A dynamic supervision method and system for marine ranches

Abstract

The present invention provides a dynamic supervision method and system for marine ranches, which relates to the technical field of marine ranch supervision. The specific steps include: collecting biological parameters and environmental parameters of the marine ranch, calculating the biological activity index and the ecological health index, integrating the indexes, performing correlation analysis, generating a comprehensive detection index for reflecting the overall state of the marine ranch, comparing the comprehensive detection index with a preset evaluation threshold, and performing a comprehensive evaluation of the marine ranch. The present invention provides a systematic method for dynamic monitoring of marine ranches by integrating biological parameters and environmental parameters to form a biological activity index and an ecological health index, and performing correlation analysis. Data analysis through dimensionless processing not only improves the comparability of various indicators, but also enables managers to grasp the ecological status of marine ranches in real time and take corresponding measures in a timely manner.

Description

Technical Field

[0001] The present invention relates to the technical field of marine ranch supervision, and in particular to a dynamic supervision method and system for marine ranches. Background Art

[0002] In recent years, marine ranching has attracted widespread attention as an emerging sustainable fishery model. However, with the deterioration of the marine ecological environment, especially the increase in temperature, the increase in pollution and the reduction in biodiversity, traditional marine ranching management methods have become insufficient. The current monitoring system mostly relies on regular manual inspections and static data collection, which is not only inefficient but also often fails to reflect the dynamic changes of the ecosystem in a timely manner. Key biological parameters such as the density, movement speed and number of species of biological populations are often not monitored in real time, resulting in managers' delayed judgment of the ecological status. In addition, changes in environmental parameters such as water temperature, salinity, dissolved oxygen and pH value also lack continuous monitoring, making it difficult to reveal their impact on the biological community. This lack of real-time monitoring not only makes it difficult to grasp the health status of marine ranches, but also often makes the best time to respond to sudden ecological crises missed.

[0003] In addition, existing technologies also have significant deficiencies in data integration and analysis. Usually, various monitoring indicators are often carried out in isolation, lacking effective correlation analysis, and unable to fully understand the interaction between organisms and the environment. This makes it difficult for decision makers to form accurate and comprehensive judgments when assessing the health of marine ranches. Especially in the absence of a scientific assessment framework, fluctuations in a single indicator may be misunderstood as normal changes in the ecology, while ignoring potential ecological threats. Therefore, current marine ranch monitoring and management methods are in urgent need of innovation to achieve systematic and dynamic supervision of biological and environmental factors, thereby ensuring the sustainable use of marine resources and the maintenance of ecological balance.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a dynamic supervision method and system for marine ranches to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A dynamic supervision method and system for marine ranches, the specific steps include:

[0008] Step 1: Collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH;

[0009] Step 2: Generate the biological activity index based on the dimensionless biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; generate the ecological health index based on the dimensionless biological population number, biological species number and water temperature data;

[0010] Step 3: Combine the biological activity index and ecological health index, conduct correlation analysis, and generate a comprehensive detection index to reflect the overall status of the marine ranch;

[0011] Step 4: Compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively assess the ecological status of the marine ranch and guide management decisions.

[0012] The specific logic for collecting biological density is as follows:

[0013] Start the sonar system, cruise in the monitoring area, emit sound waves and record the return signals, use image processing technology to further analyze the sonar data, identify different types of organisms, and count the number of organisms of various organisms, and mark the number of organisms of the i-th organism as N b (i), i is the index of the species, and i∈(1,k), k is the number of species;

[0014] Get the volume V of the monitoring area: Measure the length, width and depth of the monitoring area and calculate the volume:

[0015] V=L*W*H

[0016] Wherein, V is the volume of the monitoring area, L is the length of the monitoring area, W is the width of the monitoring area, and H is the depth of the monitoring area;

[0017] The biomass density was calculated using the following formula:

[0018]

[0019] Among them, D b (i) is the biodensity of the i-th organism;

