46 results about "Offshore aquaculture" patented technology

The invention relates to an offshore aquaculture remote monitoring system and a monitoring method thereof. The monitoring system comprises monitoring terminals and a monitoring host which are connected through a network. Each monitoring terminal comprises a micro processing unit, a temperature sensor, a salinity sensor, a pH value sensor, a dissolved oxygen sensor, an infrared camera, a communication unit, a heating element, a piece of refrigeration equipment and a concentrated oxygen producing device, wherein the temperature sensor, the salinity sensor, the pH value sensor, the dissolved oxygen sensor, the infrared camera and the communication unit are connected with the micro processing unit, and the micro processing unit controls start / stop of the heating element, the refrigeration equipment and the concentrated oxygen producing device. The monitoring host is provided with an alarm unit. According to the monitoring method, the micro processing units respectively control start / stop of the heating elements, the refrigeration equipment and the concentrated oxygen producing devices according to measured temperature, salinity, pH values and dissolved oxygen concentration values, the monitoring host judges whether any bred fish is diseased or dead according to an acquired image, and alarm is started once an abnormal situation occurs, which helps breeders or relevant personnel to take timely measures so as to increase revenue and reduce loss.

The invention relates to a rising and falling marine aquaculture net cage and belongs to the technical field of marine aquaculture equipment, and aims at solving the unreasonable structural design ofthe existing marine aquaculture net cage, and poor ability to resist strong winds, sea waves and typhoons. The rising and falling marine aquaculture net cage adopts an internal and external floating pipe connecting frame is one-piece internal and external floating pipe plastic cladding steel connecting frame, the transverse end of the one-piece internal and external floating pipe plastic claddingsteel connecting frame is connected with an inner floating tube, the other end of the one-piece internal and external floating pipe plastic cladding steel connecting frame is connected with the outerfloating tube, the upper part of the longitudinal end is connected with a mast, a floating device is connected to the rope of the anchor rope by a connecting rope attached thereto, a buffer is attached to the rope body in the middle of the anchor rope, and the connecting ropes of a cage counterweight are all connected to the bottom of the net cage, and the outer floating tube is provided with 2-12pipe joints, the pipe joint is connected with a transfer nozzle, a water pump and an electric control valve, the water pump and the electric control valve are connected to a remote control by electrical signal line, the remote control and water pump are installed on a control platform. The rising and falling marine aquaculture net cage has the advantages that the structure is new and practical, and the rising and falling marine aquaculture net cage is suitable for marine and aquaculture such as lakes and rivers.

The invention relates to an isotope-based analysis method for nitrogen pollutants in an offshore aquaculture water area. The contribution rate of aquaculture wastewater to nitrogen in offshore water is acquired in the manner of analyzing the abundance values of nitrogen isotopes in the offshore water and the aquaculture wastewater according to the different components of the nitrogen isotopes in different pollution sources and receiving water. The method specifically comprises the following steps: step 1, collecting samples on all the sampling sites before the flood tide according to nationalrelevant industrial standards; and step 2, adopting an isotope mass spectrometer for analyzing the abundance values of nitrogen, hydrogen and oxygen isotopes in all the samples, comparing with the abundance values of the isotopes of a standard sample, calculating an isotope rate value of the samples, accordingly calculating the abundance values of 2H-H20, 18O-H2O and 15N-NO3 in an effluent sample,an aquaculture wastewater sample and a tidal creek sample, and applying a bayesian network model for calculating the contribution rate of the pollution sources. Due to the use of the isotopes in theinvention, the accuracy of analysis result is increased, the monitoring workload is effectively reduced and the human and material resources are saved.

The present invention relates to a method of producing sterile aquaculture water and a fish aquaculture method using flowing sterile water and, more particularly, to a novel fish aquaculture method using flowing sterile water, in which: sterile aquaculture water is produced having a level of harmful ingredients that is lower than potable water, by producing oxidants through electrolysis treatment of fresh water or seawater for fish aquaculture using freshwater or seawater, and by killing pathogenic viruses, germs, and parasites; and a novel sterile aquaculture system (SAS) is employed which removes residual oxidants harmful to fish by neutralizing the sterile aquaculture water when farming fish by using the sterile aquaculture water, and then using the neutralized sterile aquaculture water as fish aquaculture water, so as to be able to minimize the mortality rate of fish due to various pathogenic microorganisms, while not using antibiotics and vaccines.

