs are arranged, and a bone brush is arranged on each hollow rib. The upper end of the funnel is relatively large and is hung on the track. The axial direction of the hollow rib is inclined to the horizontal direction. When feeding, the feeding circle is hung so that the opening of the hollow rib is aligned with the head of the sea cucumber. The bait enters the hollow ring through the funnel and then enters the hollow rib at the opening to feed the sea cucumber in situ. The aquaculture water tank is connected with a water reservoir through a pipeline valve group, and the water reservoir is located below the aquaculture water tank; the pipeline valve group is connected with a filter device, and the filter device consists of a filter cotton core, filter cotton and a circulating water diversion pipe, the filter cotton core is located inside the circulating water diversion pipe, and the circulating water diversion pipe is connected to the tail end of the circulating water pipeline and is located above the filter cotton; when no bait is filled, the bait casting circle can act as a siphon, and when in use, a bone brush is used to brush the bait on the bottom surface of the aquaculture water tank, and the siphon principle is used to siphon it into the funnel, and then it is drained to the outside of the system to achieve cleaning.

2. A method for monitoring sea cucumber behavior based on the sound wave control system according to claim 1, characterized in that: The following steps are included: Place the experimental subjects in the aquaculture tank and turn on the oxygenation equipment; Turn on the generating unit and the shooting unit to record the behavior information of the experimental subjects, and control the sound conditions of the experiment through the spectrum analyzer; When feeding is needed, the opening of the feeding circle is aimed at the experimental subject, and each experimental subject is fed in situ separately. After feeding, the feeding circle without any material is used to remove the scattered bait by the siphon principle. Uninterrupted behavior monitoring can be carried out during feeding.

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