CN105660553A - Novel net hauling method for pond - Google Patents

Novel net hauling method for pond Download PDF

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Publication number
CN105660553A
CN105660553A CN201610075715.2A CN201610075715A CN105660553A CN 105660553 A CN105660553 A CN 105660553A CN 201610075715 A CN201610075715 A CN 201610075715A CN 105660553 A CN105660553 A CN 105660553A
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China
Prior art keywords
net
cage
interim
sweep
pond
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CN201610075715.2A
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Chinese (zh)
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CN105660553B (en
Inventor
冯亚明
焦庆清
顾海龙
王伟
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Taizhou Agricultural Science Institute Jiangsu Academy Of Agricultural Sciences
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Taizhou Agricultural Science Institute Jiangsu Academy Of Agricultural Sciences
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Priority to CN201610075715.2A priority Critical patent/CN105660553B/en
Publication of CN105660553A publication Critical patent/CN105660553A/en
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Publication of CN105660553B publication Critical patent/CN105660553B/en
Expired - Fee Related legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K79/00Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Revetment (AREA)

Abstract

The invention discloses a novel net hauling method for a pond. The method comprises the following steps: 1, building temporary net cages, to be specific, 1.1, selecting sites for building the temporary net cages, 1.2, preparing cage nettings, and 1.3, building the temporary net cages; 2, pulling a net around a pond from a single side, to be specific, 2.1, preparing a beach seine, 2.2, laying the beach seine, 2.3, pulling the beach seine, and 2.4, hauling in the beach seine; 3, selecting catches; 4, settling the nets. As the temporary net cages are built, the beach seine is slowly dragged around the pond at a uniform speed from a single side, and aquatic animals can swim into the temporary net cages voluntarily in a driven manner, the novel net hauling method is high in efficiency, high in catching rate, wide in application range, low in cost and small in mechanical damage to the catches.