The invention relates to external tractive lifting-control device and method for offshore cages. The device comprises a buoy. A winch for winding to pay out and take in a traction rope is disposed in the buoy. A rope winding-unwinding tubular duct is disposed below the winch. The traction rope is wound on the winch. The traction rope passes through the rope winding-unwinding tubular duct and extends out of the buoy. The traction rope is connected with a weight driving an offshore cage to sink. The method includes: adding four control devices to junction points at four corners of a square anchor rope frame outside a floating offshore aquaculture cage respectively; connecting the floating offshore aquaculture cage with the buoy and the weight respectively with ropes; and releasing the weight towards the sea bed through the buoy, and drawing the floating offshore aquaculture cage to sink through the weight. By the device and the method, the floating offshore aquaculture cage without functions of sinking and floating can sink and float safely.

The invention belongs to the technical field of offshore wind power generation and mariculture, and provides a fixed draught fan and an offshore aquaculture net cage integration system. The system comprises a single-pile wind power generator and a circular aquaculture net cage; the single-pile wind power generator is fixed to the seabed through a single-pile base; the circular aquaculture net cage is installed on the single-pile wind power generator through a hinge, a buckle and a slide type contact device in a matched and sleeving mode, the upper surface of the circular aquaculture net cage is located on the portion close to the water level, and sling chains are hung on the lower surface of the circular aquaculture net cage and used for breeding aquatic products in a hanging mode. Accordingly, the single-pile wind power generator is simple in structure, convenient to construct, low in construction cost and wide in application range. The circular aquaculture net cage is combined with the single-pile draught fan base, the effective utilization rate of the sea area can be increased. The structural design is reasonable and stable, the construction scheme and technology are mature, and the single-pile wind power generator is simple in selection. The circular aquaculture net cage is detachable and replaceable.

The invention discloses an industrialized aquaculture pond. A suspended matter adsorption device is arranged in an existing pond, a mud through pipe is connected to the bottom of the pond after suspended matters in the pond are adsorbed, the suspended matters are deposited and can be prevented from being mixed to suspend again, aquaculture water is purified, a circulating water pipe is externally connected, the temperature of the pond water is controlled, oxygen enrichment is performed in the pond water, a superior growth environment is provided for fish aquaculture, a fishing net is laid on a bottom mud layer and drawn through a pull rope when fishes grow to reach proper sizes, and catching is facilitated. The industrialized aquaculture pond is simple in structure and high in practicability, the suspended matters are recovered and deposited, death of the fishes caused by unsmooth breathing is avoided, and economic values of aquaculture are improved.

The invention discloses a semi-submersible type offshore aquaculture facility modified based on a container freighter and belongs to the technical field of fishery equipment. A diesel engine cabin used for electricity generation and power supply is arranged on the tail portion of the aquaculture facility. A plurality of aquaculture cabins are distributed below a deck and are formed by the modification of the container cargo cabin. Cavities used for supplying buoyant force for the aquaculture facility are formed in the side walls of the aquaculture cabins. The outer wall of the aquaculture facility is connected with net cages, the net cages communicate with each other through a plurality of water-exchanging holes, the lower portions of the aquaculture cabins communicate with bottom net cages, and the aquaculture cabins are connected with water-absorbing and water-exchanging equipment. By adopting an existing container ship modification method, the cost of a ship body is greatly reduced to 15%-20% of an existing design according to the calculation of the same volume of fish-farming water; the deepest draught reaches22 meters and meets most of sea areas in China; and fresh seawater with the appropriate temperature is absorbed from the position with the water depth being 40-50 meters to be used for the replacement of the surface seawater in the cabin, and a good living condition for fish aquaculture is created.

