CN1714633A - Fishing net for dra net fishing - Google Patents
Fishing net for dra net fishing Download PDFInfo
- Publication number
- CN1714633A CN1714633A CN 200410078719 CN200410078719A CN1714633A CN 1714633 A CN1714633 A CN 1714633A CN 200410078719 CN200410078719 CN 200410078719 CN 200410078719 A CN200410078719 A CN 200410078719A CN 1714633 A CN1714633 A CN 1714633A
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- net
- fishing
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- dra
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Abstract
The present invention relates to a fishing net with a novel structure that is used for trawling, which can prevent the mixing fishing of the different fishes and the fish fries so as to effectively fish the target fish and shellfish and to prevent the loss of the fishing resource, thereby favoring the sustainable development of the fishery. The fishing net that is used for the trawling of the fishes and the shellfishes, which live in the sea and close to the bottom of the sea is characterized in that the fishing net comprises a bag (A) that includes a front part (A1) of a bushing middle-sized net-hole net body, a middle part (A2) of a small net-hole body that is extent from the front part (A1) and a rear part of a sheath small net-hole bag end that is continuously extent from the middle part as well as a pair of fin parts (B) that are extent in front of the bag (A); a window net (5) of a large net-hole net is arranged at the top of the middle part, and the rear part is applied to accumulating the fishes and the shellfishes.
Description
Technical field
The present invention relates to fishing net for dra net fishing, more particularly, relate to the improvement of fishing net for dra net fishing, it can realize selectable fishing, so that by suppressing the indiscriminate seizure of fry is promoted the production again of fishery resources.
Background technology
The mixed of each fingerling that may cause comprising non-target fish and fry by traditional fishing's operation of the system of dragging a net in fishing catches.A simultaneous problem is that refuse, rubbish etc. are mixed in together with the fish that catches, and need to remove unwanted fish and refuse, rubbish etc. inevitably aboard ship and it is abandoned back marine work.But according to this fishing system, the object amount of throwing away is often greater than fishing output.Therefore, compare with abandoning work, the ratio of fishing output is very low, thereby makes entire job uneconomical.In addition, may be very serious for the damage of the health that throws back marine fish, it is believed that it is to deviate from mutually with the protection of fishery resources and the thought of breed.
Recently, under these circumstances, recognize gradually that employing can only catch adult fish and the fishing net that discharges the fishing net of fry or can only catch targeted species selectively helps to prevent the minimizing of fishery resources, therefore, existing people has proposed various fishing nets.
Summary of the invention
The novel structure that the purpose of this invention is to provide a kind of fishing net for dra net fishing, it can avoid catching kind different with targeted species and fry, so that realize, thereby help to keep the ecosystem and sustainable development of fishery in the seawater to effectively the catching of the fish of targeted species.
For achieving the above object, the invention provides a kind of be used to catch wave live under the sea near the fish of top, seabed and the fishing net for dra net fishing of shellfish, it comprises: the rear portion (A3) of the little mesh bag of the sheath shape end that the middle part (A2) of the little mesh dictyosome of funnel-form that the front portion (A1), that a bag (A), this bag comprise a cover tubular medium mesh dictyosome extends back continuously from described front portion (A1) and extend back continuously from described middle part (A2); And a pair of alar part (B) that extends in described bag (A) the place ahead; Described middle part is provided with the window net (5) at the big mesh at its top, and described rear portion is suitable for accumulating fish and shellfish.
Preferably, described middle part (A2) forms an opening (8) in its bottom, and described fishing net for dra net fishing also comprises a sheath shape lower wire (9) that is connected in described opening, and described sheath shape lower wire is made of the net of medium mesh and is suitable for holding foreign material.
Though the similar part of the fishing net for dra net fishing of fishing net for dra net fishing of the present invention and system is, the front portion of bag is the cover tubular, the middle part that extends back continuously from described front portion is made of the little mesh dictyosome of funnel-form, the rear end is made of the sheath shape bag end that is used to accumulate fish and shellfish, extend back continuously from the middle part, but the invention is characterized in, on the extreme higher position of the funnel-form dictyosome in the middle of the window net of a big mesh is arranged on.Therefore, the most of water that flows in the fishing net that the seabed drags can flow out from the window net, and small fish such as fry can pass fishing net with the water of the net that flows through big mesh and escape.On the other hand, big fish mainly is an adult fish, and is big even can not pass big mesh fishnet and escape, thereby is trapped in the bag end at rear portion.Therefore, fishing efficient is improved, and has avoided the minimizing of following fishing output simultaneously.