Description

A kind of novel pond pulling method
Technical field
The present invention relates to technical field of aquaculture, particularly relate to a kind of fishery cultivating pond pulling method.
Background technology
Along with developing rapidly of fishery cultivating industry, not only pond culture scale, cultured output have had tremendous increase, breed variety there has also been great variety, except tradition Fish such as grass silver carp flathead Cyprinus carpio crucian carp breams, increasing raiser starts the famous and precious aquatic products such as Cultured Tenualosa Reevesii, hairtail, Macrobrachium rosenbergii, also having part raiser to specialize in the cultivation of aquatic animal parent, the raiser also having is engaged in the fishery new model PRODUCTION TRAITS that multi items is raised together with.
It is essential in fishery cultivating that operation is drawn in the net in pond, but existing pond pulling method also exists lower column defects:
One be take a lot of work, require great effort, time-consuming.
Existing pond draws in the net to draw in the net for both sides, it is necessary to manpower more, the both sides drawn in the net are both needed to 4-5 people, and when drawing in the net, the people on both sides needs to keep synchronizing, if a side is very fast, the opposing party is then relatively more painstaking; If drawing in the net to sell, can only starting to draw in the net before transport vehicle is about to arrival, a net quantity of the catch still needs to repeatedly draw in the net not, this adds increased haulage time, causes secondary injury especially for being the parent planted to the catches got on the bus.
Two is that capture rate is low.
The damage of catches is big, the reason caused be mainly following some: first, both sides are drawn in the net simultaneously, generally drawing in the net speed, drawing in the net lower end does not have enough time to scrape the end to advance, and capture rate reduces, simultaneously aquatic animal frightened after, the aquatic animal that motoricity is strong jumps out from net cage upper end; Second, both sides draw in the net speed asynchronous time, slow often have aquatic animal to be close to from network edge to slip out, not only reduce capture rate, also a part of aquatic animal is caused scratch, improve mortality rate; 3rd, when receiving net, etting overlapping is more, and the net cage shape temporarily enclosed is unstable, death by suffocation after a lot of aquatic animals plant etting overlapping; 4th, draw in the net speed and stirred bed mud, add the activity of aquatic animal in pond simultaneously, again major part aquatic animal in pond is gathered in pocket after final receipts net, easily cause anoxia, raise the nose above water to breathe phenomenon, and catches frightened after run helter-skelter, cause damage; 5th, affect the many factors of capture rate, it is often necessary to repeatedly draw in the net to meet demand. Catches all can be damaged by receipts net, Pick operation after drawing in the net every time, and some off-gauges close the catches required i.e. death soon after repeatedly frightening even injury.
Three, narrow application range.
Existing pond pulling method is better to the Fish effect that mobility is strong, then there is many drawbacks in the shrimps more weak for mobility, " draw in the net syndrome " of Macrobrachium rosenbergii is exactly a typical case, it is all a test to cultivation macrobrachium that pond drawing in the net each time is selected, a lot of shrimps have the mechanical injuries of disconnected palpus, amputation, disconnected volume thorn and docking fan, namely non-sterile goes back to the pool, and very easily bacterial infection morbidity, causes economic loss.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is proposed to a kind of high efficiency, high capture rate, applied widely, low cost, the novel pond pulling method that catches mechanical injuries are little.
The present invention is achieved through the following technical solutions technical goal.
A kind of novel pond pulling method, comprises the following steps:
1.1 build interim net cage:
1.1.1 interim net cage is selected to build address: to select the middle part that pond is longer, near position, bank as the address building interim net cage;
1.1.2 cage netting is prepared: prepare rectangle fishing net as cage netting, a minor face sewing iron chains in this cage netting four limit, its excess-three bar limit sews polyethylene hawser respectively;
1.1.3 build interim net cage: cage netting being made tiling with water in order, one end of iron chains is placed on the left side, makes cage netting naturally sink, then three are sewed the limit pull-out water surface of hawser; Except the reserved 2~4m of left end, a support bar is inserted every 0.8~1.2m in the limit of three sewing hawser, and is fixedly connected on support bar by the limit of sewing hawser; It is laid in after one end of cage netting iron chains is evened up at the bottom of pond, iron chains is pulled on the bank near the one end on bank; So, the left end interim net cage of uncovered rectangle it is formed for;
The 1.2 monolateral ring pools are drawn in the net:
1.2.1 draw in the net preparatively: select the mesh sheet of polyethylene material as sweep net, width in the middle of this sweep net, two is narrow, length is no less than 2/3rds of long limit, pond, upper infraclass rete cord is constituted by polyethylene hawser, one end length of upper infraclass rete cord exceeds this sweep net etting 12~16 meters, and on exaggerated rete cord, every 25~35cm sews the float that spherical foam plastics are made, rete cord one 6~10mm iron chains isometric with sweep net etting lower end of sewing of being laid off;
