147 results about "Fish species" patented technology

The invention discloses a device and a method for intelligently investigating types and quantity of fishes. The device comprises a self-adaptive sonar detection module, a three-dimensional image acquisition module, an image preprocessing module, a fish detection module, a main body segmentation module and an identification and classification module. The sonar module is integrated with a three-frequency-band transducer, can dynamically switch frequency according to fish school depth, and realizes target tracking counting and quantity estimation in combination with an algorithm; the image acquisition module constructs a fish school three-dimensional image model by combining a depth camera with a light attenuation compensation algorithm; the preprocessing module fuses acoustic and optical features and expands a data set; the detection and segmentation module is used for accurately positioning fishes and removing impurities; the identification and classification module realizes type identification based on transfer learning and supports incremental learning of new fingerlings. According to the method, through cooperation of multiple modules, the problems of insufficient detection precision, poor image quality and the like in traditional investigation are solved, efficient and accurate investigation of fish species and quantity is realized, and technical support is provided for fishery resource management and ecological protection.

The invention provides a method for correcting and counting the natural breeding scale of fishes laying drifting eggs. The method comprises the following steps: collecting basic data of a target river section; collecting roes and fries of fishes laying drifting roes day by day at the lower boundary of the target river section, obtaining the number of early resources every day, sampling time, and collecting flow velocity and flow data near a net opening; through indoor culture and biological identification, the egg and fry development time of the fishes laying the drifting eggs is determined; based on the collected basic data, a target river section non-constant flow mathematical model is constructed, and model parameters are verified; according to the non-constant flow mathematical model, determining the specific section position of each fish laying the drifting eggs during egg laying; and calculating the flow corresponding to the section where the fishes laying the drifting eggs lay eggs and the flow velocity of the fishes drifting to the monitoring section from the downstream, and counting and calculating the overall spawning scale condition of the target river section during the monitoring period by adopting a spawning scale statistical method of the fishes laying the drifting eggs. And the natural breeding scale condition of the fishes in the target river section can be reflected more truly.

The invention discloses a fishway hydraulic power and fishway structure design method and related equipment, and the method comprises the steps: obtaining swimming capability parameters of each target fish species in a target water area, the swimming capability parameters comprising an induction flow rate, a critical swimming speed and an outbreak swimming speed; selecting the target fingerling with the minimum critical swimming speed as a limited fingerling; according to the critical swimming speed corresponding to the limited fingerling, calculating a first energy consumption rate of swimming of the limited fingerling at the first hydraulic flow speed; according to the first energy consumption rate, hydraulic function partitions and space sequence layout of the fishway are determined; and determining fishway hydraulic parameters according to the induction flow velocity of each target fingerling and the critical swimming speed and the outbreak swimming speed of the limited fingerling. According to the fishway, inclusive passing of the fishway to multiple species can be achieved, the structural design of the fishway can adapt to the natural behavior rhythm of fishes, the overall energy consumption of dam passing of fish schools is remarkably reduced, then the ecological efficiency of the fishway is improved, and the fishway can be widely applied to the technical field of fishway design.

The invention discloses an X-chromosome specific molecular marker of micropterus salmoides and application of the X-chromosome specific molecular marker. On the basis of a whole genome sequencing technology, the X chromosome specific molecular marker of micropterus salmoides is obtained. Aiming at the molecular marker, the invention also provides a detection primer pair and a detection method of the molecular marker, and by detecting the molecular marker, rapid and accurate screening of YY supermale fish individuals can be realized to obtain a YY supermale fish population. The obtained YY super-male fish group and a proper female fish group are jointly fed and bred, and then the micropterus salmoides all-male fingerling can be obtained. If the YY super-male fish group and the YY pseudo-female fish group are jointly bred and bred, largemouth bass offspring which is all YY super-male fish can be obtained. Compared with a traditional all-male breeding method of the largemouth black bass, the all-male breeding method of the largemouth black bass is beneficial to simplifying all-male breeding steps of the largemouth black bass, shortening breeding time, and beneficial to cultivation of all-male largemouth black bass fingerlings and popularization of single-male breeding of the largemouth black bass.