The invention discloses a fishery aquaculture feeding device which comprises a charge pipe, a push plate, a support frame, a rotary shaft, an air pump, an air pipe, a communicating pipe and a storagebarrel. The push plate is mounted inside the charge pipe, the support frame is arranged at the bottom of the charge pipe, the rotary shaft is arranged on the top of the support frame, the communicating pipe is arranged on the top of the charge pipe, the storage barrel is arranged on the top of the communicating pipe, the air pipe is arranged at an end of the charge pipe, and the air pump is arranged at an end of the air pipe. The fishery aquaculture feeding device has the advantages that the charge pipe is obliquely mounted on the support frame, the push plate is arranged in the tail of the charge pipe, the air pump is arranged at the rear of the push plate, the storage barrel mounted on the top of the charge pipe is connected with the charge pipe by the communicating pipe, fish bait can fall into the charge pipe along the communicating pipe and can be ejected out of the charge pipe under aeration effects of the air pump, and accordingly the work efficiency can be effectively improved.

The invention discloses a fishery aquaculture system capable of control pond water temperature comprising a pond; a pond water heat exchange system is installed at the outer side of the pond; a feeding device is installed in the middle of the pond; the feeding device comprises a floating platform; an ejection device which can eject material in a feeding tray out of a discharging seat is installed on the floating platform; a scraper mechanism which can centralize material in the front end of the feeding tray to the rear of the feeding tray is installed on the ejection device; a locating pole is installed on the floating platform on one end of which the discharging seat is installed; a wind sail mechanism, which can make the floating platform rotate about the locating pole as the wind alters directions so that it can adjust feeding direction, is installed on the other end of the floating platform. The purpose of the invention is to overcome the deficiency of the prior art and to provide a fishery aquaculture system with simple structure and capable of control pond water temperature with which the pond water temperature can be adjusted so that aquatic products can overwinter safely, the cultivation effect is good, the dispersibility of bait is good, and the feeding scope is wide.

The invention discloses a method for self-use of a deep sea net cage by utilizing tidal power generation. The method comprises the following steps that I, diving or floating operation is started through a control platform; II, feeding is conducted through a delivery system; III, when the deep sea net cage floats upwards, a net cage can be cleaned and maintained through a cleaning system, and cleaning comprises cleaning of a camera lens of a monitoring system and cleaning of a netting; IV, a mobile client detects imaging data of water temperature, water quality, dissolved oxygen, residues and aquatic creatures through an underwater measurement and control and oxygenation system. According to the method, the problem of insufficient management initial release and storm resistance of a traditional deep sea aquaculture net cage is solved, and the deep sea net cage is managed in a floating and sinking manner, so that the damage rate caused by typhoon attack is effectively avoided. The deep sea aquaculture safety guarantee is improved, meanwhile, the deep sea aquaculture space and the adaptive sea area are greatly expanded, the offshore aquaculture ecological environment is improved, and a new chapter is opened for deep sea fishery.

The invention discloses a high-quality crucian aquaculture technology, and relates to the technical field of fish aquaculture. The high-quality crucian aquaculture technology comprises 7 steps of pond address selection, fishpond cleaning, sterilization disinfection, fishpond water adding and fry throwing, feeding, disease prevention and treatment, and catch and selling. According to the high-quality crucian aquaculture technology, the cultured fries are high in survival rate and fresh in meat; the aquaculture technology is scientific and efficient, and the aquaculture method is simple, ecological and environment-friendly.

The invention discloses a system for deep-sea aquaculture, which is used for deep water net cage aquaculture. The system comprises a feed production system, a land transportation system, a storage system, a marine transportation system, and an aquaculture net cage system; the feed production system is a feed producer used for feed production; the land transportation system comprises a feed transportation pipeline used for feed land transportation; the storage system is a storage tank; the marine transportation system includes a feed transportation chip used for feed transportation, and the feed transportation system is provided with a wireless communication device which can be controlled remotely; the aquaculture net cage system comprises a central floating platform, four water tanks located at the bottom, and a connecting pipe connecting the water tanks and the central floating platform, a breather pipe and a water pipe are arranged in the connecting pipe in a seal mode, a solar panel is arranged on the top of the central floating platform, and a plurality of breather and water pipes are formed in the side wall of the central floating platform. Compared with the prior art, the system for deep-sea aquaculture significantly improves the aquaculture quality, reduces the aquaculture cost and is capable of monitoring the aquaculture system situation.

