CN2829358Y - Triple gill net suitable for working in cay waters - Google Patents
Triple gill net suitable for working in cay waters Download PDFInfo
- Publication number
- CN2829358Y CN2829358Y CN 200520066213 CN200520066213U CN2829358Y CN 2829358 Y CN2829358 Y CN 2829358Y CN 200520066213 CN200520066213 CN 200520066213 CN 200520066213 U CN200520066213 U CN 200520066213U CN 2829358 Y CN2829358 Y CN 2829358Y
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- etting
- layer
- net
- mesh
- nets
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Abstract
The utility model discloses a triple gill net suitable for working in cay water, which comprises two outer-layer nets and an inner-layer net clamped between the outer-layer nets, wherein the mesh sizes of the outer-layer nets are 4-6 times of the mesh size of the inner-layer net; the side edges of the three-layer nets are entwisted with each other, and the upper edges of the three-layer nets are knotted and connected with upper ropes on which pressure-resistant floaters are uniformly assembled; the lower edges of the three-layer nets are knotted and connected with lower ropes on which sinkers are uniformly assembled. When the utility model works in water, the inner-layer net enters the outer-layer nets to form a net bag under the condition of the impact of water flows or having fishing objects, therefore the utility model achieves the goal of winding the fishing objects. Because the outer-layer nets have larger mesh sizes, small individual fish stocks can pass through meshes to escape, so the utility model has strong fishing selectivity and is suitable for fishing fish resources in large individual cay water.
Description
Technical field
The utility model relates to a kind of fishing gear, relates in particular to a kind of trammel net etting that is applicable to the coral reef water operation.
Background technology
Coral reef water is a kind of unique ecosystem, and biological species is many, fishery resources are abundant.Reef fish that assemble in the district mostly are the high-quality fish, the economic worth height, but owing to the life-span is long.In case resource is destroyed, will be difficult to recover.Therefore, protect and rationally utilize the coral fishes resource, to keeping reef district's ecosystem balance and fisheries sustainable development significant.The west at China South Sea, in, the Nansha Islands etc. just belong to this class coral reef fishing ground, the reef beach is numerous, the marine site is wide, aboundresources.At reef dish shallow water area, development and use early are mainly diving operation, poor stability, and production efficiency is low, and the fishery resources major part is utilized at present; Beyond the reef dish than deepwater field (in about 300 meters), utilization rate is lower at present, is mainly gill net and fishing tackle operation.Because fishing tackle operation catching rate is not high, economic benefit is not remarkable, fishing boat reduces at present, and what have transfers the gill net operation to.The gill net operation of development coral reef water not only can improve the fishery harvesting quality, increase economic benefit, can also alleviate the inshore fishing resource pressure, thereby promotes the coastal waters to change the line of production to be transferred to civilian work effective enforcement of engineering.
The utility model content
The purpose of this utility model is to provide a kind of can improve the fishery harvesting quality, can protect and rationally utilize the trammel net etting of the various high-quality stocks of fish of coral reef water again.
The purpose of this utility model is achieved by the following technical programs:
A kind of trammel net etting that is applicable to the coral reef water operation that the utility model provides, comprise two outer ettings and be sandwiched in the middle of an internal layer etting, the size of mesh of outer etting is 4～6 times of size of mesh of internal layer etting; The side of three-layer network clothing is entangled to each other, and the upper limb of three-layer network clothing is connected with headline sheepshank assembling, evenly assembles Pressure-resistant float on raising to the higher plane of principle; The lower edge of three-layer network clothing is connected with infraclass sheepshank assembling, evenly assembles sinker on infraclass.
When underwater work, in the impact of current or have under the catches situation, the internal layer etting enters outer etting and forms mesh bag, thereby reaches the purpose that enwinds fishery harvesting.Because outer etting size of mesh is bigger, little individual fish can pass escape from the centre, thereby the fishing selectivity is stronger, are suitable for fishing for the stock of fish in the individual bigger coral reef water.
The termination of described headline, infraclass is provided with draw ring, is convenient to reel net.
Two outer etting structures of described trammel net etting are identical, and size of mesh all is not less than 800mm, and the size of mesh of internal layer etting is not less than 200mm.
The diameter of two used nylon monofilaments of outer etting of described trammel net etting is not less than 0.8mm, and the used nylon monofilament diameter of internal layer etting is not less than 0.4mm.
The utlity model has following beneficial effect:
(1) the internal layer etting adopts the large mesh design, can improve release rate and the fishing sampling of juvenile fish, thereby realizing catching puts for a short time greatly, reaches the purpose of protection coral reef water juvenile fish resource.
(2) etting material therefor intensity is big, is not easy fracture, colludes the economic loss that the hanging breaking net causes thereby significantly reduced because of reef.
(3) because this etting is applicable to the coral reef water operation, add that the fishing method is proper, thereby the production efficiency height; Fishery harvesting is based on the shark (be mainly used in and make shark's fin) of big-and-middle individuality and the coral fishes of high-quality, economic worth height, thereby remarkable benefit; Low, the small investment of etting cost, thus lucrative.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is done further and described in detail;
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Figure 1 shows that a kind of embodiment that is applicable to the trammel net etting of coral reef water operation of the present utility model, monolithic trammel net etting is a rectangle, and three ettings are superimposed, and are divided into outer etting 1, internal layer etting 2 and outer etting 3.Outer etting 1 is identical with outer etting 3 structures.The side of three-layer network clothing is entangled to each other, and three upper limbs of throwing the net clothing are connected with the 4 sheepshanks assembling of raising to the higher plane of principle, and evenly assemble Pressure-resistant float 5 on headline 4.Three lower edges of throwing the net clothing are connected with infraclass 6 sheepshanks assembling, and evenly assemble sinker 7 on infraclass 6.The homonymy termination of headline, infraclass is connected with draw ring 8, is convenient to reel net.