[0020] The specific logic for collecting the biological movement speed is:

[0021] Videos are taken regularly in the underwater monitoring area to record biological movements, identify the types of organisms and their coordinates, and calculate the displacement of the organism between two shots by analyzing the coordinates of each organism at different time points:

[0022]

[0023] Among them, Δd is the displacement of the organism, (x1, y1, z1) is the coordinate at the first measurement, and (x2, y2, z2) is the coordinate at the second measurement;

[0024] Calculate the time interval between two shots:

[0025] Δt=t2-t1

[0026] Wherein, Δt is the time interval between two shots, t1 is the time of the first shot, and t2 is the time of the second shot;

[0027] The speed of the organism is calculated according to the following formula:

[0028]

[0029] Among them, V b is the movement speed of the organism, Δd is the displacement of the organism, and Δt is the time interval between two shots;

[0030] Calculate the mean movement speed of organisms of the same species and use it as the biological movement speed of the organism. The biological movement speed of the i-th organism is calibrated as V b (i);

[0031] The following formula is used to calculate the biological population:

[0032]

[0033] Among them, N is the number of biological populations.

[0034] Furthermore, the process of collecting the marine ranch environmental parameters is specifically as follows:

[0035] The water temperature, dissolved oxygen, salinity and pH value of the ocean ranch were measured using a water quality monitor, and the measured water temperature was recorded as T, the measured dissolved oxygen was recorded as O2, the measured salinity was recorded as S, and the measured pH value was recorded as P;

[0036] The collected water temperature is compared with the preset temperature assessment threshold. If it exceeds the threshold range, the difference between the current water temperature and the preset threshold is calculated and recorded as ΔT; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index;

[0037] The collected water salinity S is compared with the preset salinity assessment threshold. If it exceeds the threshold range, the difference between the current water salinity and the preset threshold is calculated and recorded as ΔS; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index;

[0038] The collected water pH value is compared with the preset pH assessment threshold. If it exceeds the threshold range, the difference between the current water pH value and the preset threshold is calculated and recorded as ΔP; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index.

[0039] Furthermore, the formula for generating the biological activity index is as follows:

[0040]

[0041] Among them, B a is the biological activity index, O2 is the dissolved oxygen, ΔT is the difference between the water temperature and the preset threshold, ΔS is the difference between the water salinity and the preset threshold, ΔP is the difference between the water pH value and the preset threshold, γ(i) is the preset weight of the i-th organism, and μ, is the preset scale factor, and C1 is the first constant correction index.

[0042] Furthermore, the formula for generating the ecological health index is as follows:

[0043]

[0044] Among them, H e is the ecological health index, N b is the number of biological populations, α is the preset proportional coefficient, k is the number of biological species, β is the preset proportional coefficient, and β>α>0, T is the water temperature, It is an exponential decay function, which indicates the influence of water temperature on the ecological health index. (T-25) indicates the difference between the current temperature and the ideal water temperature of 25 degrees Celsius, and C2 is the second constant correction index.

[0045] Furthermore, the formula for generating the comprehensive detection index is as follows:

[0046]

[0047] Among them, D combined is a comprehensive detection index, B a is the bioactivity index, τ is its preset proportionality coefficient, H e is the ecological health index, ω is its preset proportional coefficient, and ω>τ>0, C3 is the third constant correction index.

[0048] Furthermore, the process of comparing the comprehensive detection index with the preset evaluation threshold is specifically as follows:

[0049] When D combinedWhen ≤0.5DY, it means comprehensive detection index D combined If the fishing rate is significantly lower than the normal range, that is, in the crisis range, a comprehensive assessment should be conducted immediately, and fishing should be suspended, ecological restoration or other protective measures should be taken;

[0050] When 0.5DY <D combined ≤DY, indicating comprehensive test index D combined Slightly below the normal range, that is, in the warning range, it is necessary to strengthen monitoring, assess potential problems, and consider reducing catch or implementing temporary protection measures;

[0051] When D combined >DY, it means comprehensive detection index D combined In the normal range, that is, in the normal range, it indicates that the ecosystem is healthy and biological activities are normal. In this case, the existing fishing and breeding strategies should be maintained;

[0052] Among them, D combined is a comprehensive detection index, and DY is the preset evaluation threshold.