The invention discloses a deep-sea aquaculture system for automatically throwing feed, which is used for deep water net cage aquaculture. The system comprises a feed production system, a land transportation system, a storage system, a marine transportation system, and an aquaculture net cage system; the feed production system is a feed producer used for feed production; the land transportation system comprises a feed transportation pipeline used for feed land transportation; the storage system is a storage tank; the marine transportation system includes a feed transportation chip used for feed transportation the aquaculture net cage system comprises a plurality of floating platforms, an aggregate bin and a support are rotationally arranged on the floating platforms, a discharge pipe is arranged at the bottom of the aggregate bin, the discharge pipe is provided with a feed port controller, a runner is rotationally disposed on the support, the runner is provided with a plurality of feed throwing handles in a radiation mode, and the discharge pipe is provided with a discharge port controller. Compared with the prior art, the deep-sea aquaculture system for automatically throwing feed significantly improves the aquaculture quality, provides an intensive, industrialized and scaled deep-sea aquaculture system, reduces aquaculture cost and is capable of monitoring the aquaculture system situation.

The invention provides an ecological aquaculture method for sea horses. The ecological aquaculture method comprises the following steps of adding seawater which is subjected to filtration, sedimentation and regulation into a plastic barrel: the salinity of the seawater is 2.0-2.8 percent, the pH is 7.6-8.5, the oxygen dissolving amount is greater than 5mg / L, the liquid level is 70-80cm, and the temperature is 20-30 DEG C; feeding seaweeds into the plastic barrel, and keeping the fresh weight density of the seaweeds to be 1-3kg / m<3>; feeding living baits into the plastic barrel; spraying microorganism preparations; feeding young sea horses. Compared with an existing aquaculture technology, the ecological aquaculture method for the sea horses has the advantages that by the method for sea horse aquaculture, the environmental factors can be stabilized and controlled, the large-scale industrial production is facilitated, the feeding frequency of baits is reduced, the production efficiency is improved, the survival rate of the sea horses is guaranteed, and the economical benefit is high.

A method for breeding under ecological cyclic rice planting and fish aquaculture includes: arranging a system for breeding under ecological cyclic rice planting and fish aquaculture; when fertilizing of a paddy field is required after compound feed is poured into a fish pond, opening a valve or a gate to keep a second ditch smooth, so that flooding of water from the fish pond to the paddy field can be realized; after the paddy field absorbs fertilizer nutrients and injected water quality is purified, starting a water pump in a water pump station to pump water from the paddy field to the fish pond through a first ditch, so that the purified water refills the fish pond, and a purification function and water circulation are realized. Therefore, defects of high labor intensity and low rice harvesting and fish catching efficiency caused by failure in mechanical operation in rice harvesting and fish catching due to a rice and fish concentrated mode in the prior art are effectively avoided.

The invention provides a method for quantitatively evaluating the influence of an offshore aquaculture pond on the concentration of offshore Chl-a, and the method comprises the steps: firstly obtaining a remote sensing image of a research area, and extracting the spatial distribution of a offshore aquaculture pond; downloading and processing a chlorophyll a concentration data product; secondly, downloading and processing coastline data, and establishing an evaluation sample area based on the processed coastline data; and finally, obtaining a product based on the aquaculture data and the chlorophyll a concentration data, counting the near-shore aquaculture area and the chlorophyll a concentration mean value in the sample area, taking the aquaculture area as an independent variable and the chlorophyll a concentration mean value as a dependent variable, and quantitatively evaluating the influence of the aquaculture pond on the offshore chlorophyll a concentration space-time distribution by adopting Pearson correlation analysis. The invention can quantitatively evaluate the influence of the offshore aquaculture pond on the spatial and temporal distribution of the offshore chlorophyll aconcentration in a regional or national scale, and provides theoretical guidance for sustainable development planning of the coastal national aquaculture industry and formulation of near-seawater environmental protection policies.