Inside and outside etting material is nylon monofilament, forms the net sheet through the two fast knots of artificial woollen yarn knitting.The used nylon monofilament of outer etting, its diameter all is not less than 0.8mm, and the diameter of the used nylon monofilament of internal layer etting is not less than 0.4mm.The netting twine material fracture strength of this class specification is big, even tangle the coral reef during operation, also can not cause scoring a goal, thereby be applicable to the waters operation of coral reef dish.The size of mesh of two outer ettings all is not less than 800mm, and the size of mesh of internal layer etting is not less than 200mm.
Adopt three different size of mesh ettings to combine, make the whole clothing of throwing the net form a plurality of mesh bags, live fishery harvesting, be suitable for coral reef water and fish for big individual high-quality Chelonian thereby twine network at flow action or when fishery harvesting is arranged.By the inner layer net clothing of doing this trammel net etting bigger size of mesh is arranged, can discharge the juvenile fish of the various fish in coral reef district, the fishing selectivity is strong, can realize catching putting for a short time greatly, helps protection and rationally utilizes all kinds of fishery resources in coral reef district.
Adopt short row to put net during operation, promptly only form row by 3-4 net, each row is put net radially with reef dish vertical direction, not only can avoid netting gear lash when flow action to cause damage on the reef dish, can also improve the capture rate to the fish that move about in the deep water coral reef water.
Claims (4)
1, a kind of trammel net etting that is applicable to the coral reef water operation is characterized in that: comprise two outer ettings and be sandwiched in the middle of an internal layer etting, the size of mesh of outer etting is 4～6 times of size of mesh of internal layer etting; The side of three-layer network clothing is entangled to each other, and the upper limb of three-layer network clothing is connected with headline sheepshank assembling, evenly assembles Pressure-resistant float on raising to the higher plane of principle; The lower edge of three-layer network clothing is connected with infraclass sheepshank assembling, evenly assembles sinker on infraclass.
2, the trammel net etting that is applicable to the coral reef water operation according to claim 1, it is characterized in that: the termination of described headline, infraclass is provided with draw ring.
3, the trammel net etting that is applicable to the coral reef water operation according to claim 1, it is characterized in that: two outer etting structures of described trammel net etting are identical, size of mesh all is not less than 800mm, and the size of mesh of internal layer etting is not less than 200mm.
4, the trammel net etting that is applicable to the coral reef water operation according to claim 1, it is characterized in that: the diameter of two used nylon monofilaments of outer etting of described trammel net etting is not less than 0.8mm, and the used nylon monofilament of internal layer etting is not less than 0.4mm from the footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066213 CN2829358Y (en) | 2005-10-25 | 2005-10-25 | Triple gill net suitable for working in cay waters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066213 CN2829358Y (en) | 2005-10-25 | 2005-10-25 | Triple gill net suitable for working in cay waters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829358Y true CN2829358Y (en) | 2006-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066213 Expired - Fee Related CN2829358Y (en) | 2005-10-25 | 2005-10-25 | Triple gill net suitable for working in cay waters |
Country Status (1)
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| CN (1) | CN2829358Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444665A (en) * | 2013-09-17 | 2013-12-18 | 安徽省安国渔具有限公司 | Fishing net |
| CN106332849A (en) * | 2016-11-08 | 2017-01-18 | 山东好运通网具科技股份有限公司 | Purseseine encircling component and tie method thereof |
| CN109730041A (en) * | 2019-03-10 | 2019-05-10 | 杭州林迪德瑞科技有限公司 | Intelligent trawling gear and method |
| CN112931436A (en) * | 2021-03-05 | 2021-06-11 | 浙江省海洋水产研究所 | Soft coral collecting device and method |
| CN113785800A (en) * | 2021-10-18 | 2021-12-14 | 中国科学院水生生物研究所 | Three-layer multi-mesh composite gill net device for investigating reservoir fish resources |
| CN117437733A (en) * | 2023-12-20 | 2024-01-23 | 云南保利天同水下装备科技有限公司 | Detection net and manufacturing method thereof |
-
2005
- 2005-10-25 CN CN 200520066213 patent/CN2829358Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444665A (en) * | 2013-09-17 | 2013-12-18 | 安徽省安国渔具有限公司 | Fishing net |
| CN103444665B (en) * | 2013-09-17 | 2015-01-21 | 安徽省安国渔具有限公司 | Fishing net |
| CN106332849A (en) * | 2016-11-08 | 2017-01-18 | 山东好运通网具科技股份有限公司 | Purseseine encircling component and tie method thereof |
| CN109730041A (en) * | 2019-03-10 | 2019-05-10 | 杭州林迪德瑞科技有限公司 | Intelligent trawling gear and method |
| CN109730041B (en) * | 2019-03-10 | 2021-06-15 | 杭州林迪德瑞科技有限公司 | Intelligent trawl apparatus and method |
| CN112931436A (en) * | 2021-03-05 | 2021-06-11 | 浙江省海洋水产研究所 | Soft coral collecting device and method |
| CN112931436B (en) * | 2021-03-05 | 2022-03-25 | 浙江省海洋水产研究所 | Soft coral collecting device and method |
| CN113785800A (en) * | 2021-10-18 | 2021-12-14 | 中国科学院水生生物研究所 | Three-layer multi-mesh composite gill net device for investigating reservoir fish resources |
| CN117437733A (en) * | 2023-12-20 | 2024-01-23 | 云南保利天同水下装备科技有限公司 | Detection net and manufacturing method thereof |
| CN117437733B (en) * | 2023-12-20 | 2024-06-04 | 云南保利天同水下装备科技有限公司 | Detection net and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |