152 results about "Juvenile fish" patented technology

The invention provides an AI-based trachinotus ovatus juvenile fish culture water parasite prediction and prevention method and system, and the method comprises the steps: collecting multi-source data from a culture water body through a sensor array, including a nucleic acid signal, a fish school behavior track and an environment parameter sequence, and obtaining an original data set; unifying the data format and the acquisition frequency according to the original data set by adopting a time sequence alignment method, and obtaining an aligned feature flow; aiming at the aligned feature flow, applying a convolutional neural network to extract a space-time pattern of a nucleic acid signal and an abnormal index of a fish school behavior, and determining an extracted feature set; if the abnormal index in the extracted feature set exceeds a preset threshold value, a causal association between environmental parameters and parasitic risks is classified through a support vector machine, and a preliminary risk level is judged; simulating a water body change scene according to the comprehensive causal model to obtain a predicted trajectory of parasite propagation; and determining a quantitative score of the parasite risk and generating a prevention and control instruction sequence by comparing the predicted trajectory with the real-time monitoring data.

A juvenile fish cultivation apparatus and method, relating to the technical field of aquaculture. The juvenile fish cultivation apparatus comprises a cultivation tank (1), a visual identification apparatus (3), a translation mechanism, and a feeder capable of timed activation. A cultivation pond (2) is provided in the cultivation tank (1); the cultivation pond (2) is divided into three feeding areas by means of partition plates (9); isolation holes (11) and a fish pass gate (10) capable of opening and closing are provided on each partition plate (9); and fish guiding devices (5) are provided in the feeding areas located on both sides. The feeder is translated by means of the translation mechanism; the translation direction is perpendicular to the arrangement direction of the feeding areas; and the feeder can swing reciprocatingly for feeding. The visual identification apparatus (3) comprises a visual module and a control module; when the visual module detects that a juvenile fish in the middle feeding area has grown to a preset large-size, the fish pass gate (10) opens and the fish guiding devices (5) are started; and when there is no juvenile fish in the middle feeding area, the fish pass gate (10) closes and the fish guiding devices (5) are turned off. Regular and dosed feeding can be achieved, inconvenient feeding caused by aggregated bait is avoided, and a safe growth environment with sufficient feed is provided for small-sized juvenile fishes, thereby reducing the size disparity among juvenile fishes.

The invention provides an automatic bait casting system for training and breeding juvenile plectropomus leopardus, which comprises a basic data module connected with an automatic bait training device and used for acquiring original data of a breeding pond and extracting feeding basic data; the dynamic association module is used for carrying out multi-level cross association modeling, causal inference association, sub-mode mining and classification adaptation to obtain an ingestion-turbidity dynamic association model and outputting an ingestion-turbidity relationship; the hunger index module is used for constructing a hunger index model and outputting the hunger index of each culture pond; the feeding strategy module is used for calculating the next feeding interval, the strip-shaped bait-live bait proportion, the actual time point of next feeding and the bait amount per hour and judging whether extra meal or increase of the next feeding interval is needed or not to obtain a self-adaptive feeding strategy; and the feeding driving module is used for controlling the running action of the automatic bait training device. Scientific feeding can be achieved, the feeding survival rate, the growth rate and the bait training effect are remarkably improved, feed waste is reduced, and intelligent and automatic management of the whole process is achieved.

The invention provides an artificial propagation method of Sinilabeo wuyi, and belongs to the technical field of aquatic animal breeding. The artificial propagation method of the Sinilabeo wuyi comprises the steps of parent fish classification, parent fish rearing, artificial spawning induction, natural insemination, artificial insemination, fertilized egg incubation, fry rearing, juvenile fish rearing and the like. The oxytocic is reasonable in compatibility, the injection time of the oxytocic is accurate, the oxytocic rate, the fertilization rate and the hatching rate are increased, and damage to parent fishes is small. According to the method, feeding methods in different stages of fry breeding are also defined, the survival rate of the sinilabeo wuyi fry breeding stage is increased, and a technical support is laid for artificial breeding of the endangered species sinilabeo wuyi.

The invention discloses a zebra fish spermatogonial stem cell separation and transplantation method, and belongs to the technical field of fish germline stem cell separation. The method comprises the following steps: washing complete sexual glands of zebra fish testis by adopting penicillin / streptomycin double-antibody-containing PBS (Phosphate Buffer Solution), physically shearing, digesting and dissociating, and filtering by a screen, so as to obtain zebra fish testis cell suspension; performing density gradient centrifugation to obtain zebra fish spermatogonial stem cells; dyeing, marking, centrifuging, washing, re-suspending, and carrying out micro-injection transplantation to enter the back of the abdominal cavity of the acceptor zebrafish juvenile fish. According to different physical properties of different cells, spermatogonial stem cells are separated, purified and transplanted from zebra fish testis cell suspension by adopting a density gradient centrifugation method, and migration and proliferation processes of donor germ cells can be observed in receptor fish after fluorescence labeling. And a new technical path is provided for fish germplasm resource preservation, endangered fish protection, economic cultured fish yield increase and new variety cultivation.

The invention discloses a method for separating and transplanting spermatogonial stem cells of Chinese sturgeons, and belongs to the technical field of separation of germline stem cells of fishes. The separation method comprises the following steps: washing Chinese sturgeon testis tissues with an L-15 culture medium containing penicillin / streptomycin double antibodies, and carrying out physical shearing, digestive enzyme enzymolysis and screen filtration to obtain a Chinese sturgeon testis cell suspension; performing percoll density gradient centrifugation to obtain high-purity spermatogonial stem cells of the Chinese sturgeons; and dyeing, washing, resuspending and carrying out micro-injection transplantation to enter the gonad primordium reproductive ridge part of the juvenile acceptor fish. According to the physical characteristics of the spermatogonial stem cells of the Chinese sturgeons, the spermatogonial stem cells with high purity are obtained by adopting percoll density gradient centrifugation, and the purpose of abdomen borrowing reproduction is achieved by adopting a microinjection mode, so that the preservation of germ cells of endangered fishes and the reconstruction of artificial populations are realized; and a new technical approach is provided for protecting genetic resources of the Chinese sturgeons and breaking through artificial propagation bottlenecks.

The invention provides a full-indoor artificial breeding method for plectropomus leopardus, and belongs to the technical field of artificial breeding of marine fishes. The full-indoor artificial breeding method for the plectropomus leopardus comprises the steps of earlier-stage incubation of fertilized eggs, incubation in an indoor breeding pond, breeding in an indoor flowing water pond, breeding in an indoor circulating water pond and the like. By regulating and controlling illumination, the irritability of the fries is greatly reduced, the ecological conditions of the fries are effectively optimized, and the health condition and adaptability of the fries are improved. Meanwhile, different types and different total amounts of biological bait combinations are fed in the larva stage, the juvenile stage and the fish stage of the plectropomus leopardus, transition is made in each bait transfer period, enteritis caused by excessive intake of larvae and juveniles and too little intake caused by inadaptation of bait transfer are effectively reduced, and the problem that the survival rate is low in the bait transfer period can be effectively solved.

The invention belongs to the technical field of aquatic genetic breeding, and particularly relates to a grass carp disease-resistant character genome breeding method and related application thereof. According to the method, filial generation juvenile fish families produced by non-family grass carp parents from different geographical sources are used for constructing an anti-hemorrhagic disease reference group, the disease-resistant SNP site provided by the invention is used for calculating a genome estimation breeding value of a candidate group, and individuals with high breeding value are relatively high in disease resistance and can be used for breeding disease-resistant improved varieties of grass carp.

This invention discloses a multi-unit composite stress tiered breeding device and method for juvenile large yellow croaker, belonging to the field of aquaculture breeding technology. The device uses a central control unit as its sole core, forming a fully integrated unidirectional closed-loop drive system. Four independent breeding units are connected through a transparent channel with a centrally located aeration head, forming a physical flow-limiting isolation structure. Each unit independently regulates water temperature, salinity, and dissolved oxygen, creating a multi-factor composite stress gradient. The breeding method employs a three-factor linear equal-gradient synergistic progressive setting, utilizing the juvenile fish's autonomous adaptation and avoidance instincts to achieve cross-unit migration and natural selection. Combined with contour recognition and dynamic tracking algorithms, it monitors the fish population status and mortality rate in real time, and identifies superior offspring with comprehensive stress resistance through secondary verification under extreme stress. This invention offers high screening accuracy and automation, increasing the survival rate of superior individuals by over 40%, reducing labor costs by over 60%, and allowing for flexible adjustment of device parameters. It can be extended to the stress resistance breeding of other marine economic fish species.