The invention relates to an aquaculture device based on an offshore wind turbine generator composite cylinder type foundation base platform. The aquaculture device comprises the cylindrical composite cylinder type foundation base platform, a wind turbine generator base column and an aquaculture net box. The cylindrical composite cylinder type foundation base platform is built on a foundation. The wind turbine generator base column is built on the cylindrical composite cylinder type foundation base platform. A top support of the aquaculture net box is fixedly mounted on the wind turbine generator base column. A marine aquaculture area is formed by enclosing of netting of the aquaculture net box along the wind turbine generator base column. The bottom of the aquaculture net box is connected to the cylindrical composite cylinder type foundation base platform. The offshore aquaculture net box and the offshore composite cylinder type wind turbine generator foundation construction are combined, a building load is provided for the net box, so that the foundation construction cost is reduced, and the profit is increased; the wind turbine generator foundation is beneficial to forming an ideal aquatic farm environment and increasing the aquaculture profit; combined distribution of the aquaculture net box and the wind turbine generator foundation can play a good role in marine ecology improving and intensive facility aquaculture coordinated development.

The invention discloses a light semi-submersible deep sea net cage with a modular space truss structure. The net cage is characterized in that: a net cage frame is constructed and expanded by truss nodes and truss rod pieces in a modular mode and comprises a totally-closed or bottom-opened semi-closed light cage-shaped space truss structure and a semi-submersible truss arranged on the light cage-shaped space truss structure; the truss nodes comprise buoyancy adjustable nodes and buoyancy non-adjustable mechanical nodes, and the truss rod pieces comprise connecting rods among the buoyancy adjustable nodes, connecting rods among the mechanical nodes and connecting rods among interlayer nodes; the light cage-shaped space truss structure is a multi-layer truss in the internal and external directions; the semi-submersible truss comprises a buoyancy adjustable layer; and a plurality of light schemes are respectively constructed on the top surface truss, the side surface trusses and the bottom surface truss. A standardized structure is adopted, the universality of parts is good, the structure is simple, production, installation and maintenance are convenient, the loss rate of aquaculturewater due to ocean currents and stormy waves is small (smaller than or equal to 5%), the unit use cost of equipment is greatly reduced, and a road is laid for large-scale offshore aquaculture.

The invention relates to a method for extracting an offshore culture raft extraction index based on a hyperspectral remote sensing image. The method comprises the following steps: carrying out the preprocessing of hyperspectral data, and the preprocessing comprises the orthorectification, radiometric calibration, atmospheric correction and image cutting; analyzing spectral features of ground features, constructing an offshore culture raft extraction index of the hyperspectral remote sensing image, and distinguishing culture rafts, background water, vegetation and other ground features according to a threshold value of the offshore culture raft extraction index of the hyperspectral remote sensing image; and calculating the region information of the culture raft extraction result, and filtering misclassification pixels with the region smaller than a set value. The invention has the beneficial effects that the process and difficulty of extracting the existing culture raft are simplified, the spectral information of the culture raft on the hyperspectral image is analyzed, and the hyperspectral data-based offshore aquaculture raft extraction index is constructed by increasing the spectral gap between the culture raft and other ground objects. The difference between the culture raft and other ground features is increased, and the culture raft is extracted by using threshold segmentation according to a culture raft index result.

The invention discloses a floating type ecological wetland system suitable for a coastal bay and a construction method, aims at solving the current ecological environment problems of coastal ecological shoreline degradation, biodiversity reduction, ecological function degradation, environmental bearing capacity reduction and the like, and can build a habitat for coastal zone organisms, enrich the biodiversity and improve the water quality of shallow bay coastal water areas. The system comprises a plurality of floating island single bodies which are connected in series and spliced, a plurality of lifting ropes are hung at the bottoms of the floating island single bodies, a plurality of oyster shells are arranged along the lifting ropes, and salt-resistant and flood-resistant emergent aquatic plants are planted above the floating island single bodies. The method comprises the following steps: manufacturing floating island monomers; transplanting salt-resistant and flooding-resistant emergent aquatic plants cultivated in a laboratory or a seedling field to the upper part of the floating island monomers according to a certain interval; placing the floating island monomers in a laboratory cultivation room or an offshore aquaculture area, and waiting for rejuvenation and growth of plants above the floating island monomers and attachment of young oysters; and splicing multiple cultured floating island monomers in a multi-stage series connection mode.

