CN108719165A - The apparatus and method of gear selectivity experiment sampling - Google Patents
The apparatus and method of gear selectivity experiment sampling Download PDFInfo
- Publication number
- CN108719165A CN108719165A CN201810407562.6A CN201810407562A CN108719165A CN 108719165 A CN108719165 A CN 108719165A CN 201810407562 A CN201810407562 A CN 201810407562A CN 108719165 A CN108719165 A CN 108719165A
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- fingerling
- screen cylinder
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- screening net
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- 238000005070 sampling Methods 0.000 title claims abstract description 64
- 238000002474 experimental method Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 9
- 238000012216 screening Methods 0.000 claims abstract description 57
- 238000003306 harvesting Methods 0.000 claims abstract description 11
- 238000009966 trimming Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 241000356842 Larimichthys polyactis Species 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
- A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
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- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of devices of gear selectivity experiment sampling, including fingerling screen cylinder, several screening nets being from top to bottom arranged in order in fingerling screen cylinder, fishery harvesting reorganizer inside fingerling screen cylinder is set to the baffle of fingerling screen cylinder bottom and the experiment sampler barrel set on fingerling screen cylinder lower part；Sampler barrel upper opening is tested, experiment sampler barrel is internally provided with several pieces of vertically extending samplings and divides equally box, and the equal upper end opening of box is divided equally in each sampling；The size of mesh of each screening net is from top to bottom sequentially reduced, and each screening net can be opened along fingerling screen cylinder inner wall, and baffle can be extracted out along the bottom surface of fingerling screen cylinder.The present invention have the characteristics that can Effective selection target fingerling, convenient for divide equally sampling, effectively save space.
Description
Technical field
The present invention relates to sea fishery technical field, more particularly, to one kind can Effective selection target fingerling, convenient for dividing equally
The apparatus and method of sampling, effectively section space-efficient fishery selectively experiment sampling.
Background technology
China's marine fishery resources very abundant, feature also determine the diversified fishing style in China, as trawlnet,
It throws the net, numerous operating types such as gill net, but because of the smaller a large amount of juvenile fish of capture of its size of mesh, China's marine fishery resources is caused
Serious destruction.Continuous attention with China to fishery resources also gradually increases the selection Journal of Sex Research of fishing gear, purpose
It is to determine the size of mesh of each fishing gear by experiment, while can also assess production loss situation.Choice tests are usual
Using the suitability for distinguishing size of mesh and fishery resources according to the weight of catches and quantity, while according to main catches
Size come determine adapt to the netting gear minimum size of mesh.
In covering net Choice tests, determine Choice tests success or failure an important factor for be exactly problem of sampling, the ratio of sampling
Example is problem the most cumbersome in Choice tests implementation process, and existing screening plant constantly replaces sieve by manpower
Net, waste of manpower, space resources occupy larger.It is reasonably sampled in Choice tests, for analysis gear selectivity experiment knot
Fruit, the difference assessed between production loss and net time have an impact.Therefore, the present invention is directed to selective problem of sampling, provides one kind
Sampler and sampling method, to provide certain scientific guidance for Choice tests problem of sampling.
Invention content
The goal of the invention of the present invention is in the prior art cannot accurately to sample to overcome, screen and occupied with sampler
Larger space and the deficiency of waste of manpower, provide one kind can Effective selection target fingerling, convenient for divide equally sampling, effectively save it is empty
Between fishery selectively experiment sampling apparatus and method.
To achieve the goals above, the present invention uses following technical scheme：
A kind of device of gear selectivity experiment sampling, including fingerling screen cylinder, are set to several in fingerling screen cylinder
The screening net being from top to bottom arranged in order, the fishery harvesting reorganizer being set to inside fingerling screen cylinder are set to fingerling screen cylinder bottom
Baffle and experiment sampler barrel set on fingerling screen cylinder lower part；Sampler barrel upper opening is tested, if experiment sampler barrel is internally provided with
Box is divided equally in the vertically extending sampling of dry block, and the equal upper end opening of box is divided equally in each sampling；It is each screening net size of mesh by up to
Under be sequentially reduced, each screening net can be opened along fingerling screen cylinder inner wall, and baffle can be extracted out along the bottom surface of fingerling screen cylinder.
