CN106417197A - Net spreading juvenile fish release device with self-provided guiding net - Google Patents
Net spreading juvenile fish release device with self-provided guiding net Download PDFInfo
- Publication number
- CN106417197A CN106417197A CN201611102209.4A CN201611102209A CN106417197A CN 106417197 A CN106417197 A CN 106417197A CN 201611102209 A CN201611102209 A CN 201611102209A CN 106417197 A CN106417197 A CN 106417197A
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- Prior art keywords
- framework
- net
- juvenile fish
- release device
- throwing
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 62
- 230000000366 juvenile effect Effects 0.000 title claims abstract description 55
- 239000002775 capsule Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 210000003141 lower extremity Anatomy 0.000 claims description 8
- 210000001015 abdomen Anatomy 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 235000019688 fish Nutrition 0.000 description 49
- 241000894007 species Species 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000003306 harvesting Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003653 coastal water Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003578 releasing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000252203 Clupea harengus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000019514 herring Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 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
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention belongs to the technical field of marine fishery and provides a net spreading juvenile fish release device with a self-provided guiding net. The net spreading juvenile fish release device comprises a first frame, a second frame and a small-mesh net piece; the first frame comprises a first upper part and a second lower part which are separated by a first rung, and multiple steel bars are welded in the first upper part; the second lower part is left vacant; the second frame comprises a second upper part and a second lower part which are separated by a second rung, the second upper part is left vacant, the second lower part is provided with a net piece, and the second frame is bent by a certain angle at the second rung; the first frame is positioned in the second frame, the middle position of the first frame is provided with an adapting piece to be connected together with the second frame so as to form a structure of which one side is x-shaped; the mesh net piece is of a rectangular structure, the upper and lower edges of the mesh net piece are respectively connected at the upper edges of the first rung and the second frame. The net spreading juvenile fish release device has the advantages that the release rate of juvenile fish is improved, the angle and size can be adjusted, and the practicability is strong.
Description
Technical field
The present invention relates to sea fishery technical field, more particularly to a kind of carrying are oriented to the juvenile fish release device of throwing the net that nets.
Background technology
Throw the net netting gear so that its simple structure, energy consumption be low, fishery harvesting efficiency high, adapt to multiple depth of water operations, select fishing ground motor-driven
Flexibly and the advantages of productivity effect is good, by coastal waters, fisherman widely uses, and fishing effort is constantly lifted, become China eastern,
One of main marine fishing operating type of the Huanghai Sea, but the netting gear mesh of cod-end for throwing the net used is too small, and netting gear lacks selectivity,
Capture substantial amounts of economic fish germling during fishery harvesting, wherein, winter, spring juvenile fish ratio more than 90%, to fishery resources
Maintenance bring detrimental effect.
Mainly reduce the Fish germling quantity of netting gear capture of throwing the net in prior art using 2 kinds of methods, one kind is to pass through
Change mesh juvenile fish is discharged, for example, amplify size of mesh or using square mesh net capsule, square mesh window, steering net
Mesh（T90）Improve the selectivity of netting gear etc. other measures, but traditional net capsule structure is after fishery harvesting aggregation, capsule head net net
Mesh is easily closed, it is impossible to effectively discharge little individuality juvenile fish, and this method fundamentally can not solve to capture during fishing for
The problem of a large amount of juvenile fish, practicality is not strong, and is difficult to be approved by fisherman；Another kind of method is installed just in netting gear capsule head wet end
Property fence in order to discharging little individuality Fish in advance, compare a kind of typically domestic Y molded dimension for occurring and angle adjustable
Throw the net juvenile fish release device, the device includes：First framework, the second framework and the 3rd framework, the first framework, internal welding is connected to many
Root steel bar, with identical spacing between many steel bars, being welded on upper and lower 2 side of the first framework of intermittent, second
The first frame size of framework is identical, and inside is provided with mesh sheet, and the 3rd framework is hollow frame, and the first framework and the second framework pair
The end for being connected to the 3rd framework for claiming, constitutes y-type structure.Wherein, the first framework is used for filtering out little individuality fish body, the second frame
Frame is used for stopping in netting gear that less fish body enters into bottom, so as to serve the effect of the little individuality juvenile fish of release, but, this
Plant when device filters little individuality juvenile fish and lack guidance quality, i.e., in practical operation, the little individuality juvenile fish below netting gear still can be led to
Cross the 3rd framework to enter in netting gear net capsule, so that the releasing effect of juvenile fish cannot be ensured.
