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187 results about "Plankton" patented technology

Plankton are the diverse collection of organisms that live in large bodies of water and are unable to swim against a current. The individual organisms constituting plankton are called plankters. They provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales.

Algae community structure change prediction algorithm and system based on multi-source data fusion

The invention relates to the cross technical field of artificial intelligence and environment monitoring, and discloses an algal community structure change prediction algorithm and system based on multi-source data fusion, and the algorithm comprises the steps: obtaining water quality, weather and plankton multi-source time sequence data; performing time alignment and missing value interpolation; eliminating and screening key environment factors through recursive features; performing dynamic weighted fusion on the multi-modal features by using a space-time attention mechanism; inputting a three-layer stacked LSTM network to output future algae dominant species abundance prediction; and model parameters are corrected on line based on measured data. The system comprises a multi-source data acquisition module, a preprocessing module, a key factor extraction module, a space-time attention fusion module, a dynamic prediction module and an adaptive correction module. According to the method, the prediction accuracy and stability are remarkably improved, and algal bloom early warning and ecological regulation are effectively supported.
Owner:FUJIAN AGRI & FORESTRY UNIV +1

Device for sampling plankton in water

The utility model relates to the technical field of ecological environment detection, in particular to an underwater plankton sampling device which comprises a main body, a sampling driving component is arranged in the main body, and a control collecting component is fixedly connected in the main body; according to the utility model, the sampling depth can be accurately controlled by utilizing the depth sensor, in order to meet different research requirements, the tube wheel is driven by the motor to wind the sinking tube, and the automatic control driving mechanism can quickly complete sampling and can drive the sampling barrel to move up and down in water to realize sampling at different depths, so that the sampling efficiency is improved. The microprocessor is used for controlling the operation of the depth control mechanism and the driving mechanism, automatic sampling is realized, the inner wall of the sampling barrel is smooth, attachment and damage of plankton in the sampling process are avoided, automatic sampling is realized through the control unit, the operation is simple, and the use is easy; the sample collection container can be used for storing sampled plankton samples, so that the samples are prevented from being polluted.
Owner:SHAANXI WATER CONSERVANCY & ELECTRIC POWER SURVEY & DESIGN INSTITUTE (GROUP) CO LTD

Method for predicting abundance of plankton by using marine ecological observation data

The invention discloses a method for predicting abundance of plankton by using marine ecological observation data, which belongs to the technical field of marine organism prediction, and comprises the following steps: collecting multi-source marine environment data to obtain a data set; processing short-term correlation characteristics among variables from the data set to obtain an environmental factor interaction vector; processing the time dynamic change of the environmental factor interaction vector to obtain a plankton abundance change trend; enhancing the association strength of the environmental factor interaction vector and the plankton abundance change trend to obtain a weighted dynamic feature set; extracting subsets having influence on plankton abundance prediction from the weighted dynamic feature set to obtain a prediction feature group; and constructing a regression model according to the prediction feature group, and processing the newly obtained multi-source marine environment data by adopting the regression model to obtain a plankton abundance prediction value. The method for predicting the abundance of the plankton by using the marine ecological observation data solves the problems that the current prediction result is lagged or not accurate enough, and the timeliness and reliability of a decision are influenced.
Owner:ZHUHAI OCEAN CENTER OF THE MINISTRY OF NATURAL RESOURCES (ZHUHAI OCEAN FORECAST STATION OF THE MINISTRY OF NATURAL RESOURCES) +1

Environment-friendly closed-loop ecological breeding method for colored pearls

The invention discloses an environment-friendly closed-loop ecological culture method for colored pearls, which belongs to the technical field of aquaculture and comprises the following steps: S1, selecting and culturing high-quality pearl mussels to form high-quality pearl mussels; s2, cooperatively culturing high-quality pearl mussels, fishes, algae and microbial communities; s3, according to the color requirement of the high-quality pearl mussels, algae, plankton, vegetable protein and a microorganism culture solution are used for preparing feed, the high-quality pearl mussels are fed, and the color and glossiness of pearls are regulated and controlled; s4, collecting breeding data in real time, and adjusting collaborative breeding parameters; according to the color requirement of high-quality pearl mussels, the feed is prepared from algae, plankton, vegetable protein and a microorganism culture solution, the high-quality pearl mussels are fed, nacre layer components secreted by pearl sacs in mussel bodies are affected through natural pigment components in the feed, and therefore the color and glossiness of pearls are regulated and controlled. The active regulation and control of the pearl color and glossiness can be realized.
Owner:姚舜裔

