234 results about "Mariculture" patented technology

The invention discloses a gravity type submerging net cage parameter design optimization method, and relates to the field of mariculture equipment structure optimization, and the method comprises the steps: collecting the multi-period marine environment data of a target sea area, and constructing an environment load sequence with a time-varying characteristic; establishing a three-dimensional coupling finite element model, performing disturbance analysis on a plurality of structure control parameters, and identifying a key design parameter set based on a response sensitivity function; and constructing a multi-objective optimization model including floating and sinking time control, maximum stress minimization and attitude offset constraint, performing global optimization by adopting an adaptive genetic algorithm, obtaining an optimal parameter solution, substituting the optimal parameter solution into the simulation model for dynamic response verification, and if a response index is converged to a target interval, outputting the optimal parameter solution as final design configuration. According to the method, systematic optimization of structural parameters of the submerging and surfacing net cage can be achieved, the stability and safety of the submerging and surfacing net cage under complex sea conditions are improved, and the method has high engineering applicability.

The invention provides a transporting device for a plastic fishing raft and an operation method of the transporting device. The transporting device comprises a plastic fishing raft body. The rail assembly is fixedly installed on a walkway plate of the plastic fishing raft body through a rail fixing frame, the rail assembly comprises a cross rail and a linear rail which are installed in a crossed mode, and a positioning groove and a climbing block are arranged at the crossed position; the cargo carrying assembly comprises a conveying frame, a handrail and a cargo body, the cargo carrying assembly is movably installed on the rail assembly through a power assembly, the power assembly comprises driving motors symmetrically arranged at the front end and the rear end of the bottom of the conveying frame, and each driving motor drives wheels on a wheel shaft to rotate through a driving gear; the treads of the wheels are matched with the track contact surfaces, and the rims of the wheels are matched with the side edges of the track assembly. The mechanical level of mariculture operation is remarkably improved, and the problems that traditional manual carrying is low in efficiency and poor in safety are solved.

The invention discloses a marine streptomyces strain SHEa3, a compound derived from the marine streptomyces strain SHEa3 and application of the marine streptomyces strain SHEa3, the classification name of the marine streptomyces strain SHEa3 is Streptomyces sp, the preservation number of the marine streptomyces strain SHEa3 is GDMCC No: 66667, and the preservation date of the marine streptomyces strain SHEa3 is July 14, 2025. The invention also discloses a sesquiterpenoids compound streptaviol A derived from marine streptomyces and application of the sesquiterpenoids compound streptaviol A in preparation of drugs for preventing and treating vibrio diseases of mariculture animals. The invention further discloses application of the sesquiterpenoids, namely the sea threitol C, derived from the marine streptomyces in preparation of drugs for preventing and treating vibrio diseases of mariculture animals. The marine streptomyces source compound has efficient anti-vibrio activity, and the marine streptomyces source compound streptaviol A and the helithreitol C are used for preparing the medicine for preventing and treating vibrio diseases of mariculture animals, so that the side effect is low, and the activity is excellent.

The invention discloses a satellite remote sensing image mariculture identification method and system based on deep learning, and the method comprises the steps: obtaining an original satellite remote sensing image and annotation data, and carrying out the data preprocessing, and obtaining the preprocessed image slice data and mask annotation data; based on a UPerNet segmentation network, ConvNeXt is selected as an encoder, an SCSE attention mechanism is introduced, and a mariculture facility identification model is constructed; and based on a mariculture facility identification model, identifying the preprocessed image slice data and the mask labeling data to obtain a satellite remote sensing image mariculture facility identification result. According to the invention, the boundary of the aquaculture facility can be accurately positioned, and the identification accuracy of the mariculture facility is improved. The satellite remote sensing image mariculture identification method and system based on deep learning can be widely applied to the technical field of remote sensing image processing.

The invention discloses a biological adhesion prevention nano-composite coating for a marine aquaculture netting and a coating process of the biological adhesion prevention nano-composite coating. The coating slurry is composed of a waterborne polyurethane dispersion, an antifouling functional filler and an auxiliary agent; the antifouling functional filler is nano microspheres formed by encapsulating capsaicin by using hydrogenated rosin as a wall material. The preparation method comprises the following steps: preparing the nano-microspheres through a specific process, and dispersing the nano-microspheres in water-based resin to obtain slurry; performing air low-temperature plasma pretreatment on the netting to improve the surface activity; and finally, coating the surface of the netting with the slurry and curing. The problems of dispersion and controllable slow release of natural hydrophobic antifouling components are solved through a nano packaging technology, and meanwhile, the ultrahigh adhesive force of the coating on a flexible hydrophobic base material is realized through a plasma interface activation technology. The two components have a synergistic effect, so that the coating has the outstanding advantages of environmental friendliness, long-acting antifouling property and firm adhesive force, and the technical bottlenecks that the traditional environment-friendly coating is easy to peel and short in service life are effectively overcome.