The invention provides a large platform type offshore aquaculture system which comprises a semi-submersible platform and a lifting aquaculture device. The lifting aquaculture device is arranged on thelower portion of a vertical column of the semi-submersible platform and comprises an upper frame and a lower frame, the periphery of the upper frame is connected with the periphery of the lower framethrough four connecting rods, the upper frame is provided with a movable frame, two winding motors are parallelly arranged on the movable frame, two ropes are wound on the winding motors, two spacerrods are erected between the middles of a front cross rod and a rear cross rod of the lower frame, the two spacer rods and the two cross rods of the lower frame form an opening, a supporting plate isconnected between a vertical rod of the lower frame and each spacer rod, a first limit plate is horizontally arranged between a left connecting rod and a right connecting rod among the four connectingrods, a second limit plate is horizontally arranged between two fixing plates, and limit components are arranged on the two spacer rods. A large aquaculture platform is implemented, and aquaculture is facilitated.

The invention discloses a method for improving environments of fishery aquaculture lakes, relating to the technical field of agriculture. The method comprises the following steps: (1) selecting and planting grass: selecting and planting hydrilla verticillata, and adding nutrition liquid during the planting; (2) selecting a planting environment: planting at a place which is 1-3 meters from a lakeshore and 1-2 meters from the water surface in early spring, wherein the planting interval is 10cm-20cm; (3) planting aquatic plants: uniformly spreading the grass seeds into the lake surface, waiting until the grass seeds submerge to the lake bottom to sprout and grow, and adding sprouting nutrition liquid during the sprouting; and (4) monitoring the aquatic plants: detecting the water quality by virtue of a water quality sensor, mounting a monitoring camera, and monitoring the growth conditions of the aquatic plants by virtue of the monitoring camera. By virtue of the method, the environments of the fishery aquaculture lakes can be conveniently improved, the real-time monitoring is realized, the use of the method is convenient, the operation is simple and convenient, and the working efficiency is high.

The invention discloses a large-scale deep-sea fixed type anti-stormy-wave breeding platform, and relates to the field of mariculture. The platform comprises: an outer frame erected on the sea, wherein the outer frame comprises a vertical pipe structure, a top horizontal pipe structure, a middle horizontal pipe structure, and a bottom horizontal pipe structure. Through holes in the lower portion of the outer frame are sealed through lower fixing nettings. Liftable nettings are arranged above the middle horizontal pipe structure, wherein the liftable nettings comprise a top horizontal netting and four lateral nettings, the four lateral nettings are connected to the vertical pipe structure in a sliding manner, and the telescopic netting is used for covering connecting gap of the lateral nettings and the top horizontal netting at the position of the vertical pipe structure. In a stormy-wave-free mode, the liftable nettings are lifted to the highest point and are located close to the lower portion of the top horizontal pipe structure; in a stormy wave mode, the liftable nettings descend to the lowest point and are located above the bottom horizontal pipe structure. The aquaculture space utilization rate of the offshore aquaculture platform is increased, and stormy waves can be effectively resisted.

The invention discloses a fish box for long-distance transportation of fishery aquaculture. The fish box comprises a fish box body; the fish box body is composed of a cover plate, a pouring jacket anda fish channel; a feeding hole is formed in the center of the cover plate; one side of the pouring jacket is provided with a glass window; the outer side and bottom end of the fish channel are connected with springs; the other ends of the springs are fixedly connected with the inner surface of the pouring jacket; one side of the fish channel is connected with a water level display tube; and the inner wall of the fish channel is provided with a water purifier. According to the fish box for long-distance transportation of fishery aquaculture, due to the arrangement of a filtering chamber, excreta of fishes and spots in water can be screened; due to the arrangement of a funnel, the excreta of the fishes and the spots can be collected; due to the arrangement of an oxygenator, the sufficient oxygen content in the water is guaranteed; due to the arrangement of a water pump and the water purifier, the automatic circulating water purification operation can be realized, the good water qualitycan be guaranteed; and the springs are connected between the fish channel and the pouring jacket, so that a buffering effect is achieved.