Domestic mini sewage treatment system and sewage treatment method

The present application relates to the field of sewage purification, and discloses a household micro sewage treatment system and a sewage treatment method, which comprises the following steps: building a septic tank; preparing a household micro sewage treatment system, an aeration system and suspended filler for microbial attachment; pumping clarified liquid by a lifting pump, and the clarified liquid enters a contact oxidation zone, and microorganisms degrade COD and BOD in the clarified liquid; the clarified liquid at the contact oxidation zone flows into an electrocoagulation zone, and electrocatalytic flocculation is performed; then, pollutants and phosphorus in the clarified liquid are filtered by a filtering zone, and the clarified liquid forms purified water; the purified water is taken from a water outlet zone, and is used for crop irrigation; or, a landscape zone for breeding aquatic plants or plankton is arranged at the water outlet zone. In the present application, the contact oxidation zone, the electrocoagulation zone, the filtering zone and the water outlet zone are sequentially and continuously arranged from bottom to top, and the arrangement structure of the whole household micro sewage treatment system is compact, and it is more convenient to arrange the system in a separate house environment in rural areas.
Owner:CHENGDU FILTRASCALE TECH

Microbial fermentation chicken manure fish fertilizer for aquaculture and preparation method of microbial fermentation chicken manure fish fertilizer

The invention discloses a microbial fermentation chicken manure fish fertilizer for aquaculture and a preparation method of the microbial fermentation chicken manure fish fertilizer, and belongs to the technical field of agricultural waste resource utilization. The method comprises the following steps: firstly, flushing chicken manure of cage rearing chickens with a photosynthetic bacterium solution and screening out particles; then adding EM bacteria and lactic acid bacteria for composting fermentation; drying the fermentation product; and finally adding zeolite powder loaded with photosynthetic bacteria, mixing and modifying to obtain the final fish fertilizer. Through a unique process of combining multi-strain synergistic fermentation and zeolite powder modification, thorough harmlessness and recycling of the chicken manure are realized. The obtained fish fertilizer not only has comprehensive nutrition and lasting fertilizer efficiency, can effectively promote the growth of plankton in an aquaculture pond, but also has the functions of adsorbing and degrading ammonia nitrogen, hydrogen sulfide and other harmful substances in a water body, and has the remarkable advantages of improving water quality, reducing diseases and increasing the culture yield.
Owner:李兵

Ecological transformation method for inner slope of slope type seawall

The invention relates to the technical field of seawall ecological transformation, and discloses a slope type seawall inner slope ecological transformation method which comprises the following steps: selecting a seawall section suitable for ecological transformation according to three first-level indexes, namely a seawall shoreline foundation, hydrology and water quality conditions and surrounding environment conditions; constructing a pool in the selected seawall section according to the terrain; constructing a pool base; and constructing a plant community in the water pool according to the life type, the phenological period and the salt tolerance of the plant. According to the method, a proper transformation section can be selected in combination with various environmental factors of a transformation area, then a corresponding water pool is constructed in combination with the landform, then a proper ecological material is selected to construct a substrate, and different plant communities are constructed in the water pool according to the characteristics of different plants. A natural-imitated seawall ecological space is built, the flood prevention and tide blocking functions of the seawall are guaranteed, the hygrophytes, aquatic plant communities and planktons can be utilized, an inhabiting and foraging environment is built for aquatic animals and hydrophilic birds, and the ecological service function of the seawall is improved.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Lake and bay habitat maintenance method based on hierarchical calculation

The invention discloses a lake and bay habitat maintenance method based on hierarchical calculation, and relates to the technical field of water ecological environment protection and ecological restoration, the effective water body volume of a lake is accurately calculated by combining terrain scanning with a partition weighted correction formula, and the volume estimation deviation of a traditional method is avoided; on the basis, the existing biomass of the plankton is subjected to layered correction, and the estimation precision of the primary productivity of the lake is improved, so that a scientific basis is provided for the proliferation capacity of filter-feeding fishes. Through water level and water quality dynamic correction and in combination with submerged vegetation population structure regulation and control, vegetation degradation caused by excessive ingestion of fishes can be effectively avoided. Further introducing batch stocking of the snails and the shellfish, constructing a closed-loop mechanism of snail ingestion-plankton reproduction-shellfish filter feeding-fish utilization-vegetation restoration, finally forming a fish, shellfish, snails and grass synergistic ecological balance system, and realizing long-term stable maintenance of the lake and bay habitat.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Total factor monitoring method for marine ranching