The invention provides a marine ranch water environment bearing capacity assessment method, and belongs to the field of water environment assessment. According to the method, satellite remote sensing data, buoy monitoring data, breeding management data and weather forecast data are fused, a physical-ecological coupling dynamic model is established, the dynamic response of a hydrodynamic process and ecological variables is simulated, and an ELM-SVR combined model is adopted to calculate a water environment bearing capacity index. According to the method, the problems of data missing and low model precision in a traditional method are solved, and the accuracy of water environment bearing capacity evaluation is improved. Meanwhile, the breeding scale and mode can be adjusted according to the evaluation result, and continuous harmony of the environment and breeding is achieved. The method is beneficial to improving the economic benefits of the marine ranching and protecting the marine ecological environment, and has important practical value.

The invention belongs to the technical field of water quality prediction, and particularly relates to a water quality dynamic prediction method and system in a marine ranch culture environment, and the method comprises the steps: collecting historical water quality time sequence data, and carrying out the standardization processing; decomposing the standardized water quality time sequence data into a trend component and a season / disturbance component, and performing multi-scale feature coding; based on the seasonal multi-scale features, dynamically adjusting the frequency domain resolution through fractional Fourier transform, and obtaining time domain enhancement features after inverse transformation in combination with multi-head self-attention; based on trend multi-scale features, calculating a Pearson correlation matrix to form a mask matrix, and calculating output channel frequency domain enhancement features in combination with a mask attention mechanism; utilizing a global time sequence attention mechanism to obtain a globally enhanced trunk feature; and performing dynamic gating fusion on the three paths of features to obtain a fused spatial-temporal feature, inputting the fused spatial-temporal feature into a prediction head, and outputting a future value of the water quality time sequence data.

The invention discloses a composite inducer for promoting adhesion and metamorphosis of marine bivalve mollusk larvae and an application method of the composite inducer. The composite inducer for promoting adhesion and metamorphosis of the marine bivalve mollusk larvae comprises glutamine, glutamic acid, potassium chloride, calcium chloride and taurine, and the concentration ratio of the glutamine to the glutamic acid to the potassium chloride to the calcium chloride to the taurine is 1: 1: 2 * 10: 1.7 * 10: 4. According to the application, glutamine, potassium ions, calcium ions, glutamic acid and taurine are matched, the application effect of the glutamine, the potassium ions, the calcium ions, the glutamic acid and the taurine in the aspect of improving the attachment and metamorphosis rate of the shellfish larvae is defined, the technical blank of multi-component cooperative regulation and control of the attachment and metamorphosis of the shellfish at present is filled, a new solution is provided for bivalve shellfish fry production, and the application prospect is wide. The method is of great significance in promoting healthy development of the mariculture industry.

The utility model discloses integrated mariculture tail water treatment equipment which comprises an electrolysis area, a settling area and an ultrafiltration area which are arranged in a frame, the electrolysis area and the ultrafiltration area are positioned on two sides of the settling area; an electric flocculation device is arranged in the electrolysis area; a plurality of groups of inclined plates are arranged in the settling zone, and a sludge compacting device is arranged at the bottom; according to the tail water treatment device, tail water can be treated, the efficiency is high, and secondary pollution to the tail water is avoided.

This invention provides a slow-release feed device for marine aquaculture, relating to the field of marine aquaculture technology. It includes a rotating drum, a drum cover, and a fixed shaft. A rotating impeller is mounted on the rotating drum, which is connected to the drum cover to form a cylindrical space. The fixed shaft passes through the central axis of the rotating drum and drum cover and is rotatably connected to them. A cake holder, a feed cake, and a cake brush are installed within the cylindrical space. The cake holder is fixedly connected to the fixed shaft, and the feed cake is mounted and fixed on the cake holder. The cake brush rotates synchronously with the rotating drum, brushing the surface of the feed cake to accelerate slow release. Utilizing ocean currents or the up-and-down movement of seawater, the rotating impeller drives the rotating drum to rotate, which in turn drives the cake brush to continuously brush the slow-release flocculated layer formed on the surface of the feed cake. This effectively accelerates the diffusion and release of feed particles, solving the problem of excessively long natural slow-release time for feed cakes and their inability to pass through a 150-mesh or finer silk sieve, thus meeting the needs of aquaculture such as oyster farming.

