CN104222029B - A kind of method of quick crabbing - Google Patents
A kind of method of quick crabbing Download PDFInfo
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- CN104222029B CN104222029B CN201410183703.2A CN201410183703A CN104222029B CN 104222029 B CN104222029 B CN 104222029B CN 201410183703 A CN201410183703 A CN 201410183703A CN 104222029 B CN104222029 B CN 104222029B
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Abstract
The present invention relates to fishery to catch field, it is a kind of method and apparatus of quick crabbing, the method of its quick crabbing is that the net cage for being higher by the water surface is provided in river crab culture pond, in net cage upper end, anti-release apparatus is set, the net cage is divided into the first net cage and the second net cage, the top setting of separate mesh divides crab flexibility smooth plate, it is described divide at the top of crab flexibility smooth plate to be provided between the second net cage anti-return flexible smooth plate；Several cages are placed in river crab culture pond, the crab outlet of the cage is passed through the first net cage；Then water pump is placed on entering for cage and rapidly enters cage net with water pump bath irrigation channel crab at crab mouthful.In addition the device of quick crabbing is corresponding with the method for quick crabbing.Using the above method and device, can not only quick crabbing, and female, male river crab can be separated well.
Description
Technical field
The present invention relates to fishery to catch field, especially a kind of method and apparatus of quick crabbing.
Background technique
River crab, scientific name are Eriocheir sinensis, and popular name eriocheir sinensis, steamed crab are a kind of exclusive special economic species of China, point
Cloth is wider.River crab is very strong for the adaptability of environment, the upper world sixties many place expansion artificial propagations and artificial
Cultivation.Currently, river crab has been the important aquaculture kind in China.
River crab has a biological characteristics of breeding migration, October sexually matured river crab go downstream from lake, rivers into
Sea is laid eggs in estuary salt-fresh water intersection, and May, ovum was developed abnormal into crossing, and becomes megalops larva, megalops larva the first day of the lunar month water and on
Abnormal development is crab, is grown up in rivers, lake, sexually matured river crab enters sea again and raises up seed, and moves in circles.
The method for catching of river crab is mainly the following, and 1, captured with cage, cage is put into aquaculture pond, river crab enters
Net is manually received after cage.This method recruitment net is more, and it is not separated to catch sufficient river crab male and female.
2, artificial to pick up, start the upper ridge after river crab sexal maturity, manually picks up.This method can only be several on migration peak
It is used, and has crossed the no longer upper ridge of this period river crab, this method cannot be used again.Current cultural method takes dual anti-escape side mostly
Method, does not allow the upper ridge of river crab, be conducive to it is antitheft, while river crab move in water consumption energy ratio land it is few, be conducive to river crab and keep
Weight.This method cannot use in lake and big water surface aquaculture.
3, Gan Tang is touched, and water is drained, and river crab can manually be touched in the mud of pond, this method large labor intensity, the amount of labour
It is bigger, because the temporarily feeding dead meeting in mechanical damage reason river is very big.
Chinese invention patent application CN 103444664A discloses a kind of Novel illuminant crab trap-cage, it is in reinforcing bar frame body
The inboard of two-end part is connected with a Gu Longquan, is connected with one on Gu Longquan and hangs nose；Reinforcing bar frame body is circle, and the big centre in both ends is slightly
It is small, steel wire piece is enclosed on the circular framework of the external side of steel skeleton；Two cephalic pars of reinforcing bar frame body are connected with one into crab mouthful,
Extend inwards into river crab mouth and is connected with a soft inverted beard；Luminous fluorescent ball and bait are placed at the intermediate position of reinforcing bar frame body
Bag, luminous fluorescent ball and bait bag are connected to the upper surface of reinforcing bar frame body by bait bag drawstring.Although the invention passes through luminous fluorescent
Ball attracts river crab to enter trap for catching crabs with bait bag, but does not separate river crab male and female.
Summary of the invention
It river crab is female, male separated can catch the technical problem to be solved by the invention is to provide a kind of saving manpower and quickly
The method and apparatus of crab.
In order to solve the above technical problems, a kind of method of quick crabbing of the present invention is that height is provided in river crab culture pond
Anti- release apparatus is arranged in net cage upper end in the net cage of the water surface out, and the net cage is separated into the first net cage and the second net cage, described
Separate mesh top is connected with a point crab flexibility smooth plate, it is described divide anti-return is provided at the top of crab flexibility smooth plate between the second net cage
Flexible smooth plate；Several cages are placed in river crab culture pond, the crab outlet of the cage is passed through the first net cage；Then by water pump
It is placed on entering at crab mouthful in 3-8 meters of ranges for cage, rapidly enters cage net with water pump bath irrigation channel crab.
