CN114424760A - Coilia ectenes trapping device and method in breeding season - Google Patents

Abstract

The invention discloses a coilia ectenes trapping device and method in breeding season, the coilia ectenes trapping device comprises a ship body, a lifting assembly is arranged on the ship body, the lifting assembly is connected with trapping assemblies arranged in an array mode through anchor ropes, connecting ropes and rope connecting devices are arranged between adjacent trapping assemblies, auxiliary collecting pieces are arranged on the connecting ropes on two sides of the rope connecting devices, each trapping assembly comprises a floating base body providing buoyancy, a plurality of propellers are arranged below the floating base body and below the water surface, a net sleeve assembly is arranged below the floating base body through a connecting plate, the connecting plate is connected with a catching cylinder through a lifting rope, a bait sleeve is fixed in the catching cylinder, a planting assembly is arranged between the bottom of the catching cylinder and the bottom of the bait sleeve, the coilia ectenes in the breeding season are thrown and recovered through the lifting assembly, the coilia ectenes are attracted by utilizing the bait sleeve and the planting assembly, and the coilia ectenes in the breeding season are captured through the catching cylinder, during the process, the auxiliary collecting piece and the net cover assembly can be utilized to collect the coilia ectenes roes.

Description

Coilia ectenes trapping device and method in breeding season

Technical Field

The invention belongs to the field of fishery protection and research, and particularly relates to a variable-diameter glass fiber reinforced plastic tank production mold with a seal head.

Background

Coilia ectenes is commonly called coilia ectenes, hairtail, and belongs to the order of herring, anchovy, and genus coilia. Coilia ectenes is migratory fish, usually lives in middle and upper water areas near the sea, enters rivers from near the sea in spring and summer every year, and is bred in regions with slow water flow, such as river branches or lakes. The coilia ectenes has higher economic value and can form stable fishing flood, so the coilia ectenes has been one of the most important fishing species in the water areas at the downstream and the mouth of the Yangtze river for a long time, the coilia ectenes often inhabit the mouth of the river and the shallow sea near the sea to feed, and the mature coilia ectenes clusters are traced upward in batches to enter the river to lay eggs in the breeding season. Due to factors such as transitional fishing, environmental pollution and hydraulic engineering construction, the natural resources of the coilia ectenes tend to be exhausted, and are rated as endangered grades by the world natural protection alliance (IUCN).

The current situation of the accelerated decline of coilia nasus resources has been widely concerned, and various works related to the reduction and the control fishing of coilia nasus have been gradually developed: controlling the number of issued franchise catching certificates, reducing the total number by at least 30%, considering the reproductive characteristics of the coilia ectenes and the input-output ratio of fishery production, carrying out limited catching on each river section at the downstream of Yangtze river, simultaneously carrying out admission control on the coilia ectenes purchasing and circulation, and further basically controlling the coilia ectenes catching amount and marketing amount of each river section; the method limits the loss speed of the coilia ectenes resources from the aspects above, so as to effectively protect coilia ectenes parents and larvae respectively, and in the breeding direction of the coilia ectenes, the coilia ectenes in the breeding period can be subjected to operations such as artificial insemination after being caught, and then the fertilized adult is released, so that the breeding speed and the mating success rate of the coilia ectenes are greatly improved, and therefore, the device designs a device for capturing the coilia ectenes in the breeding period, so that the breeding quantity of the coilia ectenes is improved, and the attenuation speed of the coilia ectenes resources is reduced.

Disclosure of Invention

The invention aims to provide a coilia ectenes trapping device in a breeding season, which can catch coilia ectenes which cannot normally lay eggs in a breeding season and due to river channel improvement and improve coilia ectenes breeding amount through artificial insemination breeding.

The technical scheme adopted by the invention for realizing the purpose is as follows:

coilia ectenes trapping device in breeding season, include: the hull, be equipped with on the bow of hull and carry the subassembly of drawing, carry and draw the subassembly to be connected with and throw in the subassembly of traping on the surface of water, the array is laid and is equipped with even rope ware between the subassembly of traping, even rope ware both sides are equipped with supplementary collecting part, it includes showy base member to trape the subassembly, it is provided with a plurality of propellers to showy base member inside to be provided with outward, it is provided with the connecting plate to float base member below symmetry, the connecting plate below is equipped with rings and lifting rope, the lifting rope below is connected with catches a section of thick bamboo, it is fixed with the bait cover to catch a section of thick bamboo internal fixation, the inherent bottom of catching a section of thick bamboo is connected with plants the subassembly, wherein, be equipped with the net cover subassembly between the connecting plate. The hull receives and releases the trapping assemblies connected with the hull through the lifting assembly, the trapping assemblies are connected through the rope connecting device and buffer the motion generated between the adjacent trapping assemblies, the floating base body provides integral buoyancy for the trapping device and ensures that the device can float on the water surface after a large amount of coilia ectenes are trapped, and be unlikely to device weight too big and lead to the device to sink, and the accessible is observed and is floated the quantity that the subassembly caught coilia ectenes of base member exposure height judgement on the surface of water, in time to device recovery processing once, the removal of propeller auxiliary device in aqueous, thereby it catches the line to be convenient for adjust the position formation of each subassembly of traping, it attracts the sword crucian and catches it to set up the bait cover in the section of thick bamboo of traping, the ovum come-up that the sword crucian of the aquatic of traping produced is collected by the interception of supplementary collection piece, it attracts the sword crucian through planting pasture and water in the subassembly to plant, and reduce the stress response after the sword crucian is caught.

