Buoy-based culture system for measuring marine primary productivity by black and white bottles

Abstract

The invention discloses a buoy-based culture system for measuring primary marine productivity by black and white bottles, and relates to the technical field of marine ecological environment monitoring, the buoy-based culture system comprises a first connecting ring, and a measuring foundation column vertically arranged around the axis of the inner ring of the first connecting ring; a bearing frame body is arranged at the bottom of the measuring base column in a penetrating manner and can move up and down relative to the measuring base column, and at least two bottle bodies can be placed in the bearing frame body. The scheme provided by the invention solves the problems of high intervention degree, uncontrollable measurement depth and poor stability of equipment in water in the prior art.

Description

Technical Field

[0001] This invention relates to the field of marine ecological environment monitoring technology, specifically to a buoy-based culture system for measuring marine primary productivity using black and white bottles. Background Technology

[0002] Marine primary productivity is a core indicator for measuring the health of marine ecosystems, the efficiency of material cycling, and the potential of fishery resources. Its accurate measurement is crucial for marine ecological assessment, aquaculture planning, and climate change response analysis. Currently, the black-and-white bottle method is one of the classic methods for measuring marine primary productivity. Its principle is to calculate the photosynthetic oxygen production of phytoplankton by comparing the changes in dissolved oxygen concentration in white bottles (transparent, allowing for photosynthesis and respiration), black bottles (opaque, allowing only respiration), and a control bottle (initial baseline state), thereby deriving the primary productivity level. However, traditional black-and-white bottle measurements rely on manual labor to travel by boat to the target sea area, obtain seawater samples from specific water layers using a water sampler, dispense them into black-and-white bottles, and then return them to the original water layer for cultivation. After cultivation, the samples are manually retrieved and analyzed in the laboratory. This process suffers from high levels of human intervention, large errors, uncontrollable traditional drop depths, and unreliable equipment stability in water.

[0003] In existing technologies, solutions for measuring marine primary productivity or managing marine ecosystems have not yet solved the problem of in-situ cultivation and measurement using the black-and-white bottle method. For example, the existing patented technology LU601155B1 uses a laser diode array and multi-wavelength LED simulated light source to collect fluorescence kinetic curves, and combines temperature calibration and intelligent computing units to achieve high-precision calculation of chlorophyll a concentration and primary productivity, thus improving data processing efficiency. However, it still has room for improvement in terms of in-situ deployment of black-and-white bottles. Another example is the existing patented technology WO2025097218A1, which uses an autonomous upwelling / downwelling device to change the marine ecological environment and combines intelligent feedback loops to achieve ecosystem management. However, it still has room for improvement in terms of equipment depth and equipment stability in water. Summary of the Invention

[0004] The purpose of this invention is to provide a buoy-based culture system for measuring marine primary productivity using black and white bottles, which solves the problems of high intervention, uncontrollable measurement depth, and poor stability of existing equipment in water.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a culture system for measuring marine primary productivity using black and white bottles based on a buoy, comprising a first connecting ring, a measuring base column with its axis vertically arranged around the inner ring of the first connecting ring, a bearing frame provided through the bottom of the measuring base column, the bearing frame being able to move up and down relative to the measuring base column, and at least two bottles being able to be placed inside the bearing frame.

[0006] This invention stabilizes and fixes the vertical orientation of the measuring base column by setting a first connecting ring around the inner ring of the measuring base column with a vertical axis. Furthermore, the bottom of the measuring base column is open to ensure seawater flow and movement of the supporting frame at the bottom. In this way, the supporting frame can move the bottle inside to the target water layer, adapting to the needs of multi-depth measurement. Moreover, the supporting frame can accommodate multiple bottles, such as black bottles, white bottles, and control bottles, to realize the black and white bottle method of measurement. This can reduce human intervention and ensure the in-situ accuracy and precision of marine primary productivity measurement.

[0007] According to one embodiment of the present invention, a mounting plate is built into the measuring base column. The mounting plate serves as a mounting carrier and is detachably connected to the measuring base column. This reduces the impact of shaking on the components mounted above and below the base column during use in water. A winding device is located below the mounting plate, and a pump body is located above the mounting plate. Furthermore, the winding device below the mounting plate controls the up-and-down movement of the supporting frame via a rope, enabling precise positioning of the bottle at different water layers and adapting to multi-depth measurement needs. The pump body above the mounting plate can deliver in-situ seawater to the bottle through connecting pipelines, reducing manual water sampling intervention.

