336results about "Fishing" patented technology

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 utility model relates to the technical field of ecological environment detection, in particular to an underwater plankton sampling device which comprises a main body, a sampling driving component is arranged in the main body, and a control collecting component is fixedly connected in the main body; according to the utility model, the sampling depth can be accurately controlled by utilizing the depth sensor, in order to meet different research requirements, the tube wheel is driven by the motor to wind the sinking tube, and the automatic control driving mechanism can quickly complete sampling and can drive the sampling barrel to move up and down in water to realize sampling at different depths, so that the sampling efficiency is improved. The microprocessor is used for controlling the operation of the depth control mechanism and the driving mechanism, automatic sampling is realized, the inner wall of the sampling barrel is smooth, attachment and damage of plankton in the sampling process are avoided, automatic sampling is realized through the control unit, the operation is simple, and the use is easy; the sample collection container can be used for storing sampled plankton samples, so that the samples are prevented from being polluted.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

Provided are a sea condition prediction device, a sea condition prediction system and a program with which it is possible to more effectively and more accurately display sea conditions in a high resolution on board a ship.　This sea condition prediction device (10) comprises: a sea condition data acquisition unit (101a) which acquires first predicted sea condition data for a predetermined area; an observation information acquisition unit (101b) which acquires seawater observation information from a detection unit (20) installed on a ship; and a sea condition data calculation unit (101c) which, on the basis of the first predicted sea condition data and the observation information, calculates second predicted sea condition data having a higher spatial resolution than the first predicted sea condition data.

The utility model discloses an octopus trapping and recycling device, which belongs to the technical field of octopus trapping and comprises a trapping device and a recycling device, the trapping device comprises a plurality of trapping tanks, a trapping rope and fish-shaped octopus hooks, the trapping tanks are arranged on the trapping rope, the trapping tanks are made of transparent materials, and the recycling device is made of transparent materials. The fish-shaped octopus hook is dragged at the bottom end of the interior of the trapping tank, a plurality of water leakage openings are formed in the bottom of the trapping tank, the recycling device is installed on a boat side of a fishing boat, and the trapping rope recycles the trapping tank through the recycling device and takes out octopus from the trapping tank. Octopus is attracted into the trapping tank through the fish-shaped Octopus hook, and the soft hook on the fish-shaped Octopus hook prevents the Octopus from escaping from the trapping tank; during recovery, the trapping rope is pulled, the trapping rope enables the main pipe to rotate on the supporting shaft, and pulling is easier; the tank opening of the trapping tank is clamped between the two round rods, and the octopus is dug out in time; the octopus trapping and recycling device improves the efficiency of trapping and recycling octopus.

The utility model relates to an artificial fish reef stichopus japonicus proliferation catching technology, in particular to a stichopus japonicus trapping device for an artificial fish reef area. The device adopts a net cage structure, a net cage frame is made of corrosion-resistant metal profiles or PE profiles, soft nylon nettings are fixed on the net cage frame to form the bottom of the net cage and the periphery of the cage body, and movable doors which are movably connected and can be opened and closed are arranged on the periphery of the cage body of the net cage, so that the stichopus japonicus in an artificial fish reef area can enter the cage body. According to the arrangement form and scale of an artificial fish reef area, fixed-point pile arrangement and throwing of the stichopus japonicus catching device are carried out, the stichopus japonicus catching device can be independently used and can be arranged in rows for use, arrangement is convenient, use is flexible, and the stichopus japonicus catching device is suitable for being used in various different artificial fish reef construction sea areas.

The invention relates to the technical field of breeding industry, in particular to an isolation purse seine device for temporary breeding of seafood products, which comprises a floating frame, an octagonal hole is formed in the middle of the floating frame, a protective fence is arranged on the outer side of the top of the floating frame, and pull ropes are arranged at the bottom of the floating frame at intervals. The inner side of the top of the floating frame is provided with a winding assembly provided with a surrounding net. A rollable blocking net is arranged, and the whole blocking net is hung downwards under the water surface in a net bag mode and is stabilized by hanging a gravity block. When seafood capturing operation needs to be carried out, the octagonal rotating rollers are installed on the inner side of the upper edge of the surrounding net and connected through the elastic universal joints, the octagonal fixing frame can be clamped and fixed through the guide wheels, control is carried out through the top winding wheel, and therefore the surrounding net can be lifted and folded in a winding mode.