The invention provides a portable welding device for construction of a marine ranch breeding platform, belongs to the technical field of marine ranch breeding platforms, and solves the technical problem of rapid adaptation of clamps for steel pipes with different pipe diameters of breeding components. A portable welding device for a marine ranch breeding platform comprises a movable table and a separation frame, the two ends of the top of the separation frame are each fixedly connected with two supporting frames, the tops of the two supporting frames on the same side are each fixedly connected with the same rectangular frame, and a first lead screw is rotationally connected between the two ends of the interior of each rectangular frame; and each first lead screw is in threaded connection with a threaded connection block. According to the steel pipe welding device, steel pipes of different specifications can be fixed and adjusted, the universality and adaptability of the device are improved, the welding requirements of the steel pipes of different sizes in a marine ranch breeding platform can be met, shaking and deviation of the steel pipes in the welding process are reduced, and therefore the quality of welding joints is ensured; and the welding precision and reliability are improved.

The utility model discloses a mariculture nitrate nitrogen monitoring system, which comprises a flow-type sensor mounting joint J, a nitrate nitrogen sensor C, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D and a nitrate nitrogen sensor D, and is characterized in that the top of the sensor mounting joint J is provided with a discharge port J2; the input end of the sewage pump B is communicated with the sewage pool, and the output end is communicated with the input end J1 of the sensor mounting joint J; the air compressor is communicated with the airflow input end J3 of the sensor mounting joint J through an air compression valve F1; the input end of the discharge valve F3 is communicated with the input end J1 at the bottom of the sensor mounting joint J; the input end of the water purification valve F4 is communicated with the water purification tank, and the output end is communicated with the input end J1 of the sensor mounting joint J; and the controller is electrically connected with the nitrate nitrogen sensor C and the valves respectively. The sewage pool is provided with a plurality of paths, and each path of sewage pool is communicated with the sewage pump B through a sewage valve. The utility model has the beneficial effects of low maintenance cost, prolonged service life and improved detection precision.

The invention discloses Pseudomonas tai H1R1 and application thereof in treatment of mariculture tail water, the Pseudomonas tai H1R1 has excellent high salt resistance and aerobic denitrification function, can directly convert ammonia nitrogen and nitrate into nitrogen and efficiently remove nitrogen, the nitrogen removal rate can reach 80% or above, nitrogen load in water is reduced, the nitrogen removal efficiency is improved, and the application of the Pseudomonas tai H1R1 in treatment of mariculture tail water is improved. The problem of water eutrophication caused by nitrogen can be prevented; the system can survive and breed under various severe environment conditions and treat mariculture tail water. The pseudomonas tai H1R1 disclosed by the invention can utilize organic matters in mariculture tail water as a carbon source, so that the growth speed and the growth amount of bacteria are increased, and organic wastes in a culture process are reduced, so that the strain H1R1 can promote self growth while treating the mariculture tail water; and double benefits of environmental governance and resource cyclic utilization are realized.

The utility model belongs to the field of marine disaster prevention and reduction and marine fishery production, and particularly relates to a multilayer three-dimensional net cage combined by a double-layer arc plate breakwater and a mariculture net cage, which comprises a top panel, the double-layer arc plate breakwater, a frame reinforcing structure and the mariculture net cage. The double-layer arc plate breakwater comprises an upper-layer plate and a lower-layer plate which are connected through rigid supporting columns, and a top panel is located above the upper-layer plate and connected through the rigid supporting columns. The mariculture net cage is of a netting structure and is integrally fixed to the frame reinforcing structure. The top of the frame reinforcing structure is located below the lower layer plate and connected through a flexible connecting rope, and one or more first mooring chains are arranged at the bottom of the frame reinforcing structure. The marine three-dimensional house has various functions, and has the functions of marine farming and pasturing and high-efficiency utilization of marine three-dimensional space. Disaster prevention and disaster reduction are combined with mariculture requirements in a shallow ocean water layer, sustainable development of ocean farming and pasture is promoted, and economic benefits of the breakwater structure are improved.