The aim of the present invention is to propose an offshore aquaculture installation in a healthy environment for fish, having the smallest possible impact on the environment in terms of pollution, with a combination of technical means ensuring the stability of the structure and the safety of humans, with all the equipment necessary for easy offshore operation. This aim achieved by an offshore aquaculture installation comprising one or a plurality of cages (1) for breeding fish and a floating structure (2) that is ballasted and submersible. The installation is characterised in that it comprises a main anchoring device having an anchor line (3) linked on one side (6) of the structure (2) and capable of being anchored on the other side to a single anchoring point (4) in the installation environment, the structure comprising at least two parallel casings (5) containing adjustable ballasts, said casings (5) being in installed at the bottom of each of the lateral face (7) of the structure (2), in that the cage or cages (1) is / are square or rectangular, and in that the upper portion of the installation constitutes a handling bridge providing access to the cages.

The invention relates to a treatment method for performing acute stress on megalobrama amblycephala, and belongs to the technical field of fish aquaculture. The treatment method comprises the steps of selection of material fish, aquaculture of the material fish, cortisol injection and blood collection to obtain a sample. By limitation to the aquaculture water for experimental fish, the temperature and the density, stress caused by other factors can be avoided; a stress background value caused by fishing and injection is reduced by an anaesthesia method, and finally cortisol is injected quantitatively; compared with the conventional stress sampling method, the treatment method has the advantages of repetitiveness, liability for control and the like.

The invention discloses a low-cost offshore aquaculture water quality monitoring system and method, and belongs to the technical field of water quality monitoring. A pressure-resistant bin is draggedby a cable and an anchor block to float up and sink down, data of each sensor is collected on different water depth surfaces, the collected water quality data is sent to a data center of a monitoringplatform after water is discharged, and a real-time monitoring result is published through a website after storage, analysis and processing. The system can realize real-time monitoring of profile water quality in the field of offshore aquaculture, and has the advantages of simple structure, long transmission distance, low cost and power consumption, capability of meeting large-scale deployment, capability of realizing profile hydrological data measurement and the like. The cable winding device is used for achieving measurement of profile data under the whole water depth, the laying number of sensors is reduced, and the spatial resolution of hydrological data is improved. A wireless sensor network is established based on a 6LoWPAN scheme, and the number of nodes is increased.

The application discloses an onshore aquaculture pond with at least one aquaculture cabinet. The onshore aquaculture pond includes the at least one aquaculture cabinet, wherein the at least one aquaculture cabinet is placed in the onshore aquaculture pond, the at least one aquaculture cabinet includes a cabinet rack, aquaculture boxes, and gate devices, and the front side of the cabinet rack is provided with a plurality of frame rooms or the front side and the back side of the cabinet rack are provided with a plurality of frame rooms; adjacent frame rooms communicate with one another, the upper surface of the cabinet rack is closed, at least one lifting lug is arranged on the cabinet rack, and guide blocks or no guide block are arranged on the left and right sides of the cabinet rack; theaquaculture boxes are horizontally inserted in the frame rooms and can be pulled in and out; each aquaculture box is a drawer-type box body with an upper opening, permeable holes are formed in each side of each aquaculture box, and a feeding port is formed in the front side of each aquaculture box; the gate devices are connected in front of the aquaculture boxes of the at least one aquaculture cabinet; when the at least one aquaculture cabinet is put into the onshore aquaculture pond, the feeding ports are blocked and closed by gates; and when the at least one aquaculture cabinet is raised tothe surface of the onshore aquaculture pond, the feeding ports are opened and exposed.