Phytoplankton community regulation and control device and method based on multi-parameter monitoring

Abstract

The invention discloses a phytoplankton community regulation and control device and method based on multi-parameter monitoring, and belongs to the technical field of aquaculture. The device comprises a floating body, a phytoplankton monitoring module and a water quality sensor are arranged below the floating body, and an illumination adjusting module is arranged above the floating body. The illumination adjusting module is composed of a rotatable reflecting plate and is provided with a light sensor. The device is provided with a data analysis module which can analyze collected data, and after regulation and control suggestions are generated, the regulation and control execution module dynamically regulates nutrient salt or illumination conditions. The method aims at optimizing the ecological environment of a culture water area and improving the stability of a phytoplankton community structure, dynamic optimization of the phytoplankton community is achieved through closed-loop monitoring, analysis and regulation and control processes, a stable bait source is provided for chlamys farreri, and culture benefits and ecological sustainability are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a device and method for regulating phytoplankton communities based on multi-parameter monitoring. Background Technology

[0002] Currently, in the large-scale scallop aquaculture industry, phytoplankton serves as the basic food organism, and the stability of its community structure directly affects the aquaculture efficiency. Traditional aquaculture models mainly rely on experience-based management, which has significant limitations: First, phytoplankton monitoring using manual sampling methods is not only time-consuming and labor-intensive, but also fails to reflect the dynamic changes of phytoplankton in the water in a timely manner; second, the regulation of light and nutrients lacks scientific basis, often leading to an imbalance in algal community structure, the occurrence of harmful algal blooms, or insufficient food biomass; third, existing aquaculture equipment mostly focuses on monitoring single water quality parameters, lacking the ability to conduct synergistic analysis of phytoplankton communities and multiple environmental factors.

[0003] In recent years, some aquaculture equipment has begun to apply online water quality monitoring technology. For example, US20240272134A1 discloses a suspended self-balancing self-cruising online water quality monitoring device, an online water quality monitoring method, and an online water quality assessment method. However, the existing technologies still have significant shortcomings in practical applications: on the one hand, monitoring data is disconnected from control measures, making it difficult to respond promptly to environmental changes; on the other hand, they lack intelligent identification and quantitative analysis functions for phytoplankton communities, making precise control impossible. Especially in large-scale aquaculture waters, traditional methods struggle to address issues such as uneven nutrient distribution and inaccurate light control, leading to low feed utilization and increased aquaculture costs.

[0004] Therefore, developing a phytoplankton community management system that integrates real-time monitoring, intelligent analysis, and precise control has become a key technological requirement for improving the sustainable development of scallop aquaculture. Summary of the Invention

[0005] The purpose of this invention is to provide a method for optimizing the phytoplankton community structure in scallop aquaculture waters using intelligent control technology. This method employs a phytoplankton monitoring module, water quality sensors, and light regulation devices to collect data, dynamically adjust the aquaculture environment, achieve phytoplankton community balance, and improve aquaculture efficiency and ecological sustainability.

[0006] To address the aforementioned technical problems, this invention provides the following technical solution: a phytoplankton community regulation device based on multi-parameter monitoring, comprising a float, a phytoplankton monitoring module and a water quality sensor located below the float, and a light regulation module located above the float. The main body of the light regulation module is a rotatable and suspended reflector, and the reflector is equipped with a light sensor for detecting the direction of light. The light regulation module is connected to a data analysis module and a regulation execution module within the float. By integrating the float, the phytoplankton monitoring module, the water quality sensor, and the light regulation module, precise regulation of the phytoplankton community in aquaculture waters is achieved. The phytoplankton monitoring module can monitor the species, quantity, and distribution of phytoplankton in real time, providing data support for subsequent regulation; the water quality sensor can detect key parameters such as water temperature, salinity, dissolved oxygen, and nutrients; the light regulation module dynamically adjusts the light conditions through the rotatable reflector and the light sensor, thereby optimizing the photosynthetic efficiency of phytoplankton. The phytoplankton monitoring module, water quality sensor, and light sensor are all electrically connected to the data analysis module. This allows for the analysis of the correlation between phytoplankton community structure and water quality parameters, generating control recommendations. The control execution module, based on these recommendations, optimizes the phytoplankton community composition by adjusting light conditions. This device effectively enhances the ecological stability of scallop aquaculture areas, promotes balanced phytoplankton growth, provides high-quality feed for scallops, and ultimately improves aquaculture efficiency.