[0053] The present invention further provides a dynamic supervision system for marine ranches, wherein the dynamic supervision system for marine ranches is used to execute the above-mentioned dynamic supervision method for marine ranches, including:

[0054] A data acquisition module is used to collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH;

[0055] The data processing module generates the biological activity index based on the dimensionless processed biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; and generates the ecological health index based on the dimensionless processed biological population number, biological species number and water temperature data;

[0056] The index generation module is used to integrate the biological activity index and the ecological health index, conduct correlation analysis, and generate a comprehensive detection index that reflects the overall status of the marine ranch;

[0057] The dynamic supervision module is used to compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively evaluate the ecological status of the marine ranch and guide management decisions.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] The present invention provides a systematic method for dynamic monitoring of marine ranches by integrating biological parameters and environmental parameters to form a biological activity index and an ecological health index, and performing correlation analysis. The dimensionless data analysis not only improves the comparability of various indicators, but also enables managers to grasp the ecological status of marine ranches in real time and take corresponding measures in a timely manner. The implementation of this solution can improve the management efficiency of marine ranches, promote the sustainable development of the ecological environment, and provide a scientific basis for decision-making, reduce ecological risks, and improve resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the overall method flow of the present invention;

[0061] Figure 2 It is a schematic diagram of the overall system module of the present invention. DETAILED DESCRIPTION

[0062] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0063] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] Example:

[0065] See also Figure 1 , the present invention provides a technical solution:

[0066] A dynamic supervision method for marine ranching, including the following steps:

[0067] Step 1: Collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH;

[0068] In this embodiment,

[0069] The specific logic for collecting biological density is as follows:

[0070] Start the sonar system, cruise in the monitoring area, emit sound waves and record the return signals, use image processing technology to further analyze the sonar data, identify different types of organisms, and count the number of organisms of various organisms, and mark the number of organisms of the i-th organism as N b (i), i is the index of the species, and i∈(1,k), k is the number of species;

[0071] Get the volume V of the monitoring area: Measure the length, width and depth of the monitoring area and calculate the volume:

[0072] V=L*W*H

[0073] Wherein, V is the volume of the monitoring area, L is the length of the monitoring area, W is the width of the monitoring area, and H is the depth of the monitoring area;

[0074] The biomass density was calculated using the following formula:

[0075]

[0076] Among them, D b (i) is the biodensity of the i-th organism;

[0077] The specific logic for collecting the biological movement speed is:

[0078] Videos are taken regularly in the underwater monitoring area to record biological movements, identify the types of organisms and their coordinates, and calculate the displacement of the organism between two shots by analyzing the coordinates of each organism at different time points:

[0079]

[0080] Among them, Δd is the displacement of the organism, (x1, y1, z1) is the coordinate at the first measurement, and (x2, y2, z2) is the coordinate at the second measurement;

[0081] Calculate the time interval between two shots:

[0082] Δt=t2-t1

[0083] Wherein, Δt is the time interval between two shots, t1 is the time of the first shot, and t2 is the time of the second shot;

[0084] The speed of the organism is calculated according to the following formula:

[0085]

[0086] Among them, V b is the movement speed of the organism, Δd is the displacement of the organism, and Δt is the time interval between two shots;

[0087] Calculate the mean movement speed of organisms of the same species and use it as the biological movement speed of the organism. The biological movement speed of the i-th organism is calibrated as V b (i);

[0088] The following formula is used to calculate the biological population:

[0089]

[0090] Among them, N is the number of biological populations.

