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69 results about "Aquatic organisms" patented technology

Definition of Aquatic organism Aquatic organism means an individual member of any species of fish, mollusk, crustacean, aquatic reptile, aquatic amphibian, or aquatic insect or other aquatic invertebrate. "Aquatic organism" includes the viable gametes (eggs or sperm) of an aquatic organism.

Observation method for aquatic organisms using tank equipment and observation devices of tank equipment

PendingJP2026109803AEquipment observationEnvironmental engineering
This invention provides a tank facility that allows for the accurate observation of aquatic organisms within a tank using observation equipment. [Solution] A tank facility equipped with an observation device 11 for observing aquatic organisms 2 in a tank, wherein the observation device 11 comprises a cylindrical member 15, a photographing device 17 for photographing the aquatic organisms 2 in the tank, and a background member 22 that constitutes the background of the photographed aquatic organisms 2, the cylindrical member 15 having its upper end closed and protruding above the water surface 28 in the tank, and its lower end open and immersed below the water surface 28 in the tank, the photographing device 17 includes the background member 22 in its photographing range 30, the background member 22 is positioned below the lower end of the cylindrical member 15, and a movable space S is formed between the lower end of the cylindrical member 15 and the background member 22, through which the aquatic organisms 2 can pass.
Owner:KUBOTA CORP

Highly efficient and water-saving tiered aquaculture tank

This invention provides a high-efficiency, water-saving, tiered aquaculture tank, belonging to the field of aquaculture technology. It addresses the problem in existing tiered aquaculture tank structures where the height and position of the upper tank limit the ability of workers to quickly and flexibly access aquatic organisms in all corners of the upper tank. The invention includes a support frame, a movable tank, supporting rails, an easy-access component, and a partition component. The movable tank is located at the top of the support frame. Two supporting rails are fixedly connected to the left and right sides of the support frame. The easy-access component is located at the top of the support frame. The partition component is located inside both the fixed and movable tanks. This invention solves the problem of inconvenient operation of the upper movable tank through the easy-access component, facilitating the retrieval of aquatic organisms and the feeding of materials. Simultaneously, the partition component allows for flexible separation of the internal space of the fixed and movable tanks, meeting diverse aquaculture needs.
Owner:王雷

A shaftless pump for water temperature regulation and an aquaculture system using the shaftless pump

This invention relates to the field of aquaculture equipment technology, and discloses a shaftless pump for water temperature regulation and an aquaculture system using the shaftless pump. The system includes: a longitudinally arranged cylindrical body with an open bottom; multiple nozzles arranged circumferentially on the upper side wall of the cylindrical body; an annular outer rotor rotatably connected to the cylindrical body; a multi-pole permanent magnet stator fixedly embedded in the cylindrical body on the outer circumferential surface of the outer rotor, with the stator and the multi-pole permanent magnet radially opposite each other; a shaftless rotor impeller connected to the outer rotor for rotation under the drive of the outer rotor to transport water; and a frequency converter electrically connected to the stator windings for vector and torque control to achieve smooth start-stop and speed regulation. This shaftless pump aquaculture system can efficiently, environmentally friendly, and safely regulate water temperature; the entire water temperature regulation can be automatically closed-loop controlled, and temperature regulation can be achieved without reducing oxygen levels, ensuring the healthy growth of aquatic organisms.
Owner:SHIYAN GRUI ZHIDE PRECISION TECHNOLOGY CO LTD

system

We provide the system. [Solution] A means for collecting behavioral and environmental data of aquatic organisms, A means of preprocessing collected data to generate an integrated dataset, A means for executing an AI algorithm that analyzes the behavioral patterns of aquatic organisms using an integrated dataset, A means for generating environmentally friendly fishing guidelines based on analysis results, A means of distributing the generated guidelines to the user's terminal, A system that includes this.
Owner:SOFTBANK GROUP CORP