This invention belongs to the field of molecular genetics and discloses a method and application for controlling fish fertility using in vivo gene editing technology. The applicant, for the first time, cloned a carp-specific U6 promoter and used this promoter to construct the U6 gene. MOVIE gRNA transgenic vectors and water The Cas9 vector allows for the establishment of an in vivo editing system. This strategy enables the heritability of sterility, a reproductive control trait, through hybridization of fertile parents to produce sterile offspring. The operation is highly efficient, simple, and environmentally friendly. Furthermore, since high-copy-rate short, scattered repetitive sequences exist in all fish species, this strategy has broad applicability across species.

To provide a lure for fishing capable of simultaneously aiming at the extension of a long casting distance of the lure for fishing and the control of a sinking speed.SOLUTION: The fishing lure 1 includes a lure having a large specific gravity, which is generally called a hard lure, as a base body (weight) 7, and a bag-shaped structure 8 formed of a soft resin, a soft rubber, or the like and covering the base body. Since the base body (weight) 7 and the structure 8 to be covered are integrated, the air resistance at the time of long distance casting and flying can be reduced, and the effect of extending the long distance casting distance is brought about. The mother body is provided with a mechanism for operating the structure to be covered, and the structure to be covered controls the sinking speed and appeals to the target fish species by the operation of the structure after landing on the water, so that an increase in the fishing result can be expected.SELECTED DRAWING: Figure 1

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 application discloses a kind of fishery propagation control optimization method and system for target water area.The method comprises the following steps: obtaining the fishery ecological change data of target water area, determining suitable propagation fish species and identifying its ecological preference;Collecting historical water layering structure data, analyzing seasonal extreme events using time series decomposition algorithm, and constructing extreme value feature dataset;Based on the dataset, generate water environment stress feature map, and develop propagation control scheme combined with fish ecological preference;Construct a propagation fish monitoring sensor network, monitor the propagation effect of fish in real time, and optimize network control according to monitoring quality information.The method can realize fine management and dynamic optimization of fish propagation process, improve the effect of fish propagation and ecological environment adaptability, and provide technical support for sustainable utilization of fishery resources.

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a fish inlet structure of a fish passing facility and a dynamic fish inlet method, and the fish inlet structure comprises an outer plate, a gate and a first opening and closing leaf plate. A fish inlet channel is formed between the outer plates and comprises a front section, a middle section and a rear section, the gate is arranged at the downstream end of the fish inlet channel, namely the gate is located at the end of the front section of the fish inlet channel, an opening and closing window penetrating through the inner sides and the outer sides of the outer plates is formed in the front section of the outer plates, and the first opening and closing leaf plate is arranged at the opening and closing window. The first opening and closing leaf plate can adjust the opening and closing degree of the opening and closing window through rotation. According to the fish inlet, through the combination of the first opening and closing leaf plate, the second opening and closing leaf plate and water flow dynamics, upgrading of the fish inlet from static fixation to dynamic adaptation is achieved, the problem that a traditional fish inlet is insufficient in adaptability to water flow changes and fish variety differences is effectively solved, and the fish inlet efficiency of the fish inlet of the fish passing facility is effectively improved.

The application belongs to the technical field of water conservancy projects, and discloses a fish collecting device based on a lifting mechanism and a fish collecting method, wherein the fish collecting device based on the lifting mechanism comprises a fish collecting box body, a pair of tapered entrances are symmetrically arranged at the center of the two sides of the fish collecting box body, a pair of mounting plates are fixedly connected to the top edges of the fish collecting box body, and a protective shell is fixedly connected to the middle part of the fish collecting box body. Through cooperation of structures such as the arc-shaped bevel pipe, the inner bushing and the flexible spiral pad, a laminar flow type circular flow is generated in the fish collecting box body by the water pump, which is similar to a small vortex. The vortex drives the surrounding water to flow to the tapered entrance for fish entering, and forms a significant fish-attracting water flow. For fish species that like water flow, the water flow is used to drive fish into the fish collecting box body by using the rheotaxis of fish. The system can adjust the water pump power according to the body type, species and hydrological conditions of the target fish on the same day, so as to control the flow rate of the fish-attracting water flow and achieve the best effect.