[0091] The process of collecting the marine ranch environmental parameters is specifically as follows:

[0092] The water temperature, dissolved oxygen, salinity and pH value of the ocean ranch were measured using a water quality monitor, and the measured water temperature was recorded as T, the measured dissolved oxygen was recorded as O2, the measured salinity was recorded as S, and the measured pH value was recorded as P;

[0093] The collected water temperature is compared with the preset temperature assessment threshold. If it exceeds the threshold range, the difference between the current water temperature and the preset threshold is calculated and recorded as ΔT; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index;

[0094] The collected water salinity S is compared with the preset salinity assessment threshold. If it exceeds the threshold range, the difference between the current water salinity and the preset threshold is calculated and recorded as ΔS; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index;

[0095] The collected water pH value is compared with the preset pH assessment threshold. If it exceeds the threshold range, the difference between the current water pH value and the preset threshold is calculated and recorded as ΔP; if it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index.

[0096] Step 1 ensures the comprehensiveness and diversity of data by comprehensively collecting biological and environmental parameters of the marine ranch. This comprehensive monitoring can provide an in-depth understanding of the dynamic changes in the ecosystem and provide a solid foundation for subsequent analysis. Compared with existing technologies, traditional monitoring is often limited to a small number of parameters and lacks comprehensiveness. The implementation of step 1 can capture ecological changes in a timely manner and enhance the ability of dynamic supervision, thereby more effectively identifying potential risks and problems and providing a more accurate basis for management decisions. In this patent scheme, the implementation of step 1 lays the data support for the dynamic supervision method, making the subsequently generated biological activity index and ecological health index more accurate, thereby improving the scientificity and effectiveness of the entire scheme.

[0097] Step 2: Generate the biological activity index based on the dimensionless biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; generate the ecological health index based on the dimensionless biological population number, biological species number and water temperature data;

[0098] In this embodiment, the formula for generating the biological activity index is as follows:

[0099]

[0100] Among them, B a is the biological activity index, O2 is the dissolved oxygen, ΔT is the difference between the water temperature and the preset threshold, ΔS is the difference between the water salinity and the preset threshold, ΔP is the difference between the water pH value and the preset threshold, γ(i) is the preset weight of the i-th organism, and There are six biological species, namely fish, shellfish, marine mammals, crustaceans, plankton and seaweed, and the preset weights are in the following order: fish>shellfish>marine mammals>crustaceans>plankton=seaweed. This is because fish are often a key component of the marine food chain, have important ecological and economic value, and can directly reflect the health of the ecosystem; shellfish play a filtering and cleaning role in the water body, and are also an important source of food, which can affect water quality and ecological balance; although their numbers are relatively small, marine mammals play an important role in the ecosystem and can reflect the health of the ecosystem; crustaceans are usually diverse ecological roles, both predators and herbivores, affecting the food chain and energy flow of the ecosystem; although plankton and seaweed are huge in number, their contribution to the biological activity index is mainly reflected in basic productivity, which is relatively low.

[0101] μ, is the preset scale factor, and This is because biomass density is an important indicator for measuring the number and distribution of biological populations in a specific area. It directly reflects the health, productivity and species diversity of the ecosystem. Compared with water parameters, biomass density can more directly reflect the strength of biological activities. C1 is the first constant correction index. b When it increases, it means that more biological individuals participate in ecological activities, which will increase the overall biological activity of the system and improve the biological activity index; biological movement speed V b The increase is usually directly related to the metabolic rate of organisms. Fast-moving organisms tend to have higher feeding, reproduction and growth rates, thereby enhancing biological activity. Sufficient dissolved oxygen can promote the growth and reproduction of organisms and increase the biological activity index. Therefore, when the dissolved oxygen O2 increases, the biological activity index B aSimilarly, when ΔT, αS or ΔP increases, it means that the water environment is abnormal and not conducive to biological activity. Therefore, the biological activity index B a decreases; that is, D b 、V b , O2 and biological activity index B a There is a positive correlation between ΔT, ΔS, ΔP and the bioactivity index B a There is a negative correlation.