The present application relates to the field of aquaculture circulating seawater purification, and particularly relates to a preparation method of an efficient bacteria-algae composite biofilm for aquaculture circulating seawater, comprising the following steps: (1) water preparation: adding aquaculture circulating water and adding nutrient salt in an aquaculture biochemical tank, and adjusting pH and permanganate index; (2) adding modified carrier filler: adding modified hydrophilic wavy arc surface material to a primary biochemical tank, and adding modified hydrophilic polyurethane sponge to a secondary biochemical tank; (3) biofilm formation: keeping seawater circulation in the primary biochemical tank, keeping seawater circulation and aeration in the secondary biochemical tank, and cultivating under illumination until biofilm formation is completed. The chemical oxidation carrier filler is used in the present application, the surface roughness is increased and the hydrophilic group is generated, the hydrophilicity is preliminarily improved, the graphene oxide is further used to improve the hydrophilicity, the microorganisms are beneficial to gather and adhere to the carrier filler to form a relatively firm biofilm, the biofilm formation time is greatly shortened, and the nitrogen content in the aquaculture circulating seawater can be stably and continuously degraded.

This invention provides an intelligent control method and device for automatically extracting seawater, belonging to the field of automated control technology for mariculture. The method acquires current time, geographical location, and tidal time data; uses a water level sensor to detect whether the current water level has reached a preset threshold; and uses a water quality sensor to detect the water's conductivity to determine if it is seawater. When the water level meets the standard, the water is confirmed to be seawater, and the current time is within the high tide period, the pumping equipment is automatically started. The device includes a water level sensor, a water quality sensor, a communication module, a positioning module, a control module, and a relay control interface. This invention, through a multi-condition verification mechanism, avoids misjudgment due to rainfall and water accumulation and malfunctions caused by tidal fluctuations, achieving fully automated intelligent control of seawater extraction operations. It solves the problems of high labor intensity, high risk of nighttime operations, and frequent malfunctions associated with traditional manual operations, thus improving the production efficiency and safety of mariculture.

The marine ranch net cage cleaning robot comprises a main body structure, a shovel type collecting assembly, a power assembly and an adsorption roller assembly. A main body structure comprises a rack, an electric control cabin and a front-end vision module, wherein the electric control cabin is fixedly connected with the rack; the shovel type collecting assembly is installed below the rack, and a working part faces forwards. The power assembly comprises vertical propellers and transverse propellers, the four vertical propellers are arranged on the front side and the rear side of the rack respectively, and the two transverse propellers are arranged on the two sides of the shovel type collecting assembly. The adsorption roller assembly comprises adsorption type net surface rollers and a roller driving mechanism, the two groups of rollers are arranged outside the vertical propeller at the rear part of the rack in a covering manner, and wheel surfaces are positioned in the wave making direction of the propeller. The adsorption type net surface roller is made of polyurethane and is driven by a driving mechanism to rotate. The adsorption type net surface roller of the device not only adsorbs small attachments through high polymer materials, but also is matched with the reverse thrust of the underwater propeller motor to jointly achieve stable attachment of the robot and the net cage, and an independent adsorption device is not needed.

The invention discloses a wave-light combined energy supply observation buoy for a marine ranch cluster. The wave-light combined energy supply observation buoy comprises a transparent hemispherical shell, a cylindrical shell, a photovoltaic power generation system, an oscillation floater type wave energy power generation device and a mooring system. The photovoltaic power generation unit on the inner surface of the hemispherical shell utilizes sunlight to generate power and inputs the power into the energy storage battery; the bottom of the cylindrical shell is connected with the mooring system and anchored to the seabed; an inertia pendulum power generation module of the wave energy power generation device is installed in two vertical directions, when the inertia pendulum power generation module is excited by random waves, the device captures multi-degree-of-freedom energy in sea waves for power generation, and the multi-degree-of-freedom energy is input into an energy storage battery after being rectified. The energy conversion structure of the power generation device is simple and integrated in the equipment, and the damage of seawater to a core power generation part can be prevented during working; two power generation mechanisms of solar energy and wave energy are combined to realize power generation in different sea areas and under different wave conditions, the energy output efficiency is effectively improved, and the stored electric energy can continuously supply energy to various sensors in the drifting buoy so as to prolong the endurance time of carried observation equipment.

