Large-water-surface fish gathering and catching method

Abstract

The invention relates to the technical field of fish culture, in particular to a large-water-surface fish gathering and catching method which comprises the following steps: S1, mounting foot piles; S2, assembling a net cage; S3, mounting a blocking net; S4, gathering fishes: adopting a mode that the driving of a netting gear is primary and sound waves and current are secondary to complete the driving, gathering and catching of fish schools. The net is a driving net, and an operator drives the two paddle hanging ships to drag the driving net along the blocking net from one side of the bank of the pond to the direction close to the net cage. And S5, transferring: after the driving net drives the fish school into the net cage, an operator puts down a door curtain, captures the fish school into a net bag by using a hunting net or a net cage lifting mode, and lifts the fish school to the land by using a shipborne crane. The invention aims to effectively solve the main problems that a traditional fish catching method is low in fish gathering efficiency and bottom-layer fish is difficult to catch. Meanwhile, a plurality of secondary problems of large water surface fish area division, rapid wall attachment and bottom sinking of a net, active cruising of fish schools into a trap net, batch-by-batch multi-time catching and the like are effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of fish farming, and in particular to a method for gathering and catching fish on a large water surface. Background Art

[0002] At present, aquaculture in large water bodies such as reservoirs and ponds mostly adopts manual operation methods, where multiple people drive small boats to pull nets to drive the scattered fish schools in the reservoir to the predetermined fish gathering area and then catch them. Therefore, it is mainly used to catch silver carp and bighead carp in the upper and middle layers, but has poor effect on grass carp and crucian carp in the lower and middle layers. The specific operation process is as follows:

[0003] (1) Driving: Lay three layers of gillnets parallel to the reservoir bank (vertical direction), and move the net-laying boats forward in one direction at the same time. After all the nets are laid, use a motorboat to tow a white board with the help of sound to scare the fish into the net or flee to the fish gathering area.

[0004] (2) Fish blocking: Driving fish must be combined with fish blocking to force the fish to gather in the fish gathering area. Fish blocking uses a blocking net. When the fish are driven out of a certain area, the blocking net is immediately used to block the fish and prevent them from returning to the area where they were driven.

[0005] (3) Fishing: When the fish-herding operation is completed and the fish gather in the fish-gathering area, a net is immediately set up at a pre-selected location and the fish are then driven into the net and caught.

[0006] Traditional fishing methods have the following shortcomings:

[0007] 1) The fish species caught are mainly silver carp and bighead carp. When catching grass carp and crucian carp in the middle and lower layers and the bottom layer, the driving net cannot fit the ground and the shore well, so a large number of fish escape from the gap between the net and the shore, resulting in poor fishing effect;

[0008] 2) The fishing efficiency is low. The artificial driving method requires the operator to have good experience to ensure that the net is not dragged too fast during the operation and to keep a certain distance from the fish to avoid disturbing the fish and hitting the fishing net. In addition, the driving operation is labor-intensive and the fish are not easy to enter the fish gathering area due to their characteristics of escaping everywhere. Summary of the invention

[0009] The present application provides a method for gathering and catching fish on a large water surface, the purpose of which is to effectively solve the main problems of low fish gathering efficiency and difficulty in catching bottom fish in traditional fish catching methods; at the same time, it effectively solves multiple secondary problems such as fish area division on a large water surface, rapid adhesion and sinking of nets to the bottom, active swimming of fish into traps, and multiple catching in batches.

[0010] The present application provides a method for gathering and catching fish on a large water surface, which adopts the following technical solution:

[0011] A method for gathering and catching fish on a large water surface comprises the following steps:

[0012] S1. Install the foot pile

[0013] Holes 40 mm deep and 350 mm wide were chiseled at intervals of 60 meters on both sides of the pond. Foot stakes were placed and cement was poured into the holes until hardened.

[0014] S2. Assemble the cage

[0015] The cages are assembled on the shore, and the nets are hung after the HDPE frame is built. After the cages are assembled, they are transported to the shore of the pond and bolted to the corresponding shore piles for fixation.

[0016] S3. Install the blocking net

[0017] The net was placed on the water surface using a ship-mounted crane and bolted at both ends. One end of the net was bolted to the foot pile on the bank of the pond, and the other end was bolted to the net cage. The two ends of the net were fixed by the foot pile and the net cage. Divers assisted in bolting the underwater part of the net to the net cage, effectively avoiding a large gap between the net and the net cage.