[0102] The formula for generating the ecological health index is as follows:

[0103]

[0104] Among them, H e is the ecological health index, N b is the number of biological populations, α is its preset proportional coefficient, k is the number of biological species, β is its preset proportional coefficient, and β>α>0, because the number of biological species is considered to be a more important indicator because it represents the health and resilience of the ecosystem and is directly related to the diversity and long-term stability of the ecosystem; T is the water temperature, is an exponential decay function, which indicates the effect of water temperature on the ecological health index. (T-25) indicates the difference between the current temperature and the ideal water temperature of 25 degrees Celsius. C2 is the second constant correction index. When the number of biological populations N b When the number of biological species k increases, it means that there is a richer species diversity in the ecosystem, which helps to enhance the stability and resilience of the ecosystem. Diverse species can complement each other's functions, thereby improving the overall biological activity. Therefore, the ecological health index H e Increase; that is, N b , k and ecological health index H e There is a positive correlation.

[0105] Step 3: Combine the biological activity index and ecological health index, conduct correlation analysis, and generate a comprehensive detection index to reflect the overall status of the marine ranch;

[0106] In this embodiment, the formula for generating the comprehensive detection index is as follows:

[0107]

[0108] Among them, D combined is a comprehensive detection index, B a is the bioactivity index, τ is its preset proportionality coefficient, H eis the ecological health index, ω is its preset proportional coefficient, and ω>τ>0. This is because the ecological health index is more comprehensive, involving not only the number of organisms, but also more extensive factors such as biodiversity and ecological functions, reflecting the stability and resilience of the entire ecosystem. C3 is the third constant correction index. When the biological activity index B a Or Ecological Health Index H e When it increases, it indicates that the biodiversity and biological activity level of the marine ecosystem are high, which means that the ecosystem is in good health and helps maintain the ecological balance. combined Increase; that is, B a , H e And comprehensive detection index D combined There is a positive correlation.

[0109] Step 4: Compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively assess the ecological status of the marine ranch and guide management decisions;

[0110] In this embodiment, the process of comparing the comprehensive detection index with the preset evaluation threshold is specifically as follows:

[0111] When D combined When ≤0.5DY, it means comprehensive detection index D combined If the fishing rate is significantly lower than the normal range, that is, in the crisis range, a comprehensive assessment should be conducted immediately, and fishing should be suspended, ecological restoration or other protective measures should be taken;

[0112] When 0.5DY <D combined ≤DY, indicating comprehensive test index D combined Slightly below the normal range, that is, in the warning range, it is necessary to strengthen monitoring, assess potential problems, and consider reducing catch or implementing temporary protection measures;

[0113] When D combined >DY, it means comprehensive detection index D combined In the normal range, that is, in the normal range, it indicates that the ecosystem is healthy and biological activities are normal. In this case, the existing fishing and breeding strategies should be maintained;

[0114] Among them, D combined is a comprehensive detection index, and DY is the preset evaluation threshold.

[0115] Step 4 provides a systematic evaluation mechanism by comparing the comprehensive detection indicators with the preset evaluation thresholds. This method can effectively identify the ecological status of the marine ranch and determine whether it is in a healthy state or requires intervention, thereby providing managers with a clear basis for decision-making; compared with existing technologies, traditional methods often lack dynamic and systematic evaluation mechanisms, which can easily lead to misjudgment of ecological conditions. The implementation of step 4 can conduct scientific evaluations through quantitative comprehensive indicators, thereby improving the accuracy and flexibility of monitoring, timely identifying potential ecological problems and taking corresponding measures. In this patent scheme, the implementation of step 4 not only enhances the scientific nature of the overall scheme, but also makes management decisions more based on data and facts.