The present invention discloses a net cage device for aquaculture of sand snakeheads, comprising a net cage, a cone, a sinker, and a rope. The net cage is formed by sewing a bottom mesh sheet and a peripheral mesh sheet, the mesh sheet being provided with a plurality of circular holes, the edges of the circular holes being sewn to the fan-shaped mesh sheet to form an embedded cone with a closed top, the sinker being sewn to the periphery of the bottom of the net cage so that the net cage extends into the water body; the rope being passed through the periphery of the top of the net cage, and the tail of the rope being used to secure the net cage. The net cage device of the present invention has a strong and simple structure, a long service life, is suitable for a variety of specifications, has a wide range of uses, is convenient for daily management during aquaculture, is convenient for anytime and quantitative fishing, reduces fishing intensity and fish fishing stress, and improves fishing efficiency; at the same time, it meets the needs of sand snakehead juveniles and adult fish for a hidden habitat, reduces spatial competition of sand snakeheads, increases the level of sand snakeheads' feeding on bait organisms, reduces energy consumption, and promotes growth.

The application belongs to the field of fish development, and particularly relates to a molecular marker for identifying Nibea albiflora sperm-induced Pseudosciaena heteroclita gynogenesis offspring and hybrid offspring, a primer set thereof, a kit and application. The primer set for identifying the molecular marker of the Nibea albiflora sperm-induced Pseudosciaena heteroclita gynogenesis offspring and hybrid offspring comprises primers F and R, the nucleotide sequence of the primer F is shown as SEQ ID NO. 1, and the nucleotide sequence of the primer R is shown as SEQ ID NO. 2. Based on genomic data analysis, the application develops the molecular marker F / R which can effectively identify the Pseudosciaena heteroclita gynogenesis offspring and hybrid offspring in the juvenile stage. The method comprises extracting genomic DNA of parents and offspring, PCR amplification and agarose gel electrophoresis detection, and finally distinguishing the gynogenesis individuals and hybrid individuals by whether the Nibea albiflora parent marker is contained in the electrophoresis band.

The application relates to the technical field of biological medicine, and particularly discloses a fish rhabdovirus recombinant adenovirus vector vaccine and a preparation method and application thereof. The recombinant adenovirus vaccine carrying the M gene of the SCRV virus is prepared by using a replication-defective recombinant adenovirus vector, and the preparation method comprises the following steps: mandarin fish rhabdovirus M gene cloning, construction of a Pshuttle-CMV-ECMV vector with a target gene SCRV-M, obtaining of a SCRV-M recombinant adenovirus plasmid, screening of the SCRV-M recombinant adenovirus, and preparation of the SCRV-M recombinant adenovirus vaccine. The SCRV-M recombinant adenovirus vaccine prepared by the application can be used for immunoprophylaxis of SCRV virus infection in the juvenile fish stage through a soaking mode, the SCRV-M recombinant adenovirus vaccine has passed an animal safety test, and has a wide application prospect in the prevention and control of fish rhabdovirus.

The utility model discloses a novel young fish fry seed gathers and captures device, including the casing, its characterized in that: the casing upper end is equipped with the feeding opening, and the bait filter drum is arranged in the casing, and the buffer board is arranged in the casing, and the inside rotation is connected with the deflector in the casing, and the left and right ends of deflector all are equipped with the connecting shaft, and one end of connecting shaft is equipped with the gear, and the upper end rotation is connected with the threaded rod in the casing, and the outside screw thread connection of threaded rod has the U type rod, and the left and right ends of U type rod all are equipped with the connecting rod, and the lower end of connecting rod is equipped with the rack, and the upper end of casing is equipped with the first limit slip mouth, and the inside sliding connection of first limit slip mouth has the filter baffle. The utility model can gather and catch the young fish fry of the elastic coating fish, not only can save manpower, can improve the gathering and catching effect, and can also reduce the harm to the young fish fry when gathering and catching.

The invention discloses a lake ecology appropriate water level determination method based on juvenile fish migration and adult fish fattening, and relates to the field of water ecology and water conservancy projects. The method comprises the following steps: acquiring lake basic data; establishing a two-dimensional hydrodynamic model, and simulating a hydrodynamic field in key periods of migration of juvenile fishes and fattening of adult fishes of the target fishes; constructing a habitat model, and calculating a habitat suitability index HSI and a weighted available area WUA; constructing a water level-WUA response curve and performing segmentation fitting; identifying a WUA stable high-value platform through a first-order derivative threshold value, and determining a suitable water level interval; and establishing scheduling mapping between the appropriate water level and the upstream discharged flow. According to the method, water level-habitat quantitative association is realized according to the staging habitat requirements of four major Chinese carps in the Yangtze River, an operable scheduling threshold value is output, the problems that a traditional method is not staging, the index is single and the method is disjointed with engineering are solved, and the method is suitable for ecological scheduling and management of riverway-communicated lakes.