Preferably, the lifting component comprises a first vertical rod, a first cross rod is arranged at the top end of the first vertical rod, a fixing plate is connected to the lower portion of the first cross rod through a bolt, a connecting column is rotatably arranged on the lower end face of the fixing plate, and a first frame body is fixed to the lower portion of the connecting column. The pulley block is fixed in the concave surface of the first frame body, pulleys are rotatably arranged between the pulley blocks, a second frame body is arranged below the first frame body, a U-shaped groove is formed in a bottom plate of the second frame body, a connecting seat is arranged on the second frame body, a connecting rod is arranged between the connecting seats, a cylindrical roller is sleeved on the connecting rod, and an anchor rope is arranged between the cylindrical rollers. The fixing plate is erected through the first vertical rod and the second vertical rod which are of a certain height, so that the anchor rope is prevented from being broken due to contact friction between the anchor rope and the edge of a ship body when the anchor rope is lifted, the fixing plate is connected with the second vertical rod through a bolt, the device connected below the fixing plate is convenient to disassemble and clean, the anchor rope on the pulley passes through a gap between the two cylindrical rollers and is positioned in the U-shaped groove, the anchor rope is limited to move in a vertical plane, on one hand, the anchor rope is prevented from deviating in the horizontal direction and leaving the lifting assembly, and on the other hand, the anchor rope is prevented from swinging left and right along with the trapping assembly and being mutually abraded with the lifting assembly; and when the trapping assembly pulls the anchor rope to move on the pulley, the movement of the anchor rope drives the rotation of the two cylindrical rollers and the rotation of the pulley, the partial sliding friction of the anchor rope is changed into the rolling friction of the cylindrical rollers and the pulley, the abrasion of the anchor rope is reduced, and the phenomenon that the device cannot be recycled due to the breakage of the anchor rope is avoided.

Preferably, the propeller comprises a driving motor, the driving motor is fixed in the floating base body, the floating base body is provided with a storage battery connected with the driving motor, the tail end of a rotating shaft of the driving motor is provided with rotating fan blades in a surrounding mode, protective shells are arranged outside the rotating fan blades, and the protective shells are fixed on the side wall of the floating base body. The floating base body protects the storage battery and supplies power to the driving motor through the storage battery, the driving motor works to drive the rotating fan blades to rotate to generate a pushing air flow, and the floating base body can be assisted to move on the water surface to reach a migration zone of the coilia ectenes, so that the device can obtain a better trapping effect, the protective shell on the outer side protects the fan blades from being interfered by external organisms and objects on one hand, and on the other hand, the coilia ectenes is prevented from being rolled by the rotating fan blades to cause resource waste.

Preferably, the net cover assembly comprises a first rotating shaft, the first rotating shaft is fixed between the two connecting plates, a second net cover is sleeved on the first rotating shaft and is a cylindrical net cover with two sealed ends, the outer wall of the second net cover is symmetrical and surrounds a supporting rod, the second net cover is fixedly provided with a first net cover through the supporting rod, the first net cover is a triangular pyramid net cover with two open ends, and the second net cover can rotate in the axial direction of the first rotating shaft. The roe that produces of coilia ectenes in traping the subassembly is held back and is collected through first dictyosome and second dictyosome, avoid the roe to continue upwards floating and inhaled and destroy by rotatory flabellum, and the second dictyosome is located inside the first dictyosome, enable the roe part through double-deck dictyosome structure and intercept in first dictyosome and the second dictyosome intermediate layer, reduce the probability and the loss quantity that drop of roe, and the second dictyosome drives first dictyosome rotatory on the first pivot, produced rivers disturbance avoids other shoals to be close to on the one hand and phagocytizes the roe of holding back, on the other hand avoids the shoal to be drawn into by rotatory flabellum and causes biological community to destroy and the device damages.

Preferably, a capture section of thick bamboo includes first solid fixed ring, first solid fixed ring becomes the longitudinal symmetry setting, the array is equipped with the solid fixed ring of second between two first solid fixed rings, it has laid the stiffener to encircle in vertical direction between first solid fixed ring and the second solid fixed ring, arbitrary stiffener all is connected with the solid fixed ring of second of two first solid fixed ring and array setting, the cylinder support body lateral wall that first solid fixed ring and the solid fixed ring of second and stiffener connection formation is equipped with the cylinder screen panel, the array has seted up on the cylinder screen panel and has caught the mouth, the first solid fixed ring inboard that is located the top is equipped with the top surface screen panel, top surface screen panel middle part and bait cover fixed connection, the first solid fixed ring inboard that is located the below is fixed with the bottom surface screen panel, first connecting ring is laid to the bottom surface screen panel up end array. First solid fixed ring sets up with the solid fixed ring coaxial line of second and forms through the stiffener and stabilize cylindrical frame structure, the cylinder screen panel forms relative wall space with top surface screen panel and bottom surface screen panel, enable outside water and the inside circulation of a capture section of thick bamboo when realizing catching coilia ectenes, guarantee the life vigor of coilia ectenes, it is less round mouth and be equipped with the ring at the opening part to catch the mouth, it is used for getting into the cylinder screen panel through coilia ectenes to catch the mouth, coilia ectenes in the cylinder screen panel can't leave less round mouth easily because quantity density is big, realize the seizure of coilia ectenes.

