CN109077032A - A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band - Google Patents
A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band Download PDFInfo
- Publication number
- CN109077032A CN109077032A CN201811003454.9A CN201811003454A CN109077032A CN 109077032 A CN109077032 A CN 109077032A CN 201811003454 A CN201811003454 A CN 201811003454A CN 109077032 A CN109077032 A CN 109077032A
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- CN
- China
- Prior art keywords
- sail
- sedimentation
- juvenile
- fish
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004062 sedimentation Methods 0.000 title claims abstract description 46
- 238000005070 sampling Methods 0.000 title claims abstract description 36
- 230000000366 juvenile effect Effects 0.000 title claims abstract description 23
- 238000000429 assembly Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 description 3
- 235000019688 fish Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241001454694 Clupeiformes Species 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000019513 anchovy Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel 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
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
-
- 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
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
- A01K73/04—Devices for spreading or positioning, e.g. control thereof
-
- 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
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
- A01K73/06—Hauling devices for the headlines
-
- 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
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
-
- 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
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
- A01K75/04—Floats
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
Abstract
The present invention provides a kind of fish-egg larva and juvenile quantitative sampling net of flexible sedimentation sail of band, including the flexible sedimentation sail of a rigid frame, a dictyosome and one；The opening portion outer of the dictyosome is fixed on the first face of the rigid frame；The flexible sedimentation sail includes a sail body and multiple windsurfings, and the windsurfing is respectively perpendicular the both ends for being fixed on the first face of the sail body and middle part and is arranged respectively along the width direction of the sail body；The section of the sail body in the width direction is in the arc being recessed to sail body the second face direction；And the sail body is bent to the direction in the first face of the sail body along its length；The sail body is detachably secured to the bottom of the rigid frame by the windsurfing.A kind of band of the invention it is flexible sedimentation sail fish-egg larva and juvenile quantitative sampling net, it is ensured that network interface area is constant when sampling operation, towing the depth of water do not change with ship's speed, and its also have the advantages that it is easy to carry, convenient for storage and stability it is good.
Description
Technical field
The present invention relates to a kind of fish-egg larva and juvenile quantitative samplings of the flexible sedimentation sail in sampling network field more particularly to band
Net.
Background technique
To reinforce fishery resources really, fully understand marine ecosystem, need the specific fingerling of quantitative collection ovum and
Its larva and juvenile grasps its stock number.It simultaneously can quantitative collection pelagic fishes the purpose of the present invention is that can be pulled at a high speed based on exploitation
With the quantitative sampling trawlnet of the larva and juvenile of the bait population such as anchovy class.
Currently, the external Sampling Survey for larva and juvenile, mainly uses all kinds of sons such as IKMT, RMT, MOCNESS young
Fish samples trawlnet.Wherein, although IKMT sampling network can be carried out 4 sections or more and pull, but pull the depth of water and network interface area with ship's speed
Variation.RMT sampling network carries out network interface opening and closing using 4 horizon bars, but drags guiding principle above network interface, can only make below 2.0 sections
Industry.MOCNESS sampling network can aboard ship read the much information including Condition Of Tow, but net in real time by armored cable
Mouth gradient is big, and towing speed is no more than 2.0 sections or so, and price is very expensive.The especially towing depth of these sampling trawlnets
Change with ship's speed, cannot achieve the purpose that quantitative sampling.The MOHT sampling network in Japan developed, although towing depth and ship
Fast relationship is little, but rigid frame lower part is hung with rigidity sedimentation plate, acts that put net operation very inconvenient.
Summary of the invention
In view of the deficiency of the prior art, the fish-egg larva and juvenile that the present invention provides a kind of flexible sedimentation sail of band quantifies
Sampling network, it is ensured that network interface area is constant when sampling operation, towing the depth of water do not change with ship's speed, and its also have it is easy to carry,
Convenient for storage and the good advantage of stability.
To achieve the goals above, the present invention provides a kind of fish-egg larva and juvenile quantitative sampling net of flexible sedimentation sail of band,
Including the flexible sedimentation sail of a rigid frame, a dictyosome and one；The rigid frame is fixed in the opening portion outer of the dictyosome
On first face；The flexible sedimentation sail includes a sail body and multiple windsurfings, and the windsurfing, which is respectively perpendicular, is fixed on the sail body
The both ends and middle part in the first face are simultaneously arranged along the width direction of the sail body respectively；The section of the sail body in the width direction be in
The arc of sail body the second face direction recess；And the sail body is curved to the direction in the first face of the sail body along its length
Folding；The sail body is detachably secured to the bottom of the rigid frame by the windsurfing.
Preferably, the camber of the arc is 10%~20%.
Preferably, the sail body and a tow direction are in 20 °~30 ° of the angle of attack.
Preferably, when the sail body and the tow direction are in 25 ° of angles of attack, the sedimentation force coefficient of the flexible sedimentation sail
It is 1.2 or close to 1.2, the resistance coefficient of the flexible sedimentation sail is 0.5 or close to 0.5.
Preferably, the windsurfing is greater than the windsurfing and sail body junction side adjacent to a side length of the rigid frame
Length.