The invention also includes a kind of devices that quick crabbing is carried out using the above method, including are placed in river crab culture pond
Water pump, further include the net cage for being higher by the river crab culture pond water surface, the net cage is divided into the first net cage and the second net cage, the river
Place several cages in crab aquaculture pond, the crab outlet of the cage is passed through the first net cage, and what the water pump was placed on cage enters crab mouthful
Place；The net cage upper end is connected with anti-release apparatus, and the separate mesh upper end is connected with a point crab flexibility smooth plate, described to divide crab soft
Property smooth plate at the top of with to tilted anti-of the second net cage return flexible smooth plate, the anti-folder for returning flexible smooth plate and separate mesh
Angle divides the height of crab flexibility smooth plate using the mean breadth of female crab as parameter setting less than 90 °；Described divides crab flexibility smooth plate
Height be less than or equal to female crab mean breadth, generally divide crab flexibility smooth plate height be 25-35cm.
Further, the anti-release apparatus is the flexible smooth plate for being connected to net cage upper end, it is described flexibility smooth plate to
Inclination on the inside of net cage, the angle between the flexibility smooth plate and net cage side wall is less than 90 °.
Further, by the bevel edge of four sections of trapezoidal flexible smooth plates, successively ring connects the flexible smooth plate, described
The bottom of every section of flexible smooth plate is fixedly connected with the upper end edge of net cage.
Further, it is fixed with column on the outside of net cage corner in the river crab culture pond, the net cage corner passes through drawing
Rope is connected with column.
After the above method and device, like pushing up the biological characteristics of water according to river crab, it is fast with water pump bath irrigation channel crab
Speed enters cage net, and the river crab in cage net, which climbs into the first net cage, temporarily to store, and improves and captures effect；It is male using same pond river crab
Big female small individual difference, the strong feature of male crab climbing ability, is moulded in the first net cage and the second net cage separate mesh upper inside wall
What flitch was arranged to appropriate height divides crab plate, allows male crab to enter the second net cage from the first net cage and accomplishes that female, male river crab separates.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the quick Crabbing device of the present invention.
Fig. 2 a is the structural schematic diagram on the quick Crabbing device net cage water surface of the present invention.
Fig. 2 b is the structural schematic diagram of the flexible smooth plate of the present invention.
Fig. 2 c is the structural schematic diagram that the present invention divides crab, prevents male crab returning part.
Fig. 2 d is the angle schematic diagram of the present invention flexible smooth plate and net cage side wall.
Fig. 3 is the structural schematic diagram of the smooth baffle of the present invention.
In figure: 1 is the first net cage, and 2 be the second net cage, and 4 be drawstring, and 5 be column, and 6 be flexible smooth plate, and 7 be net cage side
Wall, 8 be smooth baffle.
301 be separate mesh, and 302 is divide crab flexibility smooth plate, and 601 is flexible smooth for second for the first flexible smooth plate, 602
Plate, 603 be third flexibility smooth plate, and 604 be the 4th flexible smooth plate, and 605 be hollow region, and 606 return flexible smooth plate to be anti-.
Specific embodiment
A kind of method of quick crabbing of the present invention is that the net cage for being higher by the water surface is provided in river crab culture pond, on net cage
End is arranged anti-release apparatus, and the net cage is by separate mesh and crab baffle 3 is divided to be divided into the first net cage 1 and the second net cage 2, and described point
Filter and divides on crab baffle 301 and be connected with a point crab flexibility smooth plate 302, it is described to divide 302 top of crab flexibility smooth plate and the second net
It is provided between case and prevents returning flexible smooth plate 606；Several cages are placed in river crab culture pond, the crab outlet of the cage is passed through
First net cage；Then water pump is placed on entering for cage and rapidly enters cage net with water pump bath irrigation channel crab at crab mouthful.Work as river in this way
After crab climbs into cage from cage entrance, the first net cage 1 will be entered.River crab walking characteristic, the density of river crab is close to water, in water
It can be swum with leg, can be creeped on land.The sex characteristic of river crab, in same growing environment, male is generally bigger than female,
Male to climb up and over ability bigger than female.The cultivation of river crab mainly divides three phases:
First stage, seed breeding, river crab post-coitum development of fertilized ova is at megalops larva.
Second stage, Growth, megalops larva are trained crab species.
Phase III cultivates at crab, and crab species are formed commodity crab.In the artificial breeding of river crab, crab species and commodity crab are caught
Fishing will put into a large amount of labour.The sale of commodity crab, will male and female separate after, by specification sale.Like pushing up using river crab
The biological characteristics of water rapidly enter cage net with water pump bath irrigation channel crab, and the river crab in cage net climbs into net cage 1 and temporarily stores, mentions
Height captures effect.Because the first net cage 1 and 2 upper end of the second net cage are provided with anti-release apparatus, river crab enters net from cage
It can not just escape after case.In addition, the feature different with female crab climbing ability using male crab, male crab can be out of first net cage 1
It climbs up separate mesh to divide crab baffle 3 and enter in the second net cage 2, and is arranged between part crab baffle 3 and the second net cage on separate mesh
Have and prevent returning flexible smooth plate 6, can not be returned again in the first net cage 1 into the male crab in net cage 2, can preferably be convenient for will be male
Crab and female crab are separately sold.