[0018] S4, Fish Gathering

[0019] The fish are driven and gathered by nets, with sound waves and electric current as auxiliary methods. The net is a driving net, and the operator drives two paddle boats to drag the driving net along the barrier net from the side of the pond bank to the direction close to the net cage. Sound and current generators are hung on the side of the driving net and the bottom line. During the towing process of the driving net, sound and current stimulation prevent fish from escaping. The towing speed of the driving net is 0.5 knots.

[0020] S5. Transshipment

[0021] After the driving net drives the fish into the cage, the operator lowers the door curtain, uses a capture net or lifting cage to capture the fish into the net bag, and then uses a ship-mounted crane to lift the cage to land.

[0022] By adopting the above technical scheme, adopting the concept design of zoning gathering and sequential batch transfer, taking advantage of the patrolling characteristics of fish schools, and drawing on the ground trap fishing method, the large water area is divided into narrow strips, and the fish schools actively swim along the blocking net into the fish gathering net box to complete the gathering and capture, which solves the problems of low fish gathering efficiency and difficulty in catching bottom fish in traditional fishing methods; the blocking net quickly adheres to the wall and sinks to the bottom, which can realize the division of water areas for fish species in all water layers, and achieves batch capture, solving the problem of catching bottom fish; fish schools actively patrol into the trap net, which has high capture efficiency and less manual driving workload.

[0023] Preferably, cage floats and cage sinkers are respectively installed on the upper and lower ends of the cage, and the cage floats and cage sinkers are provided in plurality. The plurality of cage floats are evenly distributed along the top side of the cage, and the plurality of cage sinkers are evenly distributed at the bottom of the cage.

[0024] By adopting the above technical solution, the cage floats and cage sinkers are used to enable the cage to maintain sufficient balance in the water, so as to effectively ensure the stability of the cage in the process of catching fish, so that the fish can smoothly enter the cage for aggregation and capture.

[0025] Preferably, a fish inlet is provided on one side of the net cage, the fish inlet is connected to the inside of the net cage, there are multiple fish inlets, and the multiple fish inlets are distributed on one side of the net cage at intervals up and down; the fish inlet is shaped like a trumpet, and its end close to the inside of the net cage is closed, and its end away from the inside of the net cage is expanded.

[0026] By adopting the above technical solution, multiple fish inlets are provided, which helps the fish school to smoothly enter the net cage for gathering and capture. At the same time, the fish inlet is provided in a trumpet shape, so that when the fish school is driven to the fish inlet by the driving net, it can enter the net cage from the larger expanded end of the fish inlet, which is conducive to increasing the speed of the fish school entering the net cage. The closed end of the fish inlet is provided inside the net cage. When the fish school enters the net cage, since a large number of fish school gathers in the net cage, and the fish inlet inside the net cage is in a closed shape, and the opening at the closed shape is small, it is difficult for the fish school in the net cage to swim out of the net cage, which is conducive to ensuring that the fish school is smoothly gathered in the net cage, thereby significantly improving the efficiency of catching the fish school.

[0027] Preferably, the four sides of the cage are all provided with walkway frames for technicians to walk on.

[0028] By adopting the above technical solution, specifically in the process of gathering and catching fish schools, the technicians can observe the fishing situation in the net cage along the edge through the walkway frame and perform corresponding operations.

[0029] Preferably, a door curtain is installed on the top of the net box.

[0030] By adopting the above technical solution, after the fish school enters the net cage, the technicians can lower the door curtain to complete the capture of the fish school.

[0031] Preferably, the foot pile includes a fixed pile and a lock buckle, the lock buckle is integrally formed on one side of the fixed pile, the fixed pile is fixed to the bank of the pond by cement hardening, the lock buckle is triangular in shape as a whole, and a through hole is opened on the lock buckle for inserting the end of the pull net.

[0032] By adopting the above technical solution, after the fixed pile is placed in the dug pit, the lock is exposed outside the pit, and after the cement is poured into the pit and the fixed pile is gradually hardened, the lock is fixed at the same time. Specifically, during installation, the end of the blocking net is fixed by passing it through the insertion hole on the lock. Specifically, during installation, the end of the blocking net is fixed by passing it through the insertion hole on the lock.