[0007] Specifically, the floating structure includes a tank to hold the nutrient solution, with an outlet pipe at the bottom connected to a circulation pump. The circulation pump design avoids the problem of excessively high or low local concentrations of nutrients, ensuring that phytoplankton can absorb nutrients evenly. Simultaneously, the operation of the circulation pump improves water flow and prevents nutrient deposition. This technical solution not only improves nutrient utilization but also reduces the frequency of human intervention, facilitating the regulation of phytoplankton communities.

[0008] Specifically, the phytoplankton monitoring module and water quality sensor are connected to the data analysis module and the control execution module. In this way, phytoplankton data and water quality parameters can be transmitted to the data analysis module in real time. The data analysis module uses algorithms to analyze the correlation between the phytoplankton community and water quality factors, generating control suggestions. The control execution module then quickly adjusts the nutrient input according to the suggestions, forming a closed-loop control system. This invention significantly improves the timeliness and accuracy of phytoplankton community control in scallop aquaculture waters, avoiding the control failure problem caused by data lag in traditional aquaculture, and providing technical support for the dynamic balance of the phytoplankton community.

[0009] Specifically, the float is equipped with infrared sensors and a motion control module. The infrared sensors can detect changes in the surrounding environment and the thermal signals of obstacles around the float (such as aquaculture cages and boats), adjusting its position in conjunction with the motion control module. Additionally, the infrared sensors can identify areas with dense phytoplankton, assisting the underwater camera's visual monitoring and compensating for the limitations of optical monitoring in turbid water. The motion control module can adjust the float's position or the angle of the lighting adjustment module according to environmental changes, ensuring the device is always in optimal working condition.

[0010] Specifically, the phytoplankton monitoring module includes a lifting platform and an underwater camera. The lifting platform is connected to the bottom of the buoy and fixed to the underwater camera, which is used to collect images of phytoplankton. The lifting platform can adjust the depth of the underwater camera as needed to cover the distribution of phytoplankton at different water layers.

[0011] Specifically, the underwater camera is connected to an image recognition unit, which is used to identify phytoplankton species and count their densities. The image data collected by the underwater camera is processed by the image recognition unit, which can quickly identify phytoplankton species and count their densities, providing a reliable data source for the data analysis module and making the regulation of phytoplankton communities more scientific and precise.

[0012] Preferably, the float is fitted with a horizontal second rotating shaft, which is connected to the reflector of the light adjustment module, allowing the reflector to rotate around the second rotating shaft. This invention, through the design of the second rotating shaft, enables flexible rotation of the reflector of the light adjustment module. The reflector can adjust its angle according to the detection results of the light sensor, changing its projection shading area on the water surface to match the light requirements of phytoplankton and optimize lighting conditions. This design allows the reflector to respond quickly to changes in light intensity, ensuring that phytoplankton receive suitable light intensity, thereby improving their photosynthetic efficiency.

[0013] More preferably, the float is fitted with a horizontal second rotating shaft, which is connected to a rod. The rod can rotate around the second rotating shaft, and the rod is movably connected to a first rotating shaft, allowing the first rotating shaft to slide up and down along the rod. The first rotating shaft connects to a reflector and a folding reflector, which can be suspended at at least two angles. The reflector can not only rotate around the second rotating shaft but also slide up and down along the rod, while the folding reflector can be fixed at multiple angles. This design allows the lighting adjustment module to flexibly control the lighting conditions of large-area aquaculture water bodies: the rotating shaft design can adapt to the lighting needs under different times and weather conditions, precisely controlling the lighting area and duration. For example, on cloudy days or in the evening when there is insufficient light, the reflector angle can be adjusted based on data from the light sensor to reduce the duration of shading and allow more oblique light to enter the water. Through vertical linear displacement adjustment, the height position of the shading plate can be dynamically changed according to changes in the solar altitude angle. For example, the device can be lowered when the solar altitude angle is large at noon in summer and the surface water requires strong shading.

[0014] The methods for controlling phytoplankton communities in scallop aquaculture waters include the following steps: The phytoplankton monitoring module and water quality sensor monitor the phytoplankton community and water quality parameters, respectively. The data analysis module analyzes the correlation between dominant phytoplankton species and water quality factors; The lighting adjustment module adjusts the lighting conditions; The data analysis module analyzes the correlation between dominant phytoplankton species and light intensity; The regulation and execution module dynamically adjusts nutrients or light based on the analysis results to optimize the phytoplankton community structure.