A fishing rig is provided that combines differing combinations of assemblies to form a multipurpose fishing rig capable of fishing differing environments, species and differing fishing methods. The assemblies of the fishing rig include a main leader assembly that utilizes an inline float with a radial bore to attach to a side leader assembly. The side leader assembly includes at least a spacer bead and a cinch bead utilized for adjustable tensioning when attached to the main leader. A hook or lure assembly is provided and attached to the side leader assembly for either live bait, or lure fishing.

The invention relates to the technical field of fish monitoring, in particular to a rare fish nondestructive monitoring method and system based on water eDNA sample recognition. A hotspot model is constructed through historical eDNA sampling distribution, sampling hotspot transfer prediction is achieved, and the optimal sampling point position is determined; high-throughput sequencing and a base sequence recognition decision tree are combined, the sequence rare degree is judged, and valuable and rare fishes are retrieved; further coupling the water flow dynamic model and the eDNA migration state space model, and tracing the potential migration area or inhabitation area of the rare fish; and a dynamic population community graph is constructed based on the time sequence community change, and the seasonal scale trend is analyzed. According to the method, accurate nondestructive monitoring of seasonal distribution rules and community structure trends of the rare fishes is realized on the basis of efficient collection and accurate identification of the eDNA of the water body, and a reliable scientific basis is provided for resource protection of the rare fishes in different water areas.

The invention relates to the technical field of fry and fingerling breeding, in particular to an anti-wind-wave marine ranch breeding device which comprises a base plate and a bottom plate, an anti-falling enclosure assembly is arranged above the base plate, a plurality of connecting columns are fixed to the bottom face of the base plate, a plurality of limiting frames are arranged below the base plate, the connecting columns penetrate through the limiting frames, and the connecting columns penetrate through the limiting frames. The bottom ends of the connecting columns are fixed to the top face of the bottom plate, a first netting is fixed between the base plate and the bottom plate, and a second netting is fixed between the bottom plate of the first netting and the base plate. The device has the advantages that the limiting frame is hollow and provided with the vent holes, bubbles are released to water through the air pump and the air delivery pipe, the dissolved oxygen concentration is increased, and healthy growth of fishes is promoted. A reserved cavity and a liquid dispersing hole are formed in the driving screw rod, and an antimicrobial agent or a nutritional agent is injected through pressurization of a liquid injection pipe, so that uniform spraying is realized, and manual operation errors are reduced.

The present invention relates to transgenic ornamental fish, as well as methods of making such fish by germ cell transplantation techniques. Also disclosed are methods of establishing a population of such transgenic fish and methods of providing them to the ornamental fish industry for the purpose of marketing.

The invention relates to the technical field of water conservancy projects, and discloses a construction method of a river fish habitat model, comprising the following steps: S1, preparing files of river terrain, upstream incoming flow and downstream water level; s2, determining the flow velocity and the water depth suitability index of the target fish; s3, constructing a hydrodynamic model; s4, outputting the water depth, the flow velocity and the coordinates of each unit according to a grid unit dry-wet judgment criterion; s5, based on the suitability index, the water depth and the flow velocity, calculating the weighted available area of the habitat and the distribution of the comprehensive suitability index of the water depth and the flow velocity; s6, performing habitat quality grading on the grid units; s7, calculating a Simpson index L according to the water depth and the flow velocity of each unit, and evaluating the diversity of the waterpower habitat of the river channel; and S8, outputting various distribution diagrams and a fish habitat calculation table. The method can accurately quantify the influence of factors such as water depth and flow velocity on the fish habitat, synchronously evaluate the habitat quality and habitat diversity, and provide an effective method for dominant fish habitat simulation and protection.