1.2.2 off line: to make infraclass on sweep net in order, it is prevented that dislocation; The longer one end of rete cord is for tractive, and the other end is fixedly connected on interim net cage away from the Far Left support bar of side, riverbank;
1.2.3 draw in the net: drawing in the net it is generally required to 4~5 people, 1 people buttresses interim net cage away from side, riverbank Far Left support bar, it is prevented that it is forgotten about it; 1 people steps on sweep net infraclass, and 1~2 people draws sweep net infraclass, and 1 people draws sweep net exaggerated; Start from the right side of interim net cage counterclockwise slowly at the uniform velocity to draw in the net along pond;
1.2.4 net is received: treat that sweep net is pulled on the left of interim net cage, during 2~4m place uncovered from interim net cage left end, start to receive net, slow down that sweep net is exaggerated pulls speed, sweep net infraclass is progressively pulled out the water surface and is placed on the bank, when sweep net is pulled to interim net cage left end open-mouth, keep and control the two ends of iron chains on cage netting respectively the interim net cage people away from Far Left support bar place, side, riverbank and people on the bank, guarantee sweep net lower end iron chains scrape the end by interim net cage uncovered time, pass through from the iron chains upper end of cage netting; Then one end iron chains uncovered for interim net cage is picked up gathering cage netting, in the cage netting lower end picked up through a thick bamboo pole, the iron chains of cage netting is ridden on this thick bamboo pole, interim net cage is made to close, untie simultaneously and be fixed on interim net cage away from the sweep net on the Far Left support bar of side, riverbank, receive;
1.3 select catches:Receiving at described 1.2.4 and insert a thick bamboo pole bottom the cage netting on the right side of the thick bamboo pole inserted in net step, this thick bamboo pole mobile, by interim net cage subregion;One jiao driven catches to interim net cage by the thick bamboo pole inserted in this step mobile, then selects catches, and the catches fallen short of specifications can be immediately placed in pond or first temporarily entrust one's child to the care of sb. and place in pond in time drawing in the net and terminate in interim net cage;
1.4 netting gears arrange:After drawing in the net to terminate, it is placed in bank is exposed to the sun shakeouing after support bar, cage netting and sweep net wash clean, then put storage in order.
Above-mentioned 1.1.3 builds in interim net cage step, every 8~10m in described interim net cage2Place a micro-pore oxygenation dish.
In the off line step of above-mentioned 1.2.2, the fixing end of sweep net must under the place of the interim net cage lower right corner water, be pulled to interim net cage fix away from Far Left support bar place, side, riverbank then along arriving upside on the right side of interim net cage again.
The present invention compared with prior art, has the positive effect that:
1. using the present invention to draw in the net, it is only necessary to 4~5 people, save a large amount of manpower, draw in the net slowly at the uniform velocity, labor-saving effect is notable.
2., if drawing in the net to sell, use the present invention to draw in the net, it is possible to carry out in advance, get on the bus together after the catches quantity in interim net cage reaches requirement, so both shorten haulage time, also significantly increase transport survival rate.
3. use the present invention to draw in the net, one end is fixed, one end is slowly at the uniform velocity moved, and aquatic animal mainly to swim voluntarily in interim net cage in the way of being driven, significantly improves capture rate, and the stirring of sediment of pond is less, after final receipts net, owing in advance the water body in net cage having been carried out oxygen supplement, catches have also shifted to an earlier date at net cage endoadaptation a period of time, not easily frightened, significantly reduce damage.
4. use the present invention to draw in the net, mainly support temporarily allowing catches swim voluntarily in interim net cage in the way of driveing, after interim net cage draws in, if quantity of the catch is inadequate, catches can be selected, with coarse wool bamboo, interim net cage is carried out subregion, support temporarily for one jiao that catches are rushed to interim net cage, then iron chains one end of interim net cage is completed again, interim net cage is uncovered, off line again draw in the net, until catch starts to select catches after reaching requirement, off-gauge is closed the catches required and is supported temporarily in net cage, draw in the net to operate without repeatedly experience, considerably reduce and draw in the net to damage.
5. using the present invention to draw in the net, pace is relatively slow, and mainly advances in the way of Bian Labian catches up with, and swims in interim net cage voluntarily to the response time that shrimps are enough, repeatedly draws in the net without experiencing in the short time, therefore will draw in the net loss and fall below lower degree. Therefore, the invention solves prior art the Fish effect that mobility is strong is better, the shrimps then effect more weak for mobility is poor, the problem of narrow application range.