Preferably, the two sides in the second face of the rigid frame, which respectively correspond, is fixed with one and drags guiding principle connector, described to drag guiding principle
Connector is formed along the vertical direction multiple drags guiding principle connecting hole.
Preferably, an at least float is fixed at the top of the rigid frame.
Preferably, the rigid frame is formed in rectangle and being removably cooperatively connected by multiple sub-assemblies.
Preferably, the sub-assembly includes four frame sides and four connectors, and the frame cooperatively forms the rectangle, and two
The adjacent frame side passes through the detachably connected fixation of the connector.
Preferably, the dictyosome is using Buddhist nun fiber crops without tubercle square mesh etting.
The present invention due to use above technical scheme, make it have it is following the utility model has the advantages that
Network interface area is constant when the use of rigid frame can guarantee sampling operation, while rigid frame uses knockdown knot
Structure is easy to carry and stores, while being also convenient for the installation of dictyosome.The settling capacity and resistance that flexibility sedimentation sail generates can be used for adjusting
The posture direction of rigid frame.Flexibility sedimentation sail is detachably connected with rigid frame, so that the maintenance of flexible sedimentation sail is more just
Victory, and maintenance cost can be effectively reduced.Multiple structures for draging guiding principle connecting hole can be realized to draging guiding principle and rigid frame link position
Adjustment can keep rigid frame posture when sampling operation not generate inclination uprightly with flexibility sedimentation sail cooperation.By float and just
Property frame cooperation, can effectively increase rigid frame towing the depth of water stability.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band of the embodiment of the present invention
Figure；
Fig. 2 is the flexible sedimentation sail structural schematic diagram of the embodiment of the present invention.
Specific embodiment
Below according to attached drawing 1 and Fig. 2, presently preferred embodiments of the present invention is provided, and is described in detail, is enabled more preferable geographical
Solve function of the invention, feature.
Please refer to Fig. 1 and Fig. 2, a kind of fish-egg larva and juvenile quantitative sampling of the flexible sedimentation sail of band of the embodiment of the present invention
Net, including a rigid frame 1, a dictyosome 2 and a flexible sedimentation sail 3；Rigid frame 1 is fixed in the opening portion outer of dictyosome 2
On first face；Flexibility sedimentation sail 3 includes a sail body 31 and multiple windsurfings 32, and windsurfing 32, which is respectively perpendicular, is fixed on the first of sail body 31
The both ends and middle part in face are simultaneously arranged along the width direction of sail body 31 respectively；The section of sail body 31 in the width direction is in sail body 31 the
The arc of two faces direction recess；And sail body 31 is bent to the direction in the first face of sail body 31 along its length；Sail body 31 passes through sail
Plate 32 is detachably secured to the bottom of rigid frame 1.Rigid frame 1 in rectangle and from multiple sub-assemblies removably with connect
It connects to be formed.In the present embodiment, rigid frame 1 includes four frame sides and four connectors, and frame cooperatively forms rectangle, two adjacent frames
Side passes through the detachably connected fixation of connector.In other embodiments, other composite structures can also be used in rigid frame 1, tool
Body structure is with no restrictions.
Network interface area is constant when the use of rigid frame 1 can guarantee sampling operation, while rigid frame 1 is using knockdown
Structure is easy to carry and stores, while being also convenient for the installation of dictyosome 2.The settling capacity and resistance that flexibility sedimentation sail 3 generates can be used for
Adjust the posture direction of rigid frame 1.Flexibility sedimentation sail 3 is detachably connected with rigid frame 1, so that the dimension of flexible sedimentation sail 3
It is more convenient to protect, and maintenance cost can be effectively reduced.The shape of flexibility sedimentation sail 3 can be kept by being fixed on a protective frame.
In the present embodiment, the camber of arc is 10%~20%.Sail body 31 and a tow direction are in 20 °~30 ° of the angle of attack.
When sail body 31 and tow direction are in 25 ° of angles of attack, the sedimentation force coefficient of flexibility sedimentation sail 3 is 1.2 or close to 1.2, and flexibility settles
The resistance coefficient of sail 3 is 0.5 or close to 0.5.
Windsurfing 32 is greater than the length of windsurfing 32 and 31 junction side of sail body adjacent to a side length of rigid frame 1.
The two sides in the second face of rigid frame 1, which respectively correspond, to be fixed with one and drags guiding principle connector 4, drags guiding principle connector 4 along vertical
Direction, which is formed, multiple drags guiding principle connecting hole 41.
Multiple structures for draging guiding principle connecting hole 41 can realize the adjustment to guiding principle 6 Yu 1 link position of rigid frame is draged, heavy with flexibility
It lowers a sail 3 cooperations, 1 posture of rigid frame when sampling operation can be kept not generate inclination uprightly.
High-intensitive and light weight steel can be used in rigid frame 1, and the top of rigid frame 1 is fixed with an at least float 5,
In the present embodiment, it is uniformly distributed at the top of rigid frame 1 there are four float 5.It, can be effective by the cooperation of float 5 and rigid frame 1
Increase the stability that rigid frame 1 pulls the depth of water.
