CN103155907B - Push net and method for catching wild pomfret larva living bodies - Google Patents
Push net and method for catching wild pomfret larva living bodies Download PDFInfo
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- CN103155907B CN103155907B CN201310069903.0A CN201310069903A CN103155907B CN 103155907 B CN103155907 B CN 103155907B CN 201310069903 A CN201310069903 A CN 201310069903A CN 103155907 B CN103155907 B CN 103155907B
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- wild
- silvery pomfret
- live body
- net
- fish
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- 241000630524 Taractes rubescens Species 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 20
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- 241000251468 Actinopterygii Species 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 3
- 230000004083 survival effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 206010022998 Irritability Diseases 0.000 description 1
- 241001214258 Pampus argenteus Species 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000035618 desquamation Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
The invention relates to a push net and a method for catching wild pomfret larva living bodies. The push net comprises a push net body, an arc-shaped elongated cloth bag is arranged on the tail portion of the push net body, and the tail end of the arc-shaped elongated cloth bag is connected with a cylindrical frame; and the cylindrical frame is wrapped with cloth strips, and a semicircular edge opening is formed in the top end of the cylindrical frame. The method for catching the wild pomfret larva living bodies includes the following steps: carrying out catching work in a sea area by using the method that two sides of a prow are respectively fixed with one push net; and observing and collecting the pomfret larvae through the opening in the top end of the cylindrical frame in real time. By means of the push net and the method for catching the wild pomfret larva living bodies, the catching survival rate of the pomfret larvae can be improved.
Description
Technical field
The present invention relates to fish seed catching method, particularly relate to a kind of pushing net and method of wild silvery pomfret seedling live body of fishing for.
Background technology
Silvery pomfret (Pampus argenteus) is subordinate to silvery pomfret section, silvery pomfret belongs to, and is a kind of marine economy fish that are distributed widely in China coast, has higher nutritive value and the market demand.Silvery pomfret is wide temperature eurysaline fishes, fast growth, and in 1 year, accessibility is ripe, has higher market value, is the potential new varieties of propagating exploitation artificially of a kind of very tool.Meanwhile, due to the continuous expansion of the market demand, the decay gradually of wild silvery pomfret germ plasm resource in addition, only relies on natural resources can not meet the demand in market far away.Therefore, the artificial breeding of the silvery pomfret of scale and cultivation work have become the current technical problem that must solve.
In carrying out the research process that fish new varieties breed and cultivate, from natural water area, fish for wild fry live body, by domestication, cultivation, thereby obtain natural parental population, be an indispensable important channel.Be the mating season of silvery pomfret annual spring, and the many migrations of silvery pomfret parent are laid eggs and raised an infant to coastal waters.But due to silvery pomfret irritability strong reaction, squama carefully easily comes off, in the process of fishing for, very easily cause desquamation, finally cause fry to survive.Therefore, how farthest to reduce and to fish for the damage to silvery pomfret in process, the survival rate of fishing for that improves silvery pomfret seedling is an important technical barrier.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of pushing net and method of wild silvery pomfret seedling live body of fishing for, and can improve the survival rate of fishing for of silvery pomfret seedling.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pushing net of wild silvery pomfret seedling live body of fishing for is provided, comprise the body of pushing net, the described body afterbody of pushing net is provided with a rectangular cloth bag of arc, and the rectangular cloth bag end of described arc connects a cylindrical frame; Described cylindrical frame wraps up with cloth, and on top, is provided with semicircle along limit opening.
The mesh of the described body of pushing net is 1cm.
Height and the diameter of described cylindrical frame are 60cm.
Described semicircle is that zip mode semicircle is along limit opening along limit opening.
The technical solution adopted for the present invention to solve the technical problems is: a kind of wild silvery pomfret seedling live body catching method of fishing for is also provided, comprises the following steps:
(1) each is fixed a mode of pushing net as described in arbitrary claim in claim 1-4 and carries out operation and fish in marine site, to adopt on the bow both sides;
(2) by the opening part on described cylindrical frame top, observe, collect silvery pomfret seedling in real time.
In described step (1), cylindrical frame is immersed in underwater and is fixed on hull limit by rope.