[0008] According to one embodiment of the present invention, the supporting frame is connected to the suspended component above it via a support rod, and the suspended component is connected to a winding device via a third rope. The suspended component, connected to the winding device via the third rope, can drive the suspended component to move smoothly up and down within the measuring column by unwinding or winding the third rope. Furthermore, the supporting frame is rigidly connected to the suspended component via the support rod, thus moving synchronously with the suspended component. The suspended component effectively balances the weight of the supporting frame and the internal bottle, preventing them from moving too quickly or tilting due to excessive weight. Simultaneously, the buoyancy of the suspended component, connected to the winding device via the third rope, buffers the impact force during component movement when the winding device adjusts the height of the supporting frame by unwinding or winding the third rope, ensuring that the supporting frame drives the bottle to move smoothly up and down, preventing sample spillage or environmental disturbance. The buoyancy of the suspended component also balances the weight of the supporting frame and the bottle, preventing sample spillage or environmental disturbance caused by component swaying during movement.

[0009] According to one embodiment of the present invention, the bottle body is connected to the pump body via a connecting pipe. The pump body directly delivers in-situ seawater flowing into the bottom of the measuring column to the bottle body via the connecting pipe, eliminating the need for manual water sampling and packaging. This avoids sample exposure to air or disturbance by the ship, ensuring the consistency of the sample inside the bottle with the marine environment. Furthermore, the length of the connecting pipe is adapted to the vertical movement of the supporting frame relative to the measuring column, allowing for synchronous adjustment with the bottle body. This ensures that the bottle body can continuously obtain in-situ seawater through the connecting pipe even at different target water layers.

[0010] According to one embodiment of the present invention, a second through-hole is provided around the bottom side of the measuring column, allowing seawater to enter and exit the measuring column evenly from multiple directions, avoiding dead zones caused by unidirectional openings. This ensures real-time circulation between the seawater inside the measuring column and the external marine environment, maintaining the in-situ water quality around the bottle. Furthermore, the pump body has a connecting pipe that communicates with the bottom of the measuring column. The second through-hole in the measuring column can cooperate with the pump body and connecting pipe on the mounting plate, allowing the pump body to stably draw in-situ seawater and deliver it to the bottle, eliminating the need for manual water sampling and reducing sample contamination. At the same time, the surrounding design of the second through-hole can balance the water flow disturbance generated when the supporting frame moves up and down with the suspension component inside the measuring column, preventing local water pressure changes from affecting the sample state inside the bottle.

[0011] According to one embodiment of the present invention, a float is provided outside the first connecting ring to provide uniform upward buoyancy to the first connecting ring. The first connecting ring provides stable support to the inner surrounding measuring column, ensuring that the measuring column always maintains a vertical axis and avoids tilting due to seawater disturbance. At the same time, the buoyancy of the float can be balanced with the downward pull of the counterweight component below the second connecting ring, maintaining the suspension stability of the entire culture system in seawater and preventing the system from sinking or shifting. This ensures that the supporting frame moves smoothly and stably within the measuring column and remains at the target water layer.

[0012] According to one embodiment of the present invention, the base columns are connected by a second connecting ring, and a counterweight assembly is provided below the second connecting ring. The counterweight assembly includes a first column with buoyancy, and at least two counterweights are connected below the first column by a second rope. The first column is connected to the second ring at the top.

[0013] The measuring base columns are connected by a second connecting ring. This connection method enhances the lateral structural stability, prevents the measuring base columns from shifting due to seawater disturbance, and ensures that they always maintain a vertical axial posture. Furthermore, in the counterweight assembly below the second connecting ring, the counterweights are symmetrically distributed through the second rope, which can balance the buoyancy of the float outside the first connecting ring and prevent tilting.