Provided are a larval-fish feed with which it is possible to promote growth by improving the survival rate of larval fish, and a method for rearing fish. A larval-fish feed (40) comprises a body portion (10) configured from a fish-derived-component-containing formulation, and a gel-like coating portion (20) covering the body portion (10). This method for rearing fish includes a first step for feeding a biological bait to a larval fish, and a second step for feeding a larval-fish feed (40) to the larval fish, the second step being started after the start of the first step.

The invention discloses a method for improving the survival rate of yellow catfish transportation, comprising the steps of: (1) selecting healthy yellow catfish fry to be put into aquaculture water tank, water filling in the water tank, then adding composite polysaccharide nanoparticles and composite probiotics, and the yellow catfish fry is temporarily kept in the tank for 1 3 days without food; (2) the yellow catfish fry temporarily kept without food by water and step (1) are packed in aquatic product special oxygen bag, immediately oxygenating and sealing and ensuring that oxygen content is 6 7mg / L, and the bag is put into the carton of inner foam for transportation; the composite polysaccharide nanoparticles include chitosan, astragalus polysaccharide, oligoxylose, roxburghii polysaccharide and wolfberry polysaccharide and are made. The composite polysaccharide nanoparticles of the present invention are conducive to the absorption of polysaccharide and act on tissue, increase water solubility, dispersibility, and the absorption of fish body thereto, effectively avoid the side effect of polysaccharide accumulation and pollute water body, reduce the time and economic cost added to the feed, thus realize the relief of the fish stress under transportation stress.

This invention relates to the field of aquatic compound feed technology, specifically to a special feed for mullet, silver carp, and golden carp cultured in saline-alkali land in Northwest China. The feed is characterized by being composed of the following raw materials by weight percentage: 10%–14% alfalfa meal, 16%–22% soybean meal, 16%–22% corn meal, 5%–7% molasses, 1%–3% yeast powder, 2%–5% lactic acid bacteria preparation, 2%–5% premixed feed for aquatic life in saline-alkali land in Northwest China, 1%–4% fish oil, and 1%–5% vegetable oil. This invention solves the problems of low survival rate, high feed conversion ratio, easy antagonistic inactivation of probiotics, fish oil oxidation, poor water resistance of pellets, and insufficient regional adaptability of traditional feeds. Compared with commercially available ordinary marine fish feeds, the survival rate of juvenile fish is increased by 15% to 30%, the feed conversion ratio is reduced by 10% to 20%, the Vibrio inhibition rate is ≥80%, the power consumption per ton of feed is reduced by 25% to 35%, and the raw material cost is reduced by 30% to 45%. It is suitable for large-scale aquaculture in saline-alkali land in Northwest China and has important value for improving the quality and efficiency of fisheries, ecological restoration, and rural revitalization.

The application discloses a method for rapidly culturing trichodinid, and belongs to the field of aquatic biological technology. Trichodinid widely parasitizes on the body surface of many marine and freshwater economic fishes, is one of main parasitic pathogenic agents of the cultured fishes, is easily transmitted by indirect contact between hosts, causes large-scale death of fry, and brings huge economic losses to fish culture industry. However, trichodinid cannot be cultured in vitro, and its natural infection has seasonal regularity, so that the acquisition of experimental materials of trichodinid has great limitations, the research on trichodinid has been less, and the development of trichodinid disease prevention and treatment drugs and vaccines is hindered. The application achieves the effect that the trichodinid parasitizing on the body surface of the young fish with a certain initial trichodinid infection amount is massively reproduced in a short time by injecting an immunosuppressive agent into the young fish. The method is simple in operation, can significantly shorten the experimental period of trichodinid related research, and is beneficial to the development of drugs and vaccines for preventing and treating trichodinid disease.

The subject of the application is the use of allyl ester of 7-hydroxy-2-oxo-2H-chromene-3-carboxylic acid, represented by general formula 1, for staining bone tissue and mineral structures of larvae of fish of the Danio rerio species in order to assess the development of the skeletal system in biomedical research.