The invention discloses a total factor monitoring method for a marine ranch, and belongs to the technical field of ocean engineering and information. The method comprises the following steps: collecting water quality parameters and biological population data in real time; the planktons and pollutants are identified through spectral analysis and chemical sensing, and environmental elements are classified; a sonar and an electronic tag are combined to track a fish trajectory, and dynamic monitoring data are obtained; predicting a red tide probability based on machine learning and outputting risk early warning; continuously updating the model to form multi-element integrated monitoring data; and finally, sorting the key indexes to generate marine ranch key element monitoring framework data. According to the invention, the real-time monitoring capability of the marine ranching environment and the biological state is obviously improved, the ecological risks such as red tide are reduced, and the sustainable development of the marine ranching is ensured.
Owner:GUANGDONG OCEAN UNIVERSITY

Water ecological health assessment method based on sensitive species and community stability

The invention discloses a water ecological health assessment method based on sensitive species and community stability. The method comprises the following steps: step 1, identifying key species and sensitive species; 2, quantifying ecological system stability indexes, and calculating stability attributes based on plankton community composition time and functional time sequence data; step 3, constructing a multi-dimensional evaluation index system; step 4, data standardization processing: carrying out data cleaning, standardization and dimension reduction processing on the multi-dimensional evaluation indexes; 5, determining an index weight based on an entropy weight method; step 6, calculating an ecological health quality index; and step 7, ecological system health state evaluation: according to the ecological health quality index value, evaluating the ecological system health state and carrying out grading so as to provide a basis for management decision making. According to the method, the nutrition cascade effect and the species interaction can be captured; ecological system degradation can be early warned, and the accuracy of ecological health assessment and the pertinence of environment management are improved.
Owner:NANJING UNIV

N-BEATSx plankton prediction method fused with semantic model

The invention relates to an N-BEATSx plankton prediction method fusing a semantic model. The method comprises the following steps: acquiring an observation data set in a current environment; performing multi-scale interpolation processing on the observation data set according to interpolation strategies corresponding to different interval durations to obtain a target observation data set comprising target multi-source environment data and target plankton data; and in the improved N-BEATSx network fused with the semantic model, performing cross attention operation and residual operation on the target multi-source environment data and the target plankton data to obtain a prediction result based on the plankton variation in the current environment. By adopting the method, semantic fusion and dynamic prediction of the environmental data and the biological data can be realized.
Owner:SHENZHEN OASIS LIGHT BIOTECHNOLOGY CO LTD

Marine plankton image segmentation method and system

The invention relates to the technical field of image data processing, in particular to an image segmentation method and system applied to marine plankton. The method comprises the following steps: acquiring an in-situ microscopic image of marine plankton, carrying out binarization processing and connected domain analysis on the in-situ microscopic image, and screening out a biological adhesion block mass to be processed; synchronously extracting the edge contour of the biological adhesion block mass to be processed, and calculating a biological structure integrity score; selecting the candidate segmentation path with the highest biological structure integrity score as an optimal segmentation line; curvature smooth completion is carried out along the optimal segmentation line, and a single biological image is obtained; and inputting the single biological image into a pre-trained classifier to obtain a biological abundance data set. According to the method, high-precision automatic identification and abundance statistics of plankton in a complex marine environment are realized by screening and positioning the adhesion block mass, carrying out adaptive adhesion segmentation and combining multi-dimensional morphological feature classification.
Owner:FIRST INSTITUTE OF OCEANOGRAPHY MNR

Method, system and device for detecting floating algae

The invention relates to a floating algae detection method, system and device. The method comprises the following steps: preprocessing a multi-vision original image sequence to obtain a multi-vision preprocessed image sequence; performing image splicing on the multi-vision preprocessed image sequence according to the boundary features to obtain a panoramic image; carrying out step-by-step edge identification and labeling on the panoramic image by adopting a multi-operator and region growing method to obtain a labeled image; and performing type identification and counting on the floating algae in the labeled image based on a stacked integrated learning method to obtain floating algae biological information. According to the method, image splicing is performed firstly, then edge recognition is performed, and multi-operator step-by-step edge recognition from low precision to high precision is performed on the panoramic image, so that the detection efficiency can be improved; in addition, the types of the floating algae in the annotated image are identified and counted based on the stacked integrated learning method, and the identification accuracy is higher than that of an existing single model.
Owner:陕西省水文水资源勘测中心 +1