[0014] According to one embodiment of the present invention, a groove is formed in the inner ring of the second ring, and a slider is built into the groove. The slider is connected to the first column via a first rope. When external disturbances such as ocean currents cause the system to generate lateral forces and tend to tilt, the slider can slide along the groove, adjusting the force angle of the first rope in real time. This allows the pulling direction of the counterweight assembly driven by the first column to be adapted to the direction of the disturbance, thus counteracting the lateral forces and preventing the second ring and the connected measuring base column from tilting, ensuring the stability of the supporting frame and bottle in the water.

[0015] According to one embodiment of the present invention, there are at least two sliders, with the ends of the sliders connected to a first rope connection located above the first column. The presence of at least two sliders forms a multi-directional balanced tension structure. When lateral disturbances occur due to ocean currents, multiple sliders can adaptively slide along the chute, transmitting symmetrical tension to the first column through the first rope, precisely offsetting lateral forces in different directions, and preventing excessive offset of the counterweight components that could cause system tilting.

[0016] According to one embodiment of the present invention, the bottle body includes at least one black bottle and one white bottle. The bottle body also includes a control bottle. All bottles are connected to a pump body via connecting pipes, and each bottle has a built-in sensor and a power supply, which can be a built-in battery or a battery installed in the measurement column. The black bottle is used to measure phytoplankton respiration consumption, the white bottle to measure the combined effect of photosynthesis and respiration, and the control bottle to determine the initial dissolved oxygen level. All bottles are connected to the pump body via connecting pipes, enabling simultaneous reception of in-situ seawater delivered by the pump. This avoids sample contamination or environmental deviations caused by manual sample preparation, ensuring consistency of sample conditions across all bottles. Furthermore, each bottle has a built-in sensor and power supply. The sensor can collect data such as dissolved oxygen and temperature in real time, and the continuous power supply ensures long-term in-situ monitoring without frequent retrieval, reducing manual intervention.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention directly extracts in-situ seawater into the bottle by measuring the pump body, connecting pipeline and bottom second through hole built into the measuring column, replacing the traditional manual water collection and dispensing operation, avoiding sample exposure and contamination, ensuring the consistency between the sample in the bottle and the marine environment, reducing measurement errors caused by human intervention, and relying on the linkage structure of the winding device, the third rope and the suspension component to drive the supporting frame and the bottle to move up and down smoothly in the measuring column, realizing the precise positioning and dwell of the bottle in different target water layers, and adapting to the needs of simultaneous measurement of primary productivity in the ocean at multiple depths. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a buoy-based culture system for measuring marine primary productivity using black and white bottles, according to the present invention. Figure 2 This is a schematic diagram of the counterweight component scheme of the present invention; Figure 3 This is a schematic diagram of the external structure of the first substrate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the first substrate of the present invention; Figure 5 This is a schematic diagram of the connection scheme between the partition and the rubber sleeve of the present invention; Figure 6 This is a schematic diagram of the external design of the measurement base column according to the present invention; Figure 7 This is a schematic diagram of the internal structure of the measuring column of the present invention; Figure 8 This is a schematic diagram of the connection scheme between the supporting frame and the suspension component of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 10. First base; 11. First through hole; 12. Rotating column; 13. Rotating component; 14. Blade; 15. Partition; 16. Connecting blade; 17. Partition net; 20. Float; 21. First connecting ring; 30. Measuring column; 31. Second through hole; 32. Mounting plate; 33. Pump body; 34. Winder; 35. Third rope; 36. Connecting pipeline; 40. Counterweight assembly; 41. Second connecting ring; 42. First rope; 43. First column; 44. Second rope; 45. Counterweight; 50. Bearing frame; 51. Suspension component; 52. Support rod; 60. Rubber sleeve; 70. Bottle body. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example 1: As shown in the attached figure Figure 1 - Appendix Figure 8 As shown, a buoy-based culture system for measuring marine primary productivity using black and white bottles includes a first connecting ring 21. A measuring base column 30 with its axis vertically arranged is arranged around the inner ring of the first connecting ring 21. The bottom of the measuring base column 30 is provided with a support frame 50. The support frame 50 can move up and down relative to the measuring base column 30 and can hold at least two bottles 70.