[0015] The beneficial effects of this invention are as follows: By integrating a phytoplankton monitoring module, a water quality sensor, and a light regulation module, this invention constructs a closed-loop dynamic regulation system for phytoplankton communities, significantly improving the ecological stability and aquaculture efficiency of scallop farming areas. Firstly, by real-time monitoring of phytoplankton species, density, and water quality parameters, combined with a data analysis module, precise regulation of the phytoplankton community is achieved, avoiding the lag and blindness of traditional experience-based management. Secondly, the light regulation module, through a rotatable reflector and folding design, dynamically optimizes light conditions, improving the photosynthetic efficiency of phytoplankton while inhibiting the excessive proliferation of harmful algae. Furthermore, the design of the circulating flow pump and nutrient tank ensures uniform nutrient distribution, improves feed utilization, and reduces aquaculture costs. The addition of infrared sensors and a motion control module further enhances the adaptability and automation level of the device, enabling it to cope with complex environmental changes. Attached Figure Description

[0016] 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 in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a phytoplankton community regulation device based on multi-parameter monitoring according to the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the float described in Embodiment 1.

[0019] Figure 3 This is a schematic diagram of the layout of the phytoplankton monitoring module described in Example 1.

[0020] Figure 4 This is a schematic diagram of the light adjustment module described in Embodiment 1 when the light is insufficient.

[0021] Figure 5 This is a schematic diagram of the light adjustment module described in Embodiment 1 when there is sufficient light.

[0022] Figure 6 This is a schematic diagram of the phytoplankton monitoring module described in Embodiment 3.

[0023] Explanation of reference numerals in the attached diagram: 1-Float; 2-Box; 21-Circulation pump; 3-Light adjustment module; 31-Folding reflector; 32-First rotating shaft; 33-Rod; 34-Second rotating shaft; 4-Infrared sensor; 5-Phytoplankton monitoring module; 51-Lifting plate; 52-Underwater camera; 53-Guide plate; 54-Counterweight; 6-Data analysis module; 7-Control and execution module; 8-Motion control module; 9-Water quality sensor. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Example 1 Figures 1 to 3The diagram illustrates a phytoplankton community control device based on multi-parameter monitoring. It includes a float 1, with a phytoplankton monitoring module 5 and a water quality sensor 9 located below the float 1. A light adjustment module 3 is located above the float 1. The main body of the light adjustment module 3 is a rotatable and hovering reflector, equipped with a light sensor to detect the direction of light. The light adjustment module 3 is connected to a data analysis module 6 and a control execution module 7 within the float 1. By integrating the float 1, the phytoplankton monitoring module 5, the water quality sensor 9, and the light adjustment module 3, precise control of the phytoplankton community in aquaculture waters is achieved. The phytoplankton monitoring module 5 can monitor the species, quantity, and distribution of phytoplankton in real time, providing data support for subsequent control. The water quality sensor 9 can detect key parameters such as water temperature, salinity, dissolved oxygen, and nutrients. The light adjustment module 3 dynamically adjusts the light conditions through the rotatable reflector and the light sensor, thereby optimizing the photosynthetic efficiency of phytoplankton. The phytoplankton monitoring module 5, water quality sensor 9, and light sensor are all electrically connected to the data analysis module 6. These components analyze the correlation between phytoplankton community structure and water quality parameters, generating control recommendations. The control execution module 7, based on the recommendations from the data analysis module 6, optimizes the phytoplankton community composition by adjusting light conditions. This device effectively enhances the ecological stability of the scallop aquaculture area, promotes balanced phytoplankton growth, provides high-quality feed for the scallops, and ultimately improves aquaculture efficiency.

[0027] Specifically, the floating body 1 contains a tank 2 for holding the nutrient solution. The bottom of the tank 2 has an outlet pipe connected to a circulation pump 21. The design of the circulation pump 21 avoids the problem of excessively high or low local concentrations of nutrients, ensuring that phytoplankton can absorb nutrients evenly. Simultaneously, the operation of the circulation pump 21 improves water flow and prevents nutrient deposition. This technical solution not only improves the utilization rate of nutrients but also reduces the frequency of human intervention, providing convenience for the regulation of phytoplankton communities.

[0028] Specifically, the phytoplankton monitoring module 5 and the water quality sensor 9 are connected to the data analysis module 6 and the control execution module 7. In this way, phytoplankton data and water quality parameters can be transmitted to the data analysis module 6 in real time. The data analysis module 6 analyzes the correlation between the phytoplankton community and water quality factors through algorithms, generates control suggestions, and the control execution module 7 quickly adjusts the nutrient input according to the suggestions, forming a closed-loop control system. This invention significantly improves the timeliness and accuracy of phytoplankton community control in scallop aquaculture waters, avoids the control failure problem caused by data lag in traditional aquaculture, and provides technical support for the dynamic balance of phytoplankton communities.