Activity duration in described step (1) is seawater spring season.
120cm place, sea level is goed deep on the base of pushing net in described step (1).
The speed of pushing net in described step (1) is 3-5 nautical mile/hour.
In described step (2), adopt water ladle band water to fish for silvery pomfret seedling.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, there is following advantage and good effect: the present invention installs the rectangular cloth bag of arc at the afterbody of pushing net, cloth bag is conducive to reduce the scratch degree to fry, the utilization of the rectangular cloth bag of arc has simultaneously increased the resistance to water-flow while pushing net operation, fry activity space increases, reduced fry scratch each other, the present invention can Real Time Observation and is collected fry in addition, avoid pushing and causing Crowding Stress because of too much fry, obviously improved and fished for survival rate.The afterbody of pushing net in the present invention adopts the design of cylindrical cloth-bag frame, meets silvery pomfret seedling and does not stop the habit that rotation is moved about.The present invention on the bow both sides each fix one and push net, the operating efficiency of pushing net is high, and is beneficial to and fishes in real time operation aboard ship, without repeating, receives net, puts net.
Accompanying drawing explanation
Fig. 1 is the structural representation of pushing net of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
The first embodiment of the present invention relates to a kind of pushing net of wild silvery pomfret seedling live body of fishing for, as shown in Figure 1, comprise the body 1 of pushing net, described in body 1 afterbody of pushing net a rectangular cloth bag 2 of arc is installed, rectangular cloth bag 2 ends of described arc connect a cylindrical frame 3; Described cylindrical frame 3 use cloth parcels, and on top, be provided with semicircle along limit opening 4.Wherein, the mesh of body 1 of pushing net described in is 1cm.Height and the diameter of described cylindrical frame 3 are 60cm.Described semicircle is that zip mode semicircle is along limit opening along limit opening 4.
Be not difficult to find, the present invention installs the rectangular cloth bag of arc at the afterbody of pushing net, cloth bag is conducive to reduce the scratch degree to fry, the utilization of the rectangular cloth bag of arc has simultaneously increased the resistance to water-flow while pushing net operation, fry activity space increases, and has reduced fry scratch each other, and the present invention can Real Time Observation and collected fry in addition, avoid pushing and causing Crowding Stress because of too much fry, obviously improved and fished for survival rate.The afterbody of pushing net in the present invention adopts the design of cylindrical cloth-bag frame, meets silvery pomfret seedling and does not stop the habit that rotation is moved about.
The second embodiment of the present invention relates to a kind of wild silvery pomfret seedling live body catching method of fishing for, and comprises the following steps:
(1) each is fixed an above-mentioned mode of pushing net and carries out operation and fish in marine site, to adopt on the bow both sides.Wherein, cylindrical frame is immersed in underwater and is fixed on hull limit by rope.The fishing operation time is seawater spring season, and 120cm place, sea level is goed deep on the base of pushing net while fishing for, and the speed of pushing net is 3-5 nautical mile/hour.
(2) by the opening part on described cylindrical frame top, observe, collect silvery pomfret seedling in real time.While wherein, collecting silvery pomfret seedling, can adopt water ladle band water to fish for silvery pomfret seedling.
As can be seen here, the present invention on the bow both sides each fix one and push net, the operating efficiency of pushing net is high, and is beneficial to and fishes in real time operation aboard ship, without repeating, receives net, puts net.
By two specific embodiments, further illustrate the present invention below.
Embodiment mono-:
Time: on May 5th, 2012 (lunar calendar April 15, spring tide)
Place: Yuhuan surrounding waters, Zhejiang.
Activity duration: 2h
Operation ship: 2
The specification of pushing net: network interface width 2m, height 1.5m, mesh 1cm.
Fishing efficiency: catch silvery pomfret seedling (pitching long 1.5-2cm) 3850 tails, live body mantissa 3690 tails, survival rate reaches 95.84%.
Embodiment bis-:
Time: on May 21st, 2012 (the intercalation junior one in April of the lunar calendar, spring tide)
Place: Yuhuan surrounding waters, Zhejiang.
Activity duration: 3h
Operation ship: 1
The specification of pushing net: network interface width 2m, height 1.5m, mesh 1cm.
Fishing efficiency: catch silvery pomfret seedling (pitching long 2-3cm) 1270 tails, live body mantissa 1165 tails, survival rate reaches 91.73%.
Claims (10)
1. fish for pushing net of wild silvery pomfret seedling live body for one kind, comprise the body of pushing net (1), it is characterized in that, described in body (1) afterbody of pushing net a rectangular cloth bag of arc (2) is installed, the rectangular cloth bag of described arc (2) end connects a cylindrical frame (3); Cloth parcel for described cylindrical frame (3), and on top, be provided with semicircle along limit opening (4).
2. according to claim 1ly fish for pushing net of wild silvery pomfret seedling live body, it is characterized in that, described in the push net mesh of body (1) be 1cm.
3. according to claim 1ly fish for pushing net of wild silvery pomfret seedling live body, it is characterized in that, height and the diameter of described cylindrical frame (3) are 60cm.
4. according to claim 1ly fish for pushing net of wild silvery pomfret seedling live body, it is characterized in that, described semicircle is that zip mode semicircle is along limit opening along limit opening (4).
5. fish for a wild silvery pomfret seedling live body catching method, it is characterized in that, comprise the following steps:
(1) each is fixed a mode of pushing net as described in arbitrary claim in claim 1-4 and carries out operation and fish in marine site, to adopt on the bow both sides;
(2) by the opening part on described cylindrical frame top, observe, collect silvery pomfret seedling in real time.
6. wild silvery pomfret seedling live body catching method according to claim 5, is characterized in that, in described step (1), cylindrical frame is immersed in underwater and is fixed on hull limit by rope.
7. wild silvery pomfret seedling live body catching method according to claim 5, is characterized in that, the activity duration in described step (1) is seawater spring season.
8. wild silvery pomfret seedling live body catching method according to claim 5, is characterized in that, 120cm place, sea level is goed deep on the base of pushing net in described step (1).
9. wild silvery pomfret seedling live body catching method according to claim 5, is characterized in that, the speed of pushing net in described step (1) is 3-5 nautical mile/hour.
10. wild silvery pomfret seedling live body catching method according to claim 5, is characterized in that, adopts water ladle band water to fish for silvery pomfret seedling in described step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069903.0A CN103155907B (en) | 2013-03-05 | 2013-03-05 | Push net and method for catching wild pomfret larva living bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069903.0A CN103155907B (en) | 2013-03-05 | 2013-03-05 | Push net and method for catching wild pomfret larva living bodies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103155907A CN103155907A (en) | 2013-06-19 |
| CN103155907B true CN103155907B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310069903.0A Expired - Fee Related CN103155907B (en) | 2013-03-05 | 2013-03-05 | Push net and method for catching wild pomfret larva living bodies |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030074531A (en) * | 2003-08-14 | 2003-09-19 | 대한민국(관리부서:국립수산과학원) | Bag-net using each kite as buoyant article |
| CN201509513U (en) * | 2009-06-19 | 2010-06-23 | 中国水产科学研究院长江水产研究所 | River fish collection device |
| CN102845375A (en) * | 2012-09-07 | 2013-01-02 | 怀远县渔业科技发展有限责任公司 | Catching net for oriental weatherfish |
-
2013
- 2013-03-05 CN CN201310069903.0A patent/CN103155907B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030074531A (en) * | 2003-08-14 | 2003-09-19 | 대한민국(관리부서:국립수산과학원) | Bag-net using each kite as buoyant article |
| CN201509513U (en) * | 2009-06-19 | 2010-06-23 | 中国水产科学研究院长江水产研究所 | River fish collection device |
| CN102845375A (en) * | 2012-09-07 | 2013-01-02 | 怀远县渔业科技发展有限责任公司 | Catching net for oriental weatherfish |
Non-Patent Citations (2)
| Title |
|---|
| 孙中之等.黄渤海区张网渔业.《渔业科学进展》.2012,第33卷(第3期),第94-101页. * |
| 黄渤海区张网渔业;孙中之等;《渔业科学进展》;20120630;第33卷(第3期);第94-101页 * |
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| CN103155907A (en) | 2013-06-19 |
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