Feeding devices for aquaculture

This utility model discloses a feeding device for aquaculture, relating to the field of aquaculture technology, specifically a feeding device for aquaculture. It includes a base, a feeding mechanism at the top of the base, a spreading device at the outlet of the feeding mechanism, a collecting net on the left side of the base directly below the spreading device, and a first winding mechanism and a second winding mechanism on the left and right sides of the collecting net. The first winding mechanism and the second winding mechanism allow the collecting net to move up and down. A telescopic mechanism is also provided between the collecting net and the spreading device, allowing the collecting net to unfold or retract. The spreading device is driven by a sixth motor to rotate a turbine fan, causing the feed falling from the spreading outlet to rotate at a uniform speed and be evenly distributed. After the aquatic organisms have finished consuming the feed, the collecting net rises to collect any uneaten feed, preventing it from affecting the aquaculture area.
Owner:HANGZHOU LANHU ECOLOGICAL AGRICULTURE DEVELOPMENT CO LTD

An environmental DNA-based rare and endangered aquatic organism monitoring and alarming device

This invention relates to the field of biodiversity monitoring technology and discloses a monitoring and alarm device for rare and endangered aquatic organisms based on environmental DNA. The device includes a sampling and enrichment unit, a nucleic acid in-situ extraction and purification unit, a isothermal fluorescence detection unit, an environmental factor monitoring unit, a main control and data transmission unit, a power supply and protection unit, and a remote alarm and control platform. The main control and data transmission unit obtains the pressure change rate based on the digital pressure signal output by the microcomputer-controlled pressure sensor, extracts the high-precision peristaltic pump operating time parameter to calculate the actual filtration volume, and performs a division operation to obtain the environmental DNA calibration concentration. It then calculates the dynamic transmission power value by combining the network signal strength indicator value and transmits the complete communication data packet. The remote alarm and control platform obtains a risk index based on the environmental DNA calibration concentration, maps the spatial coordinate signal to an electronic map module to generate coordinate nodes, and displays the risk index and digital environmental parameters in association.
Owner:YUNNAN ACAD OF ENVIRONMENTAL SCI

An image recognition method and system for style transfer of aquatic organisms

The application provides a kind of style migration of aquatic organism image recognition method and system, it is related to image recognition technical field.The method includes the following steps: obtaining aquatic organism image in aquaculture environment;Disease characteristic extraction is carried out to the obtained aquatic organism image, and disease characteristic information is obtained;According to disease characteristic information, generate disease characteristic indication map;The style migration operation is executed to the obtained aquatic organism image, and the aquatic organism image after style migration is obtained;The aquatic organism image after style migration is superimposed with disease characteristic indication map and is displayed, and the superimposed display image is obtained;Using superimposed display image, disease identification is carried out to aquatic organism.The method of the application makes up the defect that traditional style migration may cause disease information loss, improves the accuracy of identification and the explainability of result, and then enhances the value of system in early warning and artificial decision.
Owner:HUAZHONG UNIV OF SCI & TECH

Artificial ecosystems for enhancing wetland biodiversity and methods of constructing the same

ActiveCN118993358BBiological treatment apparatusFood chainBiological organism
The application discloses an artificial ecosystem for improving wetland biodiversity and a construction method thereof, and the artificial ecosystem comprises a first-stage water system, a second-stage water-land system and a third-stage diversity ecosystem. The construction method of the artificial ecosystem is as follows: water area construction, enclosed water area construction; crop planting, block planting of crops in the water area; fishway construction, fish pool construction and seed pool construction, the seed pool is constructed near the water inlet of the water area; fruit forest construction, local flowering and fruiting trees are planted on the embankment around the water area; installation of insect luring lamps and release of aquatic organisms. The artificial ecosystem with high productivity and capable of recycling is constructed, a complete and stable food chain is constructed for the restored or built wetland, and the problem that the biodiversity of the restored or built wetland is difficult to improve and maintain after improvement is solved.
Owner:INST OF ZOOLOGY GUANGDONG ACAD OF SCI +1