This invention discloses a specific DNA fragment, primers, and applications for sex identification of the longfin sclerotium. PCR amplification and agarose gel electrophoresis were performed using PCR primers. The results showed that individuals with a specific 271bp band were male, while those without a band were female. This invention discloses a molecular marker, primers, and identification method for sexing the longfin sclerotium. Sexing can be determined by taking fin rays without killing the fish; it can also identify the sex of juvenile fish whose sex cannot be determined by appearance. It has advantages such as accuracy, simplicity, speed, and minimal harm to the fish, providing important assistance for the conservation of wild longfin sclerotium resources and the development of the aquaculture industry.

The invention relates to the technical field of biological experiments, in particular to a zebra fish juvenile fish fixing device and a fixing method thereof.The zebra fish juvenile fish fixing device comprises an observation plate, a fixing device and a fixing device, the placing seat is arranged in the groove, the bottom of the placing seat abuts against the bottom wall in the groove, a mounting groove is formed in the top of the placing seat, and the interior of the mounting groove is used for placing juvenile zebrafish. According to the zebra fish juvenile fish fixing device, through collaborative design of the magnetic type fixing base, clamping of the adjustable threaded rod and assisting of the controllable adhesive, non-damage rapid fixing of zebra fish juvenile fish is achieved, operation convenience, physiological protectiveness and experimental adaptability are achieved, and the stability and reliability of juvenile fish fixing are remarkably improved.

The application discloses a method for regulating body color of ornamental fish and belongs to the technical field of aquaculture. The application finds that, by using thyroid hormone to soak ornamental fish in the fry period and the juvenile fish period, excessive thyroid hormone can significantly reduce the number of red pigment cells and the size of pigment granules of ornamental fish in different periods, and reduce the content of carotenoids; when the synthesis of thyroid hormone is inhibited, the expression of melanin cells and related synthesis pathway genes is promoted, and the carotenoid level is increased. The application first clearly defines the inhibitory effect of thyroid hormone on the development of red pigment cells and the accumulation of carotenoids of gourami, fills the knowledge gap in the field, and provides important guiding information for future regulation of body color and genetic improvement of ornamental fish and other aquatic animals.

The invention relates to the field of submersible type intelligent fish nests, in particular to a submersible type intelligent fish nest which comprises an upper-layer frame body, a lower-layer frame body, a middle frame body, a fixing frame, a recognition assembly, a connecting structure and a folding mechanism, the middle frame body comprises multiple sets of folding pipes capable of being folded, and a placing net is arranged between the upper-layer frame body and the lower-layer frame body; the folding mechanism comprises an electric cylinder and a connecting rope, and the connecting rope is connected with the multiple supporting pipes of the upper-layer frame body. Through the arrangement of the folding mechanism, the whole fish nest is shrunk when big fishes approach, roes and newly hatched juvenile fishes are concentrated in the center of the placing net, meanwhile, gaps of the fish nest are shrunk, the big fishes are not prone to entering the gaps, and the roes and the juvenile fishes are not prone to being caught and eaten. Meanwhile, the contraction action of the whole fish nest also has a frightening effect on big fishes. Therefore, the probability that the fish eggs in the fish nest and newly hatched juvenile fishes are caught by big fishes can be reduced, and the maturity rate of the juvenile fishes and the fish eggs is improved.

The invention discloses a cobitidae fish migration channel simulating natural hydraulic conditions and a design method, and relates to the technical field of fish migration channels, the cobitidae fish migration channel simulating the natural hydraulic conditions comprises a river bank, a water channel is arranged on the river bank, and a dam is transversely arranged in the middle of the water channel. A traditional fishway is mainly designed for economic fishes with high swimming capacity, and a substantive ecological barrier is formed for benthic species with weak swimming capacity such as cobidae fishes. According to the invention, through intelligent linkage of the liftable rockfill dam and the self-adaptive inclined plate, a continuous adjustable hydraulic condition from an almost barrier-free gentle slope to a controllable challenging step is created. Especially in a dry season / juvenile fish period mode, the fishway is converted into a continuous smooth slope, so that juvenile fishes and weak individuals can easily move upwards in a creeping mode close to a natural state, and the migration blocking problem is fundamentally solved.