The invention also includes a kind of devices that quick crabbing is carried out using the above method shown in a as shown in Figure 1, Figure 2, including place
Water pump in river crab culture pond further includes the net cage for being higher by the river crab culture pond water surface, and the net cage is by netted net cage side wall 7
It encloses, in order to preferably prevent river crab from crawling out out of net cage, net cage upper end of the present invention is provided with anti-release apparatus.It is described
Column 5 is fixed in river crab culture pond on the outside of net cage corner, first net cage and the second net cage corner pass through drawstring 4 and column
5 are connected, and are so well fixed the shape of net cage by drawstring, the shape of net cage is fixed as rectangle by present embodiment.
As shown in Fig. 2 a and Fig. 2 c, the separate mesh 3 that the net cage is higher by the water surface is separated as the first net cage 1 and the second net cage
2, a point crab flexibility smooth plate 302 is connected on separate mesh 3, divides the height of crab flexibility smooth plate 302 and male crab foot is wide is adapted, it is high
Degree H is 25-35cm.As shown in Fig. 2 a and Fig. 2 c, male crab climbs back again after climbing into the second net cage 2 from the first net cage 1 in order to prevent, institute
It states 3 upper end of separate mesh and connects tilted anti-of oriented second net cage 2 and return flexible smooth plate 606, it is described anti-to return flexible smooth plate 606
Angle with separate mesh 3 is β, and β is less than 90 °.When Damxung crab climbs to 3 upper end of separate mesh so flexible smooth plate can be returned along anti-
606 slide into the second net cages, and the male crab in the second net cage just returns flexible smooth plate 606 by anti-when climbing along separate mesh 3
It blocks, separate mesh 3 can not be crossed.Several cages are placed in the river crab culture pond, the crab outlet of the cage is passed through the first net
Case 1 enters crab mouthful place for what the water pump was placed on cage, and in this way when pumping for water pump, since river crab likes top water, river crab will be climbed
Enter cage enters crab mouthful, then enters in the first net cage 1 along cage from the crab outlet of cage.Since male crab has stronger climb
Climbing ability, male crab, which will lead to, climbs up a point crab baffle 3 and enters in the second net cage 2, thus male crab and female crab are distinguished, point
Can achieve 80% from rate, which offers a saving 40% it is artificial, saved cost.
Further, as shown in Fig. 2 a, Fig. 2 b, the anti-release apparatus of present embodiment is to be connected to the first net cage 1 and the
Two net cages, 2 upper end flexibility smooth plate 6.Since the shape of net cage is determined as rectangle, so the flexible smooth plate 6 of present embodiment
Including the first flexible smooth plate 602 of flexible smooth plate 601, second, the flexible smooth plate 604 of third flexibility smooth plate the 603, the 4th；
Successively ring connects into flexible smooth plate 6 bevel edge of four sections of trapezoidal flexible smooth plates, including the first flexible smooth plate 601, the
Two flexible smooth plates 602, the flexible smooth plate 604 of third flexibility smooth plate the 603, the 4th form hollow region 605 in ring.It is described every
The bottom of the flexible smooth plate of section and the upper end edge of the first net cage and the second net cage entirety are mutually fitted, the first flexible smooth plate 601,
The bottom of the flexible smooth plate 604 of second flexible smooth plate 602, third flexibility smooth plate the 603, the 4th and the first net cage 1 and the
The upper end edge of two net cages 2 connects.Described every section flexible smooth plate is every section described to inclination on the inside of the first net cage and the second net cage
Angle between flexible smooth plate and the first net cage, the second net cage side wall is less than 90 degree.As shown in Figure 2 d, the first flexible light in figure
The angle of slide plate 601 and net cage side wall 7 is θ, θ less than 90 degree, and so on, other flexibility smooth plates and net cage side wall 7
Angle is again smaller than 90 degree.Dotted line is the track of creeping of river crab in figure, when river crab climbs to flexible light slide plate along net cage side wall 7 upwards
When on 601, since θ is less than 90 degree, flexible smooth plate 601 is tilted down, and river crab can drop into net cage again, more efficient in this way
Prevent river crab from climbing out of net cage.
Certainly, release apparatus of putting of the invention is also possible to the light for being vertically fixed on net cage sidewall upper as shown in Figure 3
Sliding baffle 8, such transformation are within the scope of the present invention.