An integrated method for catching, transporting and domesticating a species of poecilia reticulata

PendingCN122271255APoeciliaBarb
This invention relates to the field of endangered aquatic biological resource protection and aquaculture technology, specifically to an integrated method for the harvesting, transportation, and domestication of the wavy-lipped barb, comprising the following steps: S1, behavioral adaptation-based nocturnal dive-fishing and decompression: during the wavy-lipped barb's nocturnal dormancy period, the target fish are gently induced into a pressure-regulating container; the fish are then safely transported to the water surface; S2, multi-stage live-preservation transportation: the fish treated in S1 are first transported via a live-water vessel for rehabilitation at sea, and then smoothly transferred via a live-water truck on land; S3, gradient-adaptive artificial domestication; S4, live germplasm resource preservation. This invention ensures that wild wavy-lipped barbs receive physiological protection at each transfer point, maximizing the maintenance of their internal environmental homeostasis, thereby increasing the overall survival rate to nearly 100% and providing high-quality, healthy parent fish for subsequent artificial breeding.
Owner:HAINAN ACADEMY OF OCEAN & FISHERIES SCI

Aquaculture apparatus

An apparatus (2) for growing aquatic organisms in a body of water, and a harvesting apparatus for harvesting aquatic organisms therefrom is provided. The apparatus comprises an elongate floating member (4) arranged to float on a surface of the body of water; a headline (6) connected to the floating member and arranged to extend parallel to the floating member below the surface of the body of water; a plurality of fastening devices (8), each comprising a connection point for connecting to the headline and a rigid crossbar coupled to the connection point, such that the crossbar extends perpendicular to the headline when the connection point is connected to the headline; and an elongate collector (10) on which aquatic organisms can grow, arranged to be suspended from the rigid crossbars of the fastening devices and held flat across substantially an entire width of the elongate collector.
Owner:SMART FARM

A method and system for reconstructing an urban river ecosystem based on tail water of a sewage treatment plant

The present application relates to the technical field of urban water ecological system regulation and management, and particularly relates to a method and system for reconstructing an urban river ecological system based on tail water of a sewage treatment plant. The method comprises the following steps: introducing tail water of the sewage treatment plant into a parallel or surrounding artificial wetland deep purification corridor for purification, collecting the purified tail water quality, mixing the purified tail water quality at a water distribution hub, and implementing pulse ecological water replenishment to the downstream of the river through a pre-set intelligent dam; collecting initial topographic data of the smooth hard river, determining habitat size parameters in combination with habitat conditions required for aquatic organisms to survive, and reconstructing the river topography to form a sequence of habitat units. The present application reconstructs a tail water type river ecological system with rich biodiversity, self-purification capacity and self-maintenance capacity to improve the controllability and long-term stability of urban ecological engineering.
Owner:SHENZHEN GUANGHUIYUAN ENVIRONMENT WATER CO LTD

A coupling method for determining regional surface water environmental quality ranking

This invention discloses a coupled method for determining the ranking of regional surface water environmental quality. The steps include: acquiring water quality monitoring data of the study area; calculating water quality indices for individual parameters, cross-sections, and the region based on the Class III limits of the "Surface Water Environmental Quality Standard" (GB 3838-2002) to obtain a regional surface water environmental quality ranking based on the CWQI method; calculating the ranking based on the importance of water quality parameters to aquatic organisms using the CWWQI method; evaluating the water quality of each cross-section using the SIE&W-F&PNN method; and verifying the ranking results of the CWQI and CWWQI methods to determine the most reasonable ranking. This invention provides a coupled method for determining regional surface water environmental quality ranking using CWQI, CWWQI, and SIE&W-F&PNN, making ranking-based financial rewards or deductions more convincing.
Owner:TIANJIN AGRICULTURE COLLEGE