The present invention discloses a system and method for monitoring the dynamics of yellow catfish populations in yellow catfish (Psoralea vachelli), which specifically relate to the technical field of fishery resource monitoring. The system and method are used to solve the problems of inaccurate juvenile survival rate assessment and poor monitoring timeliness in benthic hidden environments in the prior art. The system deploys a benthic penetrating sonar array to synchronously collect water body reflection signals and benthic environment samples, and uses environmental DNA enrichment technology to extract juvenile-specific gene fragments to generate concentration distribution data. The system uses an acoustic reflection signal and body length correlation model to screen juvenile distribution data, and locates activity hotspots through spatiotemporal overlap analysis. A directional acoustic wave excitation device is deployed to obtain escape trajectory data, and the survival rate is calculated using a density attenuation model. Finally, multi-source data and terrain features are integrated to generate real-time population dynamics monitoring results, thereby achieving high-precision, non-invasive monitoring of juvenile fish populations in hidden environments.

The application provides an artificial breeding method of Onychostoma wujiangense, and belongs to the technical field of aquatic animal breeding. The artificial breeding method of Onychostoma wujiangense comprises the steps of parent fish classification, parent fish cultivation, artificial parturition induction, natural insemination, artificial insemination, fertilized egg hatching, larva cultivation and juvenile fish cultivation. The parturition induction agent is reasonably matched, the parturition induction injection time is accurate, the parturition induction rate, the fertilization rate and the hatching rate are improved, and the parent fish damage is small. The application also clearly defines the feeding methods at different stages of seed cultivation, improves the survival rate of Onychostoma wujiangense seed cultivation stage, and lays a technical support for the artificial breeding of the endangered species Onychostoma wujiangense.

The invention provides an enterococcus faecalis FS and application thereof. The enterococcus faecalis FS is preserved in the Guangdong Microbial Culture Collection Center on May 12, 2025, and the preservation number of the enterococcus faecalis FS is GDMCC (China General Microbiological Culture Collection Center) 66318. The novel enterococcus faecalis FS is separated from the intestinal tract of healthy adult largemouth bass, has good acid and alkali resistance, cholate resistance, acid production and antibacterial capacity, is good in biological safety and has no toxic or side effect on fishes. When the enterococcus faecalis FS provided by the invention is added into juvenile fish functional feed as a core component, not only can the growth performance and disease resistance of largemouth bass be improved, but also the use of antibiotics can be reduced, the environmental pollution can be reduced, the aquaculture industry can be promoted to develop towards a high-efficiency, environment-friendly and sustainable direction, and the enterococcus faecalis FS has important application value and market prospect.

The invention discloses a fugu rubripes primary hepatocyte efficient separation and culture method suitable for different growth stages, and belongs to the technical field of hepatocyte culture. Through the optimized pre-cleaning and enzyme digestion steps, the difficulty in hepatocyte separation caused by high-fat liver is effectively overcome, stable acquisition of the fugu rubripes primary hepatocytes at different growth stages is realized, dependence on juvenile fish which is not subjected to feed conversion is not needed, and the applicability of experimental materials is greatly widened. According to the method, the cell yield is high, the growth state is stable, and a reliable in-vitro model is provided for fugu rubripes lipid metabolism research and nutritional immune regulation.

The present disclosure provides a juvenile fish limb identification method based on a multi-scale cascaded perceptual convolutional neural network. The method includes the following steps: acquiring a video sequence of a juvenile fish, dividing a fish body into five non-overlapping parts, performing semantic annotation on the five non-overlapping parts, and taking the five non-overlapping parts as an input of the multi-scale cascaded perceptual convolutional neural network; and using a convolutional layer as a feature extractor, performing feature extraction on an input image containing the annotation of each limb, inputting extracted features into an Attention-region proposal network (RPN) structure, determining a category of each pixel, and generating a limb mask of each limb category using a multi-scale cascade method. According to the method, the limbs of the juvenile fish can be efficiently and accurately identified, and technical support is provided for posture quantification of the juvenile fish.

An automatic fish sorting device suitable for zebra fish juvenile fish individual detection comprises a conical fish inlet pipe, a power pump, a water inlet pipeline, a water storage device and a fish sorting device. According to the automatic fish sorting device, by means of the fish sorting device and in cooperation with water flow driving of the power pump, ordered and stable situation output of zebra fish individuals is achieved. The device greatly simplifies the operation process of the zebra fish experiment, remarkably improves the experiment quality, and becomes indispensable key equipment in modern laboratories. In view of the wide application prospect, the device is expected to create more convenient and efficient experiment conditions for scientific research personnel, and the development of the scientific research cause is powerfully promoted.