[0116] See also Figure 2 The present invention also provides a dynamic monitoring system for marine ranches, including:

[0117] A data acquisition module is used to collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH;

[0118] The data processing module generates the biological activity index based on the dimensionless processed biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; and generates the ecological health index based on the dimensionless processed biological population number, biological species number and water temperature data;

[0119] The index generation module is used to integrate the biological activity index and the ecological health index, conduct correlation analysis, and generate a comprehensive detection index that reflects the overall status of the marine ranch;

[0120] The dynamic supervision module is used to compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively evaluate the ecological status of the marine ranch and guide management decisions.

[0121] α, β, γ, μ, τ, in the formula The specific values ​​of and ω are generally determined by those skilled in the art according to actual conditions. The technicians in this field collect multiple groups of sample data, set corresponding preset proportional coefficients for each group of sample data, substitute the preset proportional coefficients and the collected sample data into the formula, observe the accuracy of the model output and the rationality of the results through repeated experiments and parameter adjustments, gradually adjust these factor coefficients, and compare the performance and effect of the model under different parameter settings to find the optimal coefficient combination, screen the calculated factor coefficients and take the average, and obtain α, β, γ, μ, τ, and the value of ω.

[0122] In addition, the size of the preset factor coefficient is to quantify each parameter to obtain a specific value. In order to facilitate subsequent comparison, the size of the coefficient depends on the amount of sample data and the preset proportional coefficient initially set by technical personnel in this field for each set of sample data. It is not unique as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0123] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0124] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented by software, the above embodiments may be implemented in whole or in part in the form of a computer program product. Those skilled in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software methods depends on the specific application and design constraints of the technical solution.

[0125] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0126] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A dynamic supervision method for marine ranches, characterized in that: The specific steps include: Step 1: Collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH; Step 2: Generate the biological activity index based on the dimensionless biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; generate the ecological health index based on the dimensionless biological population number, biological species number and water temperature data; Step 3: Combine the biological activity index and ecological health index, conduct correlation analysis, and generate a comprehensive detection index to reflect the overall status of the marine ranch; Step 4: Compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively assess the ecological status of the marine ranch and guide management decisions; The formula for generating the comprehensive detection index is as follows: Among them, D combined is a comprehensive detection index, B a is the bioactivity index, τ is its preset proportionality coefficient, H e is the ecological health index, ω is its preset proportional coefficient, and ω>τ>0, C3 is the third constant correction index.

2. A dynamic supervision method for marine ranching according to claim 1, characterized in that: The specific logic for collecting biological density is as follows: Start the sonar system, cruise in the monitoring area, emit sound waves and record the return signals, use image processing technology to further analyze the sonar data, identify different types of organisms, and count the number of organisms of various organisms, and mark the number of organisms of the i-th organism as N b (i), i is the index of the species, and i∈(1,k), k is the number of species; Get the volume V of the monitoring area: Measure the length, width and depth of the monitoring area and calculate the volume: V=L*W*H Wherein, V is the volume of the monitoring area, L is the length of the monitoring area, W is the width of the monitoring area, and H is the depth of the monitoring area; The biomass density was calculated using the following formula: Among them, D b (i) is the biodensity of the i-th organism; The specific logic for collecting the biological movement speed is: Videos are taken regularly in the underwater monitoring area to record biological movements, identify the types of organisms and their coordinates, and calculate the displacement of the organism between two shots by analyzing the coordinates of each organism at different time points: Among them, Δd is the displacement of the organism, (x1, y1, z1) is the coordinate at the first measurement, and (x2, y2, z2) is the coordinate at the second measurement; Calculate the time interval between two shots: Δt=t2-t1 Wherein, Δt is the time interval between two shots, t1 is the time of the first shot, and t2 is the time of the second shot; The speed of the organism is calculated according to the following formula: Among them, V b is the movement speed of the organism, Δd is the displacement of the organism, and Δt is the time interval between two shots; Calculate the mean movement speed of organisms of the same species and use it as the biological movement speed of the organism. The biological movement speed of the i-th organism is calibrated as V b (i); The following formula is used to calculate the biological population: Among them, N is the number of biological populations.