6. using the present invention to draw in the net, facility is simple and easy, and required personnel are less, high efficiency, high capture rate, therefore significantly reduces and draws in the net cost.
Accompanying drawing explanation
Fig. 1 is pond structural representation in the present invention.
Detailed description of the invention
Below in conjunction with embodiment, accompanying drawing, the invention will be further described.
A kind of novel pond pulling method, comprises the following steps:
1.1 build interim net cage:
1.1.1 interim net cage is selected to build address: to select the middle part in pond (1) longer (1.1), near position, bank as the address building interim net cage (2);
1.1.2 cage netting is prepared: prepare rectangle fishing net as cage netting, a minor face sewing iron chains in this cage netting four limit, its excess-three bar limit sews polyethylene hawser respectively;
1.1.3 build interim net cage (2): cage netting being made tiling with water in order, one end of iron chains is placed on the left side, makes cage netting naturally sink, then three are sewed the limit pull-out water surface of hawser; Except the reserved 2~4m of left end, a support bar is inserted every 0.8~1.2m in the limit of three sewing hawser, and support bar inserts underground at the bottom of pond and fixes, and is fixedly connected on support bar by the limit of sewing hawser; It is laid in after one end of cage netting iron chains is evened up at the bottom of pond, iron chains is pulled on the bank near the one end on bank; So, being formed for the interim net cage of the uncovered rectangle of left end (2), interim net cage (2) area is about the 8~30% of pond area; Every 8~10m in interim net cage (2)2Place a micro-pore oxygenation dish;
The 1.2 monolateral ring pools are drawn in the net:
1.2.1 draw in the net preparatively: select the mesh sheet of polyethylene material as sweep net, width in the middle of this sweep net, two is narrow, length is no less than 2/3rds of pond (1) long limit, width selects according to the depth of water, general about 3m, upper infraclass rete cord is constituted by polyethylene hawser, one end length of upper infraclass rete cord exceeds this sweep net etting 12~16 meters, on exaggerated rete cord, every 25~35cm sews the float that spherical foam plastics are made, rete cord one 6~10mm iron chains isometric with sweep net etting lower end of sewing of being laid off;
1.2.2 off line: to make infraclass on sweep net in order, it is prevented that dislocation; The longer one end of rete cord is for tractive, and the other end is fixedly connected on interim net cage (2) away from the Far Left support bar of side, riverbank; The fixing end of sweep net must under interim net cage (2) lower right corner place water, arrive upside again then along interim net cage (2) right side and be pulled to interim net cage (2) and fix away from Far Left support bar place, side, riverbank;
1.2.3 draw in the net: drawing in the net it is generally required to 4~5 people, 1 people buttresses interim net cage (2) away from side, riverbank Far Left support bar, it is prevented that it is forgotten about it; 1 people steps on sweep net infraclass, and 1~2 people draws sweep net infraclass, and 1 people draws sweep net exaggerated; Start from the right side of interim net cage (2) counterclockwise slowly at the uniform velocity to draw in the net along pond (1);
1.2.4 net is received: treat that sweep net is pulled to interim net cage (2) left side, during 2~4m place uncovered from interim net cage (2) left end, start to receive net, slow down that sweep net is exaggerated pulls speed, sweep net infraclass is progressively pulled out the water surface and is placed on the bank, when sweep net is pulled to interim net cage (2) left end open-mouth, keep and control the two ends of iron chains on cage netting respectively the interim net cage (2) people away from Far Left support bar place, side, riverbank and people on the bank, guarantee sweep net lower end iron chains scrape the end by interim net cage (2) uncovered time, pass through from the iron chains upper end of cage netting; Then one end iron chains uncovered for interim net cage (2) is picked up gathering cage netting, in the cage netting lower end picked up through a thick bamboo pole, the iron chains of cage netting is ridden on this thick bamboo pole, interim net cage (2) is made to close, untie simultaneously and be fixed on interim net cage (2) away from the sweep net on the Far Left support bar of side, riverbank, receive;
1.3 select catches:Receiving at 1.2.4 and insert a thick bamboo pole bottom the cage netting on the right side of the thick bamboo pole inserted in net step, this thick bamboo pole mobile, by interim net cage (2) subregion; One jiao catches driven to interim net cage (2) by the thick bamboo pole inserted in this step mobile, then selecting catches, the catches fallen short of specifications can be immediately placed in pond (1) or first temporarily entrust one's child to the care of sb. and place in pond (1) in time drawing in the net and terminate in interim net cage (2);
1.4 netting gears arrange:After drawing in the net to terminate, it is placed in bank is exposed to the sun shakeouing after support bar, cage netting and sweep net wash clean, then put storage in order.