Preferably, the bait cover includes the first ring that the symmetry set up, the first ring that is located the top passes through the top surface screen panel and connects fixedly, be equipped with the second ring that the longitudinal symmetry laid between two first rings, second ring diameter is less than first ring, encircle between first ring and the adjacent second ring and be provided with the first support of slope, encircle between the second ring and be provided with the second support of being connected with first support, first ring has the netting of being connected with first support and second support with the peripheral parcel of second ring, the first ring inboard of below is provided with the gauze. The first circular ring and the second circular ring which are symmetrically arranged are connected and fixed through the first support and the second support to form a frame body, the outer net coat and the bottom net gauze wrap the frame body to form a hourglass-shaped box body, the bait material placed at the bottom of the box body diffuses to water outside the device under the action of water flow through the net coat, so that the coilia ectenes are attracted to enter the catching cylinder, the bait sleeve with the hourglass-shaped structure can realize that the bait is relatively concentrated at the axle center of the catching cylinder under the action of gravity, so that the coilia ectenes can be effectively attracted and caught, the bait can float in the bait sleeve at all places under the action of water flow disturbance, so that the coilia ectenes in the catching cylinder are attracted to swim, the high coilia ectenes are caught, the vitality of the coilia ectenes is prevented from gathering to generate extrusion damage, the upper end of the bait sleeve is fixed through the top surface mesh cover, eggs produced by the coilia ectenes can enter the bait sleeve from mesh gaps of the top surface mesh cover and cannot pass through the net coat, on the one hand, the partial collection of coilia ectenes eggs is realized, (ii) a On the other hand, the bait sleeve plays a role in protecting collected fish eggs and prevents the fish eggs from being extruded and damaged.

Preferably, the planting assembly comprises a net piece, a second connecting ring is arranged on the lower end face of the net piece in an array mode, the second connecting ring and the first connecting ring 48 are correspondingly arranged and connected through an elastic connecting ring, a planting plate arranged in an array mode is arranged on the upper end face of the net piece, and the planting plate is made of light materials and is provided with a plurality of planting holes inside. The aquatic plants and the aquatic plants are planted in the planting holes, under the action of water flow disturbance and swimming of the coilia ectenes, the mesh can float in a small range from top to bottom under the pulling of the elastic connecting rings, so that the waterweed plants on the planting plates are driven to shake, the normal living environment of the coilia ectenes is simulated through the waterweeds which continuously shake, the stress reaction after the coilia ectenes are captured is reduced, the life vitality of the coilia ectenes is ensured, the planting plates which float up and down can extrude water flow to generate air flow to discharge biological excrement generated by the coilia ectenes, the phenomenon that excessive pollutants are accumulated in the catching cylinder to cause environmental pollution in the catching cylinder is avoided, weak sound can be generated when the planting plates made of light materials collide the catching cylinder in the floating process, the coilia ectenes are promoted to swim, and extrusion injury caused by fish swarm aggregation is avoided,

preferably, even rope ware is including linking the rope base member, even the rope base member for cylinder casing and both sides center department set up the through-hole, it has the connection rope to alternate respectively in the through-hole of both sides, connect the rope to be located and link fixed limiting plate that is equipped with in rope base member inner portion, be fixed with the spring between limiting plate and the adjacent through-hole, link the outer face of cylinder of rope base member and be equipped with the kicking block, the kicking block is a cylinder section of thick bamboo and has seted up the mounting groove at the interlude, is equipped with the lamp area in the mounting groove. Connect adjacent even rope ware and trap the subassembly through connecting the rope between the limiting plate, avoid adjacent trap the subassembly to be carried to pull the subassembly and pull the in-process dynamics too big, lead to connecting the rope fracture, surface of water wave energy drives traps the subassembly and removes and pulls the connection rope, the limiting plate on the connection rope slides and compression spring in even rope ware, spring buffering pulls power and continues elastic potential energy simultaneously, can pull back the subassembly of traping through the elastic potential energy of spring after the device is wafted far along with the wave energy, the floating block of drum type is for even rope ware provides buoyancy and avoids even rope ware sinking to lead to trapping the subassembly to be close to the striking each other, the mounting groove is used for installation and protection lamp area, thereby luminous lamp area realizes judging the position scope of even rope ware position and inferring the trap subassembly through the light source at night or when visibility is lower.

Preferably, supplementary piece of collecting is including blocking the strip, and the card strip is C type pipe fitting, and the card strip cover is on connecting the rope, and card strip opening part terminal surface fixedly connected with collects the otter board, collects the relative horizontal plane downward sloping of otter board, and the snap ring has been laid to the array on the card strip, and snap ring symmetric connection has the flexure strip, and the flexure strip passes through bolted connection with the collection otter board of this side.