Spear fishing devices with handstraps are provided. In some embodiments, articles are provided that comprise handstraps extending up to a front end of a shaft handle, allowing users to pinch the shaft. Further, in some embodiments, a handstrap extending over a front end of a shaft is provided, offering users firm control and comfortable grabbing of a shaft. Further, in some embodiments, a spear fishing device comprises a detachable shooter, which will remain on users'hands after launching a projectile toward targets. The detachable shooter feature increases the projectile's traveling distance and aiming accuracy.

The invention relates to a bionic rotifer preying wheel disc type composite underwater target collection device and method, the collection device comprises an underwater robot and a bionic collection head, and the underwater robot is provided with a high-definition camera, a foresight sonar, an adjustable highlight LED underwater lighting lamp and a seabed in-situ metal measurement sensor; the bionic collecting head is provided with a bionic roller wheel and a conveying pipeline; the conveying pipeline is of a Venturi tube type conveying structure, and bionic protruding structures are arranged on the surfaces of the bionic roller wheels. The bionic roller wheels are coaxially connected with rotating output shafts of the waterproof driving motors correspondingly, and the waterproof driving motors drive the bionic roller wheels on the two sides of the conveying pipeline to rotate and vibrate relatively. Disturbance on a seabed sedimentary layer and influence on a seabed ecological environment can be reduced, so that collecting mechanical parts are not easy to damage in operation, the service life is prolonged, and the safety and the accuracy are improved; seabed ocean current disturbance is reduced, and an acquisition path is accurately controlled; energy consumption is reduced, jamming is avoided, sampling efficiency is improved, and the application range is widened.

The invention discloses a marine economic fish capturable quantity evaluation method and system based on an acoustic technology. The method comprises the following steps: dividing an offshore target area into a plurality of monitoring areas; sound wave data are collected through an acoustic detection device, and initial fish school density and range are obtained through LMS filtering processing in combination with fish sound wave characteristics; screening a core area and generating a detection route; initial data are corrected through underwater image detection; analyzing fish school migration distribution based on path probability and an improved A-star algorithm; and checking the capturable quantity in combination with a resource limitation standard. The system is provided with a plurality of data dynamic processing flows corresponding to the method, the problems that an existing method is low in monitoring precision, inaccurate in migration analysis and unscientific in capturing amount checking are solved, the accuracy and scientificity of capturing amount evaluation are improved through differentiated region division, dynamic data correction and intelligent migration analysis, and the capturing amount evaluation efficiency is improved. And a technical support is provided for sustainable development of fishery.

A composable insert system for converting a standard container, such as a storage tote, into a Do-It-Yourself (DIY) live trap. The system includes three modular components: a main flange body with an external thread and receiving slots, a plurality of individual thorny spike elements with bases that snap into the slots, and a lock nut. When assembled through an aperture cut into a container, the flange body is secured by the lock nut, and the attached spikes form a conical, one-way passage into the container's interior. The modular design allows for cost-effective manufacturing via simple molds and provides a versatile, scalable solution for users to create customized traps of various sizes for pests like rodents and fish. For aquatic use, the resulting trap can be made buoyant with foam or weighted to sink.

The utility model discloses a foldable mesh cage type ampullaria gigas trapping device, and relates to the technical field of biological control. Comprising a folding net cage main body, a snail collecting cage arranged on the folding net cage main body and communicated with the interior of the folding net cage main body, a food calling bag arranged in the folding net cage main body in the length direction, a food calling agent contained in the food calling bag, a plurality of snail inlets formed in the folding net cage main body and guide assemblies arranged on the outer sides of the snail inlets. One end of the folding mesh cage body away from the conch collecting cage is closed; each pomacea canaliculata collecting cage is provided with a funnel-shaped inlet for collecting pomacea canaliculata and a closed net bag, and a phagostimulant is placed in the closed net bag; the portable folding chair is reasonable in design, has a foldable design, and is convenient to carry and store. The net cage structure effectively traps the ampullaria gigas and prevents the ampullaria gigas from escaping, and meanwhile a phagostimulant can be placed to attract the ampullaria gigas to enter the net cage. The device is suitable for rice fields and other aquatic environments, is easy to install and can be repeatedly used, and pollution to the environment is greatly reduced.

A centrifugal pump system including a cylinder with a cylinder bottom having a cylinder inlet and lower chamber, a cylinder body including a plurality of longitudinal channels, and a cylinder top including a plurality of spouts. The system also includes an annulus with a circular channel and outlet as well as a motor. The motor is structured to rotate the cylinder with less energy once the cylinder has achieved a threshold rotations per minute.