The invention discloses an underwater monitoring equipment mounting system, and relates to the technical field of mariculture, and the underwater monitoring equipment mounting system comprises a lifting assembly, a top mounting assembly and an underwater monitoring equipment mounting assembly; the top mounting assembly is arranged on the main deck; the lifting assembly comprises a plurality of lifting units, the multiple lifting units are sequentially and detachably connected in the vertical direction, and the uppermost lifting unit is detachably connected with the top mounting assembly; the underwater monitoring equipment mounting assembly is detachably connected with the lifting unit, and the underwater monitoring equipment mounting assembly is used for mounting underwater monitoring equipment; according to the technical scheme provided by the invention, the underwater monitoring equipment can be conveniently maintained.

The invention discloses application of pseudoarthrobacter in synchronous nitrogen and phosphorus removal of low-carbon high-salt mariculture wastewater, the preservation number of the pseudoarthrobacter is CCTCC AB 205501, and the pseudoarthrobacter is preserved in the China Center for Type Culture Collection. Under low-carbon and high-salt conditions, in ammonia nitrogen, nitrate and mixed nitrogen source wastewater, the removal rate of phosphate in 72 hours exceeds 95%, the highest removal rate of ammonia nitrogen can reach 100%, and the highest removal rate of total inorganic nitrogen can reach 98% or above. The efficiency is obviously superior to that of the traditional method, and the treatment time and energy consumption are reduced.

The invention provides a deep and far sea self-sustaining fishing light wave complementary comprehensive power generation system, and belongs to the technical field of comprehensive power generation systems, and the deep and far sea self-sustaining fishing light wave complementary comprehensive power generation system comprises a sea light energy power generation system which is installed at the top of a floating platform; the wave energy power generation device is installed between the supporting stand columns of the floating type platform, and the wave energy power generation device comprises an oscillating floater, a power output system and an adjustable balance weight structure; the gravity type culture net cage system is fixed below the floating type platform, the shape of a net cage is kept through a counterweight system and an anchorage system, and the intelligent culture function is achieved through electric energy generated by a wave energy power generation device; a buoyancy structure of the floating platform and a buoyancy structure of the gravity type aquaculture net cage are shared, and the technical problems that due to independent development of offshore photovoltaic power generation, wave energy power generation and mariculture in the deep and far sea environment, the space utilization rate is low, energy supply is difficult, and collaborative optimization capacity is lacked are solved.

The utility model discloses a mariculture source water treatment system. The mariculture source water treatment system comprises a pretreatment unit, an ultrafiltration unit, an ultrafiltration backwashing unit, a medicine washing unit and a control unit, the ultrafiltration membrane is used as a core, the filtering precision is high, and the quality of produced water is good; the ultrafiltration membrane can remove float sludge and harmful microorganisms in natural seawater, does not generate harmful by-products, does not bring harmful effects to an artificial mariculture system, and can improve the survival rate of cultured aquatic products.

The present invention relates to the field of seawater aquaculture tailwater treatment, and more particularly to an integrated device and treatment method for industrial seawater aquaculture tailwater treatment. The recycling route of the present invention is used for regular and quantitative purification and disinfection of aquaculture tailwater, removal of water biological toxicity, and after addition of fresh water, recycling to aquaculture ponds for reuse, maintaining the pH and salinity of the aquaculture water and removing harmful microorganisms. The purification and discharge route of the present invention is used for regular and quantitative renewal of aquaculture tailwater, and after undergoing processes such as A / O biochemical treatment, biological purification tanks, ozone disinfection, aeration and oxygenation, and ultraviolet disinfection, the tailwater is discharged after meeting the discharge standards. The average contact angle of the modified biofilm prepared by the present invention is 35 degrees, which is conducive to the adhesion of microorganisms. The integrated device and treatment method for industrial seawater aquaculture tailwater treatment of the present invention have a suspended matter removal rate of 95%, a COD removal rate of 92%, and a total nitrogen removal rate of 91%.

The invention belongs to the technical field of mariculture power supply management, and discloses a pure electrochemical unit net cage typhoon-resistant reliable power supply system. Comprising the following steps: carrying out load grading on each electricity load to obtain a power supply priority; when typhoon early warning is triggered, freezing the energy storage available energy in the pure electrochemical unit net cage according to a preset minimum energy threshold value; collecting operation state data in real time, and dynamically predicting the maintenance duration in combination with the minimum energy threshold value; according to the maintenance duration and the power supply priority, power supply strategies of different electricity loads are intelligently adjusted, downshift operation is carried out on elastic loads in the electricity loads, and energy available for energy storage is dynamically scheduled based on the power supply strategies and downshift operation results; the intelligent capturing wind and light power generation window is used for supplementing energy available for energy storage for the pure electrochemical unit net cage; according to the invention, high-reliability power supply in extreme weather is realized, and continuous operation of a key load is guaranteed, so that the mariculture monitoring and data communication capability is improved.