Collect the otter board and connect the rope and pass through the card strip and be connected and the slope of bending downwards, on the one hand, the buoyancy of connecting the rope is increased through the collection otter board of slope, on the other hand, when rivers impact collects otter board one side, make the net piece of this side swing down relatively the horizontal plane vertical, thereby increase and the contact cross-section of rivers direction, the net hole through collecting the otter board intercepts the collection along with the coilia ectenes roe that rivers fluttered, rivers can be partially followed along the upper surface of the supreme net piece that flows through of slope net piece from bottom to top simultaneously, can cushion rivers to the impact of even rope ware, thereby promote the capture stability of traping the subassembly to coilia ectenes, when the surface of water is calm, two supplementary collection otter boards resume the state of declining downwards, be the coilia ectenes roe that floats in the subassembly is traped to the below is intercepted and is collected.

The invention adopts the rope connecting device and the connecting rope to connect a plurality of trapping assemblies, and the auxiliary collecting piece is arranged on the connecting rope to collect fish eggs, thus having the following beneficial effects: the coilia ectenes rewarding in the river channel can be captured more efficiently by the connecting body formed by the adjacent connection of the plurality of trapping assemblies; the net component can intercept and collect fish eggs floating upwards underwater, so that excessive loss or damage of the fish eggs is avoided; the catching cylinder and the bait sleeve trap the coilia ectenes without damage, so that the life force of the coilia ectenes is ensured, and the success rate of later artificial insemination is improved; the tether cushions the motion of the trap assembly and can provide the worker with a range of positions of the trap assembly at night. Therefore, the coilia ectenes trapping device in the breeding season can be used for catching coilia ectenes which cannot normally lay eggs in the breeding season and due to river channel improvement, and the breeding amount of the coilia ectenes is improved by artificial insemination and breeding.

Drawings

FIG. 1 is a schematic view of a hull;

figure 2 is a schematic view of a first upright;

FIG. 3 is a schematic view of a pull assembly;

FIG. 4 is a schematic view of an auxiliary collection member;

FIG. 5 is a schematic view of a rope connector;

FIG. 6 is a schematic view of a floating substrate;

FIG. 7 is a schematic view of a driving device;

FIG. 8 is a schematic view of a mesh assembly;

figure 9 is a schematic view of a capture cartridge;

figure 10 is a schematic view of a bait cartridge;

FIG. 11 is a schematic view of a planting assembly;

figure 12 is a schematic view of an elastic attachment ring.

Reference numerals: 1. a hull; 2. a pull-up assembly; 20. a first upright rod; 21. a first cross bar; 22. a fixing plate; 23. connecting columns; 24. a first frame body; 25. a pulley seat; 26. a pulley; 27. a second frame body; 28. a U-shaped groove; 29. a connecting seat; 30. a connecting rod; 31. a cylindrical drum; 32. an anchor line; 3. a trap assembly; 30. a floating substrate; 31. a propeller; 310, a drive motor; 311; rotating the fan blades; 312. a protective housing; 313. a storage battery; 32. a connecting plate; 320, a lifting ring; 321. a lifting rope; 33. a mesh component; 330, a first rotating shaft; 331. a second mesh sleeve; 332. a support bar; 333. a first mesh cover; 34. a catching cylinder; 341, first fixing ring; 342. a second retaining ring; 343. a reinforcing bar; 344. a cylindrical mesh enclosure; 345. a capture port; 346. a top mesh enclosure; 347. a bottom mesh enclosure; 348. a first connecting ring; 35. a bait sleeve; 350, a first ring; 351. a second circular ring; 352. a first bracket; 353. a second bracket; 354. screening; 36. a planting assembly; 360, mesh; 361. a second connection ring; 362. an elastic connecting ring; 363. planting a plate; 364. planting holes; 4. a rope connecting device; 40. a rope connecting base body; 41. a through hole; 42. connecting ropes; 43. a limiting plate; 44. a spring; 45. floating blocks; 46. mounting grooves; 47. a light strip; 5. an auxiliary collection member; 50. clamping the strip; 51. collecting the screen plate; 52. a snap ring; 520. an elastic sheet.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:

