CN103782971A - Pelteobagrus fulvidraco capturing method - Google Patents

Abstract

The invention discloses a pelteobagrus fulvidraco capturing method. The pelteobagrus fulvidraco capturing method includes: S1, preparing a net; S2, assembling the net; S3, sanitizing by a trichloroisocyanuric acid sanitizer; S4, pulling and dragging the net; S5, drawing the net in; S6, sealing an opening of a net cage; S7, oxygenating; S8, sizing pelteobagrus fulvidraco. The net utilized in the pelteobagrus fulvidraco capturing method is simple in structure and low in cost. The upper edge of the net is dragged and pulled by an operator, so that sludge at the bottom of a pool cannot be brought into the net, and required dragging force and labor intensity are low. The net is a knotless netting, captured targets cannot hook the netting, and since the whole capturing process is operated underwater, the captured targets cannot be hurt, death rate of the captured targets is lowered effectively, one-time capturing for the whole pool can be realized, and large-scale capturing is benefited.

Description

A kind of fishing method of yellow catfish

technical field

The invention relates to a fishery fishing method, in particular to a fishing method of yellow catfish.

Background technique

Pelteobagrus belongs to Siluriformes, Siluriformes, Bagridae, Pelteobagrus, and Pelteobagrus fulvidraco (Richardson). It is a small freshwater economic fish, which is distributed in all major water systems in my country, especially in the Yangtze River. Widely distributed in lakes, ponds and streams in the middle and lower reaches. Pelter catfish is rich in amino acids, with tender meat, delicious taste, high nutritional value, no intermuscular spines, and has nourishing and medicinal value. It has been widely recognized by people, and its value has doubled. In the next few years, the breeding area of yellow catfish will continue to expand. With the maturity of the breeding technology of yellow catfish fry, the problem of seed supply in some areas will be effectively solved. The breeding area will continue to spread from the main breeding area to the surrounding areas. The spread of provinces to neighboring provinces and the common development of multiple farming models will gradually achieve the development goals of high efficiency and ecology.

Yellow catfish mostly inhabit shallow water areas around lakes with slow-flowing aquatic plants and rivers entering the lake. They live at the bottom of the lake, especially like to live in still water or slow-flowing shoals, where there is a lot of humus and mud. It lurks at the bottom of the water or in rock crevices during the day, and is active and foraging at night. In winter, it gathers in deep water and lurks at the bottom of the pond when it is disturbed by the outside world.

The traditional fishing method of yellow catfish uses tools such as hanging nets, sticky nets, end nets, rotating nets, and hanging nets. It is difficult to catch yellow catfish in batches with traditional nets because the traditional fishing nets are too large and heavy. , Not only is the labor intensity high during fishing operations, but the pond bottom mud is easy to enter the net, the net gear is seriously damaged, the catch is small, the fishing effect is poor, and the return catch rate is less than 20% of the pond, and the missed yellow catfish is easily injured. Easily startled.

Contents of the invention

The purpose of the present invention is to provide a method for catching yellow catfish with low labor intensity, not limited by any complicated waters, large catch rate and good fishing effect, and overcome the problems caused by the excessive size and weight of traditional fishing nets. , During fishing operations, not only the labor intensity is high, the net gear is seriously damaged, the catch is small, and the fishing effect is poor. The yellow catfish that is missed or whose pectoral fin is hooked by the net wire is vulnerable to injury and is easily frightened to produce a stress response.

In order to solve the above object, the invention provides a method for fishing yellow catfish, comprising the following steps: S1 net gear preparation, S2 net gear installation, S3 strong chlorine essence disinfectant use, S4 pulling net traction, S5 net collection, S6 Cage sealing, S7 oxygenation, S8 fish sieving.

Step S1 net preparation includes net cage 1, pull net 4, block net 8, described net cage 1 is made up of fixed rod 2 and net clothing 3, one end of described net cage 1 is provided with opening, and the bottom of opening end is provided with A mesh tongue 7, sinkers 6 are arranged on the edge of the mesh tongue, and the drag net 4 and the block net 8 are respectively arranged on two opposite sides of the opening of the net box 1 .

Step S2 net gear installation: the net cage 1 is fixed on the 1/2 position of the long side of the pond mouth with the fixed rod 2, and the open end of the net cage 1 faces the short side of the pond mouth. The moving end of the pull net 4 is arranged along the edge of the pond along the opposite direction of the cage opening. The mobile end of blocking net 8 is fixed on the bank, and the sinker sinks into the bottom of the water.

Step S3 uses strong chlorine essence disinfectant: use strong chlorine essence disinfectant to splash in the forward direction of pulling net 4, so that the yellow catfish that originally lived on the bottom can move to the middle and upper layers of the water body, and at the same time disinfect the water body and yellow catfish. 100-300/667m ² .

Step S4 pulling the net: one operator wears leather trousers and walks in the pond water so that the sinker 6 does not leave the bottom of the pool but can move on the bottom of the pool; another operator pulls the upper edge of the net 4 to move the upper edge slightly Faster than the lower edge, keep moving speed 6-8m/min.

Step S5 to collect the net: when the mobile end of the net 4 is pulled to the side where the net box is set, the net action is started, the upper and lower edges and the mesh are pulled ashore at the same time, the area of the net 4 enclosure is reduced, and the circle is placed on the net 4 Fishing objects in the cage are driven into the net cage 1 from the opening.

Step S6 Sealing the net cage: pull all the pulling nets 4 to the 7 net tongues, insert the bamboo pole from the bottom, lift the net tongue 7, and seal the net cage opening.

Step S7 Oxygenation: Putting a microporous aeration disk near the net cage 1 to increase oxygen or installing a water pump to draw water to make the water near the net cage 1 flow and increase oxygen.

Step S8 Fish sieving: Screen the fish according to the requirements, and raise or transport the fish according to different specifications.

The length of the dragnet 4 is 0.5 to 1 times that of the pool width plus the length of the pool, and the height is 1.5 to 2.5 times the water depth.

The length of the blocking net 8 is 3-5m, the lower edge is provided with a sinker 6, and the net clothing is preferably a polyethylene knotless mesh.

The material of the fixed rod 2 is preferably a moso bamboo rod or a steel pipe, so that the fishing net can be arranged at a fixed position in the pond when in use, and will not be disturbed by fish schools or pulled by the drag net 4 to float.

A buoy 5 is arranged on the upper edge of the pull-net 4 , and a sinker 6 is arranged on the lower edge of the pull-net 4 , and the netting of the pull-net 4 is preferably a polyethylene knotless mesh.

The buoys 5 are evenly arranged along the upper edge of the drag net 4 .

The sinkers 6 are evenly arranged along the lower edge of the pull-net 4 .

The net cage 1 has a length of 6-10m, a width of 2-5m, and a height of 1.5-2m.

The netting 3 is preferably a polyethylene knotless mesh.

The mesh density of the polyethylene knotless mesh is 10-60 mesh.

Compared with the existing fishing technology, the present invention has the following advantages: the fishing nets used in the fishing method for yellow catfish disclosed by the present invention are simple in structure and low in cost. When in use, the operator pulls the edge of the net and does not bring in the sludge at the bottom of the pool. The required traction force is small and the labor intensity is low. The nets are made of knotless nets, the fishing objects will not be hooked on the nets and the whole fishing process is carried out with water, and there is no damage to the fishing objects. large-scale fishing.

Description of drawings

Fig. 1 is the structural representation of fishing gear in the preferred example of the present invention

Detailed ways

The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1.

The invention discloses a fishing method for yellow catfish, the steps include S1 net gear preparation, S2 net gear installation, S3 use of strong chlorine disinfectant, S4 net pulling, S5 net collection, S6 net cage sealing, S7 oxygenation , S8 fish sub-sieve.

Step S1 net preparation includes net cage 1, pull net 4, block net 8, described net cage 1 is made up of fixed rod 2 and net clothing 3, one end of described net cage 1 is provided with opening, and the bottom of opening end is provided with A mesh tongue 7, sinkers 6 are arranged on the edge of the mesh tongue, and the drag net 4 and the block net 8 are respectively arranged on two opposite sides of the opening of the net box 1 .

Step S2 net gear installation: the net cage 1 is fixed on the 1/2 position of the long side of the pond mouth with the fixed rod 2, and the open end of the net cage 1 faces the short side of the pond mouth. The moving end of the pull net 4 is arranged along the edge of the pond along the opposite direction of the cage opening. The mobile end of blocking net 8 is fixed on the bank, and the sinker sinks into the bottom of the water.

Step S3 uses strong chlorine essence disinfectant: use strong chlorine essence disinfectant to splash in the forward direction of pulling net 4, so that the yellow catfish that originally lived on the bottom can move to the middle and upper layers of the water body, and at the same time disinfect the water body and yellow catfish. 100-300/667m ² .

Step S4 pulling the net: one operator wears leather trousers and walks in the pond water so that the sinker 6 does not leave the bottom of the pool but can move on the bottom of the pool; another operator pulls the upper edge of the net 4 to move the upper edge slightly Faster than the lower edge, keep moving speed 6-8m/min.

Step S5 to collect the net: when the mobile end of the net 4 is pulled to the side where the net box is set, the net action is started, the upper and lower edges and the mesh are pulled ashore at the same time, the area of the net 4 enclosure is reduced, and the circle is placed on the net 4 Fishing objects in the cage are driven into the net cage 1 from the opening.

Step S6 Sealing the net cage: pull all the pulling nets 4 to the 7 net tongues, insert the bamboo pole from the bottom, lift the net tongue 7, and seal the net cage opening.

Step S7 Oxygenation: Putting a microporous aeration disk near the net cage 1 to increase oxygen or installing a water pump to draw water to make the water near the net cage 1 flow and increase oxygen.

Step S8 Fish sieving: Screen the fish according to the requirements, and raise or transport the fish according to different specifications.

Specifically, the length of the dragnet 4 is the width of the pond plus 0.5 times to 1 times the length of the pond, so that the operator can cover the entire pond with the dragnet 4 when in use, so that the maximum catch can be obtained for one fishing; The height of net 4 is 1.3 times to 2 times of water depth, leaving more height margin not only facilitates the use of the operator, but also can prevent the fishing object from jumping and escaping in the fishing process.

Further, the upper edge of the drag net 4 is provided with a float 5, and the float 5 adopts a foam float with a diameter of 10-12cm to prevent the upper edge of the drag net 4 from sinking; the lower edge of the drag net 4 is provided with a sinker 6, The preferred iron chain of sinker 6 is to prevent the lower edge of pull net 4 from floating. Floaters 5 and sinkers 6 are evenly arranged according to certain gaps to prevent fishing objects from escaping from the gaps.

Net cage 1 is made up of fixed rod 2 and net clothes 3, and fixed rod net cage net clothes builds box shape, and in the preferred embodiment of the present invention, builds the box body shape of cuboid by four fixed rods 2; Net clothes 3 uses The polyethylene mesh is sewn. In a preferred embodiment of the present invention, in order to prevent damage to the fishing object, the net clothing 3 is made of polyethylene knotless mesh, and the mesh density of the knotless mesh is 10-60 mesh. The material of the fixed rod 2 is preferably a moso bamboo rod or a steel pipe, so that the fishing net can be arranged at a fixed position in the pond when in use, and will not be disturbed by fish schools or pulled by the drag net 4 to float.

In a preferred embodiment of the present invention, the net cage 1 is a cuboid, with a length of 6-10m, a width of 2-5m, and a height of 1.5-2m. The fishing objects can be placed in the net cage 1 for sub-screening or temporarily It is convenient for transportation and stocking.

The fishing net used in the method for fishing yellow catfish disclosed by the invention has simple structure and low cost. When in use, the operator pulls the drag net 4 to the top, and will not bring in the mud at the bottom of the pool, the required traction force is small, and the labor intensity is low. The nets are made of knotless nets, the fishing objects will not be hooked on the nets and the whole fishing process is carried out with water, and the fishing objects are not damaged. large-scale fishing.

Claims (8)

1. a fishing method for yellow catfish, is characterized in that: it comprises the following steps, S1 net gear preparation, S2 net gear installation, S3 strong chlorine essence disinfectant uses, S4 pulls net traction, S5 collects net, S6 cage Sealing, S7 oxygenation, S8 fish sieving. 2. the fishing method of yellow catfish according to claim 1, is characterized in that: step S1 net gear preparation comprises net cage (1), draw net (4), block net (8), described net cage (1 ) is made up of fixed bar (2) and net clothing (3), and one end of described cage (1) is provided with opening, and the bottom of opening end is provided with net tongue (7), and net tongue edge is provided with sinker (6), The pulling net (4) and the blocking net (8) are respectively arranged on the two opposite vertical sides of the opening of the net cage (1). 3. The fishing method of yellow catfish according to claim 1 or 2, characterized in that: step S2 net gear installation: the net cage (1) is fixed to the 1/2 position of the long side of the pond mouth with a fixed rod (2) , the open end of net cage (1) faces the short side of pond mouth. The moving end of the pull net (4) is arranged along the edge of the pond along the opposite direction of the cage opening. The mobile end of blocking net (8) is fixed on the bank, and sinker sinks into the bottom of the water. 4. the fishing method of yellow catfish according to claim 1, is characterized in that: step S3 uses strong chlorine essence disinfectant: use strong chlorine essence disinfectant to splash in pulling net (4) forward direction, make originally camp benthic The living yellow catfish moves to the middle and upper layers of the water body, and at the same time disinfects the water body and the yellow catfish. 5. The method for fishing yellow catfish according to claims 1 to 4, characterized in that: step S4 pulling the net: an operator wears leather pants and walks in the pond water so that the sinker (6) does not leave the bottom of the pond , but can move at the bottom of the pool, another operator pulls the upper edge of the pull net (4), makes the upper edge move slightly faster than the lower edge, and keeps the moving speed at 6-8m/min. 6. according to the fishing method of the described yellow catfish of claim 1 to 3 arbitrary claims, it is characterized in that: step S5 closes the net: when the mobile end of the net (4) is pulled to the side where the net cage is set, Start to collect the net action, the upper and lower edges and the net sheet are pulled ashore simultaneously, and the net area of the net (4) is reduced, and the fishing objects circled in the net (4) are driven into the net cage (1) from the opening. 7. according to the method for fishing yellow catfish described in any one of claims 1 to 3, it is characterized in that: step S6 cage sealing: pull all pulling nets (4) to the net tongue (7) root place, from Insert the bamboo pole at the bottom, lift the net tongue (7), and seal the net cage (1) opening. 8. The method for fishing yellow catfish according to any one of claims 1 to 3, characterized in that: step S7 oxygenation: put a microporous oxygenation plate near the net cage (1) to increase oxygenation or install a water pump Fetching water makes the water body flow near the net cage (1) oxygen-increasing.

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