The invention relates to the technical field of fingerling breeding, and provides an energy-saving environment-friendly aquaculture fish, shrimp and crab multifunctional feed feeder which comprises a supporting pipe and further comprises a supporting mechanism, a throwing mechanism, a feeding mechanism and a blowing mechanism, the supporting mechanism is installed on the supporting pipe, the throwing mechanism is installed on the supporting mechanism and used for throwing granules, and the blowing mechanism is installed on the supporting mechanism and used for blowing the granules. The feeding mechanism is connected with the supporting mechanism, the feeding mechanism is located above the material throwing mechanism, and the material blowing mechanism is located between the feeding mechanism and the material throwing mechanism. Through the technical scheme, the problems that most of feed feeders in the prior art only feed granules or powder materials, and when different fish varieties are changed and different foodstuffs need to be thrown, the foodstuffs cannot be fed into the feed feeders are solved; the problems that in the prior art, feeding equipment needs to be replaced, the cost for replacing fingerlings is increased, the feeding mode cannot be adapted according to the specification of foodstuff, and adaptability is low are solved.

This invention discloses a method and system for optimizing the orientation angle of the inlet and outlet of a pumped-storage power station reservoir. The method includes: first, conducting an upstream and downstream aquatic ecological survey of the intake to identify key ecological parameters of upstream migratory fish species; second, constructing a three-dimensional hydrodynamic model to simulate the flow field characteristics under the original design scheme and quantifying the baseline value of the fish egg entrainment effect; subsequently, designing multiple comparative schemes for downstream deflection of the inlet and outlet, simulating and quantifying the ecological protection benefits of each scheme; furthermore, conducting multi-dimensional quantitative analysis of the engineering safety, cost, and power generation benefits of each scheme; and finally, constructing a comprehensive evaluation system for both engineering and ecological benefits, and determining the optimal orientation scheme using Pareto optimality analysis. This invention achieves quantitative and systematic optimization of the inlet and outlet orientation, effectively mitigating the entrainment effect of pumping conditions on the early resources of migratory fish species while ensuring engineering safety and economic benefits. It can be widely applied to the design of pumped-storage power station projects relying on existing reservoirs.

The application discloses a fish species identification method and system based on contour key points and an attention mechanism, and relates to the field of fish species identification.The method comprises the following steps: acquiring a target image of a target fish body; inputting the target image into a precise contour key point model to obtain contour points and contour key points of the target image; using a sparse sampling method to calculate distance feature data of the target fish body according to the contour points of the target image and to calculate angle feature data of the target fish body according to the contour key points of the target image; fusing the distance feature data of the target fish body and the angle feature data of the target fish body to obtain target fusion features; and inputting the target fusion features into a fish species identification model to obtain the species of the target fish body.The application can improve the accuracy of fish species identification.

The application discloses a reconstruction method of a vertical slot fishway into a movable baffle fishway, which comprises the following steps: a) extending the fish inlet downstream; b) reconstructing the fish outlet into a transversely opening gate; and c) adding an automatically controlled energy dissipation baffle between pool rooms; when the defects of the original fishway are caused by the change of the upstream and downstream water levels, the steps of a) and b) need to be performed; when the defects of the original fishway are caused by the emergence of new low-swimming-speed fish species, the step of c) is performed; and when the original fishway has both of the above problems, the steps of a), b) and c) are simultaneously performed. The application has the advantages that the reconstruction method of the vertical slot fishway is provided; the reconstruction design method and the new body type of the fishway outlet; the reconstruction method of the fishway inlet; and the above method and body type have important effects on the improvement of the fish passing efficiency.

The invention belongs to the field of fish species and sex identification in the field of aquaculture, and discloses a specific DNA fragment combination for distinguishing female acipenser ussuriensis and female Huso dauricus and application. According to the invention, a segment of specific DNA fragment for distinguishing genders of female acipenser ussuriensis and female Huso dauricus is successfully screened through conventional PCR amplification, sequencing and sequence comparative analysis, primers are designed to accurately and rapidly identify genders of female acipenser ussuriensis and female Huso dauricus, and genders and female parent sources of female acipenser ussuriensis and female Huso dauricus individuals and hybrid generations thereof are distinguished. The invention also discloses a primer sequence, a PCR reaction system and conditions. The identification method disclosed by the invention is simple, rapid and accurate to operate, has extremely small harm to fish bodies, solves the problems of identifying the genders of the Russian sturgeon and the Huso dauricus, the female parent of the hybrid sturgeon and the caviar source, and is beneficial to the development of the sturgeon caviar industry.