The application discloses a marine net cage breeding system and a use method thereof, which comprises a net cage main body, lifting units are arranged on the two sides of the net cage main body, a sinking auxiliary unit is arranged at the bottom of the net cage main body, a breeding dome is further arranged at the top of the net cage main body, a breeding cavity is arranged in the breeding dome, and a monitoring unit is arranged in the breeding cavity; a bait feeding pipe and an air pipe which are communicated with the breeding cavity are connected to the top of the breeding dome, a breeding opening which is directed to the bottom of the net cage main body is formed in the bottom of the breeding dome, the breeding cavity and the inside of the net cage main body are communicated through the breeding opening, a bait frame which is matched with the breeding opening is further arranged in the inside of the net cage main body, and the bait frame is hung on one side of the breeding dome through a bait rope.

The application discloses a mandarin fish domestication pool, which comprises a pool body, wherein an oxygenation device, a water inlet and a water outlet are arranged in the pool body, a bait fish breeding frame is arranged below the water inlet, and a feeding device is arranged on the side of the bait fish breeding frame; the feeding device comprises a feeding pipe, a bait temporary storage tank arranged on the upper end of the feeding pipe, a feeding hopper arranged on the upper end of the bait temporary storage tank, cathode ring pieces and anode ring pieces arranged in the feeding pipe, and a pulse generator and a pulse power amplifier connected through wires. The domestication pool is improved, so that live fish feeding, live fish and dead fish or feed proportionate feeding are facilitated, and switching and adjustment are facilitated, thereby improving the convenience and success rate of domestication.

The utility model belongs to the field of aquatic product detection, and particularly relates to an aquatic product capturing device for aquatic product sampling inspection, which comprises a shell, and a rotating shaft is fixedly connected to the position, close to one end, of the inner side of the shell; water in the shell is discharged out of the device through forward rotation of the propeller blades, a water source enters from the baffle jacked by the front side of the shell and carries aquatic products into the device, and when a certain number of aquatic products are collected in the shell, the propeller blades are rotated reversely, the water source enters the shell through the pipeline, the baffle is closed, the cover plate is opened, the aquatic products are guided into the collecting box, and the aquatic products are conveniently collected. Secondly, through forward rotation of the propeller blades, water in the shell is discharged out of the device, a water source enters from a baffle jacked by the front side of the shell and carries aquatic products to enter the device, when a certain amount of aquatic products are collected in the shell, the propeller blades are rotated reversely, the water source enters the shell through a pipeline, the baffle is closed, and the cover plate is opened; the aquatic products are guided into the collecting box and are conveniently collected, and the collecting efficiency of the device is improved.

The application discloses a turbine and a centrifugal fish suction pump, and relates to the technical field of fish suction pumps, and aims to solve the technical problems of the vicious cycle of efficiency and damage caused by the design defects of a traditional fish suction pump turbine, including the following aspects: the strong shearing force of the blade causes damage to fish bodies, resulting in low survival rate of the fish bodies; the symmetrical double-blade structure causes intensified eccentric vibration and aggravates abrasion; the wide flow channel needs high rotating speed to compensate the lift, but prolongs the residence time of the fish bodies; and the like, the turbine body is designed in a spiral solid structure, a single inlet and outlet flow channel layout are adopted, the flow field optimization of the front special-shaped suction inlet and the dynamic balance of the back concentricity compensation structure are combined, the live fish transportation efficiency is improved, the problems of skin damage, internal organ displacement and the like of the fish bodies caused by mechanical extrusion or collision are avoided, meanwhile, the hydraulic conveying efficiency is obviously improved, and the equipment loss and operation cost in the breeding process are effectively reduced.

The trapping cage accessory comprises a one-way inlet, the one-way inlet is provided with a main body, one end of the main body is connected with inverted tassels, an external thread is arranged outside the main body, and a nut is arranged outside the external thread; when a mineral water bottle or a beverage bottle is found, the bottom of the bottle is cut off, or the bottle is matched with a bottomless bottle, the nut is sleeved outside the bottle, the inverse tassel is inserted into the bottle, the nut is screwed on the external thread, and bait, ricefield eels and small fishes are put into the bottle from the inverse tassel and are trapped in the bottle; a cover connector used in cooperation with a one-way inlet is provided with a body, internal threads are arranged inside the body, external threads are arranged outside the body, internal threads are arranged inside an outer cover, and the outer cover is fixed outside the body. A cover connector covers a bottle opening, a net bag is arranged between the body and the outer cover and used for collecting caught animals, a floater is arranged in the net bag to enable ricefield eels entering the net bag to stretch out of the water surface to breathe, a fixing rope is arranged on the net bag to bind a trapping cage to a marker, and the situation that the trapping cage is washed away or sinks into water and is not easy to find is prevented.