[0033] Preferably, the driving net side and the bottom wire are provided with sound and current generators.

[0034] By adopting the above technical solution, the sound and current generator are used to assist the driving net to drive the fish school, which helps to speed up the efficiency of driving the fish school, so that the fish school can be gathered into the net cage more quickly and effectively, thereby improving the working efficiency.

[0035] Preferably, the blocking net and the driving net are both made of polymer material nylon net.

[0036] By adopting the above technical solution, the blocking net and the driving net are light and strong, and also have a certain degree of elasticity. This makes it easy to adjust the size of the driving net accordingly when the distance between two adjacent blocking nets changes for ponds of different sizes, thereby improving the overall adaptability of the driving net and making it more convenient to use.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. The design adopts the concept of zoning, gathering and transporting in batches, takes advantage of the patrolling characteristics of fish schools, draws on the trapping fishing method, divides the large water area into narrow strips, and the fish schools actively swim along the intercepting net into the fish collecting net box to complete the gathering and capture, which solves the problem of low fish gathering efficiency and difficulty in catching bottom fish in traditional fishing methods; the intercepting net quickly adheres to the wall and sinks to the bottom, which can realize the water division of all water layer fish species, and achieves batch catching, solving the problem of catching bottom fish; the fish schools actively patrol into the trap net, which has high catching efficiency and less manual driving workload;

[0039] 2. Setting multiple fish inlets will help the fish to smoothly enter the net cage for gathering and capture. At the same time, setting the fish inlet in a trumpet shape is done so that when the fish are driven to the fish inlet by the driving net, they can enter the net cage from the larger expanded end of the fish inlet, which is conducive to increasing the speed at which the fish enter the net cage. Setting the closed end of the fish inlet inside the net cage, when the fish enter the net cage, since a large number of fish are gathered in the net cage, and the fish inlet inside the net cage is in a closed shape with a smaller opening, it is difficult for the fish in the net cage to swim out, which is conducive to ensuring that the fish are smoothly gathered in the net cage, thereby significantly improving the efficiency of catching the fish;

[0040] 3. The materials of the blocking net and the driving net are both polymer nylon nets. This makes the blocking net and the driving net light and strong, and also has a certain degree of elasticity. This makes it easy to adjust the size of the driving net accordingly when the distance between two adjacent blocking nets changes for ponds of different sizes, which is conducive to improving the overall adaptability of the driving net and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0042] Figure 2 It is a structural schematic diagram of an embodiment of the present application specifically showing the position relationship of the fish inlet;

[0043] Figure 3 It is a structural schematic diagram of an embodiment of the present application that specifically shows the positional relationship among the fixing pile, the locking buckle and the insertion hole.

[0044] Figure numerals: 1. foot pile; 11. fixed pile; 12. lock; 2. net cage; 3. blocking net; 4. driving net; 5. door curtain; 6. net cage float; 7. net cage sinker; 8. fish inlet; 9. walkway frame; 10. through hole. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0046] Example:

[0047] The present application discloses a method for gathering and catching fish on a large surface of water, referring to Figure 1 , including the following steps:

[0048] Step 1: Install the foot pile 1

[0049] Holes with a depth of 40 mm and a width of 350 mm were chiseled at intervals of 60 m on both sides of the pond, and foot piles 1 were placed and then cement was poured into the holes until hardened.

[0050] Step 2: Assemble the cage 2

[0051] The net box 2 is assembled on the shore, and the HDPE frame is built and then the net is hung. After the net box 2 is assembled, it is transported to the shore of the pond and bolted to the foot piles 1 on the corresponding shore for fixation.

[0052] Step 3: Install the blocking net 3

[0053] Use a ship-borne crane to place the barrier net 3 on the water surface and bolt the two ends of the barrier net 3. One end of the barrier net 3 is bolted to the foot pile 1 on the bank of the pond, and the other end is bolted to the net box 2. The two ends of the barrier net 3 are fixed by the foot pile 1 and the net box 2. Divers assist in bolting the underwater part of the barrier net 3 to the net box 2, effectively avoiding a large gap between the barrier net 3 and the net box 2.