In addition, opening is preferably disposed on the bottom of the funnel-form dictyosome at bag middle part, and the front end of net of bottom that is used to hold the sheath shape of foreign material is connected in described opening.Therefore, live in fish and shellfish on water-bed portion and the earth: shell, starfish and refuse, rubbish etc. are at first gone into fishing net by shovel together.The foreign material of only doing to roll are collected in the sheath shape dictyosome of bottom, and the fish that attempt oneself is escaped does not enter the bottom dictyosome, are used to accumulate in the bag of fish but enter its top.Therefore, can avoid the mixed of fish and foreign material to catch, thereby when fishing net is lifted or aboard ship, can not damage fish and shellfish during the sorting catches.Therefore, it is fresh that fish that catches and shellfish can keep, thereby guarantee high commercial value.
Description of drawings
Fig. 1 is the external view that is used to illustrate an example of fishing net for dra net fishing of the present invention; And
Fig. 2 is the external view that is used to illustrate another example of fishing net for dra net fishing of the present invention.
Embodiment
Contrast Fig. 1 describes fishing net for dra net fishing of the present invention below.
In state shown in Figure 1, fishing net for dra net fishing is being dragged along the seabed.Reference numeral 1 expression one bull trawl is dragged guiding principle, and the trawl board 2 that is used to expand fishing net is connected the end of the trawlnet head rope.Be used for strengthening bag A and from its right side/the right side/upper limb of the B of portion of left wing that left front portion extends forward and the string for binding a plait of lower edge 3 and each the right side and the left front end upper and lower portion that are connected in trawl board 2 rear ends of rope 4 down, thereby this fishing net for dra net fishing drags guiding principle by trawlnet and spurs and advance, and the front end of bag A is expanded with the left side to the right simultaneously.
On the other hand, a plurality of string for binding a plait float 3a are connected in string for binding a plait 3 on appropriate intervals, and perhaps a plurality of weights are connected in rope 4 down on proper spacing.Therefore, the preceding upper limb open bag A that makes progress is pulled by described two ropes when the bag lower edge keeps contacting with the seabed and advances.Can be provided with one be shorter than down rope 4 slightly drag end chain or rope, it contact slightly, so that the fish on the seabed is lived in seizure before the preceding lower edge of bag A with the seabed.
Fishing net of the present invention is a fishing net for dra net fishing, it has and the essentially identical occupation mode of traditional fishing net for dra net fishing, and its bag A comprises the anterior A1, a middle part A2 and the rear portion A3 who is made of the bag end of the little mesh of minor diameter sheath shape (as the mesh of 4-5cm) who is made of the dictyosome of the little mesh of funnel-form (as the mesh of 4-8cm) that are made of the dictyosome of the major diameter cover medium mesh of tubular (as the mesh of 8-12cm).Should be noted in the discussion above that described part A 1, A2 and A3 are together in series, and that is to say that described middle part extends back continuously from described front portion, and described rear portion extend back continuously from described middle part.This fishing net is characterised in that: a window net 5 that is made of the net of big mesh (as the mesh of 10-15cm) is arranged on the top of middle part 2 near rear portion A3.
When the fishing net for dra net fishing of the present invention with this structure was put into seawater and spurred by the trawlnet head rope, the weight that drags end chain 4a or be connected in down rope 4 reached the seabed, and string for binding a plait 3 is connected upwards pulling of float 3a thereon.Then, if this fishing net is advanced forward, under the effect of the power of current, trawl board 2 moves on the direction on right and a left side respectively, thereby alar part B is expanded with the left side to the right.Therefore, the front end of bag A opens, and makes water can flow into a bag A.
Therefore, the fish and the shellfish of on the seabed, moving or having a rest, and catch near bag A that quilt such as fish that move about in the seabed are advanced.Captive like this fish moves to middle part A2 from anterior A1 under the effect of the power of current.Because the diameter of funnel-form dictyosome 6 reduces, the motion of the fish that attempts an escape the fierceness that becomes.Then, because the window net that big mesh net constitutes makes water be easy to overflow, thereby little fish such as fry can flee from a bag A by the net of the big mesh of window net 5, and high adult fish of commercial value and size big can not be by big mesh the shrimp of net be collected in the little mesh bag end 7 of rear portion A3.Therefore, the size of the fry that must bleed off according to size and the preparation of target fish is suitably selected the mesh size of funnel-form dictyosome 6 and bag end 7 and the mesh size of window net 5.