Although specific embodiments of the present invention have been described above, those skilled in the art should be appreciated that this
It is merely illustrative of, various changes or modifications can be made to present embodiment, without departing from the principle and substance of the present invention,
Protection scope of the present invention is only limited by the claims that follow.
Claims (1)
1. a kind of method of quick crabbing, it is characterised in that: be provided with quick Crabbing device in river crab culture pond；It is supported in river crab
It grows and places several cages in pond, the crab outlet of the cage is passed through the first net cage；Then water pump is placed on the entering at crab mouthful of cage
Cage net is rapidly entered with water pump bath irrigation channel crab；
The quick Crabbing device includes the water pump being placed in river crab culture pond, further includes being higher by the river crab culture pond water surface
Net cage, the net cage are divided into the first net cage and the second net cage；The net cage upper end is connected with anti-release apparatus, separate mesh upper end
It is connected with a point crab flexibility smooth plate, it is anti-to return flexible smooth plate setting and dividing at the top of crab flexibility smooth plate and to the second net cage introversion
Tiltedly, the anti-angle for returning flexible smooth plate and separate mesh is less than 90 °；
Divide the height of crab flexibility smooth plate using the mean breadth of female crab as parameter setting；The height for dividing crab flexibility smooth plate
Less than or equal to the mean breadth of female crab；The anti-release apparatus is the flexible smooth plate for being connected to net cage upper end, the flexible light
Slide plate is to inclination on the inside of net cage, and the angle between the flexibility smooth plate and net cage side wall is less than 90 °；It is described flexibility smooth plate by
Successively ring connects the bevel edge of four sections of trapezoidal flexible smooth plates, and the bottom of every section of flexible smooth plate and the upper end edge of net cage are solid
Fixed connection；Column is fixed in the river crab culture pond on the outside of net cage corner, the net cage corner is connected by drawstring with column
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183703.2A CN104222029B (en) | 2014-05-04 | 2014-05-04 | A kind of method of quick crabbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183703.2A CN104222029B (en) | 2014-05-04 | 2014-05-04 | A kind of method of quick crabbing |
Publications (2)
| Publication Number | Publication Date |
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| CN104222029A CN104222029A (en) | 2014-12-24 |
| CN104222029B true CN104222029B (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410183703.2A Active CN104222029B (en) | 2014-05-04 | 2014-05-04 | A kind of method of quick crabbing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106489808A (en) * | 2016-10-26 | 2017-03-15 | 江苏禾富农业科技发展有限公司 | A kind of lobster culturing pool drawing-in device |
| CN109006719A (en) * | 2017-06-10 | 2018-12-18 | 周长宾 | One seed shrimp crab automatic separating apparatus |
| CN112931430B (en) * | 2021-04-19 | 2023-06-06 | 苏州市毛氏阳澄湖水产发展有限公司 | Fishing facility and fishing method for macrobrachium rosenbergii in crab and shrimp double main culture mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4607595A (en) * | 1985-03-25 | 1986-08-26 | The University Of South Florida | Rheotactic shrimp harvester |
| CN2200914Y (en) * | 1994-09-24 | 1995-06-21 | 陈昆山 | Crab-catching cage |
| CN101766155A (en) * | 2010-01-29 | 2010-07-07 | 苏志烽 | Pond ground cage for catching crayfishes |
| CN102487872A (en) * | 2011-12-30 | 2012-06-13 | 上海海洋大学 | Eriocheir sinensis juvenile crab whole process automatic graded raising technique |
| CN103155886A (en) * | 2013-03-04 | 2013-06-19 | 中国水产科学研究院东海水产研究所 | Method of screening and separating Chinese mitten juvenile crabs in batch mode |
| CN103858831A (en) * | 2014-03-25 | 2014-06-18 | 姚丰卫 | Novel crabbing device |
-
2014
- 2014-05-04 CN CN201410183703.2A patent/CN104222029B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4607595A (en) * | 1985-03-25 | 1986-08-26 | The University Of South Florida | Rheotactic shrimp harvester |
| CN2200914Y (en) * | 1994-09-24 | 1995-06-21 | 陈昆山 | Crab-catching cage |
| CN101766155A (en) * | 2010-01-29 | 2010-07-07 | 苏志烽 | Pond ground cage for catching crayfishes |
| CN102487872A (en) * | 2011-12-30 | 2012-06-13 | 上海海洋大学 | Eriocheir sinensis juvenile crab whole process automatic graded raising technique |
| CN103155886A (en) * | 2013-03-04 | 2013-06-19 | 中国水产科学研究院东海水产研究所 | Method of screening and separating Chinese mitten juvenile crabs in batch mode |
| CN103858831A (en) * | 2014-03-25 | 2014-06-18 | 姚丰卫 | Novel crabbing device |
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| CN104222029A (en) | 2014-12-24 |
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