The invention discloses an offshore wind-fish fusion bait self-feeding culture net cage and a culture method, the offshore wind-fish fusion bait self-feeding culture net cage comprises a net cage main body arranged on a wind power support foundation, the net cage main body comprises a bait trap cage and a culture net, a lifting unit is arranged on the wind power support foundation, and a fish luring monitoring unit is further arranged at the top of the bait trap cage; the outer portion of the bait trap cage is fixedly connected and covered with a net to form a bait trap cavity, a bait inlet frame is arranged in the middle of the bait trap cavity, the bait trap cage is provided with a plurality of bait inlet channels matched with the bait inlet frame in the circumferential direction, and the bait trap cavity is communicated with seawater through the bait inlet. The bait trap cage is communicated with the culture net through a guide unit; in this way, the bait trapping space (bait trap cage) and the breeding space (breeding net) are vertically integrated on the wind power support base, an original offshore wind power platform does not need to be transformed basically, wind power management is not affected, and efficient utilization of the three-dimensional space of a sea area is achieved.

We provide the system. [Solution] Collect fish finder data, By integrating past weather conditions, seasons, and fishing records, and analyzing them with artificial intelligence, A means for notifying an information processing device of information indicating the location of the fishing grounds in coordinates, A means to function as a platform for information recipients to act efficiently, with the aim of managing urban resources. Based on the analyzed data, this information will be provided to fishermen as a means to optimize resource utilization within urban areas. A system that includes this.

The invention discloses a bait fish luring device, and relates to the technical field of fish trapping devices.The bait fish luring device comprises a net cage, the net cage is in threaded connection with a cage cover, feeding ports are formed in the circumferential direction of the cage cover in an array mode, and inlets are formed in the positions, below the feeding ports, of the cage cover in the circumferential direction; the inner wall of the box cover is rotatably connected with a feeding mechanism capable of feeding bait in the circumferential direction of the box cover, and the inner wall, located below the inlet, of the box cover is fixedly connected with a driving mechanism used for driving fish into the net cage. The feeding mechanism can feed baits to the position far away from the net cage, the fish luring range of the baits is increased, the fishes in the distance can be attracted by the baits, the density of the baits in the net cage is large, the fishes attracted by the baits far away from the baits are finally attracted into the net cage, and the fish luring effect is improved; and the usage amount of the whole fish luring equipment is reduced.

To provide a poaching monitoring support system and a poaching monitoring support method that assist in appropriately grasping the positions of on-site observers and causing the on-site observers to give instructions even if on-site observers, general fishermen, and poachers are mixed in the fishing grounds at night.SOLUTION: A poaching monitoring support system assists a supervisor in determining the position of an on-site observer located at fishing grounds and instructing the on-site observer in the fishing grounds at night. The poaching monitoring support system includes: portable tools 40 and 50 that are carried by the on-site observer and can emit or reflect infrared or near-infrared light; a camera device 10 that receives the light emitted or reflected by the portable tools 40 and 50 and captures an image; a display device 20 that receives the image captured by the camera device 10 and displays it to the supervisor; and a mobile communication terminal 30 carried by the supervisor and the on-site observer and capable of at least making a call from the supervisor to the on-site observer.SELECTED DRAWING: Figure 1

The present disclosure relates to an ovitrap and a method of controlling mosquito populations. The ovitrap includes a container, a cover, and a dividing mechanism for dividing the container into two regions, which in use are filled with water, and which communicate via an opening such that a first volume below the dividing mechanism defines a larvae trapping region, and a second volume above the dividing mechanism defines an egg receiving region A light source having a cool, white spectra with two peaks is mounted above the container and positioned to direct light downwards at a water surface, such that the larvae move in a direction away from the light source, from the second volume into the first volume below the dividing mechanism via the opening. A gating mechanism is operatively linked to the light source for opening and closing the opening.

This invention provides a urinal that can be used to safely capture eels, small animals, and other similar creatures. [Solution] A urinal bottle 1 having a screw-on lid (screw cap) 2, wherein a grid-like pattern of holes or several holes are made on the upper surface of the screw-on lid (screw cap) to allow unwanted liquids such as water or urine to be discharged.