[0029] Specifically, the float 1 is equipped with an infrared sensor 4 and a motion control module 8. The infrared sensor 4 can detect changes in the surrounding environment and detect the thermal signals of obstacles (such as aquaculture cages and boats) around the float 1, adjusting its position in conjunction with the motion control module 8. Additionally, the infrared sensor 4 can identify areas with dense phytoplankton, assisting the visual monitoring of the underwater camera 52 and compensating for the limitations of optical monitoring in turbid water. The motion control module 8 can adjust the position of the float 1 or the angle of the illumination adjustment module 3 according to environmental changes, ensuring the device is always in optimal working condition.

[0030] Specifically, the phytoplankton monitoring module 5 includes a lifting plate 51 and an underwater camera 52. The lifting plate 51 is connected to the bottom of the float 1 and fixed to the underwater camera 52, which is used to collect images of phytoplankton. The lifting plate 51 can adjust the depth of the underwater camera as needed to cover the distribution of phytoplankton at different water layers.

[0031] Specifically, the underwater camera 52 is connected to an image recognition unit, which is used to identify phytoplankton species and count their densities. The image data collected by the underwater camera 52 is processed by the image recognition unit, which can quickly identify phytoplankton species and count their densities, providing a reliable data source for the data analysis module 6 and making the regulation of phytoplankton communities more scientific and precise.

[0032] Preferably, the float 1 is fitted with a horizontal second rotating shaft 34, which connects to the reflector of the light adjustment module 3, allowing the reflector to rotate around the second rotating shaft 34. This design of the second rotating shaft 34 enables flexible rotation of the reflector of the light adjustment module 3. The reflector can adjust its angle based on the detection results of the light sensor, changing its projection area on the water surface to match the light requirements of phytoplankton and optimize lighting conditions. This design allows the reflector to respond quickly to changes in light intensity, ensuring that phytoplankton receive appropriate light intensity, thereby improving their photosynthetic efficiency.

[0033] More preferably, the float 1 is fitted with a horizontal second rotating shaft 34, which is connected to a rod 33. The rod 33 can rotate around the second rotating shaft 34. The rod 33 is movably connected to a first rotating shaft 32, allowing the first rotating shaft 32 to slide up and down along the rod 33. The first rotating shaft 32 connects a reflector and a folding reflector 31, which can be suspended at at least two angles. The reflector can not only rotate around the second rotating shaft 34 but also slide up and down along the rod 33, while the folding reflector 31 can be fixed at multiple angles. This design enables the light adjustment module 3 to flexibly control the lighting conditions of large-area aquaculture waters: the rotating shaft design can adapt to the lighting needs under different times and weather conditions, and precisely control the lighting area and duration. For example, when it is cloudy or there is insufficient light in the evening, the angle of the reflector can be adjusted in combination with the data of the light sensor to reduce the duration of shading and allow more oblique light to enter the water. Through the vertical linear displacement adjustment, the height position of the shading plate can be dynamically changed according to the change of the solar altitude angle. For example, the device can be lowered when the solar altitude angle is large at noon in summer and the surface water needs strong shading.

[0034] Example 2: Based on the device of Example 1, the method for regulating phytoplankton communities in scallop aquaculture waters includes the following steps.

[0035] S1. Phytoplankton monitoring module 5 and water quality sensor 9 monitor phytoplankton community and water quality parameters respectively; S2. Data Analysis Module 6 analyzes the correlation between dominant phytoplankton species and water quality factors; S3. Lighting adjustment module 3 adjusts lighting conditions; S4. Data Analysis Module 6 analyzes the correlation between dominant phytoplankton species and light intensity; S5. Regulation and execution module 7 dynamically adjusts nutrients or light based on analysis results to optimize phytoplankton community structure.

[0036] This invention achieves dynamic optimization of phytoplankton communities through a closed-loop process of monitoring, analysis, and control. The dynamic adjustment of the light regulation module 3 further optimizes the matching degree between the phytoplankton community and light conditions. After the data analysis module 6 analyzes the correlation between dominant phytoplankton species, nutrient input, and light, the container 2 can adjust the amount of nutrient input, and the light regulation module 3 can adjust the duration or area of ​​light (see [link]). Figure 4 and Figure 5 This method ensures that the target phytoplankton receives adequate nutrients and suitable light. It can quickly respond to environmental changes, promote the growth of target phytoplankton, provide a stable food source for scallops, and ultimately improve aquaculture efficiency and ecological sustainability.

[0037] Example 3: Further optimization based on Example 1.

[0038] like Figure 6 The phytoplankton monitoring module 5 is equipped with a flow guide plate 53, which is tilted at 15° to 30° to guide the water flow and prevent equipment shaking caused by lateral eddies. By optimizing the fluid flow path, the flow guide plate 53 effectively reduces turbulence, eddies, and flow resistance, thereby significantly improving the stability of the underwater camera.