it is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a device and a method for trapping coilia ectenes in breeding season include a hull 1, a lifting assembly 2 is disposed at a bow position of the hull 1, the lifting assembly 2 includes a first vertical rod 20 fixed to the hull 1, the first vertical rod 20 is transversely fixed at a top end of the first vertical rod 21, a fixing plate 22 is detachably connected below a cylindrical surface of the first horizontal rod 21 through a bolt, a connecting column 23 is disposed downward at a center of a lower end surface of the fixing plate 22, the connecting column 23 is inserted into a circular shaft in a lower end surface of the fixing plate 22 and can rotate relative to the fixing plate 22, a first frame body 24 is fixedly connected below the connecting column 23, the first frame body 24 is three combined plate structures which are vertically connected with each other, a pulley seat 25 is fixedly disposed on a lower base plate of the first frame body 24, a pulley 26 is rotatably disposed on the pulley seat 25, a second frame body 27 having the same structure as the first frame body 24 is fixedly disposed below a lower base plate of the first frame body 24, the edge of the lower bottom plate of the second frame body 27 is provided with a U-shaped groove 28, connecting seats 29 are obliquely and symmetrically arranged between the upper bottom plate and the lower bottom plate of the second frame body 27, a connecting rod 30 is fixedly arranged between the connecting seats 29 in the same vertical plane, a cylindrical roller 31 is rotatably sleeved on the connecting rod 30, a gap is formed between the two cylindrical rollers 31 and is provided with an anchor rope 32, the anchor rope 32 penetrates through the gap between the two cylindrical rollers, one end of the anchor rope is positioned on the pulley 26, the other end of the anchor rope is connected with a rope connecting device 4, the other end of the rope connecting device 4 is connected with a trapping assembly 3, when the trapping assembly 3 on the water surface moves under the influence of wave energy, the anchor rope 32 is dragged to move, the U-shaped groove 28 positions the anchor rope 32, the moving range of the anchor rope 32 is ensured to be in the U-shaped groove 28 instead of four-time stirring, the two cylindrical rollers 31 are driven by the movement of the anchor rope 32 to rotate on the connecting rod 31, the gap between the cylindrical rollers 31 limits the anchor rope 32 to move in the vertical plane where the gap lock is positioned, avoid hawser 32 to break away from and carry lifting assembly 2 because of luring the swing of subassembly 3, hawser 32 is when being dragged on pulley 26 simultaneously, can drive pulley 26 and two cylinder drum 31 rotations, sliding friction with hawser 32 changes rolling friction into, the wearing and tearing of hawser 32 when carrying and pulling have been reduced, avoid the cracked back device of hawser 32 can't be withdrawed, can drive spliced pole 23 rotatory on fixed plate 22 when dragging hawser 32 on the subassembly 3 horizontal direction of traping, thereby guarantee that the orientation position of hawser 32 is unanimous with the orientation of traping subassembly 3, avoid the direction of hawser 32 on lifting assembly 2 and the orientation contained angle of traping subassembly 3 to reduce and pull out hawser 32.

Referring to fig. 6-7, the trapping assembly 3 includes a floating base 30, the floating base 30 is a hollow light-weight shell, the propeller 31 is arranged on the side wall array of the floating base 30, the propeller 31 includes a driving motor 310, the bottom of the driving motor 310 is fixed on the inner bottom surface of a groove formed in the side wall of the floating base 30, the rotating shaft of the driving motor 310 is arranged outward, the end of the driving motor 310 is provided with a rotating fan blade 311 in a surrounding manner, the rotating fan blade 311 is sleeved with a protective casing 312, the protective casing 312 is fixed on the side wall of the floating base 30, the inner bottom surface of the floating base 30 is provided with a storage battery 313, and any driving motor 310 is connected with the storage battery 313 through a wire. The floating base body 30 protects the storage battery 313 and supplies power to the driving motor 310 through the storage battery 131, the driving motor 310 works to drive the rotating fan blades 311 to rotate to generate a pushing air flow, and the floating base body 30 can be assisted to move on the water surface so as to reach a migration zone of the coilia so as to obtain a better trapping effect of the device, on one hand, the outer protective shell 312 protects the rotating fan blades 311 from being interfered by external organisms and objects to cause damage to the device, and on the other hand, fishes such as the coilia are prevented from being involved in the rotating fan blades 311 to damage the biological and ecological environments. The connecting plates 32 are symmetrically arranged below the floating base body 30, the net cover component 33 is arranged between the two connecting plates 32, the net cover component 33 comprises a first rotating shaft 330, the first rotating shaft 330 is fixed between the two connecting plates 33, a second net cover 331 is rotatably arranged on the first rotating shaft 33, the second net cover 331 is a cylindrical net cover structure with two sealed ends, supporting rods 332 are symmetrically arranged on the cylindrical surface of the second net cover 331 and circumferentially distributed on the cylindrical surface of the second net cover 331, the second net cover 331 is externally connected with a first net cover 333 through the supporting rods 332, the first net cover 333 is a triangular prism net cover structure, fish eggs produced by coilia ectenes in the trapping component 3 are intercepted and collected through the first net cover 333 and the second net cover 331, the fish eggs are prevented from continuously floating upwards and being sucked and damaged by the rotating fan blades 311, the second net cover 331 is positioned in the first net cover 333, and part of the fish eggs can be intercepted in the first net cover 333 and the second net cover 331 through the double-layer net cover structure, the falling probability and the loss quantity of the fish eggs are reduced, the second net sleeve 331 drives the first net sleeve 333 to rotate on the first rotating shaft 330, and the generated water flow disturbance prevents other fish schools from approaching to phagocytose the intercepted fish eggs on the one hand, and prevents the fish schools from being involved by the rotating fan blades 331 to cause biological community damage and device damage on the other hand.

