CN106937627A - A kind of Japanese eel seedling finishing device and application method - Google Patents
A kind of Japanese eel seedling finishing device and application method Download PDFInfo
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- CN106937627A CN106937627A CN201710232449.4A CN201710232449A CN106937627A CN 106937627 A CN106937627 A CN 106937627A CN 201710232449 A CN201710232449 A CN 201710232449A CN 106937627 A CN106937627 A CN 106937627A
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- network interface
- dictyosome
- collection net
- eel seedling
- mesh
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Abstract
The present invention proposes a kind of Japanese eel seedling finishing device, collection net including fixed pile and between fixed pile, the small big then network interface of preceding network interface of the collection net is in cone barrel, the fixed pile lower end is vertically inserted in the silt that common eel seedling is fished for a little, the preceding network interface of collection net shapes provided with thick nylon fake for preceding network interface, the fixed pile upper end is connected with the thick nylon fake, and the rear network interface for gathering net is provided with and tightens rope, for being closed up in time to rear network interface；The collection net includes the dictyosome for three sections of different mesh sizes being sequentially connected, in addition, collection is also associated with flotation gear on the net.The inventive method solves traditional netting gear and uses uniform sizes, the problem of greatly destruction is caused to wild Japanese eel seedling resource, simultaneously reduce eel seedling collect during the death rate and fisherman physical labor intensity the problems such as, the present invention is a kind of Japanese eel seedling finishing device simple in construction, with low cost, can be suitably used for different fishing sites.
Description
Technical field
The invention belongs to technical field of fishery, more particularly to a kind of Japanese eel seedling finishing device.
Background technology
Japanese eel delicious meat, is of high nutritive value, and have the title of " ginseng in water ", it has also become global cultivation fish
Class.But because its artificial propagation techniques is not yet solved so far, therefore cultivation individual is still needed by fishing for fish wild seed, in annual day
The Hekou Area of this common eel seedling anadromous migration, " predation " formula fishing operation mould that China various regions coastal fisherman " one " word is arranged
Formula so that the quantity that eel seedling enters inland river is fewer and feweri.If things go on like this, the border that will cause to be difficult to recover to Japanese eel resource
Ground.
Japanese eel seedling individual is elongated, and body diameter is usually no more than 2mm, and fisherman is mostly using the net of closeer mesh
Tool, has reached and has captured seedling to greatest extent, therefore caused very major injury to wild fishery resources.Due at present fish for or according to
By traditional manual labor operation, and catch seedling person is generally old fisherman, mesh is close, water outlet is slow, also very laborious during operation.Simultaneously
Because mesh is close, impurity is not easy to filter out so that mix many algae and jellyfish in eel seedling, and water body glues very much during collection
Thick, dissolved oxygen reduction, eel seedling is easily dead.Therefore how to solve the protection of Japanese eel wild resource and meet eel industry hair with collecting
Contradiction between the eel seedling of exhibition, as wild fishery resources development urgent problem now.Improve simultaneously and fish for eel seedling
Survival rate and reduction manual labor, are also the technical barrier that fisherman is badly in need of solving always.
The content of the invention
In view of this, the purpose of the present invention is exactly to propose a kind of Japanese eel seedling finishing device, and it, which is specifically divided into, has
The structure division of three different mesh sizes, compared with traditional netting gear using unified mesh, both can guarantee that a part of wild
Resource can succeed anadromous migration, protect wild resource, but can Quick water exit, filter out algae, jellyfish in water body etc. miscellaneous
Matter, effectively captures seedling, in addition can also reduce the operation intensity of fisherman.