Therefore, it is an object of the invention to designing a kind of release rate for improving juvenile fish, practical juvenile fish of throwing the net discharges
Device.
Content of the invention
The invention provides a kind of carry the juvenile fish release device of throwing the net for being oriented to net, technical scheme is as follows：
A kind of carrying is oriented to the juvenile fish release device of throwing the net that nets, including：First framework, the second framework and little mesh mesh sheet；
First framework, including first top spaced apart by the first crosspiece and the first bottom, it is characterised in that on described first
Many filtering rods being provided with portion, being spaced equal distance between many filtering rods, the two ends of filtering rod are connected to
On the top edge on the first top and first crosspiece；First bottom is for being left white；
Second framework, including second top spaced apart by the second crosspiece and the second bottom, it is characterised in that on described second
Portion is for being left white, and second bottom is provided with guiding net, and the second framework is bent with certain angle at the second crosspiece；
First framework is located in the second framework, and the centre position of the first framework is provided with connector and the second framework is connected to one
Rise, constitute structure of the side for × type；
Little mesh mesh sheet is rectangular configuration, thereon, lower limb be connected to the top edge of the first crosspiece and the second framework.
A kind of the juvenile fish release device of throwing the net for being oriented to net, the height of the first top and the first bottom is carried preferably, described
The ratio of degree is：4:1, the second top with the ratio of the height of the second bottom is：7:5.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, the spacing between many filtering rods is
1.5cm.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, the first framework, the second framework, crosspiece
And filtering rod is stainless steel strip, a diameter of 0.7-1.3cm of the stainless steel strip.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, the mesh sheet of the second bottom is for a size of
The mesh sheet of 1.5cm, the angle that the second framework is bent at the second crosspiece is 25 ° -35 °.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, connector is hinge.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, the horizontal sheepshank system of little mesh mesh sheet
Number is 0.3-0.7.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, also include：Multiple floats, pacify respectively
The top edge of first framework and the second framework is mounted in, wherein, the float quantity on the first framework is 5-7, the second framework
On float quantity be 2-3, and the spacing difference between multiple floats is equal.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, the hinge of the first framework and the second framework
Chain junction makes the height of the first crosspiece less than the height of the second crosspiece in the angle for being 60 ° to the maximum.
Preferably, a kind of the carrying is oriented to the juvenile fish release device of throwing the net that nets, also include：Body and net capsule, described
Body and net capsule are structure as a whole, and the body is divided into back of the body net, belly, left and right etting, first framework, the second framework peace
Loaded between body and net capsule, top edge is all on the etting for being sewn on back of the body net, and is connected by rope, and lower limb is all around being sewn on
On belly etting, the lateral edges of first framework, the second framework and little mesh mesh sheet are rotating around the left and right etting for being sewn on body
On.Compared with prior art, advantages of the present invention and good effect are：
1st, can according to using netting gear size determining the tool of the first top, the first bottom, the second top and the second bottom
Body size.
2nd, the first framework, including first top spaced apart by the first crosspiece and the second bottom, welds in the first top
There are many steel bars, equal distance between many steel bars, is spaced, the effect on the first top is to separate big individuality fish and little
Body juvenile fish, little individuality juvenile fish can pass through steel bar gap, and so as to escape from netting gear, and big individuality fish is because cannot pass through steel bar gap
It is left in netting gear, and steel bar smooth surface, reduce the injury to fish body.
3rd, the second bottom is provided with mesh sheet, and the second framework is bent with certain angle at the second crosspiece, works as fished species
In the bottom of netting gear, during the present invention being close to current, can gradually be guided by the mesh sheet of the second bottom and fish for
Object upwards and contacts the first framework.
4th, the hinge connection of the first framework and the second framework makes the highly low of the first crosspiece in the angle for being 60 ° to the maximum
Height in the second crosspiece, it is ensured that all of individuality all touches the first framework under normal circumstances.
5th, little mesh mesh sheet be rectangular configuration, thereon, lower limb be connected to the top of the first crosspiece and the second framework
Edge, after little individuality juvenile fish passes through the first top, can be by the stop of little mesh mesh sheet between the first framework and the second framework
Upper opening is escaped, and big individuality fished species cannot pass through the first top and be directed into the bottom of netting gear, by passing through
First bottom enters the net capsule of netting gear, realizes the effective capture to big individuality fished species.