[0024] This invention stabilizes and fixes the vertical orientation of the measuring base column 30 by setting the inner ring of the first connecting ring 21 around the vertical axis. Furthermore, the bottom of the measuring base column 30 is open to ensure seawater flow and movement of the bottom support frame 50. In this way, the support frame 50 can move the bottle 70 inside to the target water layer, adapting to the needs of multi-depth measurement. Moreover, the support frame 50 can accommodate multiple bottles 70, so that black bottles, white bottles and control bottles can be placed to realize the black and white bottle method measurement. This can reduce human intervention and ensure the in-situ and accuracy of marine primary productivity measurement.

[0025] The measuring column 30 has a built-in mounting plate 32, which serves as the mounting carrier and is detachably connected to the measuring column 30. This reduces the impact of shaking on the components mounted above and below in water applications. A winder 34 is located below the mounting plate 32, and a pump body 33 is located above it. Furthermore, the winder 34 below the mounting plate 32 controls the up-and-down movement of the support frame 50 via a rope, enabling precise positioning of the bottle 70 at different water layers and adapting to multi-depth measurement needs. The pump body 33 above the mounting plate 32 can deliver in-situ seawater to the bottle 70 through connecting pipelines, reducing manual water sampling intervention.

[0026] The support frame 50 is connected to the suspension component 51 above it via a support rod 52, and the suspension component 51 is connected to the winding device 34 via a third rope 35. The suspension component 51 is connected to the winding device 34 via the third rope 35. The winding device 34 can drive the suspension component 51 to move smoothly up and down within the measuring base column 30 by winding and unwinding the third rope 35. Furthermore, the supporting frame 50 is rigidly connected to the suspension component 51 via the support rod 52, so it moves synchronously with the suspension component 51. The suspension component 51 can effectively balance the weight of the supporting frame 50 and the internal bottle 70, preventing them from moving too quickly or tilting due to excessive weight. At the same time, the suspension component 51 is connected to the winding device 34 via the third rope 35. When the winding device 34 winds up and unwinds the third rope 35 to adjust the height of the supporting frame 50, the buoyancy of the suspension component 51 can buffer the impact force when the component moves, ensuring that the supporting frame 50 drives the bottle 70 to move smoothly up and down, preventing the sample inside the bottle 70 from overflowing or the in-situ environment from being disturbed. Moreover, the buoyancy of the suspension component 51 can balance the weight of the supporting frame 50 and the bottle 70, preventing the component from shaking during movement, which could cause the sample inside the bottle 70 to overflow or the environment to be disturbed.

[0027] The bottle 70 is connected to the pump body 33 via a connecting pipe 36. The pump body 33 directly delivers in-situ seawater flowing into the bottom of the measuring column 30 through the connecting pipe 36 to the bottle 70, eliminating the need for manual water sampling and packaging. This avoids sample exposure to air or disturbance from the ship, ensuring the consistency of the sample inside the bottle 70 with the marine environment. Furthermore, the length of the connecting pipe 36 is adapted to the vertical movement of the supporting frame 50 relative to the measuring column 30, allowing it to adjust synchronously with the bottle 70. This ensures that the bottle 70 can continuously obtain in-situ seawater through the connecting pipe 36 even at different target water layers.

[0028] The measuring column 30 has a second through-hole 31 circumferentially formed around its bottom side, allowing seawater to enter and exit the column 30 evenly from multiple directions. This avoids dead zones caused by unidirectional openings, ensuring real-time circulation between the seawater inside the measuring column 30 and the external marine environment, maintaining the in-situ water quality around the bottle 70. Furthermore, the pump body 33 has a connecting pipe 36 that connects to the bottom of the measuring column 30. The second through-hole 31 in the measuring column 30 can work with the pump body 33 on the mounting plate 32 and the connecting pipe 36 to allow the pump to stably draw in-situ seawater and deliver it to the bottle 70, eliminating the need for manual water collection and reducing sample contamination. At the same time, the circumferential design of the second through-hole 31 balances the water flow disturbance generated when the supporting frame 50 moves up and down with the suspension component 51 within the measuring column 30, preventing local water pressure changes from affecting the sample state inside the bottle 70.