Ecological restoration device for promoting assimilation and purification of plankton through direct-drive rotary oxygenation

The invention discloses an ecological restoration device for promoting assimilation and purification of plankton by direct-drive rotary oxygenation in the field of ecological restoration, which comprises an aeration platform, a purification unit, a floating bed for planting aquatic plants and a carrier filler for microbial adsorption, an energy storage unit, a water supply unit, a water supply unit and a water supply unit, comprising a vertical wind driven generator, a solar power generation panel and an energy storage battery, and the control unit comprises a controller and a dissolved oxygen monitoring probe used for monitoring dissolved oxygen in a water body; the energy storage battery supplies energy to the control unit and the air blower. The invention provides an ecological restoration device for promoting assimilation and purification of plankton through direct-drive rotary oxygenation, the device can be directly driven to rotate by using reaction torque of aeration, the device not only can reduce loss of energy conversion, but also can recover energy of aeration airflow, and a controller intelligently controls oxygenation and aeration and adjusts the growth microenvironment of aquatic organisms, so that the ecological restoration device is suitable for ecological restoration of aquatic organisms. The assimilation purification effect is achieved.
Owner:HOHAI UNIV

Integrated automatic imaging and identification analysis device for two insects and plankton in water

The utility model relates to an integrated automatic imaging and identification analysis device for two insects and plankton in water. The integrated automatic imaging and identification analysis device comprises a camera, a fluorescent light source, an electric objective table, a driving mechanism, an objective lens, an electric objective table and a backlight source. The objective lens comprises a two-insect objective lens and a plankton objective lens (switchable), or only the two-insect objective lens is used for switching detection. The two-worm objective lens is 40 times, the floating objective lens is 20 times, or the camera is integrated with the 20 times objective lens. The driving mechanism is diversified and comprises a motor, a guide rail, a synchronous belt, a proximity sensor and a synchronous belt pressing block. The device solves the problems that traditional detection is low in efficiency, poor in accuracy and insufficient in equipment adaptability, automatic imaging and recognition analysis of the two insects and the plankton are achieved, the water resource pollution source monitoring efficiency and quality are improved, and technical support is provided for water ecological environment protection and treatment.
Owner:浙江泰林生命科学有限公司

Method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding

The invention discloses a method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding, and belongs to the technical field of rice, soft-shelled turtle, fish and shrimp comprehensive planting and breeding. After rice in the rice field is harvested, straw is smashed and returned to the field, a hidden survival place is provided for crayfish seedlings, rotten straw and derived zooplankter provide bait for crayfish and fish, and the straw decomposition rate is increased by eating; after water in the rice field module becomes serious along with straw rotting, the water is discharged into the culture pond through tail water treatment engineering treatment, and the water fertility of the pond is increased; meanwhile, after eutrophication of the water body in the culture pond, the water body is discharged into the rice field after being treated by a tail water treatment project and flows into the culture pond again after being further purified by the rice field. According to the constructed mode, the straw is converted into the organic fertilizer through the crayfish and the fish, and the paddy field is adopted for purifying pond culture tail water. No breeding wastewater is discharged in the mode. The investment of aquatic product baits and rice field fertilizers is reduced, and the income and quality of rice and fishes are increased.
Owner:FISHERIES RES INST ANHUI ACAD OF AGRI SCI

Oil-controlling, soothing and repairing composition and preparation method thereof

The invention discloses an oil-controlling, soothing and repairing composition and a preparation method thereof. The oil-controlling, soothing and repairing composition is prepared from a herba portulacae extract, a herba centellae extract, a baropetalum chinense leaf extract and a plankton extract. According to multiple experimental researches, the composition obtained by compounding the extracts has excellent effects of controlling oil, inhibiting activity of propionibacterium acnes, relieving and repairing, is mild and non-irritant, and has a good popularization and application prospect.
Owner:DOCTOR PLANT GUANGDONG BIOTECHNOLOGY CO LTD