Referring to fig. 9-10, a hanging ring 320 is arranged downward on the bottom surface of any connecting plate 32, a hanging rope 321 is connected to any hanging ring 320, the hanging ropes 321 on both sides are connected to a catching cylinder 34, the catching cylinder 34 includes first fixing rings 341, the first fixing rings 341 are arranged vertically symmetrically, second fixing rings 342 are coaxially arranged in an up-down array between the two first fixing rings 341, reinforcing rods 343 are arranged around the two first fixing rings 341 in the vertical direction, any reinforcing rod 343 is connected to the two first fixing rings 341 and the second fixing rings 342 arranged in an array, the first fixing rings 341 and the second fixing rings 342 are coaxially arranged and form a stable cylindrical frame structure through the reinforcing rods 343, a cylindrical mesh enclosure 344 is arranged outside the cylindrical mesh enclosure 344, a catching opening 345 is arranged in an array on the cylindrical mesh enclosure 344, a top mesh enclosure 346 is arranged on the inner side of the first fixing ring 341 above, a bait sleeve 35 is fixedly connected to the middle of the top mesh enclosure 346, the bottom surface mesh enclosure 347 is fixed on the inner side of the first fixing ring 341 below, the first connecting rings 348 are arranged on the upper end face of the bottom surface mesh enclosure 347 in an array mode, the cylindrical mesh enclosure 344, the top surface mesh enclosure 346 and the bottom surface mesh enclosure 347 form a relative wall sealing space, coilia ectenes enter the catching cylinder 34 from the catching port 345 with a small diameter, and when the coilia ectenes colony density in the catching cylinder 34 is high, the coilia ectenes are difficult to adjust the body direction and swim out from the catching port 345, so that the coilia ectenes are caught by mistake, and the cylindrical mesh enclosure 344, the top surface mesh enclosure 346 and the bottom surface mesh enclosure 347 are all mesh enclosure structures which can be communicated with a water body, so that the coilia ectenes are kept with normal vital signs and vitality after being caught, and the success rate of subsequent artificial insemination is facilitated.

Bait cover 35 that is fixed in top surface screen panel 346 central point and puts includes first ring 350, first ring 350 is the longitudinal symmetry setting, coaxial direction longitudinal symmetry is equipped with second ring 361 between two first ring 350, the ring diameter of second ring 361 is less than first ring 350, through slope and encircle the first support 352 of laying between adjacent first ring 350 and the second interior ring 361, encircle to be equipped with vertical second support 353 between two second ring 361, the upper and lower first support 352 that corresponds the position relation is connected with corresponding second support 353, first ring 350 inboard of below is equipped with gauze 354, the peripheral parcel of first ring 350 and second ring 351 has the netting of being connected with first support 352 and second support 353, the first ring 350 inboard of below is provided with gauze 354. The first circular ring 350 and the second circular ring 351 which are symmetrically arranged are connected and fixed through the first support 352 and the second support 353 to form a frame body, the outer net coat and the bottom net gauze 354 wrap the frame body to form a hourglass-shaped box body, the bait material smell placed at the bottom of the box body is diffused to the water outside the device through the net coat under the action of water flow, so that the coilia ectenes are attracted to the catching cylinder 34, the bait sleeve with the hourglass-shaped structure can realize that the bait is relatively concentrated at the axial center of the catching cylinder 34 under the action of gravity, so that the coilia ectenes can be effectively attracted and caught, the bait can float around due to the disturbance of the water flow in the bait sleeve 35, so that the coilia ectenes in the catching cylinder 34 are attracted to swim around, the vitality of the coilia ectenes after being caught is maintained, and the coilia ectenes are prevented from being gathered and crushed and damaged is avoided, the upper end of the bait sleeve 35 is fixed through the top mesh 346, eggs produced by the coilia ectenes can enter the bait sleeve 35 from meshes of the top mesh 346 and cannot pass through the mesh screen, on one hand, the method realizes the partial collection of the coilia ectenes roes; on the other hand, the bait sleeve 35 protects the collected roe and prevents the roe from being damaged by extrusion.

Referring to fig. 11-12, a planting assembly 36 is disposed between the mesh enclosure 347 and the gauze 354 on the bottom surface, the planting assembly 36 includes a mesh sheet 360, the mesh sheet 360 is a circular mesh plate, a second connection ring 361 is fixed to the lower portion of the mesh sheet 360 in an array, the second connection ring corresponds to the first connection ring 348, the correspondingly disposed first connection ring 348 and the second connection ring 361 are connected through an elastic connection ring 362, planting plates 363 are disposed around the upper portion of the mesh sheet 360, a plurality of planting holes 364 are formed in any one of the planting plates 363 in an array, aquatic plants and aquatic plants are planted in the planting holes 364, the mesh sheet 360 can float in a small range up and down under the pulling of the elastic connection ring 362 under the action of water flow disturbance and the swimming of the coilia ectenes, so as to drive the swinging of the aquatic plants on the planting plates 363, the normal living environment of the coilia ectenes is simulated through the continuously swinging aquatic plants, the stress reaction of the captured coilia ectenes is reduced, and the vitality of the coilia ectenes is ensured, the planting plates 363 which float up and down can extrude water flow to generate air flow to discharge biological excrement generated by the coilia ectenes, so that the situation that the environment inside the catching cylinder 34 is polluted due to the fact that excessive pollutants are accumulated in the catching cylinder 34 is avoided, weak sound can be generated when the planting plates 363 made of light materials impact the catching cylinder 34 in the floating process, the coilia ectenes are promoted to swim, and extrusion injury caused by gathering of fish groups is avoided.