If the fishing net for dra net fishing of the present invention with suitably design comes captured target fish and shellfish; so; not only can effectively save fishing net and move the work of sorting catches in back on the fishing boat to; and can significantly reduce the damage to fry that may influence following fishing output; thereby cause the increase of fishery income, protected fishery resources simultaneously.
But another problem of existence is that if want to catch near holobenthic fish and shellfish, earth, shell, starfish, sea anemone and refuse are easy in fish is collected in bag end 7.Therefore, existing problem is that fish that causes like this and the damage of shellfish danger and the work of sorting catches aboard ship just may increase.
According to fishing net of the present invention, as shown in Figure 2, on the bottom of the funnel-form dictyosome 6 of the middle part A2 that constitutes bag A, be preferably formed as an opening 8, and the openend of the sheath shape lower wire 9 that forms of the net of medium mesh preferably is connected in above-mentioned opening 8.Therefore, the foreign material such as refuse, the rubbish etc. that are scooped up by the fore-end of fishing net, be introduced into bag A are accommodated in the lower wire 9.
Though preparing is that the 9 coastal ends of sheath shape lower wire are dragged, and foreign material are taken in it,, do not recommend to collect refuse, rubbish of fritter etc., therefore, preferably according to kind that is scattered in the foreign material on the seabed and distribution, the mesh size of the net that constitutes lower wire 9 is carried out suitable selection.In addition, the back bottom of lower wire 9 preferably is provided with the protection gauze that is made of wear-resisting dictyosome such as wire netting, and preceding bottom also preferably is provided with weight to prevent that it aweigh.
By not only being provided for accumulating the bag end 7 of the fish that catches and shellfish, and in its lower section lower wire 9 is provided, make foreign material that the leading section of bedding bag A scoops up such as the relative heavier and big material in refuse, the rubbish etc. roll and be collected in the lower wire 9 to the bottom of bag A.But, fish that can not escape by the mesh of the net that moves and shrimp since its own action be trapped in the bag end 7, thereby be hunted down, the while can prevent that foreign material are mixed in wherein.Therefore, when moving to fishing net for dra net fishing of the present invention on the ship by coiling the trawlnet head rope 1, suppressed catching of low fry of commercial value and small fish, the shrimp of high big fish of commercial value and mesh that can not be by net is then caught in large quantities and is separated with foreign material.
Use fishing net for dra net fishing of the present invention, can avoid to cause the indiscriminate seizure to juvenile fish of fishery resources loss, can realize simultaneously working on the effective ship to the high big fish of commercial value.In addition, can simplify assorting room, reduce situation simultaneously the major injury of the fish that catches, thereby can be to the fresh fish of market supply.
Fishing net for dra net fishing of the present invention is in order to catch near holobenthic fishes and shrimps, prevents that simultaneously the fishery resources loss from inventing.Fishing net for dra net fishing of the present invention is not limited to any specific fish or shellfish, and in use to the marine site that can use fishing net for dra net fishing or waters without any restriction.
Claims (4)
1. one kind is used to fish for and lives under the sea near the fish of top, seabed and the fishing net for dra net fishing of shellfish, and it comprises:
The rear portion (A3) of the little mesh bag of the sheath shape end that the middle part (A2) of the little mesh dictyosome of funnel-form that the front portion (A1), that a bag (A), this bag comprise a cover tubular medium mesh dictyosome extends back continuously from described front portion (A1) and extend back continuously from described middle part (A2); And
The a pair of alar part (B) that extends in described bag (A) the place ahead; Described middle part is provided with the window net (5) at the big mesh at its top, and described rear portion is suitable for accumulating fish and shellfish.
2. fishing net for dra net fishing as claimed in claim 1, it is characterized in that: described middle part (A2) forms an opening (8) in its bottom, described fishing net for dra net fishing also comprises a sheath shape lower wire (9) that is connected in described opening, and described sheath shape lower wire is made of the net of medium mesh and is suitable for holding foreign material.
3. fishing net for dra net fishing as claimed in claim 2 is characterized in that: described sheath shape lower wire (9) is at the latter half of stiffener that is provided with wear-resisting dictyosome (9a) of its underpart.