[0039] The lifting plate 51 is connected to the drive assembly to achieve vertical lifting movement, and is also movably connected to the slide rail, allowing it to move horizontally along the slide rail to adapt to monitoring needs at different locations. Preferably, the lifting plate 51 is connected to the drive assembly via a lifting support column, and preferably, an elastic layer is provided between the lifting plate 51 and the lifting support column. The elastic layer can effectively absorb vibrations caused by the movement of the light adjustment module 3 or the impact of water flow, and dissipate low-frequency energy through damping, further reducing the shaking of the phytoplankton monitoring module 5 and ensuring the clarity of image acquisition. Preferably, the lifting plate 51 is connected to a counterweight 54, which contains hydraulic oil and has channels or valves inside. The counterweight 54 uses its own inertia to resist the movement caused by mechanical vibration and absorbs and dissipates mechanical vibration energy through the viscous resistance of the internal liquid, thus maintaining stability. When the liquid flows through the channels or valves, fluid friction is generated, converting kinetic energy into heat energy, thereby achieving vibration reduction and effectively filtering high-frequency disturbances such as waves and eddies. This design, through the synergistic effect of viscous damping, elastic buffering, and guide vanes, suppresses vertical wave impact and lateral eddy vibration, providing a stable working platform for underwater optical monitoring.

[0040] It should be noted that the terminology used in this application is for the purpose of describing specific embodiments only and is not intended to limit the scope of this application. As shown in this specification, unless the context clearly indicates otherwise, words such as "a," "an," "an," and / or "the" do not specifically refer to the singular and may include the plural. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element.

[0041] 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.

[0042] 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 may make some modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but these should still be regarded as the technology or embodiments that are substantially the same as the present invention. 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 phytoplankton community regulation device based on multi-parameter monitoring, comprising a float (1), characterized in that, The phytoplankton monitoring module (5) and water quality sensor (9) are provided below the float (1). The light adjustment module (3) is provided above the float (1). The main body of the light adjustment module (3) is a rotatable and hovering reflector. The reflector is equipped with a light sensor for detecting the direction of light. The light adjustment module (3) is connected to the data analysis module (6) and the control execution module (7) inside the float (1).

2. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The float (1) is provided with a box (2) for holding nutrient salt solution. The bottom of the box (2) is provided with a water outlet pipe, which is connected to a circulating flow pump (21).

3. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The phytoplankton monitoring module (5) and the water quality sensor (9) are connected to the data analysis module (6) and the regulation execution module (7).

4. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The float (1) is equipped with an infrared sensor (4) and a motion control module (8).

5. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The phytoplankton monitoring module (5) includes a lifting plate (51) and an underwater camera (52). The lifting plate (51) is connected to the bottom of the float (1) and fixed to the underwater camera (52). The underwater camera (52) is used to collect images of phytoplankton.

6. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 5, characterized in that, The underwater camera (52) is connected to an image recognition unit, which is used to identify phytoplankton species and count their density.

7. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The float (1) is fitted with a horizontal second rotating shaft (34), which is connected to the reflector of the light adjustment module (3), so that the reflector can rotate around the second rotating shaft (34).

8. The phytoplankton community regulation device based on multi-parameter monitoring according to claim 1, characterized in that, The float (1) is fitted with a horizontal second rotating shaft (34), the second rotating shaft (34) is connected to a rod (33), the rod (33) can rotate around the second rotating shaft (34), the rod (33) is movably connected to a first rotating shaft (32) so that the first rotating shaft (32) can slide up and down along the rod (33), the first rotating shaft (32) is connected to a reflector and a folding reflector (31), the folding reflector (31) can be suspended at at least two angles.

9. A method for regulating phytoplankton communities based on multi-parameter monitoring, characterized in that, The apparatus according to any one of claims 1-8 comprises the following steps: The phytoplankton monitoring module (5) and the water quality sensor (9) monitor the phytoplankton community and water quality parameters, respectively; The data analysis module (6) analyzes the correlation between dominant phytoplankton species and water quality factors; The regulation and execution module (7) dynamically adjusts nutrients or light based on the analysis results to optimize the phytoplankton community structure.

10. A method for regulating phytoplankton communities based on multi-parameter monitoring according to claim 9, characterized in that, After analyzing the correlation between dominant phytoplankton species and water quality factors, the data analysis module (6) further includes: Lighting adjustment module (3) adjusts lighting conditions; The data analysis module (6) analyzes the correlation between dominant phytoplankton species and light intensity.

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