The present invention is a kind of device of gear selectivity experiment sampling, and the screening of fingerling is carried out in fingerling screen cylinder；Root
According to the size selection screening net of target fingerling, box is divided equally according to the respectively ratio selection sampling of sampling and is put into experiment sampler barrel
Interior, what experiment sample went out by screening net filtration is exactly the fingerling sample that need to sample, and fishery harvesting reorganizer need to be sampled for smooth
Fingerling sample, in case fingerling sample is unevenly distributed in fingerling screen cylinder and influences to sample；By the gear of fingerling screen cylinder bottom
Plate is extracted out, and the fingerling sample that need to be sampled enters sampling and divides equally in box, then is divided equally the fingerling sample that need to be sampled.
Preferably, each screening net is divided into 4 parts, it is all provided on the side that each section is contacted with fingerling screen cylinder inner wall
There is rotary shaft.Each screening net can be opened along rotary shaft, since each screening net is opened or closed up in cylinder, be saved
Space, and do not need manpower and screening net is subjected to replacement layer by layer.
Preferably, fingerling screen cylinder is in funnelform cylindrical shape, the screening net of fingerling screen cylinder the top is plane
Net is screened, remaining screening net is the screening net of arch；When the screening net of arch is opened, each section of the screening net of arch can paste
Close the inner wall of fingerling screen cylinder.Since fingerling screen cylinder is funnelform cylindrical shape, the side wall of fingerling screen cylinder is arc-shaped,
Therefore the screening net inside fingerling screen cylinder is the arch that middle part raises up, when opening, each section of the screening net of arch
It can be bonded the inner wall of fingerling screen cylinder, save the space inside fingerling screen cylinder.
Preferably, fishery harvesting reorganizer includes oblique runner, oblique runner lower part is equipped with the connection being connect with oblique runner
Bar, connecting rod lower part are equipped with the horizontal-reel being connect with connecting rod；Oblique runner is fixed on by fixed link with horizontal-reel
In fingerling screen cylinder.Oblique driven by rotating wheel connecting rod rotation, connecting rod drive horizontal-reel rotation.
Preferably, oblique runner includes several rotating vanes, horizontal-reel includes several trimming blades, the rotation
Turn the size that the vane size is more than the trimming blade.Rotating vane is used to drive the rotation of entire fishery harvesting reorganizer, arranges
Blade is used to carry out smooth arrangement to the fish sample in fingerling screen cylinder.
Preferably, the cross section that box is divided equally in each sampling is in sector, the structure that box is combined into is divided equally in each sampling
Circular in cross-section.The radius that box is divided equally in each sampling is equal with the radius of experiment sampler barrel.
A method of the device based on gear selectivity experiment sampling includes the following steps：
(7-1) operator selection target fingerling, operator's selection is suitble to the screening net of target fingerling, and is sampled according to experiment
Ratio chooses sampling and divides equally box；
Other screenings are netted and are opened by (7-2) operator, make the inner wall of other screening net fitting fingerling screen cylinders, operator will
Each sampling is divided equally box and is put into experiment sampler barrel；
Experiment sample is poured into fingerling screen cylinder, gravity backspin of the oblique runner in experiment sample by (7-3) operator
Turn, and horizontal-reel is driven to rotate；
Target fingerling in (7-4) experiment sample enters fingerling screen cylinder bottom by screening net, and horizontal-reel rotation is put down
Whole target fingerling；
After (7-5) is screened, operator extracts the baffle of fingerling screen cylinder bottom out, and it is equal that target fingerling falls into each sampling
Divide in box, operator chooses one or more of samplings respectively box according to experiment oversampling ratio, completes sampling.
Therefore, the present invention has the advantages that：The present invention carries out the screening of fingerling in fingerling screen cylinder, according to mesh
Fingerling selection screening net is marked, box is divided equally according to the respectively ratio selection sampling of sampling and is put into experiment sampler barrel, experiment sample
The fingerling sample that need to exactly sample gone out by screening net filtration；Screening net in fingerling screen cylinder is arch, and when opening can
To be close to the inner wall of fingerling screen cylinder, the space in cylinder is saved；Fishery harvesting reorganizer is used for the smooth fingerling sample that need to be sampled, in order to avoid
Fingerling sample is unevenly distributed in fingerling screen cylinder and influences to sample；It is equal according to the corresponding sampling of ratio selection of experiment sampling
Divide box, ensure that the accurate of sampling ratio.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention；
Fig. 2 is a kind of structural schematic diagram of the experiment sampler barrel of the present invention.