Referring to fig. 5, a rope connecting device 4 is arranged between two adjacent trapping assemblies 3, the rope connecting device 4 comprises a rope connecting base body 40, through holes 41 are formed in two ends of a cylindrical shell of the rope connecting base body 40, connecting ropes 42 are inserted into the through holes 41 on two sides respectively, one end of each connecting rope 42 in the rope connecting base body 40 is fixedly provided with a limiting plate 43, the other end of each connecting rope is connected with a shackle on the side of the floating base body 30, a spring 44 is fixedly arranged between each limiting plate 43 and the corresponding through hole 31, a floating block 45 is arranged on the outer wall of the rope connecting base body 40, the floating block 45 is of a cylindrical barrel structure, a mounting groove 46 is formed in the bisection position of the curved surface, a lamp strip 47 is connected in each mounting groove 46, water surface wave energy drives the trapping assemblies 3 to move and pull the connecting ropes 42, the limiting plates 43 connected with the connecting ropes 42 slide in the rope connecting base body 40 and compress the springs 44, the springs 44 buffer the pulling force and accumulate elastic potential energy through self-shaped consumption, and when the trapping assemblies 3 are not acted by waves, the distance between the trapping assemblies 3 is recovered by releasing elastic potential energy through the springs 44, the floating blocks 45 provide buoyancy for the rope connecting base body 40, the trapping assemblies 3 are prevented from being close to and colliding with each other due to the fact that the rope connecting base body 40 sinks, the concave mounting grooves 46 are used for mounting and protecting the lamp strips 47, the phenomenon that organisms are attracted by light to collide the lamp strips 47 is avoided, and the position range of the trapping assemblies 3 is deduced by judging the positions of the rope connecting devices 4 through the light sources of the lamp strips 47 at night or when the visibility is low.

Referring to fig. 4, the connecting rope 42 at two sides of the rope connecting device 4 is provided with the auxiliary collecting member 5, the auxiliary collecting member 5 includes a clip strip 50, the clip strip 50 is a C-shaped pipe, the clip strip 50 is sleeved on the connecting rope 42, the opening of the clip strip 50 is symmetrically connected with a collecting screen plate 51, the collecting screen plate 51 inclines downwards relative to the horizontal plane, the clip strip 50 is provided with snap rings 52 in an array manner, the opening of the snap ring 52 is symmetrically connected with an elastic sheet 520, the elastic sheet 520 is connected with the collecting screen plate 51 at the side through a bolt, the collecting screen plate 51 is connected with the connecting rope 42 through the clip strip 50 and bends downwards and inclines, on one hand, the buoyancy of the connecting rope 42 is increased through the inclined collecting screen plate 51, on the other hand, when water impacts the collecting screen plate 51 at the side, the collecting screen plate 51 swings downwards to sink into the water, so as to increase the contact section with the water flow direction, the collecting screen plate 51 collects and intercepts the fish eggs floating along with the water flow, meanwhile, the water flow can partially flow through the upper surface of the net piece from bottom to top along the inclined net piece, the impact of the water flow on the rope connecting device can be buffered, so that the stability of the trapping assembly 3 on two sides of the connecting rope 42 is improved, when the water surface is calm, the two collecting net plates 51 are restored to a downward slightly inclined state, the projection area of the collecting net plates 51 in the horizontal plane direction is the largest, and the coilia ectenes roe floating upwards in the trapping assembly 3 below is intercepted and collected through the collecting net plates 51 at the moment.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. Coilia ectenes trapping device in breeding season, include:

the water-borne ship comprises a ship body (1), wherein a lifting component (2) is arranged on the bow of the ship body (1), the lifting component (2) is connected with trapping components (3) thrown on the water surface, rope connecting devices (4) are arranged among the trapping components (3) arranged in an array, auxiliary collecting parts (5) are arranged on two sides of each rope connecting device (4),

the method is characterized in that: the trapping assembly (3) comprises a floating base body (30), a plurality of propellers (31) are arranged inside and outside the floating base body (30), connecting plates (32) are symmetrically arranged below the floating base body (310), lifting rings (320) and lifting ropes (321) are arranged below the connecting plates (32), a trapping barrel (34) is connected below the lifting ropes (321), a bait sleeve (35) is fixed in the trapping barrel (34), a planting assembly (36) is connected to the bottom in the trapping barrel (34),

wherein, a net cover component (33) is arranged between the connecting plates (32).

2. The coilia ectenes trapping device according to claim 1, wherein: the lifting component (2) comprises a first vertical rod (20), a first cross rod (21) is arranged at the top end of the first vertical rod (20), a fixing plate (22) is connected below the first cross rod (21) through a bolt, a connecting column (23) is rotatably arranged on the lower end surface of the fixing plate (22), a first frame body (24) is fixed below the connecting column (23), a pulley seat (25) is fixed in the concave surface of the first frame body (24), a pulley (26) is rotatably arranged between the pulley seats (25), a second frame body (27) is arranged below the first frame body (24), a U-shaped groove (28) is formed in the bottom plate of the second frame body (27), a connecting seat (29) is arranged on the second frame body (27), connecting rods (30) are arranged between the connecting seats (29), cylindrical rollers (31) are sleeved on the connecting rods (30), and anchor ropes (32) are arranged between the cylindrical rollers (31).