In order to solve the above technical problems, the present invention is achieved using following technical scheme：
A kind of Japanese eel seedling finishing device, including fixed pile and the collection net between fixed pile, it is described
The big then network interface of preceding network interface for gathering net is small in cone barrel, and the fixed pile lower end is vertically inserted in common eel seedling and fished for a little
In silt, the preceding network interface of collection net shapes provided with thick nylon fake for preceding network interface, the fixed pile upper end and the thick Buddhist nun
Imperial fake connection, and the rear network interface for gathering net is provided with and tightens rope, for being closed up in time to rear network interface；It is described collection net include according to
First paragraph dictyosome, second segment dictyosome and the 3rd section of dictyosome of secondary connection, the first paragraph dictyosome, second segment dictyosome and the 3rd section of net
Mesh on body progressively increases, wherein, first paragraph dictyosome and second segment dictyosome are to entering impurity and part common eel in collection net
Seedling is filtered, and the 3rd section of dictyosome is collected to entering the common eel seedling not filtered out in collection net, in addition, collection net
Preceding network interface exaggerated and second segment dictyosome and the 3rd section of dictyosome junction be provided with flotation gear.
Preferably, the flotation gear includes Nylon Bag and the spherical foamed plastics being wrapped in Nylon Bag, floating
The exaggerated connection that device passes through nylon rope and the preceding network interface of collection net.
Preferably, the diameter 40cm of the spherical foamed plastics, the mesh diameter of the Nylon Bag is 4cm.
Preferably, the preceding network interface ovalize of the collection net, and the thick nylon of the distal end of preceding network interface two of collection net
Fake respectively connects a fixed pile by nylon rope.
Preferably, the rear network interface of the collection net is rounded.
Preferably, a diameter of 40cm of the fixed pile, is highly 15 meters.
Preferably, the mesh of the first paragraph dictyosome is 4 mesh, and the mesh of the second segment dictyosome is 16 mesh, described
The mesh of 3rd section of dictyosome is 60 mesh.
Preferably, the distal end distance of the preceding network interface is 36m, and near-end distance is 7m, and the rear network interface is a diameter of
20cm, the length of whole collection net is 55m.
Preferably, a diameter of 2cm of rope of the thick nylon fake, the rope that tightens is nylon rope thick 8mm.
A kind of application method of Japanese eel seedling finishing device, comprises the following steps：
(1) mouth of the river that selection fluctuation is damp substantially, floating object is few is fished for a little as common eel seedling；
(2) in the 3-4 points in afternoon of annual first half of the month in Winter Solstice, 15 meters high by two before tidewater starts to rise, diameter 40cm
Fixation pile squeeze into selected common eel seedling side by side and fish for a little, and make the preceding network interface of the gap ratio collection net of two fixed piles
Distal end distance 5-6m；By flotation gear with nylon rope tie up collection net preceding network interface it is exaggerated on and second segment dictyosome and
The junction of 3rd section of dictyosome, while the thick nylon fake that will gather the distal end of preceding network interface two of net with nylon rope is connected to two
Root is fixed on pile, is then adjusted the length of the nylon rope between the preceding network interface of fixed pile and collection net, is made before collection net
Network interface just to flood tide direction of tide and exaggerated just concordant with the water surface is swum on the water surface；
(3) after when flood tide 2 is small, the rear network interface of collection net is tightened with the thick nylon ropes of 8mm；
(4) by-pass filtration is proceeded by when eel seedling enters the preceding network interface of collection net with trend, eel seedling first passes through first
Section dictyosome, the mesh of first paragraph dictyosome is larger, therefore water outlet is fast, while mesh can filter out a part of eel seedling, is allowed to normal
Migration carries out growing and fattening, and the mesh of first paragraph dictyosome can filter out macro and small jellyfish in water body；
(5) when eel seedling continues to enter second segment dictyosome progress secondary filtration with current, due to the mesh of second segment dictyosome
Reduce, for filtering out Microalgae in water body, concentrate eel seedling while can continue to filter out a part of water；
(6) when eel seedling enters the 3rd section of dictyosome, the mesh of the 3rd section of dictyosome is smaller and filters out a part of water by eel
Seedling is further concentrated；
(7) when start at ebb tide, since second segment dictyosome and the flotation gear of the junction of the 3rd section of dictyosome, by the 3rd
Section dictyosome is integrally lifted, and network interface tightens rope after opening, water body and eel seedling are poured into plastic barrel together effectively collected.
