8682 results about "Fishery" patented technology

The invention discloses an intelligent fishery comprehensive evaluation system based on multi-dimensional indexes, and belongs to the field of intelligent fishery. The intelligent fishery comprehensive evaluation system based on the multi-dimensional indexes comprises a water quality monitoring unit, a prediction and early warning unit, a breeding regulation and control unit, an ecological evaluation unit and a decision output unit. The method solves the problem of hysteresis of the detection result in the prior art, can advance the water quality change trend and the red tide occurrence probability in the future by monitoring the water temperature, the dissolved oxygen, the pH value and other key water quality parameters in real time and by means of the prediction model, provides a key basis for breeding decision making, and improves the breeding quality. Execution equipment is flexibly adjusted according to real-time data and early warning information to improve the breeding environment and improve breeding benefits, meanwhile, multi-source data is integrated to comprehensively evaluate the influence of breeding activities on the ecological environment, ecological balance maintenance is assisted, comprehensive evaluation results are integrated to generate ecological improvement suggestions, resource allocation is optimized, and the economic benefit is improved. And the intelligent and ecological level of fishery is integrally improved.

The invention relates to the technical field of fish habitat treatment, in particular to a river fish habitat restoration method based on stair dam dismantling, which comprises the following steps: acquiring stair dam parameters, hydrological data and fish habitat demand data of a target river; constructing a habitat suitability curve, a habitat suitability index and an effective habitat area model of the fish habitat before dam dismantling; designing a plurality of groups of stair dam dismantling schemes, and simulating hydrological condition changes after dam dismantling in combination with a hydrodynamic model; according to the method, habitat suitability curves, a weighted available area method and river connectivity indexes under different dam dismantling schemes are calculated, a multi-objective optimization model is established to screen an optimal scheme, ecological benefits and engineering cost are comprehensively considered, the optimal dam dismantling scheme can be scientifically selected, a dam body with the maximum contribution to improvement of the ecological benefits is preferentially dismantled, and the dam dismantling efficiency is improved. And meanwhile, part of the dam foundation is reserved to reduce the influence of sediment discharge on the downstream, so that the engineering cost is reduced to the maximum extent while the ecological restoration target is achieved.

The invention relates to the technical field of mountainous river fish habitat habitat restoration, and relates to a mountainous river fish habitat restoration method based on numerical simulation optimization, comprising: acquiring habitat data of a mountainous river fish habitat, and performing preliminary ecological restoration measures on the mountainous river fish habitat; constructing a numerical simulation model to predict the erosion and deposition evolution result of the fish habitat in the mountain river after the preliminary ecological restoration in a set period, and identifying an area of which the erosion and deposition evolution degree meets a preset threshold value in the set period; and carrying out riverbed substrate transformation on the identified area based on the target fish, evaluating the habitat improvement effect under the combined action of the preliminary ecological restoration measure and the riverbed substrate transformation through a habitat suitability model, and completing the restoration of the fish habitat in the mountain river based on the evaluation result. According to the method, dredging, spur dike and substrate transformation are combined, and numerical simulation optimization is combined, so that the effectiveness, continuity and scientificity of restoration of the fish habitat in the mountain river are improved.

The invention discloses an offshore red tide multi-parameter real-time monitoring method and monitoring system based on a buoy array. The method comprises the following steps: S1, performing array deployment and topology configuration according to a sea area sensitivity degree, tide characteristics and a historical red tide trajectory; according to the invention, through risk differentiation buoy array deployment and redundancy topology, traditional isolated monitoring limitation is solved, and sea area full coverage and red tide diffusion tracking are realized; physical-chemical-biological multi-source sensing and in-situ detection are combined with data fusion, so that the problem of single parameter is solved, and the monitoring accuracy is improved; by means of liftable stratified sampling and in-situ algae species and toxicity analysis, the vertical monitoring blank is filled up, and the complete life cycle process of red tide from occurrence to regression is completely captured; through linkage of edge-cloud multi-model early warning and field equipment, a'monitoring-early warning-disposal 'closed loop is formed, and the red tide monitoring real-time performance and the emergency response capability are greatly improved.