A method for preparing rainbow trout tetraploid fry

The present application relates to the field of aquatic organism breeding technology, and particularly relates to a method for preparing rainbow trout tetraploid fry. The method provided by the present application comprises the following steps: obtaining fertilized eggs by dry fertilization of naturally matured rainbow trout parents, inducing the rainbow trout fertilized eggs to obtain tetraploid rainbow trout after 6.2-6.4 hours, and the duration of the induction is 10-18 minutes; after the tetraploid rainbow trout fry is obtained by induction, the chromosome ploidy of the fish is determined by using techniques such as chromosome karyotype analysis and flow cytometry DNA content determination, and the tetraploid rainbow trout fry is identified and screened for cultivation. The present application adopts a drug induction method, and controls the starting time and duration of the induction to inhibit the first mitosis time of the fertilized eggs, thereby improving the induction rate and survival rate of the tetraploid rainbow trout, and the induction rate of the tetraploid rainbow trout can reach 25-30%, and the survival rate of the fry can reach more than 90%.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

A method for detecting the degree of stress of river water ecology

PendingCN122288477AAquatic ecosystemHydrometry
This invention relates to the field of water pollution detection technology and discloses a method for detecting the degree of stress on river aquatic ecosystems. The method includes: acquiring river drought indicators, environmental water quality indicators, and aquatic organism status indicators and constructing a synchronous monitoring sequence; calculating the cross-correlation between indicators and determining the characteristic lag step; correcting the temporal offset of the synchronous monitoring sequence based on the characteristic lag step and constructing a time-aligned feature data matrix; calculating the correlation components of each indicator relative to the evaluation standard and establishing a correlation model; identifying the variation nodes of aquatic ecosystem state variables and fitting the probability density function of the feedback evolution sequence to determine the evaluation threshold and confidence interval. This invention eliminates the logical bias caused by the sampling synchronicity assumption, making the assessment process conform to the hydrological and biochemical evolution law and improving the physical self-consistency of aquatic ecosystem stress identification.
Owner:SHENZHEN POLYTECHNIC

An integrated biochemical purification device for ornamental aquatic organisms

ActiveCN224430384UBiotechnologyFilter media
This utility model relates to the field of water purification technology, providing an integrated biochemical purification device for ornamental aquatic organisms, including a mounting plate; a purification box mounted on the mounting plate, the purification box containing a detachable placement tray; several planting baskets on the placement tray for placing filter media and aquatic plants with water purification functions; a filter shell fixed on the mounting plate, the filter shell containing a mesh ring and a filter plate; several return pipes fixedly connected to the filter shell; and a pumping mechanism inside the purification box for pumping out the water to be purified. The integrated biochemical purification device for ornamental aquatic organisms provided by this solution has an overall structure adapted to the ornamental environment, meeting the needs of ornamental aquatic organism breeding for water purification, ecological stability, and landscape harmony.
Owner:WUHAN SHUIZHIGUO ENVIRONMENTAL PROTECTION TECH CO LTD

Combination of snp sites related to resistance to aquatic pathogenic viruses in d2hgdh gene of rice field eel and application thereof

PendingCN122445813ABiotechnologyStart codon
The application belongs to the field of aquatic organism breeding, and particularly relates to a rice field eel D2HGDH The application relates to a SNP site combination related to a gene and resistance to aquatic pathogenic viruses and application thereof. D2HGDH The SNP site combination related to the gene and resistance to the rice field eel rhabdovirus is located at the 149th, 365th, 394th, 902nd and 939th base from the start codon of the gene. D2HGDH The detection of the SNP site combination of the gene can screen the individuals resistant to the rhabdovirus of the rice field eel. Therefore, the SNP molecular marker can be used for molecular marker assisted breeding of the rice field eel, accelerates the breeding of the disease-resistant rice field eel, and provides a reference for the disease-resistant breeding of the rice field eel.
Owner:YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Protein-sugar hydrolysate from sunflower meal