3. The coilia ectenes trapping device according to claim 1, wherein: propeller (31) includes driving motor (310), driving motor (310) is fixed in float in base member (30), float base member (30) be equipped with battery (313) that driving motor (310) are connected, driving motor (310) pivot end is encircleed and is laid rotating fan blade (311), rotating fan blade (311) are equipped with protective housing (312) outward, protective housing (312) are fixed in float base member (30) lateral wall.

4. The coilia ectenes trapping device according to claim 1, wherein: net cover subassembly (33) include first pivot (330), first pivot (330) are fixed in two between connecting plate (32), the cover has second net cover (331) on first pivot (330), second net cover (331) are the cylinder screen panel that both ends were sealed, second net cover (331) outer wall symmetry just encircles and has laid bracing piece (332), second net cover (331) pass through bracing piece (332) external fixation is equipped with first net cover (333), first net cover (333) are both ends open-ended triangular pyramid screen panel, second net cover (331) can first pivot (330) axis direction rotates.

5. The coilia ectenes trapping device according to claim 1, wherein: the catching cylinder (34) comprises first fixing rings (341), the first fixing rings (341) are arranged in an up-down symmetrical mode, second fixing rings (342) are symmetrically arranged between the two first fixing rings (341), reinforcing rods (343) are arranged between the first fixing rings (341) and the second fixing rings (342) in a surrounding mode in the vertical direction, any reinforcing rod (343) is connected with the two first fixing rings (341) and the two second fixing rings (342), a cylindrical mesh enclosure (344) is arranged on the side wall of a cylindrical mesh enclosure formed by the connection of the first fixing rings (341), the second fixing rings (342) and the reinforcing rods (343), catching openings (345) are formed in the cylindrical mesh enclosure (344), a top face mesh enclosure (346) is arranged in the ring of the first fixing rings (341) above, and the middle of the top face mesh enclosure (346) is fixedly connected with the bait sleeve (35), a bottom surface mesh enclosure (347) is fixed in the first fixing ring (341) ring positioned below, and first connecting rings (348) are distributed on the upper end surface of the bottom surface mesh enclosure (347) in an array mode.

6. The coilia ectenes trapping device according to claim 5, wherein: the bait sleeve (35) comprises first circular rings (350) which are symmetrically arranged, the first circular rings (350) above are fixedly connected through a top surface mesh enclosure (346), second circular rings (351) which are distributed in an upper-lower array are arranged between the two first circular rings (350), the diameters of the circular rings of the second circular rings (351) are smaller than those of the first circular rings (350), inclined first supports (352) are arranged between the first circular rings (350) and the adjacent second circular rings (351) in a surrounding mode, second supports (353) connected with the first supports (352) are arranged between the second circular rings (351) in a surrounding mode, netting connected with the first supports (352) and the second supports (353) wraps the peripheries of the first circular rings (350) and the second circular rings (351), and netting is arranged inside the first circular rings (350) below.

7. The coilia ectenes trapping device according to claim 5, wherein: the planting assembly (36) comprises a net piece (360), second connecting rings (361) are arranged on the lower end face of the net piece (360) in an array mode, the second connecting rings (361) and the first connecting rings (348) are correspondingly arranged and connected through elastic connecting rings (362), planting plates (363) distributed in an array mode are arranged on the upper end face of the net piece (360), and the planting plates (363) are made of light materials and are internally provided with a plurality of planting holes (364).

8. The coilia ectenes trapping device according to claim 1, wherein: even rope ware (4) are including company rope base member (40), even rope base member (40) locate to set up through-hole (41), both sides for cylinder casing and both sides center in through-hole (41) do not alternate and have connection rope (42), it is located to connect rope (42) even fixed limiting plate (43) that are equipped with in rope base member (40) inside end, limiting plate (43) and adjacent be fixed with spring (44) between through-hole (41), it is equipped with kicking block (45) to link outer face of cylinder of rope base member (40), mounting groove (46) have been seted up for a cylinder section of thick bamboo and at the interlude to kicking block (45), be equipped with lamp area (47) in mounting groove (46).

9. The coilia ectenes trapping device according to claim 8, wherein: supplementary collection piece (5) are including card strip (50), card strip (50) are C type pipe fitting, card strip (50) cover is in connect on rope (42), card strip (50) opening part terminal surface fixedly connected with collects otter board (51), collect otter board (51) relative horizontal plane downward sloping, card strip (50) are gone up the array and are equipped with snap ring (52), snap ring (52) symmetric connection has flexure strip (520), flexure strip (520) and this side collect otter board (51) and pass through bolted connection.

10. The method for using a reproductive coilia ectenes trapping device according to any one of claims 1-9, comprising the steps of:

-said hull (1) controls said mooring line (32) on said lifting assembly (2) so as to release said trapping assemblies (3) connected to each other to the surface of the water and to adjust the position of the device in the water by means of said propeller (31);

-planting coilia ectenes attracting aquatic plants in the planting assembly (36), adding bait material to the bait sleeve (35) to attract coilia ectenes into the catching cylinder (34), collecting the roe by the auxiliary collecting member (5), and finally, withdrawing the device by the pulling assembly.

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