Dictyosome 2 is using Buddhist nun fiber crops without tubercle square mesh etting.Aperture and cable rugosity can be selected according to sample objects biology.
A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band of the embodiment of the present invention, leads in actual use
Weight in the water of rigid frame 1, flexible sedimentation sail 3 and the link position for draging guiding principle 6 Yu rigid frame 1 are overregulated, is being adopted to realize
It keeps 1 posture of rigid frame not generate inclination uprightly when sample operation, and need to only adjust and drag 6 length of guiding principle and can be carried out required target
The high-speed sampling of the depth of water is investigated, and is suitable for large, medium and small all kinds of research vessels and is used, easy to operate.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (10)
1. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band, which is characterized in that including a rigid frame, a net
Body and a flexible sedimentation sail；The opening portion outer of the dictyosome is fixed on the first face of the rigid frame；It is described flexible heavy
It lowers a sail including a sail body and multiple windsurfings, the windsurfing is respectively perpendicular the both ends for being fixed on the first face of the sail body and middle part simultaneously
It is arranged respectively along the width direction of the sail body；The section of the sail body in the width direction is in recessed to second face of sail body direction
Sunken arc；And the sail body is bent to the direction in the first face of the sail body along its length；The sail body passes through the sail
Plate is detachably secured to the bottom of the rigid frame.
2. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 1, which is characterized in that
The camber of the arc is 10%~20%.
3. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 2, which is characterized in that
The sail body and a tow direction are in 20 °~30 ° of the angle of attack.
4. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 3, which is characterized in that
When the sail body and the tow direction are in 25 ° of angles of attack, the sedimentation force coefficient of the flexible sedimentation sail is 1.2 or close to 1.2,
The resistance coefficient of the flexible sedimentation sail is 0.5 or close to 0.5.
5. the fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of described in any item a kind of bands according to claim 1~5,
It is characterized in that, the windsurfing is greater than the length of the windsurfing and sail body junction side adjacent to a side length of the rigid frame
Degree.
6. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 5, which is characterized in that
The two sides in the second face of the rigid frame, which respectively correspond, to be fixed with one and drags guiding principle connector, described to drag guiding principle connector along the vertical direction
It is formed and multiple drags guiding principle connecting hole.
7. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 6, which is characterized in that
An at least float is fixed at the top of the rigid frame.
8. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 7, which is characterized in that
The rigid frame is formed in rectangle and being removably cooperatively connected by multiple sub-assemblies.
9. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 8, which is characterized in that
The sub-assembly includes four frame sides and four connectors, and the frame cooperatively forms the rectangle, and the two adjacent frame sides are logical
Cross the detachably connected fixation of the connector.
10. a kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band according to claim 9, feature exist
In the dictyosome is using Buddhist nun fiber crops without tubercle square mesh etting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003454.9A CN109077032A (en) | 2018-08-30 | 2018-08-30 | A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003454.9A CN109077032A (en) | 2018-08-30 | 2018-08-30 | A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109077032A true CN109077032A (en) | 2018-12-25 |
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ID=64795314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811003454.9A Pending CN109077032A (en) | 2018-08-30 | 2018-08-30 | A kind of fish-egg larva and juvenile quantitative sampling net of the flexible sedimentation sail of band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112400821A (en) * | 2020-11-03 | 2021-02-26 | 中国水产科学研究院南海水产研究所 | Ecological environment-friendly rake and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1781367A (en) * | 2004-12-03 | 2006-06-07 | 中国水产科学研究院东海水产研究所 | Single dragging rope self expanding type single ship middle layer dragnet |
| CN101990864A (en) * | 2009-08-24 | 2011-03-30 | 中国水产科学研究院东海水产研究所 | Self-submergence frame type sampling method of marine juvenile fish by sampling net |
| CN103168754A (en) * | 2013-03-29 | 2013-06-26 | 中国水产科学研究院东海水产研究所 | Method enabling trawl net to vertically expand |
| KR200477929Y1 (en) * | 2015-01-21 | 2015-08-06 | 현오남 | Protector of Crossbar for stow net and Crossbar having it |
-
2018
- 2018-08-30 CN CN201811003454.9A patent/CN109077032A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1781367A (en) * | 2004-12-03 | 2006-06-07 | 中国水产科学研究院东海水产研究所 | Single dragging rope self expanding type single ship middle layer dragnet |
| CN101990864A (en) * | 2009-08-24 | 2011-03-30 | 中国水产科学研究院东海水产研究所 | Self-submergence frame type sampling method of marine juvenile fish by sampling net |
| CN103168754A (en) * | 2013-03-29 | 2013-06-26 | 中国水产科学研究院东海水产研究所 | Method enabling trawl net to vertically expand |
| KR200477929Y1 (en) * | 2015-01-21 | 2015-08-06 | 현오남 | Protector of Crossbar for stow net and Crossbar having it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112400821A (en) * | 2020-11-03 | 2021-02-26 | 中国水产科学研究院南海水产研究所 | Ecological environment-friendly rake and use method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20181225 |