River floating algae dredging device

The invention relates to the field of riverway ecological environment management, and discloses a riverway floating algae dredging device which comprises an unmanned ship, an electric push rod is fixedly arranged at the bottom of the unmanned ship, and a mounting plate is fixedly arranged at the bottom of the electric push rod; the plurality of conical hoppers are uniformly arranged on the lower side of the mounting plate and move up and down below the water surface of the river channel through the electric push rod; the plurality of conical hoppers are inwards connected to the suction channel and outwards connected with spiral flow deflectors; one end of the telescopic suction pipe is connected with a suction pump mounted on the unmanned ship, and the other end of the telescopic suction pipe is connected with the suction channel; floating algae and sludge in the conical hopper are sucked into the unmanned ship through a suction pump; a shearing mechanism for cutting off algae is arranged on the cleaning frame, and a crushing assembly for scattering sludge is arranged on the shearing mechanism. By means of the conical hopper and the spiral flow deflector of the conical hopper, the floating algae suction range is enlarged, the floating algae dredging efficiency is improved, meanwhile, the conical hopper is prevented from being blocked due to adhesion of algae plants, and normal operation of sludge suction work is guaranteed.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Sampling device for water quality detection in waterworks

The utility model relates to the technical field of waterworks, in particular to a sampling device for waterworks water quality detection, which comprises a box body and a pipe body, an inner cavity of the box body is riveted with an L-shaped partition plate, the top of the L-shaped partition plate is connected with a water pump through a bolt, and a water inlet pipe of the water pump is communicated with a sampling pipe. A water outlet pipe of the water pump communicates with a first conveying pipe, and the right end of the first conveying pipe communicates with a second conveying pipe. Through cooperation of the L-shaped partition plate, the electric push rod, the frame body and the net bag, the fishing device has the advantage of fishing function, when suspended solids in water need to be fished and sampled, the plugging plate is taken down, then the controller controls the electric push rod to extend, the output end of the electric push rod drives the frame body and the net bag to move leftwards, and the net bag moves to the left side of the box body; and then the user samples and collects granular suspended matters and other floating algae floating in water through the net bag.
Owner:高佳

Method for enhancing adhesion ability of coral larvae after enhancement and release

The invention discloses a method for enhancing adhesion ability of coral larvae after enhancement and release. According to the method, coral larvae (such as coral plankton larvae) are exposed to a 40 mM calcium chloride (CaCl2) solution to be treated for 12-24 hours, and then enhancement and release are carried out. The treated larvae show remarkably enhanced adhesion ability after releasing, the accumulated adhesion rate within 3 days reaches 66.33% and is increased by 240% compared with that of a control group in the same period, and the average survival rate reaches 98.14%. Meanwhile, the transverse growth area and the budding number of attached larvae are remarkably increased, and the density of zooxanthellae, the photosynthetic efficiency and the chlorophyll content have no negative effects. The CaCl2 solution is used for successfully inducing the continuous attachment effect of the coral larvae, the method is easy and convenient to operate, low in cost and environmentally friendly, the attachment success rate of enhancement and release of the coral larvae and the subsequent growth performance of the larvae are remarkably increased, and the method is suitable for repairing and protecting a coral reef ecological system.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY CHINESE ACAD OF SCI

Method and system for analyzing influence of water transportation engineering construction on ecological integrity of river gallery

The invention relates to the technical field of water transportation engineering, in particular to a method and system for analyzing the influence of water transportation engineering construction on the ecological integrity of a river corridor. Comprising the steps that monitoring equipment is deployed to collect hydrodynamic parameters and ecological data of a river gallery, the influence of water transportation engineering on a river gallery ecological system is evaluated based on the collected data, and the method further comprises the steps that composite hydrodynamic disturbance generated by ship navigation and ship lock dispatching is analyzed and quantified through multi-mode interference coupling; establishing a vegetative level transfer model of benthic organisms and planktons to evaluate a cascade effect of disturbance; a dynamic ecological integrity index is calculated in combination with the composite hydrodynamic disturbance and the cascade effect, and a space-time dynamic evaluation result of the ecological integrity of the river gallery is output according to the dynamic ecological integrity index; according to the method, the ecological integrity of the river gallery can be scientifically evaluated.
Owner:TIANJIN RES INST FOR WATER TRANSPORT ENG M O T +1