[0029] The supporting frame 50 is a three-dimensional frame composed of multiple parallel rings and rods, fitted inside the vertically oriented measuring column 30, and connected to the suspension component 51 via a support rod 52. It moves up and down along the inner wall of the measuring column 30 with the suspension component 51. When the supporting frame 50 moves upward, a local negative pressure zone is formed below it inside the measuring column 30, requiring external seawater to quickly fill the gap. When the supporting frame 50 moves downward, a local positive pressure zone is formed below it, requiring internal seawater to quickly drain to release pressure. If the seawater inlet and outlet channels are singular or unevenly distributed, the negative pressure zone will experience localized low pressure due to untimely seawater replenishment, and the positive pressure zone will experience localized high pressure due to poor seawater drainage (potentially squeezing the bottle 70 or disturbing the internal sample), thereby disrupting the in-situ state of the sample inside the bottle, such as dissolved oxygen concentration and temperature stability.

[0030] The second through hole 31 is arranged around the bottom side of the measuring base column 30 and the position of the through hole corresponds to the moving range of the supporting frame 50. When the supporting frame 50 moves up and down in the measuring base column 30, the water flow disturbance area below it always forms a ring corresponding to the surrounding second through hole 31, ensuring that the disturbance area can be connected to the external seawater from a 360° direction, rather than relying on water flow exchange in only one direction.

[0031] When the supporting frame 50 moves upward to form a local negative pressure, the surrounding second through holes 31 will simultaneously and evenly draw in external seawater from the circumferential direction at the bottom of the measuring base column 30. This avoids excessively fast local water flow caused by water replenishment through a single through hole, thus preventing water flow from impacting the outer wall of the bottle 70. Moreover, multi-directional water replenishment can quickly fill the negative pressure area, allowing the water pressure inside the measuring base column 30 to quickly return to uniformity without any local low-pressure dead zones. When the supporting frame 50 moves downward to form a local positive pressure, excess seawater inside will be simultaneously and evenly discharged from the circumferential direction through the surrounding second through holes 31. This avoids local water flow congestion caused by drainage through a single through hole, thus preventing water pressure from concentrating and squeezing the bottle 70, and also achieving uniform release of internal water pressure.

[0032] A float 20 is provided outside the first connecting ring 21 to provide uniform upward buoyancy to the first connecting ring 21. The first connecting ring 21 provides stable support to the inner surrounding measuring column 30, ensuring that the measuring column 30 always maintains a vertical axis and avoids tilting due to seawater disturbance. At the same time, the buoyancy of the float 20 can be balanced with the downward pull of the counterweight component 40 below the second connecting ring 41 to maintain the suspension stability of the entire culture system in seawater, prevent the system from sinking or shifting, and thus ensure that the carrying frame 50 drives the bottle 70 to move smoothly within the measuring column 30 and remain stably in the target water layer.

[0033] The base columns 30 are connected by a second connecting ring 41. A counterweight assembly 40 is provided below the second connecting ring 41. The counterweight assembly 40 includes a first column 43 with buoyancy. At least two counterweights 45 are connected below the first column 43 by a second rope 44. The first column 43 is connected to the second ring 41 above.

[0034] The measuring base columns 30 are connected by a second connecting ring 41. This connection method enhances the lateral structural stability, prevents the measuring base columns 30 from being misaligned due to seawater disturbance, and ensures that they always maintain a vertical axial posture. Furthermore, in the counterweight assembly 40 below the second connecting ring 41, the counterweights 45 are symmetrically distributed through the second rope 44, which can balance the buoyancy of the outer float 20 of the first connecting ring 21 and prevent tilting.

[0035] The inner ring of the second ring 41 has a groove with a built-in slider. The slider is connected to the first column 43 via the first rope 42. When external disturbances such as ocean currents cause lateral forces and a tendency to tilt in the system, the slider can slide along the groove to adjust the force angle of the first rope 42 in real time. This allows the tension direction of the first column 43 driving the counterweight assembly 40 to match the direction of the disturbance, thus counteracting the lateral forces and preventing the second ring 41 and the connected measuring base column 30 from tilting. This ensures the stability of the supporting frame 50 and the bottle 70 in the water.

[0036] There are at least two sliders, with the ends of the first rope 42 connected to each other and connected to a rope connection located above the first column 43. The presence of at least two sliders creates a multi-directional balanced tension structure. When the ocean current generates lateral disturbances, multiple sliders can adaptively slide along the chute, transmitting symmetrical tension to the first column 43 through the first rope 42, precisely counteracting lateral forces in different directions and preventing excessive offset of the counterweight assembly 40 that could cause the system to tilt.