[0054] Step 4: Gathering fish

[0055] The fish are driven and gathered by using nets as the main method and sound waves and electric current as the auxiliary methods. The net is a driving net 4. The operators drive two paddle boats to drag the driving net 4 along the barrier net 3 from the side of the pond bank to the direction close to the net cage 2. Sound and current generators are hung on the side of the driving net 4 and the bottom line. During the towing process of the driving net 4, the sound and current stimulation prevent the fish from escaping. The towing speed of the driving net 4 is 0.5 knots. The driving net 4 is assisted by the sound and current generator to drive the fish, which helps to speed up the efficiency of driving the fish, so that the fish can be gathered into the net cage 2 more quickly and effectively, thereby improving the working efficiency.

[0056] Step 5: Transfer

[0057] After the driving net 4 drives the fish into the cage 2, the operator controls the door curtain 5 to be lowered, and the fish are caught in the net bag by using the capture net or lifting the cage 2, and then the cage 2 is lifted to land by the ship-mounted crane. After the cage 2 is lifted away, the side of the barrier net 3 that was previously connected to the cage 2 is transferred to the foot pile 1 on the bank of the pond for fixing.

[0058] This fishing method is designed with the concept of zoning, gathering and transporting in batches, utilizing the patrolling characteristics of fish schools, drawing on the ground trap fishing method, dividing the large water area into narrow strips, and the fish schools actively swim along the blocking net 3 into the fish collecting net box 2 to complete the gathering and capture, solving the problems of low fish gathering efficiency and difficulty in catching bottom fish in traditional fishing methods; the blocking net 3 quickly adheres to the wall and sinks to the bottom, which can realize the water area division of fish species in all water layers, and achieves batch capture, solving the problem of catching bottom fish; the fish schools actively patrol into the trap net, with high capture efficiency and less manual driving workload.

[0059] Specifically, in this embodiment, there are five nets 3, which are connected to the shore of the pond and divide the pond into five areas. The nets 3 are used to divide the entire water area into five narrow water areas in the direction of the shore, and these narrow and independent water areas are used to separate the fish in the pond. The width of each narrow water area is about 60 meters. Both ends of each net 3 are fixed by foot piles 1 on both sides of the pond. The foot piles 1 are used to bolt the nets 3, and the foot piles 1 are nailed to both sides of the pond using cement hardened piles.

[0060] The material of the blocking net 3 and the driving net 4 is a polymer material nylon net, which makes the blocking net 3 and the driving net 4 light and strong, and also has a certain degree of elasticity. This makes it easy to adjust the size of the driving net 4 accordingly when the distance between two adjacent blocking nets 3 changes for ponds of different sizes, which is conducive to improving the overall adaptability of the driving net 4 and making it more convenient to use.

[0061] The mesh size of the barrier net 3 is 60mm x 60mm, the float of the barrier net 3 is a 10cm PVC foam float, and the sinker of the barrier net 3 is a steel chain. The PVC foam float allows the float of the barrier net 3 to float stably on the water surface; the steel chain can sink the sinker of the barrier net 3 stably to the bottom of the water, thereby effectively ensuring that two adjacent barrier nets 3 can stably divide the pond into multiple independent water areas.

[0062] The fish-collecting cage 2 is set at the end of the narrow water area. Its size is 20m x 40m, and it is made of HDPE frame and nylon net. The four sides of the cage 2 are equipped with a walkway frame 9 with a width of about 0.8 meters. The technicians can observe the fishing situation in the cage 2 along the edge through the walkway frame 9 and perform corresponding operations. A two-meter-high curtain 5 structure is installed on the top of the cage 2. After the fish enter the cage 2, the technicians can lower the curtain 5 to complete the gathering of the fish.

[0063] Reference Figure 1 Specifically, cage floats 6 and cage sinkers 7 are respectively installed on the upper and lower ends of the cage 2, and the cage floats 6 and cage sinkers 7 are both provided in plurality, and the plurality of cage floats 6 are evenly distributed along the top periphery of the cage 2, and the plurality of cage sinkers 7 are evenly distributed at intervals at the bottom of the cage 2. The cage floats 6 and cage sinkers 7 enable the cage 2 to maintain sufficient balance in the water, so as to effectively ensure the stability of the cage 2 in the process of catching fish, so that the fish can smoothly enter the cage 2 for aggregation and capture.

[0064] Reference Figure 1 and Figure 2 A fish inlet 8 is provided on the periphery of the net cage 2, and the fish inlet 8 is connected to the inside of the net cage 2. There are two fish inlets 8, which are spaced apart on one side of the net cage 2. Providing two fish inlets 8 helps the fish to enter the net cage 2 smoothly for gathering and catching. A fish inlet 8 is provided on each net cage 2 corresponding to the water area separated by the barrier net 3.

[0065] Furthermore, in the present embodiment, the shape of the fish inlet 8 is trumpet-shaped, and the end thereof close to the inside of the net cage 2 is closed, and the end thereof away from the inside of the net cage 2 is expanded. The purpose of doing so is that when the school of fish is driven to the fish inlet 8 by the driving net 4, it can enter the net cage 2 from the larger expanded end of the fish inlet 8, thereby facilitating the speed at which the school of fish enters the net cage 2. The closed end of the fish inlet 8 is arranged inside the net cage 2. When the school of fish enters the net cage 2, since a large number of school of fish gather inside the net cage 2, and the fish inlet 8 inside the net cage 2 is closed, and the opening at the closed end is small, it is difficult for the school of fish in the net cage 2 to swim out of the net cage 2, thereby facilitating the smooth gathering and capture of the school of fish in the net cage 2, thereby significantly improving the efficiency of catching the school of fish.

[0066] Specifically, refer to Figure 1 and Figure 3 The foot pile 1 includes a fixed pile 11 and a lock 12. The fixed pile 11 is columnar, and the lock 12 is integrally formed on one side of the fixed pile 11. Specifically, during installation, the fixed pile 11 is fixed to the bank of the pond by cement hardening. Holes with a depth of 40 mm and a width of 350 mm are chiseled at intervals of 60 meters on both sides of the bank of the pond. The fixed pile 11 is placed in the hole and the hole is cast with cement until it hardens.

[0067] Reference Figure 1 and Figure 3 After the fixing pile 11 is placed in the dug hole, the lock buckle 12 is exposed outside the hole. After the cement is poured into the hole and the fixing pile 11 is gradually hardened, the lock buckle 12 is fixed at the same time. The lock buckle 12 is triangular in shape as a whole, and a circular insertion hole 10 is opened on the lock buckle 12 for the end of the net to be inserted. Specifically, during installation, the end of the blocking net 3 is passed through the insertion hole 10 on the lock buckle 12 for fixing.

[0068] The implementation principle of a method for gathering and catching fish on a large water surface in the embodiment of the present application is as follows:

[0069] Step 1: Install the foot pile 1

[0070] Holes with a depth of 40 mm and a width of 350 mm were chiseled at intervals of 60 m on both sides of the pond, and foot piles 1 were placed and then cement was poured into the holes until hardened.

[0071] Step 2: Assemble the cage 2

[0072] The net box 2 is assembled on the shore, and the HDPE frame is built and then the net is hung. After the net box 2 is assembled, it is transported to the shore of the pond and bolted to the foot piles 1 on the corresponding shore for fixation.

[0073] Step 3: Install the blocking net 3

[0074] Use a ship-borne crane to place the barrier net 3 on the water surface and bolt the two ends of the barrier net 3. One end of the barrier net 3 is bolted to the foot pile 1 on the bank of the pond, and the other end is bolted to the net box 2. The two ends of the barrier net 3 are fixed by the foot pile 1 and the net box 2. Divers assist in bolting the underwater part of the barrier net 3 to the net box 2, effectively avoiding a large gap between the barrier net 3 and the net box 2.

[0075] Step 4: Gathering fish

[0076] The fish school is driven and gathered by means of net driving as the main method and sound waves and electric current as the auxiliary methods. The net is a driving net 4. The operator drives two paddle boats to drag the driving net 4 along the blocking net 3 from the side of the pond bank to the direction close to the net cage 2. Sound and electric current generators are hung on the side of the driving net 4 and the bottom line. During the towing process of the driving net 4, the sound and electric current stimulation prevents the fish from escaping. The towing speed of the driving net 4 is 0.5 knots.

[0077] Step 5: Transfer

[0078] After the driving net 4 drives the fish into the net cage 2, the operator controls the door curtain 5 to be lowered, uses the capture net or lifts the net cage 2 to capture the fish into the net bag, and then uses the ship-borne crane to lift the net cage 2 to land.

[0079] This fishing method is designed with the concept of zoning, gathering and transporting in batches, utilizing the patrolling characteristics of fish schools, drawing on the ground trap fishing method, dividing the large water area into narrow strips, and the fish schools actively swim along the blocking net 3 into the fish collecting net box 2 to complete the gathering and capture, solving the problems of low fish gathering efficiency and difficulty in catching bottom fish in traditional fishing methods; the blocking net 3 quickly adheres to the wall and sinks to the bottom, which can realize the water area division of fish species in all water layers, and achieves batch capture, solving the problem of catching bottom fish; the fish schools actively patrol into the trap net, with high capture efficiency and less manual driving workload.

[0080] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for gathering and catching fish on a large surface of water, characterized by: The following steps are involved: S1. Install the foot pile (1) Holes with a depth of 40 mm and a width of 350 mm were chiseled at intervals of 60 m on both sides of the pond, and foot piles (1) were placed in the holes, and cement was poured into the holes until hardened. S2. Assemble the cage (2) The net box (2) is assembled on the shore, and the HDPE frame is built and then the net is hung. After the net box (2) is assembled, it is transported to the shore of the pond and bolted to the foot piles (1) on the corresponding shore for fixation. S3. Install the blocking net (3) The barrier net (3) is placed on the water surface using a ship-mounted crane, and the two ends of the barrier net (3) are bolted. One end of the barrier net (3) is bolted to a foot pile (1) on the bank of the pond, and the other end is bolted to the net box (2). The two ends of the barrier net (3) are fixed by the foot pile (1) and the net box (2). Divers assist in bolting the underwater part of the barrier net (3) to the net box (2), effectively avoiding a large gap between the barrier net (3) and the net box (2). S4, Fish Gathering The method of driving fish schools and gathering fish schools is mainly driven by nets, and supplemented by sound waves and electric currents. The net is a driving net (4), and operators drive two paddle boats to drag the driving net (4) along the blocking net (3) from the side of the pond bank to the direction close to the net cage (2). Sound and electric current generators are hung on the side of the driving net (4) and the bottom line. During the towing process of the driving net (4), sound and electric current stimulation prevent fish from escaping. The towing speed of the driving net (4) is 0.5 knots. S5. Transshipment After the driving net (4) drives the fish into the net cage (2), the operator controls the door curtain (5) to be lowered, and uses a capture net or a lifting net cage (2) to capture the fish into a net bag, and then uses a ship-mounted crane to lift the net cage (2) to land.

2. A method for gathering and catching fish on a large surface of water according to claim 1, characterized in that: A net cage float (6) and a net cage sinker (7) are respectively installed on the upper and lower ends of the net cage (2). The net cage float (6) and the net cage sinker (7) are both provided in a plurality. The plurality of net cage floats (6) are evenly distributed along the top periphery of the net cage (2), and the plurality of net cage sinkers (7) are evenly distributed at intervals at the bottom of the net cage (2).

3. A method for gathering and catching fish on a large surface of water according to claim 2, characterized in that: A fish inlet (8) is provided on one side of the net box (2), the fish inlet (8) being connected to the interior of the net box (2), and the fish inlet (8) is provided in plurality, and the plurality of fish inlets (8) are distributed at intervals up and down on one side of the net box (2); the shape of the fish inlet (8) is a trumpet shape, and the end thereof close to the interior of the net box (2) is in a closed shape, and the end thereof away from the interior of the net box (2) is in an expanded shape.

4. A method for gathering and catching fish on a large surface of water according to claim 3, characterized in that: The four sides of the net box (2) are all provided with walkway frames (9) for technicians to walk on.

5. A method for gathering and catching fish on a large surface of water according to claim 4, characterized in that: A door curtain (5) is installed on the top of the net box (2).

6. A method for gathering and catching fish on a large surface of water according to claim 1, characterized in that: The foot pile (1) comprises a fixing pile (11) and a lock buckle (12); the lock buckle (12) is integrally formed on one side of the fixing pile (11); the fixing pile (11) is fixed to the bank of the pond by cement hardening; the lock buckle (12) is triangular in shape as a whole; and a through hole (10) is provided on the lock buckle (12) for inserting the end of the pull net.

7. A method for gathering and catching fish on a large surface of water according to claim 1, characterized in that: The driving net (4) is provided with sound and current generators on the net side and the bottom wire.

8. A method for gathering and catching fish on a large surface of water according to claim 1, characterized in that: The blocking net (3) and the driving net (4) are both made of nylon net, a polymer material.

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