Plankton correction method, device, equipment and storage medium

The application relates to the field of artificial intelligence and discloses a plankton proofreading method, device, equipment and storage medium, which are used for improving the accuracy of plankton target detection. The method comprises the following steps: acquiring a total number of biological categories to be proofread, and constructing a detail proofreading category data set according to the total number of biological categories; acquiring a plankton target detection result, and generating a proofreading result set according to the plankton target detection result and the detail proofreading category data set; and performing difference comparison on the plankton target detection result and the proofreading result set to obtain a target result set.
Owner:SHENZHEN OASIS LIGHT BIOTECHNOLOGY CO LTD

SAM-based marine zooplankter instance segmentation mask generation method

The invention relates to a method for generating a mask based on marine zooplankton instance segmentation, and the method comprises the following steps: 1, carrying out the pixel-level instance marking and preprocessing of an original marine zooplankton microscopic image, and obtaining sample data; 2, performing targeted fine adjustment and improvement to adapt to zooplankton scenes; and step 3, sending the sample data into the fine-tuned and improved neural network to obtain more accurate instance segmentation mask data of the marine zooplankton. Wherein the steps 2 to 3 are realized based on the convolutional neural network. According to the marine zooplankton instance segmentation mask generation method provided by the invention, more accurate instance segmentation mask data can be obtained under the condition of lacking semantic category information of zooplanktons, and end-to-end segmentation is realized.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A three-dimensional sea cucumber farming device

ActiveCN224267859UIncrease food sourcesavoid smallPisciculture and aquariaCultivating equipmentsMicroorganismAquaculture of sea cucumbers
This utility model provides a three-dimensional sea cucumber farming device, relating to the field of sea cucumber farming technology. It includes a farming box, multiple sea cucumber cages, and multiple algae cages, arranged alternately within the farming box. Each sea cucumber cage includes a first mesh plate and a second mesh plate, slidably connected within the farming box. The first mesh plate has multiple first farming baskets, and the second mesh plate has a cover plate and multiple second farming baskets. The first and second farming baskets are arranged alternately, with the cover plate close to the top of the topmost first farming basket. This utility model allows for the interleaved cultivation of sea cucumbers and algae within the farming box. During their growth, the algae absorb nutrients such as nitrogen and phosphorus from the water, avoiding pollution caused by eutrophication. Simultaneously, the algae increase the amount of plankton and microorganisms in the water, increasing the food source for sea cucumbers, reducing feed costs, and improving the environmental friendliness of industrialized sea cucumber farming.
Owner:NINGDE NORMAL UNIV

A lidar-based method and apparatus for surface clutter processing using unmanned surface vessels.

This invention proposes a method and apparatus for processing surface clutter using lidar based on unmanned surface vessels (USVs). The method includes: acquiring point cloud data of the USV's surface environment using lidar; performing coordinate system transformation and point cloud correction on the acquired point cloud data; segmenting the corrected data into lidar point cloud clusters using grids; classifying the segmented lidar point cloud clusters by extracting multiple features; and performing real-time frame-by-frame matching and target tracking of USV surface targets using the extracted feature vectors and the positioning information of the point cloud clusters, calculating the target's motion elements, and using the continuity of the target and the randomness of the waves to remove clutter points and accurately track the target. This method can filter out outliers and clutter points caused by plankton, and simultaneously filter out wake waves and spray.
Owner:YICHANG TESTING TECHNIQUE RESEARCH INSTITUTE

A coastal nuclear power biodiversity monitoring method

The present application provides a kind of coastal nuclear power biodiversity monitoring method, belong to the technical field of coastal nuclear power ecological influence, the present application is by in the nuclear power plant surrounding coastal area layout multi-sensor array acquisition site synchronous acquisition water quality parameter, acoustic signal, image data and plankton density such as multidimensional ecological information, constructs multidimensional ecological characteristic data set, utilizes the dense connection network architecture of marine ecological correlation analysis model to learn the nonlinear mapping relationship between multi-source data and outputs biodiversity evaluation index and community structure characteristic parameter vector, combines ecological dynamic early warning model to carry out future ecological change trend prediction, when detecting ecological abnormal signal, start ecological risk comprehensive regulation mode and carry out adaptive optimization adjustment of monitoring parameter, solve the technical problem that coastal nuclear power station ecological monitoring data is multi-source heterogeneous and insufficient in space-time correlation analysis capability.
Owner:STATE OCEANIC ADMINISTRATION BEIHAI MARINE ENG SURVEY & RES INST (QINGDAO HUANHAI MARINE ENG SURVEY & RES INST)