In figure：Fingerling screen cylinder 1 screens net 2, fishery harvesting reorganizer 3, and baffle 4 tests sampler barrel 5, and box 6, rotation are divided equally in sampling
Shaft 7, oblique runner 8, connecting rod 9, horizontal-reel 10, fixed link 11, rotating vane 12, trimming blade 13.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment as shown in Figure 1 is a kind of device of gear selectivity experiment sampling, including fingerling screen cylinder 1, is set to
Several screening nets 2 being from top to bottom arranged in order in fingerling screen cylinder, the fishery harvesting reorganizer being set to inside fingerling screen cylinder
3, it is set to the baffle 4 of fingerling screen cylinder bottom and the experiment sampler barrel 5 set on fingerling screen cylinder lower part；It opens on experiment sampler barrel top
Mouthful, experiment sampler barrel is internally provided with several pieces of vertically extending samplings and divides equally box 6, and the equal upper end opening of box is divided equally in each sampling；Respectively
The size of mesh of a screening net is from top to bottom sequentially reduced, and each screening net can be opened along fingerling screen cylinder inner wall, and baffle can
It is extracted out along the bottom surface of fingerling screen cylinder.Each screening net is divided into 4 parts, the side that each section is contacted with fingerling screen cylinder inner wall
On be equipped with rotary shaft 7.Fingerling screen cylinder is in funnelform cylindrical shape, and the screening net of fingerling screen cylinder the top is the sieve of plane
Network selection, remaining screening net are the screening net of arch；When the screening net of arch is opened, each section of the screening net of arch can be bonded
The inner wall of fingerling screen cylinder.Fishery harvesting reorganizer includes oblique runner 8, and oblique runner lower part is equipped with the connection being connect with oblique runner
Bar 9, connecting rod lower part are equipped with the horizontal-reel 10 being connect with connecting rod；Oblique runner is solid by fixed link 11 with horizontal-reel
It is scheduled in fingerling screen cylinder.Oblique runner includes several rotating vanes 12, and horizontal-reel includes several trimming blades 13, institute
The size for stating rotating vane is more than the size of the trimming blade.
As shown in Fig. 2, the cross section that box is divided equally in each sampling is in sector, the structure that box is combined into is divided equally in each sampling
Circular in cross-section.
The method of the device of gear selectivity experiment sampling as shown in Figure 1, includes the following steps：
(7-1) operator selection target fingerling is little yellow croaker, and operator's selection is suitble to the screening net of target fingerling little yellow croaker,
Size of mesh is 60mm, and divides equally 4, box according to the sampling that experiment 1: 4 selection ratio of oversampling ratio is 1/4；
(7-2) operator opens the screening net of other size of meshes, makes the interior of other screening net fitting fingerling screen cylinders
Wall closes up the screening net that size of mesh is 60mm, and for filtering little yellow croaker, each sampling is divided equally box and is put into experiment by operator
In sampler barrel；
Experiment sample is poured into fingerling screen cylinder, gravity backspin of the oblique runner in experiment sample by (7-3) operator
Turn, and horizontal-reel is driven to rotate；
Target fingerling little yellow croaker in (7-4) experiment sample enters fingerling screen cylinder bottom, horizontal-reel by screening net
Rotation, smooth target fingerling little yellow croaker make little yellow croaker uniformly be placed in fingerling screen cylinder bottom；
After (7-5) is screened, operator extracts the baffle of fingerling screen cylinder bottom out, and target fingerling little yellow croaker falls into each
Sampling is divided equally in box, and operator chooses one of sampling according to experiment oversampling ratio and divides equally box, completes sampling.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (7)
1. a kind of device of gear selectivity experiment sampling, characterized in that including fingerling screen cylinder (1), be set to fingerling screen cylinder
Several interior screening nets (2) being from top to bottom arranged in order, the fishery harvesting reorganizer (3) being set to inside fingerling screen cylinder, are set to
The baffle (4) of fingerling screen cylinder bottom and experiment sampler barrel (5) set on fingerling screen cylinder lower part；It opens on experiment sampler barrel top
Mouthful, experiment sampler barrel is internally provided with several vertically extending samplings and divides equally box (6), and the equal upper end opening of box is divided equally in each sampling；
The size of mesh of each screening net is from top to bottom sequentially reduced, and each screening net can be opened along fingerling screen cylinder inner wall, baffle
It can be extracted out along the bottom surface of fingerling screen cylinder.
2. the device of gear selectivity experiment sampling according to claim 1, characterized in that each screening net is divided into
4 parts are equipped with rotary shaft (7) on the side that each section is contacted with fingerling screen cylinder inner wall.