Compared with prior art, the device have the advantages that being：The inventive method solves traditional netting gear using system
One size, the problem of greatly destruction is caused to wild Japanese eel seedling resource, while during reducing the collection of eel seedling
The problems such as physical labor intensity of the death rate and fisherman, the present invention is that one kind is simple in construction, with low cost, can be suitably used for difference
The Japanese eel seedling finishing device of fishing site.
Brief description of the drawings
Fig. 1 is to gather the structural representation of net in the preferred embodiment of the present invention；
Fig. 2 is the structural representation of finishing device in the preferred embodiment of the present invention；
Fig. 3 is fishing for an effect diagram set for finishing device in the preferred embodiment of the present invention.
Embodiment
To allow those skilled in the art to become apparent from getting information about the present invention, below in conjunction with accompanying drawing, to the present invention
It is further described.
If Fig. 1-3 is the preferred embodiments of the present invention.
A kind of Japanese eel seedling finishing device, including fixed pile 1 and the collection net 2 between fixed pile 1, are adopted
The big then network interface 202 of preceding network interface 201 for collecting net 2 is small in cone barrel, and the fixed lower end of pile 1 is vertically inserted in common eel seedling and fished for a little
Silt in, collection net 2 preceding network interface 201 shaped provided with thick nylon fake 203 for preceding network interface 201, fixation the upper end of pile 1 and
Thick nylon fake 203 is connected, and the rear network interface 202 for gathering net 2 is provided with and tightens rope 204, for being received in time to rear network interface 202
Mouthful；Collection net 2 includes the first paragraph dictyosome 21, second segment dictyosome 22 and the 3rd section of dictyosome 23 that are sequentially connected, first paragraph dictyosome 21,
Mesh on second segment dictyosome 22 and the 3rd section of dictyosome 23 progressively increases, and specially the mesh of first paragraph dictyosome 21 is 4 mesh, this section
The mesh size of dictyosome is 4.75mm, and the mesh of second segment dictyosome 22 is 16 mesh, and the mesh size of this section of dictyosome is 1.18mm, the
The mesh of three sections of dictyosomes 23 is 60 mesh, and the mesh size of this section of dictyosome is 0.25mm, wherein, first paragraph dictyosome 21 and second segment net
The impurity and part common eel seedling that 22 pairs of body enters in collection net 2 are filtered, and the 3rd section of 23 pairs of dictyosome enters in collection net 2
The common eel seedling not filtered out is collected, in addition, the exaggerated (not shown) and second of the preceding network interface 201 of collection net 2
The junction of section dictyosome 22 and the 3rd section of dictyosome 23 is provided with flotation gear 3, and flotation gear 3 includes Nylon Bag and is wrapped in Nylon Bag
Interior spherical foamed plastics, flotation gear 3 passes through the exaggerated connection of nylon rope and the preceding network interface 201 of collection net 2, spherical foam plastic
The diameter 40cm of material, the mesh diameter of Nylon Bag 31 is 4cm.
In the present embodiment, a diameter of 40cm of fixed pile 1, is highly 15 meters, and the length of whole collection net 2 is 55m；Adopt
Collect the ovalize of preceding network interface 201 of net 2, the two distal ends distance of preceding network interface 201 is 36m, and two near-ends distance is 7m, rear network interface diameter
Thick nylon fake 203 for 20cm, and 201 liang of distal ends of preceding network interface of collection net 2 respectively connects a fixed pile by nylon rope
The rope 204 that tightens on 1, a diameter of 2cm of rope of the thick nylon fake 202 on preceding network interface 201, rear network interface 202 is the thick nylon of 8mm
Rope.