4. as claim 2 or 3 described fishing net for dra net fishing, it is characterized in that: the first half of described sheath shape lower wire (9) in the bottom is provided with weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP003875/2004 | 2004-07-01 | ||
| JP2004003875U JP3106312U (en) | 2004-07-01 | 2004-07-01 | Fishing net for bottom fishing. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1714633A true CN1714633A (en) | 2006-01-04 |
| CN100455189C CN100455189C (en) | 2009-01-28 |
Family
ID=35821057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100787193A Expired - Fee Related CN100455189C (en) | 2004-07-01 | 2004-09-17 | Fishing net for dra net fishing |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3106312U (en) |
| CN (1) | CN100455189C (en) |
| HK (1) | HK1086450A1 (en) |
| MY (1) | MY138585A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410786A (en) * | 2011-11-02 | 2012-04-11 | 中国船舶重工集团公司第七一〇研究所 | Towing net bag type device for intercepting suspended matter in water for single ship |
| CN102845370A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Method for scooping fish according to weight in fishpond through attracting fish by lamp light |
| CN102845372A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Device for scooping fish according to weight in fishpond through attracting fish by lamp light |
| CN103039407A (en) * | 2012-12-31 | 2013-04-17 | 河北省海洋与水产科学研究院 | One-boat beam haul-bag single-sac bottom trawl for investigating and sampling marine demersal creatures |
| CN103039408A (en) * | 2012-12-31 | 2013-04-17 | 河北省海洋与水产科学研究院 | Floating trawl for investigating macroplankton in upper middle water body of inland large water surface |
| CN111526717A (en) * | 2017-12-27 | 2020-08-11 | 克季公司 | Net assembly for seine fishery |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2590937Y2 (en) * | 1992-03-05 | 1999-02-24 | 牧雄 中津原 | Tie with tie closure |
| CN102599118A (en) * | 2012-04-11 | 2012-07-25 | 宁德市富发水产有限公司 | Method for fishing artificially cultured copepods in seawater pond |
| CN103478088B (en) * | 2013-09-09 | 2015-07-01 | 浙江海洋学院 | Dragnet with a plurality of serial bags and fishing method using dragnet |
| JP2015216910A (en) * | 2014-05-21 | 2015-12-07 | 一般財団法人電力中央研究所 | Collection method, and collection device |
| CN107128449A (en) * | 2017-05-04 | 2017-09-05 | 上海为然环保科技有限公司 | A kind of intelligent environment protection device for cleaning dirt on surface of water |
| CN114041448A (en) * | 2021-09-17 | 2022-02-15 | 河北省地矿局第八地质大队(河北省海洋地质资源调查中心) | Integrated benthos trawl |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225134Y (en) * | 1995-04-27 | 1996-04-24 | 邹永华 | Trawlnet |
-
2004
- 2004-07-01 JP JP2004003875U patent/JP3106312U/en not_active Expired - Fee Related
- 2004-09-14 MY MYPI20043716 patent/MY138585A/en unknown
- 2004-09-17 CN CNB2004100787193A patent/CN100455189C/en not_active Expired - Fee Related
-
2006
- 2006-06-07 HK HK06106507.7A patent/HK1086450A1/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410786A (en) * | 2011-11-02 | 2012-04-11 | 中国船舶重工集团公司第七一〇研究所 | Towing net bag type device for intercepting suspended matter in water for single ship |
| CN102845370A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Method for scooping fish according to weight in fishpond through attracting fish by lamp light |
| CN102845372A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Device for scooping fish according to weight in fishpond through attracting fish by lamp light |
| CN103039407A (en) * | 2012-12-31 | 2013-04-17 | 河北省海洋与水产科学研究院 | One-boat beam haul-bag single-sac bottom trawl for investigating and sampling marine demersal creatures |
| CN103039408A (en) * | 2012-12-31 | 2013-04-17 | 河北省海洋与水产科学研究院 | Floating trawl for investigating macroplankton in upper middle water body of inland large water surface |
| CN103039408B (en) * | 2012-12-31 | 2014-09-17 | 河北省海洋与水产科学研究院 | Floating trawl for investigating macroplankton in upper middle water body of inland large water surface |
| CN111526717A (en) * | 2017-12-27 | 2020-08-11 | 克季公司 | Net assembly for seine fishery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100455189C (en) | 2009-01-28 |
| JP3106312U (en) | 2004-12-16 |
| MY138585A (en) | 2009-07-31 |
| HK1086450A1 (en) | 2006-09-22 |
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