6th, the connector of the present invention is can to fold 2 frameworks hinge, when not using, convenient for collecting.
7th, using chain connection between the first framework and the second framework, can be installed by rational in certain scope
Adjust framework outside dimension and between angle, in actual job or scientific experimentation, flexible, with good suitable
Ying Xing.
Description of the drawings
With reference to the accompanying drawings and detailed description describing the present invention in detail：
Fig. 1 is a kind of structural representation for carrying the juvenile fish release device of throwing the net for being oriented to net of the present invention.
Fig. 2 is that a kind of juvenile fish release device of throwing the net for carrying guiding net of the present invention is installed on the structural representation on throwing the net.
Wherein, the corresponding relation between the reference in Fig. 1 to Fig. 2 and component names is：
First framework 1, the first top 11, the first bottom 12, the first crosspiece 13, filtering rod 14, the second framework 2, the second top 21,
Second bottom 22, the second crosspiece 23, it is oriented to net 24, little mesh mesh sheet 3, float 4, net capsule 5,6. specific embodiment of body
The core of the present invention is to provide a kind of juvenile fish release device of throwing the net for carrying and being oriented to net, and it is low to solve juvenile fish release rate, real
With not strong enough the problem of property.
In order that measure, creation characteristic, reached purpose and effect that the technology of the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1：
Fig. 1 is a kind of structural representation for carrying the juvenile fish release device of throwing the net for being oriented to net of the present invention.
As shown in figure 1, the invention provides a kind of carry be oriented to net juvenile fish release device of throwing the net, including：First framework
1st, the second framework 2 and little mesh mesh sheet 3；First framework 1, including the first top 11 and first being spaced apart by the first crosspiece 13
Bottom 12, is provided with many filtering rods 14 in the first top 11, and the two ends of filtering rod 14 are connected to the upper of the first top 11
On edge and first crosspiece 13；First bottom 12 is for being left white；Second framework 2, including being spaced by the second crosspiece 23
The second top 21 that opens and the second bottom 22, the second top 21 is for being left white, and the second bottom 22 is provided with guiding net 24, the second framework
2 are bent with certain angle at the second crosspiece 23；First framework 1 is located in the second framework 2, the centre position of the first framework 1
It is provided with connector to link together with the second framework 2, constitutes structure of the side for × type；Little mesh mesh sheet 3 is rectangular configuration,
Thereon, lower limb is connected on the top edge of the first crosspiece 13 and the second framework 23.
In the present embodiment, the first top 11 with the ratio of the height of the first bottom 12 is：4:1, second top 21 and
The ratio of the height of two bottoms 22 is：7:5, can according to using netting gear size come determine the first top, the first bottom, second
Top and the concrete size of the second bottom.
In the present embodiment, the spacing between many filtering rods 14 is to be thrown the net by current coastal waters for the spacing of 1.5cm, 1.5cm
During in fishing gear, fishery harvesting constitutes, the individual size of main fished species is determined, has not both interfered with the releasing effect of juvenile fish, also not
Master can be caused to catch object escape.
In the present embodiment, the first framework 1, the second framework 2, the first crosspiece 13, the second crosspiece 23 and filtering rod 14 are
Stainless steel strip, a diameter of 0.7-1.3cm of the stainless steel strip, preferably a diameter of 1.0cm, stainless intensity is big, corrosion resistant
Corrosion is strong, and stainless diameter can be according to the size of netting gear, the size unrestricted choice of fishing boat, preferably 1.0cm, so not
As for because the quality of device causes to operate inconvenience above deck greatly very much.
In the present embodiment, the mesh sheet of the second bottom 22 is a size of mesh sheet of 1.5cm, and the second framework is curved at the second crosspiece
The angle of folding is 25 ° -35 °, preferably 30 °, and it is too precipitous and little individuality can not be fished for fished species that angle is then oriented to greatly net
Guiding release, and angle is too little, then need plus the second bottom size, rational angle is 25 ° -35 °.
In the present embodiment, connector is hinge.
In the present embodiment, the horizontal hanging ratio of little mesh mesh sheet is 0.3.