[0037] The bottle body 70 contains at least one black bottle and one white bottle. Bottle body 70 also includes a control bottle. All bottles are connected to the pump body 33 via connecting pipe 36. Each bottle 70 has a built-in sensor and a power supply, which can be a built-in battery or a battery located within the measurement column 30. The black bottle is used to measure phytoplankton respiration consumption, the white bottle to measure the combined effect of photosynthesis and respiration, and the control bottle to determine the initial dissolved oxygen level. These bottles are all connected to the pump body 33 via connecting pipe 36, allowing for simultaneous reception of in-situ seawater delivered by the pump body 33. This avoids sample contamination or environmental deviations caused by manual sample preparation, ensuring consistency of sample conditions across all bottles. Each bottle 70 has a built-in sensor and power supply. The sensor can collect data such as dissolved oxygen and temperature in real time, and the continuous power supply ensures long-term in-situ monitoring without frequent retrieval, reducing manual intervention.

[0038] Example 2: In this embodiment, see Appendix Figure 1 Appendix Figure 3 - Appendix Figure 5 As shown, a first substrate 10 is connected above the measuring column 30 via a rubber sleeve 60. The first substrate 10 has a columnar structure and is hollow inside. (See attached diagram) Figure 4 As shown, the bottom of the first substrate 10 has a partition 15, see attached diagram. Figure 1 As shown, the first base 10 has a sealing plate on its upper part, and a first through hole 11 is formed around the bottom side of the first base 10. (See attached diagram) Figure 5 As shown, a through hole is provided around the partition plate 15, and a mesh 17 is provided inside the through hole.

[0039] Marine monitoring devices, such as wind speed sensors, temperature sensors, and hygrometers, can be placed on the sealing plate on the upper part of the first substrate 10 for marine environmental monitoring. A battery and a photovoltaic panel should be installed simultaneously to ensure that the sensors work continuously, and a signal transceiver should be set up.

[0040] The measuring column 30 is connected to the first base 10 via a rubber sleeve 60. The rubber sleeve 60 can buffer the relative swaying caused by seawater disturbance, avoid hard collisions and prevent external impurities from entering the measuring column 30. The first base 10 is a hollow column with an upper sealing plate to prevent debris from falling in. The first through hole 11 around the bottom side allows seawater to flow in from multiple directions. The through hole of the bottom partition 15 has a built-in mesh 17 to filter impurities such as mud, sand and planktonic remains in the seawater.

[0041] See appendix Figure 4 As shown, a rotating component 13 is suspended inside the first base 10. The rotating component 13 has a rotating column 12 on its upper part. The upper end of the rotating column 12 is rotatably connected to the sealing plate on the upper part of the first base 10 via a ball joint. Above the partition plate 15, there are surrounding and inclined blades 14. The blades 14 are connected by connecting rods, and there is a gap between the blades 14 and the partition plate 15 so they do not contact each other. The connecting rods between the blades 14 are connected to the rotating column 12 via connecting blades 16. The position of the through hole in the bottom partition plate 15 is not limited to corresponding to the rubber sleeve 60.

[0042] When seawater flows in through the first through hole 11, it can drive the blade 14 to rotate the rotating component 13, assisting the circulation of seawater in the first substrate 10. This allows the seawater filtered by the mesh 17 to flow evenly to the rubber sleeve 60 or the lower space of the partition 15, preventing water from entering the measuring column 30. The blade 14 and the partition 15 are spaced apart to avoid friction that hinders rotation and to allow water flow. The inclined blade 14 above the partition 15 is connected to the rotating column 12 via a connecting rod and connecting blade 16. When seawater flows in through the first through hole 11, it can drive the blade 14 to rotate the rotating component 13, assisting the circulation of seawater in the first substrate 10. This allows the seawater filtered by the mesh 17 to flow evenly, reducing waves above the measuring column 30. The resulting vortex helps to push away floating objects around the first substrate 10. In addition, the space between the blade 14 and the partition 15 prevents friction that hinders rotation and allows water flow.