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

The invention discloses a key point detection-based fish size estimation system and method in a complex underwater environment. An image acquisition module acquires a calibration plate image and left and right images of a fish; the calibration parameter acquisition module acquires calibration parameters; the distortion correction module performs distortion correction on the left and right images; a depth information calculation module calculates depth information corresponding to the pixel points of the left image; the data set construction module is used for marking a fish body and constructing a fish key point detection data set; the image enhancement module performs image enhancement on the left image; the key point detection model construction module constructs a key point detection model, the model training module trains the key point detection model and identifies a fish target and key points in an image, the key point moving module moves the key points, and the fish size calculation module obtains depth information of the moved key points. And converting the pixel coordinates into world coordinates, and calculating the distance between the key points to obtain the fish size. According to the invention, accurate estimation of the fish size is realized.

A bird feeder includes a feeding component and a first camera, where the feeding component is provided with a feeding zone. The first camera is provided at or beyond an edge of the feeding component and shoots from or beyond the edge of the feeding component towards the feeding zone, and captures first image data. The bird feeder designed in the present application attracts birds to perch and feed via the feeding component, while the first camera positioned at the edge or outside the feeding component captures images or videos of the bird feeding activities to address the difficulty in bird observation and shooting, which enables the recording of detailed feeding activities without disturbing the birds which are feeding, thereby providing more stable and comprehensive documentation of bird feeding activities. This facilitates observers' examination of bird feeding processes, demonstrating significant potential for widespread adoption and practical application value.

A fishing rod holder apparatus for securing a fishing rod to a vehicle includes a bracket and a rod receiver. The bracket is shaped to position a handle of the fishing rod above and laterally offset from a hood of the vehicle. The rod receiver is shaped and oriented to hold the handle and orient the fishing rod to extend upwardly and rearwardly from the rod receiver with respect to the vehicle. The bracket is adapted to receive existing fasteners of the vehicle.

In a fishing rod of the present invention, a grip 20 and a reel seat 10 are disposed adjacent to each other on an outer side of a base rod 2 and a ring member 30 is provided between the grip 20 and the reel seat 10. An extension portion 10a that protrudes in an axial direction is provided on an end surface of the reel seat 10, the end surface being adjacent to the grip 20, and a part of the grip 20 overlaps the extension portion 10a at an outer position in a radial direction, and the ring member 30 is interposed and fixed between the reel seat 10 and a part of the grip 20 on the extension portion 10a.

The invention relates to the technical field of computer vision and ecological monitoring, and provides an improved YOLOv8n-based fish school ingestion intensity detection method, device and equipment, and the method comprises the steps: collecting a fish school ingestion image, carrying out the marking and preprocessing of the image, and obtaining a fish school ingestion intensity target detection data set; the fish school feeding intensity target detection data set is divided into a training set, a verification set and a test set according to a set proportion; constructing an improved YOLOv8n-based fish school ingestion intensity target detection network, and importing the training set and the verification set into the improved YOLOv8n-based fish school ingestion intensity target detection network for training to obtain a fish school ingestion intensity target detection model; and performing fish school feeding intensity detection on the test set by using the fish school feeding intensity target detection model. In this way, the images of the water spots and the gathering degree aroused by fish ingestion are recognized, the fish shoal ingestion intensity is accurately recognized, and a basis is provided for feeding of fish culture.

The invention relates to an insect accurate control assembly line type three-dimensional breeding system, which comprises two or more three-dimensional insect breeding mechanisms and a plurality of layered synchronous material distribution and insect throwing devices, and is characterized in that each three-dimensional insect breeding mechanism comprises a breeding frame and a plurality of layers of partitioned continuous breeding mechanisms; the partitioned continuous breeding mechanism comprises a breeding space, the interior of the breeding space is divided into at least two breeding areas, each breeding area is internally provided with an environment control mechanism, and at least one breeding area is internally provided with a first material loosening mechanism; isolation doors are arranged at the two ends of at least one breeding area. The system design of the invention adopts a modularization concept, and each component can be independently replaced or upgraded to adapt to special requirements of different insect varieties; customized cultivation of special insects can be achieved by increasing environment control parameters or adding functional modules, the method covers multiple fields of agriculture, environmental protection, medicine and the like, and the market adaptability is wide.