The application method of above-mentioned Japanese eel seedling finishing device is as follows：
(1) mouth of the river that selection fluctuation is damp substantially, floating object is few is fished for a little as common eel seedling；
(2) in the 3-4 points in afternoon of annual first half of the month in Winter Solstice, 15 meters high by two before tidewater starts to rise, diameter 40cm
Fixation pile 1 squeeze into selected common eel seedling side by side and fish for a little, and make before the gap ratio collection net 2 of two fixed piles 1
The distal end distance 5-6m of network interface 201；By flotation gear 3 with nylon rope tie up collection net 2 preceding network interface 201 it is exaggerated on and
The junction of second segment dictyosome 22 and the 3rd section of dictyosome 23, while the thick of 201 liang of distal ends of preceding network interface of net 2 will be gathered with nylon rope
Nylon fake 203 is connected on two fixed piles 1, then adjust fixed pile 1 and collection net 2 preceding network interface 201 it
Between nylon rope length, make the preceding network interface 201 of collection net 2 just to flood tide direction of tide and exaggerated just concordant with the water surface float
On the water surface；
(3) after when flood tide 2 is small, the rear network interface 202 of collection net is tightened with the thick nylon ropes of 8mm；
(4) by-pass filtration is proceeded by when eel seedling enters the preceding network interface 201 of collection net 2 with trend, eel seedling is first passed through
First paragraph dictyosome 21, the mesh of first paragraph dictyosome 21 is larger, therefore water outlet is fast, while mesh can filter out a part of eel seedling,
It is allowed to normal migration and carries out growing and fattening, and the mesh of first paragraph dictyosome 21 can filter out macro and miniature water in water body
It is female；
(5) when eel seedling continues to enter the progress secondary filtration of second segment dictyosome 22 with current, due to second segment dictyosome 22
Mesh reduces, for filtering out Microalgae in water body, concentrates eel seedling while can continue to filter out a part of water；
(6) when eel seedling enters the 3rd section of dictyosome 23, the mesh of the 3rd section of dictyosome 23 is smaller and filters out a part of water
Eel seedling is further concentrated；
(7) when starting at ebb tide, since second segment dictyosome 22 and the flotation gear 3 of the junction of the 3rd section of dictyosome 23,
Lift the 3rd section of dictyosome 23 is overall, network interface 202 tightens rope 204 after opening, and water body and eel seedling are poured into plastic barrel together
It is middle effectively to be collected.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of Japanese eel seedling finishing device, it is characterised in that including fixed pile and adopting between fixed pile
Collect net, the small big then network interface of preceding network interface of the collection net is in cone barrel, and the fixed pile lower end is vertically inserted in common eel kind
Seedling is fished in silt a little, and the preceding network interface of collection net shapes provided with thick nylon fake for preceding network interface, the fixed pile upper end
It is connected with the thick nylon fake, and the rear network interface for gathering net is provided with and tightens rope, for being closed up in time to rear network interface；It is described to adopt
Collection net includes first paragraph dictyosome, second segment dictyosome and the 3rd section of dictyosome being sequentially connected, the first paragraph dictyosome, second segment dictyosome
Progressively increase with the mesh on the 3rd section of dictyosome, wherein, first paragraph dictyosome and second segment dictyosome are to entering the impurity in collection net
Filtered with part common eel seedling, the 3rd section of dictyosome is collected to entering the common eel seedling not filtered out in collection net,
In addition, the exaggerated and second segment dictyosome of the preceding network interface of collection net and the junction of the 3rd section of dictyosome are provided with flotation gear.
2. device according to claim 1, it is characterised in that the flotation gear includes Nylon Bag and is wrapped in Nylon Bag
Interior spherical foamed plastics, the exaggerated connection that flotation gear passes through nylon rope and the preceding network interface of collection net.
3. device according to claim 2, it is characterised in that the diameter 40cm of the spherical foamed plastics, the nylon
The mesh diameter of bag is 4cm.
4. device according to claim 1, it is characterised in that the preceding network interface ovalize of the collection net, and collection net
The thick nylon fake of the distal end of preceding network interface two a fixed pile is respectively connected by nylon rope.
5. device according to claim 1, it is characterised in that the rear network interface of the collection net is rounded.
6. device according to claim 1, it is characterised in that a diameter of 40cm of the fixed pile, is highly 15 meters.
7. device according to claim 1, it is characterised in that the mesh of the first paragraph dictyosome is 4 mesh, the second segment
The mesh of dictyosome is 16 mesh, and the mesh of the 3rd section of dictyosome is 60 mesh.