[0043] Example 3: In this embodiment, see Appendix Figure 6 As shown, the rubber sleeve 60 is a sleeve structure that runs through the top and bottom. The contact diameter between the upper end of the rubber sleeve 60 and the partition plate 15 is smaller than the contact diameter between the bottom and the measuring base column 30. The surface of the rubber sleeve 60 has holes that communicate with its interior.

[0044] The rubber sleeve 60 has a tapered structure that runs vertically through the top and bottom. The contact diameter between the upper end and the partition plate 15 is smaller than the contact diameter between the bottom and the measuring base column 30. This allows it to fit tightly against the gap between the two, preventing external impurities from entering through the connection seam between the first base 10 and the measuring base column 30. Furthermore, the holes on the surface of the rubber sleeve 60 can help balance the internal and external air pressure, preventing deformation of the sleeve due to changes in water pressure. In this way, it can both buffer the relative swaying of the first base 10 and the measuring base column 30 caused by seawater disturbance, protect the stable operation of components such as the mounting plate 32 and the winding device 34 inside the measuring base column 30, and block impurities.

[0045] Example 4: In this embodiment, see Appendix Figure 7 As shown, the mounting plate 32 has an opening that allows the connecting pipe 36 to pass through, and the length of the connecting pipe 36 allows the bottle 70 to move down to a specified depth with the support frame 50. The length of the connecting pipe 36 is adapted to the requirement that the bottle 70 moves down to a specified depth with the support frame 50, so as to avoid the pipe being pulled and broken. The support frame 50 is composed of multiple parallel rings connected by rods. Its upper part is open, and its bottom is sealed by connecting rods. There is a gap between the bottom rods. In this way, the upper part is open, which facilitates the loading and unloading of the bottle 70. The bottom rods are sealed and there is a gap between the rods, which not only stabilizes the support of the bottle 70, but also allows seawater to circulate and maintain the in-situ environment of the sample inside the bottle. The middle part of the bottom rod is connected to the support rod 52. The suspension component 51 connected to the upper end of the support rod 52 has buoyancy and can move up and down within the measuring column 30.

[0046] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0047] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations 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 the technology or embodiments that are substantially the same as the present invention.

[0048] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art 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 inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A buoy-based culture system for measuring marine primary productivity using black and white bottles, characterized in that, Includes a first connecting ring (21), the inner ring of the first connecting ring (21) is surrounded by a measuring base column (30) with its axis vertically arranged, the bottom of the measuring base column (30) is provided with a bearing frame (50), the bearing frame (50) can move up and down relative to the measuring base column (30) and at least two bottles (70) can be placed in the bearing frame (50).

2. The buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 1, characterized in that, The measuring base column (30) has a built-in mounting plate (32) for installation, a winder (34) is provided below the mounting plate (32), and a pump body (33) is provided above the mounting plate (32).

3. The buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 2, characterized in that, The supporting frame (50) is connected to the suspension component (51) above it via a support rod (52), and the suspension component (51) is connected to the winding device (34) via a third rope (35).

4. The buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 2, characterized in that, The bottle (70) is connected to the pump body (33) via a connecting pipe (36).

5. A buoy-based culture system for determining marine primary productivity using black and white bottles, as described in claim 1, characterized in that, The measuring base column (30) has a second through hole (31) around its bottom side.

6. A buoy-based culture system for determining marine primary productivity using black and white bottles, as described in claim 1, is characterized in that... The first connecting ring (21) is provided with a float (20).

7. A buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 1, characterized in that, The measuring base columns (30) are connected by a second connecting ring (41). A counterweight assembly (40) is provided below the second connecting ring (41). The counterweight assembly (40) includes a first column (43) with buoyancy. At least two counterweights (45) are connected below the first column (43) by a second rope (44). The first column (43) is connected to the second ring (41) above.

8. A buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 7, characterized in that, The inner ring of the second ring (41) has a groove, and the groove has a built-in slider. The slider is connected to the first column (43) through the first rope (42).

9. A buoy-based culture system for determining marine primary productivity using black and white bottles, as described in claim 8, characterized in that, The slider has at least two parts, with the ends of the first rope (42) at the ends of the slider connected and connected to the rope above the first column (43).

10. A buoy-based culture system for determining marine primary productivity using black and white bottles according to claim 1, characterized in that, The bottle body (70) has at least one black bottle and one white bottle.

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