3. the device of gear selectivity experiment sampling according to claim 2, characterized in that fingerling screen cylinder is in funnel-form
Cylindrical shape, fingerling screen cylinder the top screening net be plane screening net, remaining screening net be arch screening net；Arch
When the screening net of shape is opened, each section of the screening net of arch can be bonded the inner wall of fingerling screen cylinder.
4. the device of gear selectivity experiment sampling according to claim 1, characterized in that fishery harvesting reorganizer includes oblique
Runner (8), oblique runner lower part are equipped with the connecting rod (9) being connect with oblique runner, and connecting rod lower part is equipped with and is connect with connecting rod
Horizontal-reel (10)；Oblique runner is fixed on by fixed link (11) in fingerling screen cylinder with horizontal-reel.
5. the device of gear selectivity experiment sampling according to claim 4, characterized in that oblique runner includes several
Rotating vane (12), horizontal-reel include several trimming blades (13), and the size of the rotating vane is more than the arrangement leaf
The size of piece.
6. the device of gear selectivity experiment sampling according to claim 1, characterized in that the cross of box is divided equally in each sampling
Section is in sector, and the circular in cross-section for the structure that box is combined into is divided equally in each sampling.
7. a kind of method of the device based on gear selectivity described in claim 1 experiment sampling, characterized in that including as follows
Step：
(7-1) operator selection target fingerling, operator's selection are suitble to the screening net of target fingerling, and according to experiment oversampling ratio
It chooses sampling and divides equally box；
Other screenings are netted and are opened by (7-2) operator, make the inner wall of other screening net fitting fingerling screen cylinders, operator will be each
Sampling is divided equally box and is put into experiment sampler barrel；
Experiment sample is poured into fingerling screen cylinder by (7-3) operator, and oblique runner rotates under the gravity of experiment sample, and
Drive horizontal-reel rotation；
Target fingerling in (7-4) experiment sample enters fingerling screen cylinder bottom, horizontal-reel rotation, smooth mesh by screening net
Mark fingerling；
After (7-5) is screened, operator extracts the baffle of fingerling screen cylinder bottom out, and target fingerling falls into each sampling and divides equally box
In, operator chooses one or more of samplings according to experiment oversampling ratio and divides equally box, completes sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407562.6A CN108719165B (en) | 2018-04-28 | 2018-04-28 | Fishing gear selective experiment sampling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407562.6A CN108719165B (en) | 2018-04-28 | 2018-04-28 | Fishing gear selective experiment sampling device and method |
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| Publication Number | Publication Date |
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| CN108719165A true CN108719165A (en) | 2018-11-02 |
| CN108719165B CN108719165B (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810407562.6A Active CN108719165B (en) | 2018-04-28 | 2018-04-28 | Fishing gear selective experiment sampling device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051964A (en) * | 2021-11-15 | 2022-02-18 | 中国水产科学研究院淡水渔业研究中心 | Perch micropterus salmoides fry screening system and method |
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| CN201585346U (en) * | 2009-11-20 | 2010-09-22 | 浙江省海洋水产研究所 | Selective crab pot fishing tackle |
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| CN106719481A (en) * | 2016-12-06 | 2017-05-31 | 浙江省海洋水产研究所 | A kind of Eco-friendly Trawl gear Choice tests device |
| JP2017104018A (en) * | 2015-12-07 | 2017-06-15 | 神戸漁網株式会社 | Boat seine |
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2018
- 2018-04-28 CN CN201810407562.6A patent/CN108719165B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1147310A1 (en) * | 1982-09-03 | 1985-03-30 | Полярный научно-исследовательский институт морского рыбного хозяйства и океанографии им.Н.М.Книповича | Apparatus for determining selectivity of trawl |
| WO2009136797A1 (en) * | 2008-05-06 | 2009-11-12 | Calanus As | Trawl |
| CN201585346U (en) * | 2009-11-20 | 2010-09-22 | 浙江省海洋水产研究所 | Selective crab pot fishing tackle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114051964A (en) * | 2021-11-15 | 2022-02-18 | 中国水产科学研究院淡水渔业研究中心 | Perch micropterus salmoides fry screening system and method |
| CN114051964B (en) * | 2021-11-15 | 2022-11-08 | 中国水产科学研究院淡水渔业研究中心 | Perch micropterus salmoides fry screening system and method |
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| CN108719165B (en) | 2020-04-03 |
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