The utility model discloses a mandarin fish domestication feeding device which comprises a feeding pipeline and a bait temporary storage tank arranged at the upper end of the feeding pipeline, a feeding hopper is arranged at the upper end of the bait temporary storage tank, and the feeding pipeline comprises a vertical pipe with the upper end in butt joint with the bait temporary storage tank and a horizontal discharging pipe in butt joint with the bottom of the vertical pipe. One end of the horizontal discharge pipe is connected with a high-pressure water source or air source; the vertical pipe is of a multi-section telescopic rod structure. A cathode ring piece and an anode ring piece are arranged at the two ends of the vertical pipe, and the cathode ring piece and the anode ring piece are connected with a pulse generator used for outputting pulse signals and a pulse power amplifier used for controlling output voltage through wires. The fish feeding device can achieve feeding at different depths, can feed live fish, dead fish and feed according to different proportions, is simple and convenient to operate, greatly reduces the workload of manual feeding, and can be widely applied to the field of bait feeding.

The invention relates to the technical field of fishery water conservancy and hydropower engineering, and discloses a floating type fish collecting device for water conservancy and hydropower engineering, which comprises a floating platform, a net cage fixedly connected to the bottom of the floating platform, a support frame fixedly connected with the net cage and arranged on the bottom of the floating platform, and a plurality of groups of fish inlets arranged on the net cage; the fish luring mechanism is arranged on the floating platform, a feeding assembly is arranged on the side, close to the net cage, of the fish luring mechanism, a bait bag is connected to the feeding assembly, and the fish luring mechanism drives the bait bag to evenly rotate in the net cage through the feeding assembly; the inner gear ring is arranged on the outer wall of the floating platform, a linkage mechanism connected with the inner gear ring is arranged on the floating platform, and a fish collecting assembly is arranged on the side, close to the net cage, of the inner gear ring; according to the device, the diffusion effect of bait can be improved, waste of the bait is reduced, meanwhile, the trapping range of fishes is expanded, vigilance of the fishes is reduced, and the fish trapping effect of the device is improved.

The invention discloses a bullfrog three-dimensional breeding system and an accurate feeding control method, and the bullfrog three-dimensional breeding system is characterized in that the bullfrog three-dimensional breeding system comprises a modular breeding unit, a gradient water level adjusting device and an interlayer isolation water circulation system, the three-step type three-dimensional framework is divided into a bottom layer tadpole pond, a middle layer froglet net cage and a top layer adult frog breeding bin, a control module is installed on each layer, and anti-escape assemblies are installed on the middle layer froglet net cage and the top layer adult frog breeding bin; the gradient water level adjusting device comprises a bionic step and a water level sensor which are arranged and installed, and the water level gradient adjusting and behavior inducing functions are achieved through engineering design. The interlayer isolation water circulation system comprises a distributed sensor, a UV sterilization and biological membrane filtration dual purification assembly and an adjustable air curtain, the adjustable air curtain forms a directional barrier between different layers of the three-dimensional culture system by dynamically regulating and controlling airflow, and independent environmental parameters of each layer are maintained.

The invention relates to the technical field of black carp culture, and particularly discloses an AI identification system for black carp culture operation, which is used for solving the problem that an existing fishery culture feed distribution device is difficult to carry out accurate suspension and diffusion feeding of feed aiming at middle-layer and bottom-layer gathering behaviors preferred by black carps. The problems of feeding blind areas, low feed utilization rate and frequent manual intervention caused by lack of real-time intelligent identification and closed-loop regulation and control based on fish school distribution, feeding dynamics and environmental disturbance are solved; comprising a fishery breeding feed distribution device, a multi-source data acquisition module, a fish school detection module, a feedback correction module, an AI identification module, a bait field generation module and an execution control module. According to the method, fish school distribution and multi-source time sequence data are deeply fused through cross-modal diagram convolution, an adversarial sound-light-bubble bait field is generated, nonlinear resonance feeding and closed-loop feedback correction are applied, middle-layer suspension uniform distribution of black carps is achieved, and the feed hit rate and utilization rate are efficiently increased.