The invention discloses a method for constructing a fish suitable flow field by using bluff body streaming. The method comprises the following steps: 1) obtaining the swimming ability of a target fingerling and the sensitive degree and preference value range of the target fingerling to each hydraulic parameter; 2) simulating a flow process of a flow field by utilizing flow field simulation software, and acquiring change information of hydraulic parameters of each position of the flow field along with time; 3) calculating the preference probability of the fish to the hydraulic condition of each position of the flow field at each moment; 4) according to the preference probability of the fish at each moment to the hydraulic condition of each position of the flow field, determining the area position which is not suitable for fish swimming in the flow field; (5) simulating bluff body streaming flow fields with different sizes and different positions by utilizing flow field simulation; 6, the fish swimming preference probability of the new flow field with the bluff body under the hydraulic conditions at different positions at all moments is calculated, and a final arrangement plant.The fish swimming regional position is assessed in combination with the preference probability and the passing rate, the hydraulic adaptability of the flow field is quantified, the actual fish swimming effect is verified, and the result is accurate and reliable.

The embodiment of the present disclosure provides a device and method for fish biological intelligent recognition tracking and state judgment, which is used for collecting and recognizing fish group information of a water area to be measured, tracking and recognizing a platform, and a water area processing assembly, a bait throwing assembly and an identification assembly arranged on the tracking and recognizing platform respectively; the tracking and recognizing platform is arranged on the bank of the water area to be measured; the bait throwing assembly is used for throwing bait to the water area to be measured to attract fish groups; the water area processing assembly is arranged in the water area to be measured to disturb the water flow of the water area; and the identification assembly is used for collecting fish group videos of the water area to be measured and identifying the species and growth state information of each fish in the fish group videos. The device and method of the present application obtain a large amount of original data through long-time identification tracking, and efficiently obtain the fish species and fish state information in the water area to be measured based on the identification assembly.

The present invention relates to "A process for the production of whitefish from Pátzcuaro (Chirostoma estor) and balanced diets for its growth and fattening." These diets have specific characteristics for this species, with a content of easily digestible protein ingredients that efficiently contribute to larval survival and the size and weight of the juveniles fed in aquaculture farms with the appropriate diet for each stage. These diets can enter the national and international markets due to their unique characteristics and the results obtained with stomachless fish. Additionally, these feeds can be used for the production of species at a lower level of the food chain, which do not require the use of fishmeal and fish oil, making the aquaculture of these species a more sustainable activity.These diets are the first developed specifically for the successful growth and fattening of the species C. estor, "Pátzcuaro whitefish", having the potential to impact its conservation and marketing in the region of geographic distribution.

The invention discloses an intelligent intermittent fishing operation management method and system based on lamplight purse seine trapping. A fish behavior spatio-temporal evolution graph is constructed by acquiring fish resource survey data of a fishing destination of a target fishing boat and fish dynamic response data after arrangement of a lamplight purse seine, future gathering tropism change of a fish school is predicted, and the actual trapping abundance and the expected trapping abundance of the lamplight purse seine are determined according to the future gathering tropism change. When the actual trapping abundance is lower than the expected trapping abundance, in combination with water body environment data and fingerling space-time distribution sequence data, identifying multi-source environment interference factors such as natural enemy interference factors and water body environment interference factors, monitoring each interference factor in real time, evaluating interference intensity change, and constructing an interference intensity change curve; and generating an intermittent fishing operation strategy of the target fishing boat. According to the invention, intelligent regulation and control of fishing operation can be realized, the trapping efficiency is improved, invalid fishing is reduced, and the application value is good.

The present disclosure relates to transgenic ornamental Angelfish, as well as methods of making such fish by germ cell transplantation techniques. Also disclosed are methods of establishing a population of such transgenic Angelfish and methods of providing them to the ornamental fish industry for the purpose of marketing.

The invention discloses a technology for salinizing slimming fish by using mountain spring water, and relates to the technical field of fish fries, and the technology comprises the following steps: step 1, culturing fish fries, step 2, conditioning and treating wounds by using Chinese herbal medicines, and step 3, salinizing and slimming. In the step 1, various types of freshwater fishes can be bred, fish fries are put into a common fish pond for breeding, feeding is performed every day, and adult fishes are bred, and in the step 2, the adult fishes are put into a new fish pond, and medicaments are added for conditioning and preventing saprolegniasis. According to the step 3, sea salt of 5-15 DEG C is added into water according to different fish fingerlings, a circle of sea salt is evenly scattered on the periphery of the fish pond at the beginning, the sea salt is dissolved and kept for one week, water is changed after one week, the sea salt is added again, the content of the sea salt is increased by one degree at the moment, circulation is conducted in this way, one part of sea salt is added every week, the salt tolerance of the freshwater fish is increased, and the freshwater fish can appear on the market after 30-60 days. According to the present invention, the meat quality of the fish can be well changed, the fish has no mud taste and no fishy smell, the meat quality is firm, fresh and sweet, the parasites in the fish body can be completely killed, and the harmful bacteria can be reduced to the minimum.

The invention discloses a rice-crab symbiotic intelligent bait casting system and method based on water quality online monitoring, particularly relates to the technical field of fry and fingerling breeding, and aims to solve the problems that in the prior art, due to the fact that fixed point static water quality monitoring is depended on, dissolved oxygen space-time heterogeneity distribution in a rice-crab symbiotic system cannot be effectively adapted; the feeding decision is disjointed with the actual living environment and the feeding demand of the fish fries and the crab species; the method comprises the following steps: acquiring dissolved oxygen concentration monitoring data of a culture water body and growth state data of rice plants, judging spatial-temporal heterogeneity of dissolved oxygen based on dissolved oxygen data, and when heterogeneity exists, analyzing a plant shading mode and identifying a dynamic hypoxia risk area in combination with a fry gathering behavior. Meanwhile, a bottom-layer hypoxia risk area is evaluated based on benthic crab activity intensity distribution and sediment thickness, then the environment suitability of a candidate feeding area is evaluated by combining real-time dissolved oxygen data, and finally, the feeding position and the feeding amount are dynamically adjusted according to the suitability result.

The invention relates to a fish species and cooking time classification and feature marker identification method and system based on an in-situ GC-IMS image. The method comprises the following steps: collecting two-dimensional spectrograms of volatile compounds of different fish meat at different cooking times by using gas chromatography-ion mobility spectrometry equipment, and dividing the two-dimensional spectrograms into a fish meat category data set and a cooking time data set after preprocessing; training based on the fish meat category data set to obtain a fish species classification prediction model; training by using a ResNet50 model based on the cooking time data set to obtain a fish cooking time classification prediction model; and positioning a key region of model decision by using a gradient weighted classification activation map, carrying out qualitative analysis on a compound corresponding to the key region, and determining a characteristic difference compound as a marker. The two classification prediction models can realize high-precision classification of fish types and cooking time; on the basis of the two trained models, the characteristic difference compounds can be quickly positioned and identified by using a gradient weighted classification activation map.

The invention provides a fish counting method in an industrial aquaculture scene. The method comprises the following steps: carrying out conversion processing on input data; according to the diameter of the factory culture pond, sound ray data corresponding to the fixed pond wall needing to be removed are calculated; performing distance compensation on the echo sound ray data without the pool wall according to a distance compensation formula; environmental noise is removed according to fish echo characteristics; taking the average value of the current sound ray data as a threshold value, and performing vertex search on the part exceeding the threshold value; according to the average length and width of the fingerlings, the repeatedly counted fingerlings are removed; and according to the scanning range of the upper computer, performing fish quantity evaluation on the data of each frame. According to the invention, the method achieves the precise counting of fishes in a fixed factory scene through the analysis of the factory culture scene, reduces the labor cost, improves the statistical efficiency, and meets the demands of the continuously increasing underwater biomass statistics of the factory culture scene.

The present invention discloses a fishing gear storage box, comprising a storage box body. The storage box body has a single structure or a multi-layer structure formed by a plurality of storage box bodies spliced and combined together. The storage box body comprises a box body and a flip cover rotatably connected to the upper end of the box body. One or a plurality of freely combinable fishing gear racks are detachably installed in the box body. The various fishing gear racks of the present invention can be used in combination, and can be matched into appropriate modular combinations according to fishing environments, fishing habits and selection of fish species.