PCT designated stageWO2026111613A1Protein composition from vegetable seedsAnimal feeding stuffBiotechnologyAntinutrient
The group of inventions relates to the field of processing oily raw material, and more particularly to a novel product in the form of a protein-sugar hydrolysate (PSH) obtained from sunflower meal, a method for producing same by enzymatic hydrolysis, and PSH-based food and feed products. The PSH contains 40-70% protein, 20-40% sugar, and at least 0.02% caffeic acid in free form or in bound form as part of chlorogenic acid isomer molecules. In addition, the PSH has a total branched-chain amino acid content of at least 30 g / kg of the final product (PSH), and an arginine content of at least 20 g / kg PSH. The resulting PSH does not contain antinutrients and serves as an excellent substitute for animal protein in food products and in diets for aquatic organisms, livestock and domestic pets. The claimed novel method is safe, environmentally-friendly, waste-free and allows flexibility in terms of the operations and ingredients used in the production process.
Owner:JOINT CO ASTON FOODS & FOOD INGREDIENTS (JSC ASTON)

An isoxazoline pyridazine derivative, its preparation method and application

PendingCN122301860APyridazineToxicology
This invention belongs to the field of pesticide chemistry. This invention provides an isoxazoline pyridazine derivative, which is a compound represented by general formula I or II or its stereoisomers, polymorphs, isotope labels, or pharmaceutically acceptable salts. The isoxazoline pyridazine derivative of this invention exhibits significant insecticidal activity and broad spectrum, achieving a corrected mortality rate of 23.81%–100.00% against diamondback moth, 17.78%–88.89% against Asian corn borer, and 20.00%–93.33% against peach aphid. The isoxazoline pyridazine derivative of this invention also shows LC50 activity against zebrafish. 50 ≥10 mg / L, which falls under the low-risk category for aquatic organisms and has low environmental risk.
Owner:WUHAN INST OF TECH +1

A landscape ecological pond

ActiveCN224440096UZoologyLotus
This utility model belongs to the field of landscape ecological ponds, and particularly relates to a landscape ecological pond, including a landscape ecological pond with multiple auxiliary pond support cabinets installed in a circular pattern on the outer wall of the landscape ecological pond; auxiliary ponds, installed on top of the auxiliary pond support cabinets; and a partition structure set on top of the auxiliary ponds. In this utility model, staff can raise various aquatic organisms and plant ornamental plants such as lotus flowers in the landscape ecological pond for tourists to enjoy, or raise a single aquatic organism independently in the auxiliary ponds. The auxiliary ponds are completely transparent, so that tourists or staff can directly observe the living habits and growth status of a certain organism in the auxiliary ponds. The first and second baffles prevent tourists' hands from reaching into the auxiliary ponds, and the aquatic organisms in the auxiliary ponds can be fed through the feeding hole on the second baffle.
Owner:MENGCAO ECOLOGICAL ENVIRONMENT (GRP) CO LTD

An aquaculture tank

ActiveCN224460899UFiltrationWater quality
The utility model discloses an aquaculture box, including the aquaculture box and the circulation filter pipeline, the inside of aquaculture box is provided with the fixed plate, the inside of fixed plate is provided with movable plate frame, wherein, a plurality of filter holes are seted up on the fixed plate, the inner slide groove is seted up in the filter hole, movable plate frame slidingly connected in the inner slide groove inner wall, the one side of aquaculture box is seted up and lets the position strip hole, movable plate frame tail end slidingly connected in the inner wall of position strip hole, the movable plate frame is provided with a plurality of hole diameter size adjusting ends for adjusting the caliber of filter hole, the filter hole caliber is adjusted through the sliding movable plate frame, and the big particle impurity can pass as needed, or the caliber is reduced and the small impurity is intercepted, and the dynamic adaptation different aquaculture stage, water quality situation reduces the jam, and the breeding cleaning interception net does not need to be interrupted frequently, reduces the stress influence to water quality and aquatic organism, and the stable water circulation guarantees the filtration system efficiency.
Owner:王帅