The invention belongs to the technical field of environmental engineering and pollution treatment, and particularly relates to an ecological intensive mariculture tail water intelligent treatment system and method.The ecological intensive mariculture tail water intelligent treatment system comprises a pretreatment and solid waste recycling module, a primary purification module, a biological collaborative purification module and a deep purification module; the pretreatment and solid waste recycling module comprises a high-density sedimentation tank, the primary purification module comprises a microalgae open pond, the biological collaborative purification module comprises a mixed culture area, and the deep purification module comprises an artificial wetland area. An outlet in the upper end of the microalgae open pond is connected with an inlet in the upper end of the mixed culture area through a pipeline I; according to the system, a biological treatment mode is adopted, the inherent defect of a single method in the prior art is overcome, standard discharge of mariculture tail water is achieved, green, ecological and efficient development of the breeding industry is promoted, and the win-win situation of ecological environment protection and economic benefit improvement is achieved.

The application discloses a kind of Phascolosoma esculenta seedling cultivation methods, it is related to the technical field of mariculture.(1) parent culture;(2) labor induction;(3) sea ball larva cultivation;(4) the preparation of benthic cultivation pool;(5) planktonic larva metamorphosis induction;(6) the cultivation management of benthic larva.The application can effectively improve the efficiency of feeding sea mud of creeping stage larva, improve the dissolved oxygen in silt substrate, reduce the low dissolved oxygen caused by accumulated water during the process of dry, and the high mortality rate.

The application discloses a filter dam for treating tail water of mariculture, which comprises a dam foundation, a front water retaining dam and a rear water retaining dam, wherein the front water retaining dam and the rear water retaining dam are arranged on the dam foundation respectively, and the front water retaining dam and the rear water retaining dam are located on the water-approaching side and the water-backing side of the dam foundation respectively; a water inlet is arranged on the water retaining dam; a liftable weir gate is arranged in the water inlet; side filter dam bodies are oppositely arranged on the two sides between the front water retaining dam and the rear water retaining dam; a water inlet channel is formed in the passage between the side filter dam bodies; a settlement wall is arranged on the inner side of the side filter dam body; and a gap is arranged between the settlement wall and the side filter dam body, which forms a buffer zone. The filter dam has the advantages of simple structure, large filtering capacity, difficulty in blocking, stable operation and convenience in replacing the filler.

The present application relates to sewage biological treatment technical field, provide a kind of based on function bacteria group-microalgae-pyrite composite system enhanced synergistic aerobic granular sludge and its preparation method.Characteristics are that the method is composed of four steps of pyrite pretreatment, bacteria-algae synergistic acclimation inoculation, aerobic granular sludge induction formation and mature stable aerobic granular sludge.The present application constructs the trinity system of "pyrite-function bacteria group-microalgae", and makes three form physical-chemical-biochemical synergistic network.The aerobic granular sludge prepared by function bacteria group-microalgae-pyrite composite system enhanced synergistic, when deep treatment mariculture tail water, not only has higher COD, TN and TP removal efficiency, good anti-impact resistance and load capacity, but also can regularly harvest microalgae in system as aquatic feed additive, realize "pollutant→resource" transformation.

The present application belongs to the technical field of wastewater treatment, and particularly relates to a seawater breeding wastewater antibiotic removal method based on oyster shell composite filler. Fine gravel, oyster shell and functional mineral are compounded in a fixed volume ratio of 2:1:1, and are laid in a structure with a limited particle size range and homogeneity without stratification. A salinity-directed salt-tolerant domestication process and a tidal intermittent operation mode of 48h hydraulic retention + 24h emptying and reoxygenation are matched, and salt-tolerant functional bacterial flora of Proteobacteria, Paracoccus and Shigella are enriched. The present application can adapt to a wide range of salinity conditions of 10‰-30‰, relieve high salt inhibition and ion competition, simultaneously and efficiently remove three typical antibiotics of conventional pollutants, sulfamethoxazole, trimethoprim and enrofloxacin, and reduce resistance genes. The sulfamethoxazole removal rate can reach 93.94% under the condition of 30‰ high salinity, the system runs stably and has strong adaptability, and has certain engineering application value and large-scale popularization potential in the field of seawater breeding wastewater treatment.