Claims (3)

1. a novel pond pulling method, comprises the following steps:
(1) interim net cage is built:
1.1.1 interim net cage is selected to build address: to select the middle part in pond (1) longer (1.1), near position, bank as the address building interim net cage (2);
1.1.2 cage netting is prepared: prepare rectangle fishing net as cage netting, a minor face sewing iron chains in this cage netting four limit, its excess-three bar limit sews polyethylene hawser respectively;
1.1.3 build interim net cage (2): cage netting being made tiling with water in order, one end of iron chains is placed on the left side, makes cage netting naturally sink, then three are sewed the limit pull-out water surface of hawser; Except the reserved 2~4m of left end, a support bar is inserted every 0.8~1.2m in the limit of three sewing hawser, and is fixedly connected on support bar by the limit of sewing hawser; It is laid in after one end of cage netting iron chains is evened up at the bottom of pond, iron chains is pulled on the bank near the one end on bank; So, the interim net cage of the uncovered rectangle of left end (2) it is formed for;
(2) the monolateral ring pool is drawn in the net:
1.2.1 draw in the net preparatively: select the mesh sheet of polyethylene material as sweep net, width in the middle of this sweep net, two is narrow, length is no less than 2/3rds of pond (1) long limit, upper infraclass rete cord is constituted by polyethylene hawser, one end length of upper infraclass rete cord exceeds this sweep net etting 12~16 meters, and on exaggerated rete cord, every 25~35cm sews the float that spherical foam plastics are made, rete cord one 6~10mm iron chains isometric with sweep net etting lower end of sewing of being laid off;
1.2.2 off line: to make infraclass on sweep net in order, it is prevented that dislocation; The longer one end of rete cord is for tractive, and the other end is fixedly connected on interim net cage (2) away from the Far Left support bar of side, riverbank;
1.2.3 draw in the net: drawing in the net it is generally required to 4~5 people, 1 people buttresses interim net cage (2) away from side, riverbank Far Left support bar, it is prevented that it is forgotten about it; 1 people steps on sweep net infraclass, and 1~2 people draws sweep net infraclass, and 1 people draws sweep net exaggerated; Start from the right side of interim net cage (2) counterclockwise slowly at the uniform velocity to draw in the net along pond (1);
1.2.4 net is received: treat that sweep net is pulled to interim net cage (2) left side, during 2~4m place uncovered from interim net cage (2) left end, start to receive net, slow down that sweep net is exaggerated pulls speed, sweep net infraclass is progressively pulled out the water surface and is placed on the bank, when sweep net is pulled to interim net cage (2) left end open-mouth, keep and control the two ends of iron chains on cage netting respectively the interim net cage (2) people away from Far Left support bar place, side, riverbank and people on the bank, guarantee sweep net lower end iron chains scrape the end by interim net cage (2) uncovered time, pass through from the iron chains upper end of cage netting; Then one end iron chains uncovered for interim net cage (2) is picked up gathering cage netting, in the cage netting lower end picked up through a thick bamboo pole, the iron chains of cage netting is ridden on this thick bamboo pole, interim net cage (2) is made to close, untie simultaneously and be fixed on interim net cage (2) away from the sweep net on the Far Left support bar of side, riverbank, receive;
(3) catches are selected:Receiving at described 1.2.4 and insert a thick bamboo pole bottom the cage netting on the right side of the thick bamboo pole inserted in net step, this thick bamboo pole mobile, by interim net cage (2) subregion;One jiao catches driven to interim net cage (2) by the thick bamboo pole inserted in this step mobile, then selecting catches, the catches fallen short of specifications can be immediately placed in pond (1) or first temporarily entrust one's child to the care of sb. and place in pond (1) in time drawing in the net and terminate in interim net cage (2);
(4) netting gear arranges:After drawing in the net to terminate, it is placed in bank is exposed to the sun shakeouing after support bar, cage netting and sweep net wash clean, then put storage in order.
2. novel pond according to claim 1 pulling method, it is characterised in that: described 1.1.3 builds in interim net cage (2) step, every 8~10m in described interim net cage (2)2Place a micro-pore oxygenation dish.
3. novel pond according to claim 1 and 2 pulling method, it is characterized in that: in the off line step of described 1.2.2, the fixing end of sweep net must under interim net cage (2) lower right corner place water, arrive upside again then along interim net cage (2) right side and be pulled to interim net cage (2) and fix away from Far Left support bar place, side, riverbank.
CN201610075715.2A 2016-02-03 2016-02-03 A kind of novel pond pulling method Expired - Fee Related CN105660553B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112674043A (en) * 2021-01-28 2021-04-20 江苏省农业科学院泰州农科所 Rapid fish pond sampling method

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CN1069167A (en) * 1992-07-17 1993-02-24 方圣元 Big water surface operation catching method
CN1200648A (en) * 1995-10-13 1998-12-02 马特拉公司 Design and method for trawl system cell
CN101647416A (en) * 2009-09-08 2010-02-17 中国水产科学研究院淡水渔业研究中心 Method for net fishing, transporting and temporarily culturing coilia ectenes parent fish in pool
KR101293582B1 (en) * 2012-05-29 2013-08-13 (주)제이엔텍 Light emitting net system for gathering fish and float having the same
CN104839102A (en) * 2015-05-25 2015-08-19 李成启 Semi-mechanized large-scale seafood capturing device
CN104938442A (en) * 2015-05-29 2015-09-30 安徽东方源农业开发有限公司 Large-water-surface fishing method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112674043A (en) * 2021-01-28 2021-04-20 江苏省农业科学院泰州农科所 Rapid fish pond sampling method

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