Aquaculture feed compositions containing charcoal

ActiveCN117015310BClimate change adaptationAnimal feeding stuffShrimpCrustacean
This invention relates to the field of aquaculture feed compositions, and specifically to the feeding and aquaculture of aquatic organisms, including fish such as sea bream and crustaceans such as shrimp. The invention provides an aquaculture feed composition in pellet form, the aquaculture feed composition having a specific size, containing a high weight percentage of protein, and including a carbon source. Results show that this aquaculture feed composition has different benefits than prior art aquaculture feed compositions.
Owner:NUTRICK INTELLECTUAL PROPERTY PTY LTD

Aquatic biomass estimation

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for aquatic biomass estimation. One of the methods includes obtaining an image of an aquatic environment including aquatic grass; providing the image to a network model trained to construct a point cloud indicating a portion of the image that represents the aquatic grass; generating a floor model indicating a floor of the aquatic environment where the aquatic grass grows; identifying, using (i) the floor model and (ii) the point cloud indicating the aquatic grass, (i) a first subset of points in the point cloud as indicating aquatic grass and (ii) a second subset of points in the point cloud as indicating the floor of the aquatic environment; and generating, using the first subset of points in the point cloud, an indication of biomass within the aquatic environment.
Owner:TIDALX AI INC

Primer pair and method for identifying genetic sex of Chinese softshell turtle and application

The invention relates to the technical field of aquatic organisms, and particularly discloses a primer pair and method for identifying the genetic sex of Chinese softshell turtles and application of the primer pair. The primer pair comprises 13448-F shown in SEQ ID NO.2 and 13448-Rshown in SEQ ID NO.3. The method comprises the steps that DNA of a sample to be detected is extracted, PCR amplification is conducted through the primer pair, and the sex is judged according to the agarose gel electrophoresis detection result. The primer pair provided by the invention can realize accurate and lossless sex identification in an embryonic stage or a juvenile soft-shelled turtle stage, and provides a key tool for genetic sex control breeding and unisexual fry production of the Chinese soft-shelled turtles.
Owner:HUNAN UNIV OF ARTS & SCI

River aquatic organism behavior response monitoring device and monitoring method thereof

The application relates to the technical field of river aquatic organism behavior reaction monitoring, and discloses a river aquatic organism behavior reaction monitoring device and a monitoring method thereof. The river aquatic organism behavior reaction monitoring device comprises a body, a buoy is fixedly installed at the bottom of the body, a cavity is arranged in the buoy, and a conical cover is fixedly installed at the top of the body. The river aquatic organism behavior reaction monitoring device and the monitoring method thereof are used for better monitoring. When the device body is placed in a target river water area, the adjusting assembly is used in cooperation with a servo motor, a rotating shaft, a driving gear, a rotating drum, a driven gear, a fixed pipe, a bent pipe, an internal circular sliding rail, an internal sliding block, a controller, a hose and a monitoring box, so that the light source and the camera can work and rotate at the same time. In cooperation with a vertical rod, a wheel frame, a roller, a clamping block and a pipe clamp, the monitoring box can move more stably.
Owner:INSTITUTE OF FISHERIES SCIENCES ACADEMY OF AGRICULTURAL & ANIMAL HUSBANDRY SCIENCES OF TIBET AUTONOMOUS REGION