The invention relates to the field of fishing facilities, in particular to a self-propelled fishpond grading fishing and conveying device which comprises a pontoon platform, a driving part is arranged on the front portion of the pontoon platform, a lifting belt is arranged on the outer side of the driving part and arranged in an inclined mode, and a transition hopper is arranged behind the lifting belt in an inclined mode. A fish guiding plate obliquely extends from the upper portion of the interior of the transition hopper, a forked base is arranged on the lower edge of the interior of the transition hopper in an attached mode, the end of the forked base is in an arc shape, and the inner surface of the transition hopper, the outer surface of the fish guiding plate and the outer surface of the forked base are all in smooth arrangement. The lower portion of the transition hopper is divided into a large opening and a small opening through the forked base, an adapting piece is arranged between the forked base and the transition hopper, and two water tanks are placed on the rear portion of the upper end of the pontoon platform. According to the invention, fish schools can be automatically lifted and conveyed from water, and damage-free automatic classification is carried out according to the sizes of fish bodies.

The present application relates to the technical field of aquaculture, and more particularly to a liquid driving clamping device based on the principle of sudden elastic jump, comprising a support, a clamping assembly is arranged on the support, and a hydraulic pipe group is arranged on the clamping assembly; the clamping assembly comprises a first clamping piece and a second clamping piece which are symmetrically arranged and can be buckled, and one side of the first clamping piece and the second clamping piece is rotatably connected with the support. The present application is made of flexible rubber, and will not cause damage to small aquatic organisms in the grabbing process. The convex curved surface structure based on the principle of sudden elastic jump is adopted, the size of the force is self-adaptive with the size of the grabbed object when closed, the driving force is liquid driving, the noise is low, and there is no risk of electric leakage in underwater operation.

The utility model relates to the technical field of sturgeon culture net cages, and discloses a liftable sturgeon culture net cage which comprises an upper frame body, a lower frame body is arranged below the upper frame body, nettings are arranged between the upper frame body and the lower frame body and in the lower frame body, a lifting mechanism is arranged at the top of the upper frame body, and a lifting mechanism is arranged at the bottom of the lifting mechanism. The lifting mechanism comprises two L-shaped rods fixedly installed on the back face of the upper frame body, a top plate is fixedly installed at the tops of the two L-shaped rods, and a double-end servo motor is fixedly installed at the top of the top plate. By arranging the double-end servo motor, the rotating shaft, the winding disc and the steel wire rope, the two mounting plates can be driven to move upwards, and the two mounting plates can drive the lower frame body to move upwards, so that sturgeons in the net cage float upwards under the driving of the lower frame body, and the sturgeons in the net cage are further conveniently fished; and after fishing is completed, the interior of the net cage can be conveniently cleaned.

The application discloses a kind of marine economic fish assessable amount based on acoustic technology method and system, comprising: dividing nearshore target area into multiple monitoring areas;Through acoustic detection device, acoustic data is collected, and initial fish school density and range are obtained by LMS filtering processing in combination with fish acoustic characteristics;Filter core area and generate detection route;Correct initial data by underwater image detection;Based on path probability and improved A-star algorithm, fish school migration distribution is analyzed;In combination with resource restriction standard, assessable amount is determined.The system sets multiple data dynamic processing procedures corresponding to the above method, solves the problems of low monitoring accuracy, inaccurate migration analysis and unscientific assessable amount determination of existing methods, and improves the accuracy and scientificity of assessable amount evaluation through differentiated area division, dynamic data correction and intelligent migration analysis, providing technical support for sustainable development of fishery.

The utility model aims to provide a device for eliminating leeches on the body surface of Dongquan star spot, and relates to the technical field of aquaculture. A sick fish pond and a fish observing pond are communicated with a treatment pond through a guide pipe, and a fish pump is arranged on the guide pipe, so that fishes in the sick fish pond can be pumped into the treatment pond for treatment; treated fishes can be pumped into the fish observation pond through the fish pump for observation, and operation is convenient and fast; a plurality of ultraviolet lamps are arranged on the periphery of the inner wall of the treatment pond to irradiate the fishes, and a voltage device is arranged to electrically stimulate the fishes in the treatment pond, so that the leeches on the bodies of the fishes fall off and fall into a detachably mounted collection box below an outlet through a filter screen arranged below the outlet at the bottom to be collected; the scraping plate is slidably arranged on the inclined surface at the bottom of the treatment pond, the leeches on the inclined surface are scraped into the collecting box, the outlet is blocked by sliding the sealing plate at the bottom of the treatment pond, water flow is prevented from flowing out, and the collecting box can be detached and the leeches can be cleaned by sliding the limiting block on the supporting frame below the treatment pond, so that the leeches are convenient to clean.