The invention discloses a method for evaluating the stability of a river ecosystem based on the proportion of generalization species and specialized species. The invention relates to the technical field of river ecosystem stability evaluation, and solves the problem that an existing evaluation method is insufficient in sensitivity to dynamic response of river system stability. The method comprises the following steps: respectively setting sampling points at different river reaches according to actual conditions of a river, collecting benthic microorganism samples on gravels, sand and bottom mud of a target river reach, and measuring environmental indexes of each sampling point; performing high-throughput sequencing on benthic microorganism samples, and identifying generalization species and specialization species by combining the Levins ecological niche width; the method comprises the following steps: identifying and quantifying generalization species and specialized species of benthic microorganisms, determining a threshold relationship between the proportion of the generalization species and the specialized species and the river ecosystem stability, and constructing a river ecosystem stability evaluation system based on the proportion of the generalization species and the specialized species. The stability evaluation of the water ecosystem is realized; and the basin comprehensive management and the ecosystem construction are promoted.

The utility model relates to a pomacea canaliculata spawning frame which comprises a spawning box, a collecting box, spawning columns and spawn taking cylinders. When the ampullaria gigas needs to lay eggs in the ampullaria gigas feeding process, the ampullaria gigas to lay eggs can be placed in the collecting box, the ampullaria gigas climbs on the egg laying column to lay eggs, the ampullaria gigas can be taken out after the ampullaria gigas lays eggs, the collecting box is lifted, the collecting box drives the egg taking cylinder to slide on the egg laying column, and the ampullaria gigas can lay eggs on the egg taking cylinder. The egg taking cylinder is used for scraping the ampullaria gigas eggs on the egg laying column, the ampullaria gigas eggs fall into the collecting box, and the ampullaria gigas eggs are collected, so that the ampullaria gigas eggs can lay eggs better, ampullaria gigas egg masses can be conveniently crushed, the ampullaria gigas eggs can be prevented from being broken massively, and the collecting rate of the ampullaria gigas eggs is increased.

The invention discloses a low-carbon freshwater fish feed added with fermented bamboo powder and application of the low-carbon freshwater fish feed, and belongs to the technical field of aquatic animal feeds. The low-carbon freshwater fish feed capable of reducing the fat rate of fish bodies and / or reducing nitrogen and phosphorus emission is prepared from the fermented bamboo powder, and the content of vitamins, enzymes and growth factors in the feed can be increased by adding the fermented bamboo powder, so that the freshwater fish bodies have good anti-pathogenic activity; the absorption and utilization of the freshwater fish on nutritional ingredients and fiber-rich ingredients in the feed are improved, so that the aim of reducing the emission of nitrogen and phosphorus is fulfilled; meanwhile, the fermented bamboo powder is used for partially replacing soybean meal in the freshwater fish feed, so that the dosage of feed raw materials such as the soybean meal is reduced, the intestinal health of the freshwater fish is improved, the muscle quality of the freshwater fish is improved, the earthy smell in muscles is reduced, the body type of the freshwater fish is also improved, and the fat content in abdominal muscles is reduced.

The animated waterfowl decoy is configured for use with waterfowl. The animated waterfowl decoy forms a lure that visually and audibly attracts waterfowl to the location of the lure. The animated waterfowl decoy incorporates a decoy structure and a control circuit. The control circuit mounts in the decoy structure. The decoy structure generates the sentiments that visually attract the waterfowl to the animated waterfowl decoy. The control circuit generates the sentiments that audibly attract that waterfowl to the animated waterfowl decoy.