A regulating circuit for a cruise device for removing intruding organisms

PendingCN122101471AAuxillariesInvasive species monitoringWater qualityControl theory
The present application relates to the technical field of biological prevention, and especially relates to a control circuit of a cruise cleaning device for stream-intruding organisms, which comprises a first general control circuit, a second general control circuit and a power supply; the first general control circuit comprises a self-locking motor up pull branch and a self-locking motor down drop branch controlled by a first double-control switch; the second general control circuit comprises a first control branch for controlling rotation of a general motor, a second control branch for controlling movement of the general motor, and a third control branch for controlling a biological recognition and electric shock mechanism located on the left side of a ship body and a biological recognition and electric shock mechanism located on the right side of the ship body. The circuit can effectively realize automatic cruise work of the ship body in water areas, and can complete recognition and electric shock collection work on aquatic organisms during the automatic cruise process, so as to realize cruise cleaning of stream-intruding organisms without damaging water quality.
Owner:NANCHANG UNIV

An automated drinking water sample collection device

The application relates to the technical field of drinking water sample collection, in particular to an automatic drinking water sample collection device, which comprises a mounting seat, a pump machine is installed at the upper end of the mounting seat, a connecting pipe A is connected to the output end of the pump machine, a connecting pipe B slides on the outer side of the connecting pipe A, a sleeve is connected to one end of the connecting pipe B, a filter screen is connected to the end, away from the connecting pipe B, of the sleeve, a guide rail is installed in the sleeve, and a counterweight and a sealing plug vertically slide along the guide rail in the sleeve. The device drives fish groups and aquatic organisms near the sleeve by forming bubbles and sound in the water body, prevents fish swimming and body mucus and excrement and the like from polluting the water sample, reduces the interference of biological factors on the water quality detection result, meanwhile, the gas forms a disturbance zone around the sleeve, the water body near the sleeve affected by biological secretions can be preliminarily discharged or diluted before the formal water sample is taken, and the detection data deviation is reduced.
Owner:CHANGZHOU CENT FOR DISEASE CONTROL & PREVENTION

fish tank

1. Name of the product in this design: Fish tank. 2. Purpose of this design: for the ornamental and aquatic life. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.
Owner:张显伟

A soft-shelled turtle breeding pond system with bottom pollution discharge function

PendingCN122296276AGeomembraneSludge
This invention relates to the field of aquaculture systems, specifically to a turtle farming pond system with bottom drainage function. The system includes a pond body covered with a geomembrane. A sludge collection tank is located at the lowest point of the pond bottom. A screen is positioned at the upper end of the sludge collection tank. A suction pipe is arranged along the upper or lower surface of the geomembrane. A point-type bottom aerator is located on the upper surface of the geomembrane, and an exhaust device is located on the lower surface. Water-pushing aerators are located at the four corners of the pond body, and floating plant beds are located at the rear ends of the aerators. This invention requires only simple modifications to existing turtle farming ponds to collect uneaten feed, aquatic organism excrement, etc., in the central sludge collection tank and remove them from the water, reducing the pond's own purification burden and increasing stocking density and survival rate.
Owner:YANGZHOU WUHUSIDANG AQUATIC TECHNOLOGY CO LTD

An automatic lifting intertidal zone epineuston collecting device and investigation method

PendingCN122342383ATidal waterFishery
This invention discloses an automatically raising and lowering intertidal upper-layer aquatic organism collection device and survey method, comprising: a pile, a connecting cable, a guide rod, a collar, a limiting component, a float, a net frame, a collection net, a net tail support ring, and a sample collection container; the pile is a hollow tubular structure vertically inserted into the bottom of the mudflat; the guide rod is vertically set and its bottom end is fixed to the bottom of the mudflat; the connecting cable connects the pile and the guide rod; the collar is fitted onto the guide rod and can slide up and down along the guide rod; the float is fixedly connected to the collar; the net frame is fixedly connected to the float; the collection net is a conical net; the net tail support ring is set inside the net tail of the collection net; and the sample collection container is connected to the net tail of the collection net. This invention utilizes the buoyancy of the float to automatically raise and lower with the tidal water level, and the net opening always remains horizontal and facing the direction of the water flow, efficiently and passively collecting upper-layer aquatic organisms drifting with the water flow without human intervention, allowing for long-term continuous monitoring, and has the advantages of simple structure, convenient installation, and high sample purity.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI