CN211657204U - Ground cage net for catching and polyculturing litopenaeus vannamei in adult fish of takifugu orientalis - Google Patents
Ground cage net for catching and polyculturing litopenaeus vannamei in adult fish of takifugu orientalis Download PDFInfo
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- CN211657204U CN211657204U CN201922381210.0U CN201922381210U CN211657204U CN 211657204 U CN211657204 U CN 211657204U CN 201922381210 U CN201922381210 U CN 201922381210U CN 211657204 U CN211657204 U CN 211657204U
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Abstract
The utility model relates to the field of aquaculture facilities, in particular to a ground cage net for catching Penaeus vannamei grown in Fugu orientalis adult fish in a mixed mode, which comprises a netting ground cage which is woven by 6 strands of nylon net wires, has meshes of 2.8 cm, is 48 cm wide, is 48 cm high and is 10 m long, and is characterized in that two sides of the netting ground cage are respectively provided with a trumpet-shaped shrimp inlet which is 20 cm long and 10 cm wide, the periphery of the shrimp inlet is covered with a covering net, the meshes of the covering net are 7 cm, and the meshes of the covering net during shrimp catching are square; the covering net is fixed on the grade-dividing support frame of the ground cage through net wires. The ground cage achieves the purpose of separating fish and shrimps when in use, prevents the fish and the shrimps from mixing and entering the net, influences the quantity and the survival rate of the captured penaeus vannamei boone, and has obvious effect. When the covering net is covered, the net needs to be opened, so that the meshes of the covering net are in a square state, and the purpose of separating fish and shrimps is achieved.
Description
Technical Field
The utility model relates to an aquaculture catches equipment, especially catches the ground cage net of polyculture in takifugu orientalis adult fish south americana white shrimp.
Background
Penaeus vannamei (Penaeus vannamei), also known as white-skin shrimp, white-back shrimp and white shrimp, is originally produced in waters along the Pacific coast of south America, is most concentrated in distribution along the coast of Ecuador, is one of the three major shrimp-breeding varieties with the highest shrimp-breeding yield in the world at present, and is also one of the most major breeding varieties for aquaculture of Chinese aquatic products at present. The penaeus vannamei bred in Shanghai area mainly adopts a intensive culture mode of pond single culture, the yield is 300-600 kg/mu, and generally one season in one year.
In recent years, due to factors such as water quality deterioration and germ-carrying seedling bodies entering a pool caused by high-density breeding for high yield in single breeding, shrimp diseases often occur, the yield is unstable, and even if the shrimp diseases are seriously laid out, the shrimp diseases cause serious loss of farmers. Changing the breeding mode, adjusting the breeding structure, searching fish species suitable for being polycultured with the penaeus vannamei boone, and performing polyculture becomes the development trend of breeding mode adjustment. The offshore research place in Shanghai city carries out the mixed culture test of the penaeus vannamei and the takifugu flavidus adult fish in 2018, succeeds, designs a ground cage net suitable for catching the penaeus vannamei when the takifugu flavidus adult fish is mixed cultured, and selects a proper mesh as the cover, thereby not only not influencing the net entering of the penaeus vannamei, but also effectively blocking the entering of the takifugu flavidus adult fish, achieving the purposes of separating the fish from the shrimp and ensuring the catching quantity and the catching survival rate. Solves the problem of catching the white prawns in the mixed culture mode.
SUMMERY OF THE UTILITY MODEL
The utility model aims to neither influence the white shrimp and advance the net, effectively block the entering of takifugu orientalis adult fish again, reached fish, shrimp separation, ensure to catch quantity and catch the survival rate.
In order to realize the purpose, the utility model provides a ground cage net for catching penaeus vannamei boone polycultured in takifugu orientalis adult fish, which comprises a knotted net shrimp-catching ground cage which is knitted by 6 strands of nylon net wires, has a net mesh of 2.8 cm, a width of 48 cm, a height of 48 cm and a length of 10 m, and is characterized in that the two sides of the knotted net shrimp-catching ground cage are respectively provided with a trumpet-shaped shrimp inlet with a length of 20 cm and a width of 10 cm, the periphery of the shrimp inlet is covered with a covering net, the net mesh of the covering net is 7 cm, and the net mesh of the covering net during shrimp catching is square; the covering net is fixed on the ground cage grading support frame through a net wire.
The ground cage achieves the purpose of separating fish and shrimps when in use, prevents the fish and the shrimps from mixing and entering the net, influences the quantity and the survival rate of the captured penaeus vannamei boone, and has obvious effect. The ground cage is low in manufacturing cost, convenient to obtain materials, simple in structure and high in practicability. When the covering net is covered, the net needs to be opened, so that the meshes of the covering net are in a square state, and the purpose of separating fish and shrimps is achieved. The covering net is installed to prevent the adult fish of takifugu orientalis from entering the net and biting and interfering the white shrimps when the south white shrimps are caught.
Preferably, the cover net is a knotted cover net braided by 12 strands of nylon net wires.
Preferably, the mesh wire is a 9-ply nylon mesh wire.
The utility model has the advantages that the ground cage net for catching and polyculturing the south America white shrimps in the adult fish of the takifugu rubripes is manufactured according to the difference of the individual body types and the individual sizes of the takifugu rubripes and the south America white shrimps; the manufacturing ground cage selects a conventional pond shrimp catching ground cage, the covering net selects a knotted net which is braided by 12 strands of net wires and has a mesh of 7 cm, and the knotted and fixed net wires are 9 strands of nylon net wires; the ground cage achieves the purpose of separating fish and shrimps when in use, prevents the fish and the shrimps from mixing and entering the net, influences the quantity and the survival rate of the captured penaeus vannamei boone, and has obvious effect. The ground cage is low in manufacturing cost, convenient to obtain materials, simple in structure and high in practicability.
Drawings
FIG. 1 is a side view of the net-connected shrimp-catching cage of the utility model;
FIG. 2 is a schematic structural view of the shrimp catching cage with netting of the utility model without a covering net;
FIG. 3 is a front view of the net-forming shrimp-catching ground cage of the utility model.
The reference numerals and components referred to in the drawings are as follows:
1-shrimp catching ground cage with netting; 2-entering the shrimp mouth; 3-covering the net.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
Example 1
Referring to the attached drawings 1-3, the utility model provides a ground cage net for catching penaeus vannamei boone in takifugu orientalis adult fish, which comprises a knotted net shrimp-catching ground cage 1 which is braided by 6 strands of nylon net wires and has meshes of 2.8 cm, 48 cm wide, 48 cm high and 10 m long, wherein horn-shaped shrimp inlets 2 with the length of 20 cm and the width of 10 cm are respectively arranged at two sides of the knotted net shrimp-catching ground cage, a covering net 3 covers the periphery of the shrimp inlets, the meshes of the covering net are 7 cm, and the meshes of the covering net during shrimp catching are square; the covering net is fixed on the grade-dividing support frame of the ground cage through net wires.
The ground cage achieves the purpose of separating fish and shrimps when in use, prevents the fish and the shrimps from mixing and entering the net, influences the quantity and the survival rate of the captured penaeus vannamei boone, and has obvious effect. The ground cage is low in manufacturing cost, convenient to obtain materials, simple in structure and high in practicability. When the covering net is covered, the net needs to be opened, so that the meshes of the covering net are in a square state, and the purpose of separating fish and shrimps is achieved. The covering net is installed to prevent the adult fish of takifugu orientalis from entering the net and biting and interfering the white shrimps when the south white shrimps are caught.
Preferably, the cover net is a knotted cover net braided with 12 strands of nylon mesh.
Preferably, the mesh wire is a 9-ply nylon mesh wire.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.
Claims (3)
1. A land-cage net for catching Penaeus vannamei Boone polycultured in adult fish of Takifugu orientalis comprises a knotted net shrimp-catching land cage which is knitted by 6 strands of nylon net wires and has a mesh of 2.8 cm, a width of 48 cm, a height of 48 cm and a length of 10 m, and is characterized in that two sides of the knotted net shrimp-catching land cage are respectively provided with a trumpet-shaped shrimp inlet with a length of 20 cm and a width of 10 cm, the periphery of the shrimp inlet is covered with a covering net, the mesh of the covering net is 7 cm, and the mesh of the covering net during shrimp catching is square; the covering net is fixed on the ground cage grading support frame through a net wire.
2. The ground cage net for Penaeus vannamei boone harvested and polycultured in adult Takifugu rubripes, according to claim 1, wherein the covering net is a knotted covering net braided with 12 strands of nylon net thread.
3. The ground cage net for Penaeus vannamei boone harvested and polycultured in adult Takifugu rubripes as claimed in claim 1, wherein the net string is 9 strands of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381210.0U CN211657204U (en) | 2019-12-26 | 2019-12-26 | Ground cage net for catching and polyculturing litopenaeus vannamei in adult fish of takifugu orientalis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381210.0U CN211657204U (en) | 2019-12-26 | 2019-12-26 | Ground cage net for catching and polyculturing litopenaeus vannamei in adult fish of takifugu orientalis |
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| Publication Number | Publication Date |
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| CN211657204U true CN211657204U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922381210.0U Active CN211657204U (en) | 2019-12-26 | 2019-12-26 | Ground cage net for catching and polyculturing litopenaeus vannamei in adult fish of takifugu orientalis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112889763A (en) * | 2021-03-24 | 2021-06-04 | 苏州伊乐农业科技有限公司 | Cultured crab catching ground cage and use method thereof |
-
2019
- 2019-12-26 CN CN201922381210.0U patent/CN211657204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112889763A (en) * | 2021-03-24 | 2021-06-04 | 苏州伊乐农业科技有限公司 | Cultured crab catching ground cage and use method thereof |
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