8. device according to claim 4, it is characterised in that the distal end distance of the preceding network interface is 36m, and near-end distance is
7m, the rear a diameter of 20cm of network interface, the length of whole collection net is 55m.
It is described to tighten 9. device according to claim 1, it is characterised in that rope a diameter of 2cm of the thick nylon fake
Restrict as nylon rope thick 8mm.
10. a kind of application method of Japanese eel seedling finishing device, it is characterised in that comprise the following steps：
(1) mouth of the river that selection fluctuation is damp substantially, floating object is few is fished for a little as common eel seedling；
(2) in the 3-4 points in afternoon of annual first half of the month in Winter Solstice, before tidewater starts to rise, 15 meters high by two, diameter 40cm's consolidates
Determine pile and squeeze into selected common eel seedling side by side to fish for a little, and make the gap ratio collection net of two fixed piles preceding network interface it is remote
Hold distance 5-6m；By flotation gear with nylon rope tie up collection net preceding network interface it is exaggerated on and second segment dictyosome and the 3rd
The junction of section dictyosome, while the thick nylon fake for the distal end of preceding network interface two that will gather net with nylon rope is connected to two admittedly
Determine on pile, then adjust the length of the nylon rope between the preceding network interface of fixed pile and collection net, make the preceding network interface of collection net
Just to flood tide direction of tide and exaggerated just concordant with the water surface swim on the water surface；
(3) after when flood tide 2 is small, the rear network interface of collection net is tightened with the thick nylon ropes of 8mm；
(4) by-pass filtration is proceeded by when eel seedling enters the preceding network interface of collection net with trend, eel seedling first passes through first paragraph net
Body, the mesh of first paragraph dictyosome is larger, therefore water outlet is fast, while mesh can filter out a part of eel seedling, is allowed to normal migration
Growing and fattening is carried out, and the mesh of first paragraph dictyosome can filter out macro and small jellyfish in water body；
(5) when eel seedling continues to enter second segment dictyosome progress secondary filtration with current, because the mesh of second segment dictyosome reduces,
For filtering out Microalgae in water body, eel seedling is concentrated while can continue to filter out a part of water；
(6) when eel seedling enters the 3rd section of dictyosome, the mesh of the 3rd section of dictyosome is smaller and filters out a part of water and enters eel seedling
One step is concentrated；
(7) when start at ebb tide, since second segment dictyosome and the flotation gear of the junction of the 3rd section of dictyosome, by the 3rd section of net
Body is integrally lifted, and network interface tightens rope after opening, water body and eel seedling are poured into plastic barrel together effectively collected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232449.4A CN106937627A (en) | 2017-04-11 | 2017-04-11 | A kind of Japanese eel seedling finishing device and application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710232449.4A CN106937627A (en) | 2017-04-11 | 2017-04-11 | A kind of Japanese eel seedling finishing device and application method |
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| CN106937627A true CN106937627A (en) | 2017-07-11 |
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| CN201710232449.4A Pending CN106937627A (en) | 2017-04-11 | 2017-04-11 | A kind of Japanese eel seedling finishing device and application method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107182957A (en) * | 2017-05-11 | 2017-09-22 | 中国水产科学研究院珠江水产研究所 | A kind of Japanese eel seedling finishing device and application method |
| CN109197791A (en) * | 2018-08-13 | 2019-01-15 | 浙江省海洋水产养殖研究所 | A kind of eel seedling set net catching method |
| CN109380185A (en) * | 2018-12-20 | 2019-02-26 | 龙口市温流水育苗养殖有限公司 | A kind of netting gear |
| CN114586748A (en) * | 2022-03-21 | 2022-06-07 | 浙江省海洋水产研究所 | Coilia mystus fry collecting device |
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| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107182957A (en) * | 2017-05-11 | 2017-09-22 | 中国水产科学研究院珠江水产研究所 | A kind of Japanese eel seedling finishing device and application method |
| CN109197791A (en) * | 2018-08-13 | 2019-01-15 | 浙江省海洋水产养殖研究所 | A kind of eel seedling set net catching method |
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Application publication date: 20170711 |