The invention relates to the technical field of modern livestock breeding, in particular to application of an MC5R gene in detection of goat growth traits. The invention provides application of an MC5R gene in detection of goat growth traits, a molecular marker related to the goat growth traits exists at the 519bp position of the nucleotide sequence of the MC5R gene, and the polymorphism of the molecular marker is C / T. When the genotype of the polymorphic site contained in the molecular marker is CC, the genotype corresponds to the growth trait relative advantage of the goat to be detected; when the genotype of the polymorphic site contained in the molecular marker is TT, the growth traits of the goat to be detected are relatively inferior. The molecular marker provided by the invention can be applied to identification or prediction of the growth state of the goats, can also be applied to the field of molecular breeding, and judges the genetic potential, seed reservation and seed reproduction of the goats on the basis of analysis of the genotypes of the goats. The invention has great significance for modern livestock breeding of goats.

The invention discloses a bait casting ship path optimization method based on a blue crab growth model. The bait casting ship path optimization method comprises the following steps: step 1, establishing a dynamic blue crab growth model; 2, calculating the feeding amount, wherein the total feeding amount is calculated according to the growth stage of the blue crabs; step 3, carrying out zoning and weight distribution on the breeding area: dividing the area based on the blue crab distribution density, and distributing differentiated feeding weights; 4, planning a path of a bait casting boat: planning an optimal path meeting the bait casting amount of each region by taking constant boat speed as a constraint; according to the method, the error 1t is dynamically corrected in combination with a growth model, environmental factors and the feeding amount; 5%. The bait waste rate is reduced by 40% or above through regional weight distribution, accurate feeding is achieved, residual bait deposition is effectively reduced, and the water quality pollution risk is reduced.

The utility model provides a self-propelled silage reclaimer, which relates to the technical field of reclaimers, and comprises a self-propelled silage reclaimer assembly, the self-propelled silage reclaimer assembly is provided with a dust collection assembly and an adjusting assembly, the self-propelled silage reclaimer assembly comprises a cutting reclaiming knife and a conveying belt, the dust collection assembly comprises a dust collection cover, and the dust collection cover is provided with a dust collection opening. And one end of the dust hood is connected with a conveying hose. The suction fan works to generate suction force, so that the dust hood sucks and removes flying dust generated during cutting and material taking, the sucked and removed dust and the like are conveyed to the collecting box through the conveying hose, the filter element is beneficial to preventing the dust and the like from entering the suction fan, and normal operation of the suction fan is guaranteed; and finally, the movable sealing plate moves in the sliding groove, so that the sucked dust and the like can be cleaned, the dust spreading in the working area is reduced, the dust attached to the surface of the machine is reduced, and an operator can more clearly observe the running state of each part of the machine.

An accessory mount allows accessories to be removably and adjustably mounted to a surface. In an example, the surface may be that of a watercraft, and the accessory may be a fishing rod. The mount may be used with a track fixable to an environmental surface or mounted directed to the environmental surface. When used with a track, a post of the accessory mount releasably engages the track. Slidable engagement of the post allows lateral or horizontal adjustment of the accessory. An accessory engaging member is adjustable in relation to the post about a horizontal axis and a vertical axis, so that angular and azimuthal rotational adjustments of the accessory are enabled. A single lever is used to make angular and rotational adjustments, and to release the accessory engaging member from the post.

The invention discloses a plug flow type mechanical pressurization cyanobacteria control ship, which belongs to the field of ecological environment governance, and mainly comprises a ship body, an algae collection head, a buoyancy cabin, a water collection tank, a pressurization treatment cabin and a pressurization assembly, the lever principle and the electric push rod are used for pressurizing, so that compared with a mode of directly pressurizing a water body by using an air compressor, a water pump and the like, the treatment energy consumption is low, and the pressurizing speed is higher; through the combined design of the dustpan-shaped algae collecting head, the algae inlet position, the pressurization treatment bin layering and the like, the entering and the discharging of high-algae-content water are realized by utilizing the ship advancing power and the water impeller, the operation energy consumption is greatly reduced compared with the water pump sampling, and the device can be suitable for blue-green algae prevention and control in water areas such as lakes, reservoirs, water sources, landscape water bodies and the like.

The utility model belongs to the technical field of fish collecting vehicles, and discloses an automatic weighing fish collecting vehicle. The main technical characteristics are as follows: the fish tank comprises a tank body with a fish inlet at the upper part and an advancing wheel carrier positioned below the tank body, advancing wheels are arranged on the advancing wheel carrier, a middle partition plate is arranged in the tank body, water leakage holes are formed in the middle partition plate, a water collecting tank is arranged on a bottom plate of the tank body, and a water outlet is formed in the bottom plate of the tank body. A bottom plate on the periphery of the water collecting tank inclines towards the water collecting tank, a water pump is arranged in the water collecting tank, a water outlet pipe extending out of the box body is arranged on a water outlet of the water pump, a pressure sensor is arranged on the advancing wheel, and a setting panel electrically connected with the pressure sensor is arranged on the outer side of the box body. The fish collecting weight is more accurate, the fish collecting labor intensity is small, the efficiency is high, and the fish collecting cost is greatly reduced.

The invention relates to the field of tuna culture management, and discloses a management method and system for a tuna intelligent pond culture platform, and the method comprises the following steps: collecting the culture associated data of tunas in combination with underwater monitoring equipment, overwater monitoring equipment and water quality monitoring equipment, and constructing a tuna culture evaluation model; carrying out risk assessment on the tuna culture state of the pond based on the tuna culture assessment model; and performing water quality parameter adjustment on the target pond area with the culture risk, and performing visual data display processing through the tuna intelligent pond culture platform. According to the invention, a data monitoring platform can be provided for intelligent culture of tunas, help can be provided for tuna culture more efficiently, the purpose of system automation is achieved, and meanwhile, the harm in the tuna culture process is reduced.

The invention discloses a circulating water culture pond fish school biomass evaluation method, which comprises the following steps of: firstly, acquiring a sonar image corresponding to each circle of rotary scanning of a circulating water culture pond by sonar through steps S1 and S2, and extracting a spatial three-dimensional coordinate of each identified cultured fish in each sonar image based on image identification; filtering noise points generated due to repeated identification in the identified cultured fish coordinate points through the step S3, and counting the number of fish schools corresponding to each sonar image according to the actual cultured fish coordinate points obtained through point cloud merging, and then obtaining a linear correlation curve Si (hi) of the effective area Si of the pool wall and the sampling depth hi through the step S4, and finally, performing integration on the two curves according to intervals through the step S5, performing layered calculation on the number of the fish schools in each interval, and performing accumulation to obtain an estimated value P of the fish school biomass in the circulating water culture pond, so that the measurement accuracy of the fish school biomass in the circulating water culture pond can be improved.

The invention relates to the technical field of fishery breeding, in particular to a step depth adjustable mandarin fish domestication breeding water temperature detection device and a domestication method.The step depth adjustable mandarin fish domestication breeding water temperature detection device comprises a mounting plate; a lifting assembly capable of driving a lifting piece arranged on the mounting plate to intermittently descend in the longitudinal direction is arranged on the mounting plate; triggering pieces are arranged on the mounting plate at equal intervals. A temperature measuring cylinder is arranged on the lifting part, the temperature measuring cylinder is communicated with a water sample extracting assembly on the lifting part, the water sample extracting assembly comprises a suction cylinder which is arranged on the lifting part and is communicated with the temperature measuring cylinder, a suction part is arranged in the suction cylinder, and the suction part is matched with a driving assembly on the lifting part and can suck a water sample into the temperature measuring cylinder; when the driving assembly is separated from the triggering piece and is quickly reset, the suction piece acts reversely, and the sample pumped into the temperature measuring cylinder is discharged; through cooperation of all the assemblies, culture personnel can conveniently and accurately obtain the temperatures of water bodies at different depths of a culture pond.