3. A dynamic supervision method for marine ranching according to claim 1, characterized in that: The process of collecting the marine ranch environmental parameters is specifically as follows: The water temperature, dissolved oxygen, salinity and pH value of the ocean ranch were measured using a water quality monitor, and the measured water temperature was recorded as T, the measured dissolved oxygen was recorded as O2, the measured salinity was recorded as S, and the measured pH value was recorded as P; The collected water temperature is compared with the preset temperature assessment threshold. If it exceeds the threshold range, the difference between the current water temperature and the preset threshold is calculated and recorded as ΔT; If it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index; The collected water salinity S is compared with the preset salinity assessment threshold. If it exceeds the threshold range, the difference between the current water salinity and the preset threshold is calculated and recorded as ΔS; If it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index; The collected water pH value is compared with the preset pH assessment threshold. If it exceeds the threshold range, the difference between the current water pH value and the preset threshold is calculated and recorded as ΔP; If it does not exceed the threshold range, it will not be included in the subsequent calculation of the biological activity index.

4. A dynamic supervision method for marine ranching according to claim 2, characterized in that: The formula for generating the biological activity index is as follows: Among them, B a is the biological activity index, O2 is the dissolved oxygen, ΔT is the difference between the water temperature and the preset threshold, ΔS is the difference between the water salinity and the preset threshold, ΔP is the difference between the water pH value and the preset threshold, γ(i) is the preset weight of the i-th organism, and μ, is the preset scale factor, and C1 is the first constant correction index.

5. The dynamic supervision method for marine ranching according to claim 1 is characterized in that: The formula for generating the ecological health index is as follows: Among them, H e is the ecological health index, N b is the number of biological populations, α is the preset proportional coefficient, k is the number of biological species, β is the preset proportional coefficient, and β>α>0, T is the water temperature, It is an exponential decay function, which indicates the influence of water temperature on the ecological health index. (T-25) indicates the difference between the current temperature and the ideal water temperature of 25 degrees Celsius, and C2 is the second constant correction index.

6. The dynamic supervision method for marine ranching according to claim 1 is characterized in that: The process of comparing the comprehensive detection index with the preset evaluation threshold is specifically as follows: When D combined When ≤0.5DY, it means comprehensive detection index D combined If the fishing rate is significantly lower than the normal range, that is, in the crisis range, a comprehensive assessment should be conducted immediately, and fishing should be suspended, ecological restoration or other protective measures should be taken; When 0.5DY <D combined ≤DY, indicating comprehensive test index D combined Slightly below the normal range, that is, in the warning range, it is necessary to strengthen monitoring, assess potential problems, and consider reducing catch or implementing temporary protection measures; When D combined >DY, it means comprehensive detection index D combined In the normal range, that is, in the normal range, it indicates that the ecosystem is healthy and biological activities are normal. In this case, the existing fishing and breeding strategies should be maintained; Among them, D combined is a comprehensive detection index, and DY is the preset evaluation threshold.

7. A dynamic monitoring system for marine ranches, characterized by: The dynamic supervision system for marine ranches is used to execute the dynamic supervision method for marine ranches according to any one of claims 1 to 6, including: A data acquisition module is used to collect biological parameters and environmental parameters of the marine ranch, wherein the biological parameters specifically include biological density, biological movement speed, biological population number and biological species number, and the environmental parameters specifically include water temperature, salinity, dissolved oxygen and pH; The data processing module generates the biological activity index based on the dimensionless processed biological density, biological movement speed, water temperature, salinity, dissolved oxygen and pH data; and generates the ecological health index based on the dimensionless processed biological population number, biological species number and water temperature data; The index generation module is used to integrate the biological activity index and the ecological health index, conduct correlation analysis, and generate a comprehensive detection index that reflects the overall status of the marine ranch; The dynamic supervision module is used to compare the comprehensive detection indicators with the preset assessment thresholds, and based on the comparison results, comprehensively evaluate the ecological status of the marine ranch and guide management decisions.

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