In the present embodiment, also include：Multiple floats 4, make the present invention have certain buoyancy in underwater work, pacify respectively
The top edge of first framework 1 and the second framework 2 is mounted in, wherein, the float quantity on the first framework 1 is 5-7, the second frame
Float quantity on frame is 2-3, and the spacing difference between multiple floats is equal.
In the present embodiment, the hinge connection of the first framework 1 and the second framework 2 makes the first horizontal stroke in the angle for being 60 ° to the maximum
The height of shelves is less than the height of the second crosspiece.
Embodiment 2：
Fig. 2 is that a kind of juvenile fish release device of throwing the net for carrying guiding net of the present invention is installed on the structural representation on throwing the net.
As shown in Fig. 2 the present embodiment also includes on the basis of embodiment 1：Body 6 and net capsule 5, the body 6 and net
Capsule 5 is structure as a whole, and the body 6 is divided into back of the body net, belly, left and right etting, and first framework 1, the second framework 2 are installed on
Between body 6 and net capsule 5, top edge and is connected by rope all on the etting for being sewn on back of the body net, and lower limb is all around being sewn on abdomen
On net etting, the lateral edges of the first framework, the second framework and little mesh mesh sheet are rotating around being sewn on the left and right etting of body.
In the present embodiment, the top edge of the first framework and the second framework is at a distance of 0.5m, and uses 2 rope reinforcement by connection,
It is in 60 ° of angles in hinge connection to keep framework A and B, so that the present invention is vertically in netting gear, by the first framework and the second framework
Lower limb around being sewn on the belly of netting gear, then equably by the first framework, the second framework lateral edges rotating around being sewn on body
Left and right etting on.
In the present embodiment, intermarginal in the top of the first crosspiece and the second framework, a little mesh mesh sheet is installed, and by little mesh
The both sides of mesh sheet are uniformly around being sewn on corresponding left and right etting.
It should be appreciated that the regular job custom of the noun of locality is all binding operation person and Figure of description and set up, it
Appearance should not affect protection scope of the present invention.
During the present embodiment work, the first top, is being connect with current when fished species are in the bottom of netting gear in stream is met
During the nearly present invention, gradually guide fished species upwards and contact the mistake on the first top by the net that is oriented on the second bottom
Filter bar, and the second crosspiece is higher than the first crosspiece, it is ensured that and all of individuality all touches the first top under normal circumstances
Filtering rod；Because by the stop of little mesh mesh sheet between the first framework and the second framework after little individuality juvenile fish passes through the first top
Upper opening is escaped, and big individuality fished species cannot pass through the first top and be directed into the bottom of netting gear, by passing through
First bottom enters the net capsule of netting gear, realizes the effective capture to big individuality fished species.
In order to verify the effect of present invention release juvenile fish further, on October 22nd, 2016 to 28 days, in Su Qiyu
Sea trial is carried out on No. 01264 fishing boat of throwing the net, testing position is 31 53 ' N, 122 05 ' E surrounding waters, the fishing of employing
Have the single pile herring warp for principal dimensions for 70.0 m × 67.7 m to throw the net fishing gear.Operation in close marine site is chosen 2 and pushes up netting gear, wherein
One top is installed the present invention and carries the juvenile fish release device of throwing the net for being oriented to net as netting gear is tested, and in addition a top is thrown the net as control web
Tool, the contrast through excessive net time, its juvenile fish fishing of test netting gear that the present invention carries the juvenile fish release device of throwing the net for being oriented to net is installed
Obtain weight and reduce 95%-98% than control web, and big individuality fished species fishery harvesting weight is basically identical.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (10)
1. a kind of carrying is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that include：First framework, the second framework and little
Mesh mesh sheet；
First framework, including the first top for being spaced apart by the first crosspiece and the first bottom, it is characterised in that described the
Many filtering rods are provided with one top, and the two ends of filtering rod are connected to the top edge on the first top and first crosspiece
On, first bottom is for being left white；
Second framework, including the second top for being spaced apart by the second crosspiece and the second bottom, it is characterised in that described the
Two tops are for being left white, and second bottom is provided with guiding net, and the second framework bends angled at the second crosspiece；
First framework is located in the second framework, and the centre position of the first framework is provided with connector and is connected to the second framework
Together, composition side is the structure of × type；
The little mesh mesh sheet is rectangular configuration, thereon, lower limb be connected to the top edge of the first crosspiece and the second framework
On.
2. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that described first
Top with the ratio of the height of the first bottom is：4:1, second top with the ratio of the height of the second bottom is：7:5.
3. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that described many
Spacing between filtering rod is 1.5cm.
4. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that described first
Framework, the second framework, crosspiece and filtering rod are stainless steel strip, a diameter of 0.7-1.3cm of the stainless steel strip.
5. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that
The mesh sheet of second bottom is a size of mesh sheet of 1.5cm, and the angle that the second framework is bent at the second crosspiece is
25°-35°.
6. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that the connection
Part is hinge.
7. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that the little net
The horizontal hanging ratio of mesh mesh sheet is 0.3-0.7.
8. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that also include：
Multiple floats, are separately mounted to the top edge of first framework and the second framework, and wherein, the float quantity on the first framework is
5-7, the float quantity on the second framework is 2-3, and the spacing difference between multiple floats is equal.
9. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that
The hinge connection of first framework and the second framework is less than the height of the first crosspiece in the angle for being 60 ° to the maximum
The height of the second crosspiece.
10. a kind of carrying according to claim 1 is oriented to the juvenile fish release device of throwing the net that nets, it is characterised in that also include：
Body and net capsule, the body and net capsule are structure as a whole, and the body is divided into carries on the back net, belly, left and right etting, and described first
Framework, the second framework are installed between body and net capsule, and top edge is all on the etting for being sewn on back of the body net, and is connected by rope
Connect, lower limb is all around being sewn on belly etting, and the lateral edges of first framework, the second framework and little mesh mesh sheet distinguish blind stitching
On the left and right etting of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102209.4A CN106417197A (en) | 2016-12-05 | 2016-12-05 | Net spreading juvenile fish release device with self-provided guiding net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102209.4A CN106417197A (en) | 2016-12-05 | 2016-12-05 | Net spreading juvenile fish release device with self-provided guiding net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106417197A true CN106417197A (en) | 2017-02-22 |
Family
ID=58223227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611102209.4A Pending CN106417197A (en) | 2016-12-05 | 2016-12-05 | Net spreading juvenile fish release device with self-provided guiding net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106417197A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200938798Y (en) * | 2006-08-02 | 2007-08-29 | 中国水产科学研究院东海水产研究所 | Device for releasing scaleph by trawl |
| CN201349447Y (en) * | 2009-01-19 | 2009-11-25 | 上海海洋大学 | Cyanea nozakii net sheet separation device of fishing net |
| CN103548783A (en) * | 2013-10-24 | 2014-02-05 | 中国海洋大学 | Device and method for actively stimulating juvenile fishes to escape |
| CN204409302U (en) * | 2015-01-29 | 2015-06-24 | 上海海洋大学 | The juvenile fish releasing device of throwing the net of a kind of Y molded dimension and angle adjustable |
| CN206251768U (en) * | 2016-12-05 | 2017-06-16 | 上海海洋大学 | It is a kind of to carry the juvenile fish release device of throwing the net for being oriented to net |
| CN111802337A (en) * | 2020-05-25 | 2020-10-23 | 中国水产科学研究院东海水产研究所 | Euphausia superba trawl dual-selectivity device structure |
-
2016
- 2016-12-05 CN CN201611102209.4A patent/CN106417197A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200938798Y (en) * | 2006-08-02 | 2007-08-29 | 中国水产科学研究院东海水产研究所 | Device for releasing scaleph by trawl |
| CN201349447Y (en) * | 2009-01-19 | 2009-11-25 | 上海海洋大学 | Cyanea nozakii net sheet separation device of fishing net |
| CN103548783A (en) * | 2013-10-24 | 2014-02-05 | 中国海洋大学 | Device and method for actively stimulating juvenile fishes to escape |
| CN204409302U (en) * | 2015-01-29 | 2015-06-24 | 上海海洋大学 | The juvenile fish releasing device of throwing the net of a kind of Y molded dimension and angle adjustable |
| CN206251768U (en) * | 2016-12-05 | 2017-06-16 | 上海海洋大学 | It is a kind of to carry the juvenile fish release device of throwing the net for being oriented to net |
| CN111802337A (en) * | 2020-05-25 | 2020-10-23 | 中国水产科学研究院东海水产研究所 | Euphausia superba trawl dual-selectivity device structure |
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