A method for identifying the depth of underwater biological aggregation layers

This application provides a method for identifying the depth location of underwater biological aggregation layers, comprising: identifying the upper and lower boundaries of the planktonic aggregation depth by using the position of the abrupt change in sound velocity of the temperature jump layer and the position of the change in acoustic impedance of the dissolved oxygen jump layer, obtaining the depth range of the aggregation layer boundary, and recording the depth location of the biological aggregation layer in the current cycle; determining the center depth location of the biological aggregation layer in the current cycle by combining the depth spacing, the peak depth of the scattering intensity, and the position of the abrupt change in sound velocity; identifying the depth offset between the center depth location and the depth location of the biological aggregation layer in the previous cycle, and when the offset exceeds the preset jump layer stability boundary, acquiring the echo intensity distribution of the temperature jump layer and the dissolved oxygen jump layer, and extracting the echo intensity difference value between the two jump layers; and identifying the final center depth location of the underwater biological aggregation layer using multibeam sonar by using the enhanced boundary depth location and the position coordinates of each depth point in the aggregation layer.
Owner:SHISHI FTGMDC COMM EQUIP

A method for repairing and treating rural black and odorous water body

The present application belongs to the technical field of black and odorous water treatment, and particularly relates to a method for repairing and treating black and odorous water in rural areas. The present application configures aquatic plants, aquatic animals and microbial communities through a system, combines with water power optimization, and constructs an underwater forest ecological system with self-maintenance capability, so as to realize biological self-purification and long-term stability of the ecological system of the black and odorous water, and is suitable for the treatment of black and odorous water in rural rivers and ponds. Through the closed-loop feedback of excess plankton -> enhanced fish feeding -> excrement promoting plant growth -> absorbing excess nutrients, the ecological balance of the water body is maintained, and the oxygen supply of the photosynthesis of submerged plants is combined with the step-by-step oxygen transfer, so that external aeration is not needed, and zero external energy consumption is realized. In addition, the carrier raw material of the present application is derived from agricultural waste, which reduces the treatment cost and effectively promotes the resource utilization of rural solid waste.
Owner:皖创环保股份有限公司

Stepped sea grass bed plankton collecting device

The invention relates to the technical field of plankton collection, in particular to a stepped sea grass bed plankton collection device which comprises a shell, a telescopic part, a piston cylinder and a plurality of fixing rods are arranged in the shell, the fixing rods are fixedly connected with the piston cylinder, a cross rod is arranged on an output shaft of the telescopic part, and a first piston plate is arranged on the cross rod; driving rods are arranged on the two sides of the cross rod, U-shaped rods are symmetrically arranged in the shell, the driving rods are hinged to the U-shaped rods, a connecting block is arranged below the piston cylinder, hinge blocks are hinged to the two ends of the connecting block, hinge shafts are hinged to the hinge blocks, the U-shaped rods are fixedly connected with the hinge shafts, and a collecting assembly is arranged at the bottom of the connecting block. The movement stability of the connecting block is ensured through the driving rods, the U-shaped rods, the hinge shafts and the hinge blocks which are symmetrically arranged, so that the connecting block can drive the collecting assembly to stably move up and down in the movement process, and the problem of plankton damage caused by sudden change of the movement speed is reduced.
Owner:HAINAN ZHENGYONG ECOLOGICAL ENG TECH CO LTD

A multi-component phytoplankton concentration measurement method based on fluorescence spectrum layering and zoning

The application discloses a kind of multicomponent plankton algae concentration measurement method based on fluorescence spectrum stratification partitioning.The application belongs to the field of marine aquatic ecological environment monitoring technology.The algorithm will unknown to be analyzed mixed three-dimensional fluorescence spectrum according to the following stratification partitioning analysis idea to be analyzed.First layer: full spectrum is involved in analysis, and the purpose is to analyze cyanophyta concentration and cryptophyta concentration, and obtain the difference spectrum in full spectrum region.Second layer: partitioning analysis, take the region containing effective spectral feature to participate in analysis, and the purpose is to analyze chlorophyll a concentration of green algae, diatom, dinoflagellate and yellow algae.The algorithm is significantly superior to common analysis algorithm in reducing misidentification, especially in processing such as diatom, dinoflagellate and yellow algae with high similarity living body fluorescence spectrum.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES