CN104222029A - Rapid crabbing method and device - Google Patents
Rapid crabbing method and device Download PDFInfo
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- CN104222029A CN104222029A CN201410183703.2A CN201410183703A CN104222029A CN 104222029 A CN104222029 A CN 104222029A CN 201410183703 A CN201410183703 A CN 201410183703A CN 104222029 A CN104222029 A CN 104222029A
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- net cage
- crab
- smooth plate
- flexible smooth
- cage
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Abstract
The invention relates to the field of fishing and discloses a rapid crabbing method and device. The rapid crabbing method includes setting a net cage above the water level in a river crab culturing pool; setting an escaping preventive device at the upper end of the net cage; dividing the bet cage into a first net cage part and a second net cage part; setting a flexible smooth plate is arranged on the upper portion of a dividing net to separate the river crabs; an anti-return flexible smooth plate is arranged between the top of the flexible smooth plate and the second net cage part; placing a plurality of cages in the river crab culturing pool, to be specific, outlets of the cages are communicated with the first net cage part; subjecting a water pump to flushing at inlets of the cages, thus the river crabs are rapidly guided to enter the cages. The rapid crabbing device corresponds to the rapid crabbing method. By the use of the rapid crabbing method and device, the river crabs are rapidly captured, and female crabs are conveniently separated from the male crabs.
Description
Technical field
The present invention relates to fishery and fish for field, the method and apparatus of particularly a kind of quick crabbing.
Background technology
River crab, formal name used at school is Eriocheir sinensia, popular name eriocheir sinensis, steamed crab, is Chinese exclusive a kind of special economic species, distributes wider.River crab is very strong for the adaptive capacity of environment, and a lot of place was launched artificial propagation and propagated artificially the upper world sixties.At present, the aquaculture kind that river crab Yi Shi China is important.
River crab has the biological property of breeding migration, October, sexually matured river crab was from lake, go downstream in rivers into sea, at estuary salt-fresh water, intersection lays eggs, and May, ovum entered to grow abnormal, become megalops larva, the north water of megalops larva and upper growth metamorphosis is crab, at rivers, grows up in lake, sexually matured river crab again enters sea and raises up seed, and moves in circles.
The method for catching of river crab mainly contains following several, 1, with cage catch, cage is put into culturing pool, and river crab manually receives net after entering cage.This method recruitment net is many, and it is not separated to catch sufficient river crab male and female.
2, manually pick up, when starting the upper ridge after river crab sexual maturity, with manually picking up.This method can only use on migration peak for several days, and crossed this river crab in period and no longer gone up the ridge, this method can not be used again.Current cultural method is taked dually anti-to escape method mostly, does not allow the upper ridge of river crab, is beneficial to antitheft, and the energy Ratios land that consumes at underwater exercise of river crab is few simultaneously, is beneficial to river crab maintenance body weight.This method can not use in lake and large water surface aquaculture.
3, Gan Tang touches, and Chi Shui is drained, and river crab can in the mud of pond, and with manually touching, this method labour intensity is large, and the amount of labour is larger, and the death that the damage reason river because of machinery is supported temporarily can be very large.
Chinese invention patent application CN 103444664A discloses a kind of Novel illuminant crab trap-cage, and it is connected with a Gu Longquan in the inboard of reinforcing bar support body two-end part, Gu Longquan is connected with one and hangs nose; Reinforcing bar support body is circular, and large centre, two is smaller, and the circular framework of the external side of steel skeleton is enclosed with steel wire sheet; Two cephalic pars of reinforcing bar support body are connected with one and enter crab mouth, enter river crab mouth and extend inwards and be connected with a soft inverted beard; Be placed with luminous fluorescent ball and bait bag in the middle part of reinforcing bar support body, luminous fluorescent ball and bait bag are connected to above reinforcing bar support body by bait bag stay cord.Although this invention attracts river crab to enter trap for catching crabs by luminous fluorescent ball and bait bag, not by river crab male and female separately.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind ofly saves manpower and can the method and apparatus of quick crabbing that separates of river crab is female, hero.
For solving above-mentioned technical problem, the method of a kind of quick crabbing of the present invention is in river crab culture pond, be provided with the net cage exceeding the water surface, in net cage upper end, anti-release apparatus is set, described net cage is separated into the first net cage and the second net cage, described separate mesh top is connected with the flexible smooth plate of point crab, is provided with and prevents returning flexible smooth plate between the described point of flexible smooth plate top of crab and the second net cage; In river crab culture pond, place some cages, the crab outlet of described cage passes into the first net cage; What then water pump is placed on cage enters within the scope of crab mouth place 3-8 rice, enters cage net fast with water pump bath irrigation channel crab.
The present invention also comprises and a kind ofly applies the device that said method carries out quick crabbing, comprise the water pump be placed in river crab culture pond, also comprise the net cage exceeding the river crab culture pond water surface, described net cage is divided into the first net cage and the second net cage, some cages are placed in described river crab culture pond, the crab outlet of described cage passes into the first net cage, and what described water pump was placed on cage enters crab mouth place; Described net cage upper end is connected with anti-release apparatus, described separate mesh upper end is connected with the flexible smooth plate of point crab, flexible smooth plate is returned with to tilted anti-of the second net cage in the flexible smooth plate top of described point of crab, the described anti-angle returning flexible smooth plate and separate mesh is less than 90 °, with the mean breadth of female crab for optimum configurations divides the height of crab flexibility smooth plate; The height of the flexible smooth plate of described point crab is less than or equal to the mean breadth of female crab, and the flexible smooth plate height of general point crab is 25-35cm.
Further, described anti-release apparatus is the flexible smooth plate being connected to net cage upper end, and described flexible smooth plate tilts inside net cage, and the angle between described flexible smooth plate and net cage sidewall is less than 90 °.
Further, described flexible smooth plate by four sections of trapezoidal flexible smooth plates hypotenuse successively articulating form, the bottom of described every section of flexible smooth plate is fixedly connected with the edge, upper end of net cage.
Further, be fixed with column in described river crab culture pond outside net cage bight, described net cage bight is connected with column by stay cord.
After adopting said method and device, like according to river crab the biological property pushing up water, enter cage net fast with water pump bath irrigation channel crab, the river crab in cage net climbs into storage temporarily in the first net cage, improves and catches effect; Utilize same pond river crab female little individual difference great and mighty or powerful, the feature that male crab climbing ability is strong, be arranged to point crab plate of suitably height at the first net cage and the second net cage separate mesh upper inside wall plastic plate, allow male crab enter the second net cage from the first net cage and accomplish that female, male river crab separately.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the quick Crabbing device of the present invention.
Fig. 2 a is the structural representation on the present invention's quick Crabbing device net cage water surface.
Fig. 2 b is the structural representation of the flexible smooth plate of the present invention.
Fig. 2 c is that the present invention divides crab, prevents the structural representation of male crab returning part.
Fig. 2 d is the angle schematic diagram of the flexible smooth plate of the present invention and net cage sidewall.
Fig. 3 is the structural representation of the smooth baffle plate of the present invention.
In figure: 1 is the first net cage, 2 is the second net cage, and 4 is stay cord, and 5 is column, and 6 is flexible smooth plate, and 7 is net cage sidewall, and 8 is smooth baffle plate.
301 is separate mesh, and 302 is the flexible smooth plate of point crab, and 601 is the first flexible smooth plate, and 602 is the second flexible smooth plate, and 603 is the 3rd flexible smooth plate, and 604 is the 4th flexible smooth plate, and 605 is hollow region, and 606 return flexible smooth plate for anti-.
Embodiment
The method of a kind of quick crabbing of the present invention is in river crab culture pond, be provided with the net cage exceeding the water surface, in net cage upper end, anti-release apparatus is set, described net cage is divided into the first net cage 1 and the second net cage 2 by separate mesh and a point crab baffle plate 3, described separate mesh and point crab baffle plate 301 are connected with the flexible smooth plate 302 of point crab, are provided with between described point of flexible smooth plate 302 top of crab and the second net cage and prevent returning flexible smooth plate 606; In river crab culture pond, place some cages, the crab outlet of described cage passes into the first net cage; Then the crab mouth place water pump bath irrigation channel crab that enters water pump being placed on cage enters cage net fast.Like this after river crab climbs into cage from cage entrance, just can enter the first net cage 1.River crab walking characteristic, the density of river crab is close to water, and in water, available leg swimming, can creep on land.The sex characteristic of river crab, in same growing environment, male generally than greatly female, male climb up and over can force rate greatly female.The cultivation of river crab mainly divides three phases:
First stage, seed breeds, and river crab post-coitum development of fertilized ova becomes megalops larva.
Second stage, Growth, megalops larva is trained crab kind.
Phase III, become crab cultivation, crab kind is formed commodity crab.In the propagating artificially of river crab, crab kind and fishing for of commodity crab all will drop into a large amount of labours.The sale of commodity crab, after all wanting male and female separately, sells by specification.Utilize river crab to like pushing up the biological property of water, enter cage net fast with water pump bath irrigation channel crab, the river crab in cage net climbs into net cage 1 and stores temporarily, improves and catches effect.Because the first net cage 1 and the second net cage 2 upper end are provided with anti-release apparatus, so river crab just cannot escape out after cage enters net cage.In addition, utilize the feature that male crab is different with female crab climbing ability, male crab can be climbed up separate mesh and divided crab baffle plate 3 and enter in the second net cage 2 in the first net cage 1, and be provided with between separate mesh upper part crab baffle plate 3 and the second net cage and anti-return flexible smooth plate 6, the male crab entered in net cage 2 can not return in the first net cage 1 again, can better be convenient to male crab and female crab to divide on sale.
The present invention shown in a also comprises and a kind ofly applies the device that said method carries out quick crabbing as shown in Figure 1, Figure 2, comprise the water pump be placed in river crab culture pond, also comprise the net cage exceeding the river crab culture pond water surface, described net cage is enclosed by netted net cage sidewall 7 and forms, in order to better prevent river crab from crawling out in net cage, net cage upper end of the present invention is provided with anti-release apparatus.Be fixed with column 5 outside net cage bight in described river crab culture pond, described first net cage is connected with column 5 by stay cord 4 with the second net cage bight, well the shape of net cage is fixed like this by stay cord, and the shape of net cage is fixed as rectangle by present embodiment.
As shown in Fig. 2 a and Fig. 2 c, it is the first net cage 1 and the second net cage 2 that described net cage is separated by the separate mesh 3 exceeding the water surface, separate mesh 3 is connected with the flexible smooth plate 302 of point crab, the height of the flexible smooth plate 302 of point crab and male crab pin is wide adapts, height H is 25-35cm.As shown in Fig. 2 a and Fig. 2 c, climb back again after the first net cage 1 climbs into the second net cage 2 to prevent male crab, described separate mesh 3 upper end is connected with returns flexible smooth plate 606 to tilted anti-of the second net cage 2, and described anti-to return flexible smooth plate 606 be that β, β are less than 90 ° with the angle of separate mesh 3.Flexible smooth plate 606 can be returned slip in the second net cage along anti-when such Damxung crab climbs to separate mesh 3 upper end, and just be returned flexible smooth plate 606 block by anti-when the male crab in the second net cage is climb along separate mesh 3, separate mesh 3 cannot be crossed.Some cages are placed in described river crab culture pond, the crab outlet of described cage passes into the first net cage 1, what described water pump is placed on cage enters crab mouth place, like this when pumping for water pump, because river crab is liked pushing up water, what river crab just can climb into cage enters crab mouth, then enters in the first net cage 1 from the crab outlet of cage along cage.Because male crab has stronger climbing ability, male crab just can be led to and climbed up a point crab baffle plate 3 and enter in the second net cage 2, and so just male crab and female crab are made a distinction, separation rate can reach 80%, which offers a saving 40% artificial, saved cost.
Further, as shown in Fig. 2 a, Fig. 2 b, the anti-release apparatus of present embodiment is for being connected to the flexible smooth plate 6 of the first net cage 1 and the second net cage 2 upper end.Due to the shape of net cage is defined as rectangle, so the flexible smooth plate 6 of present embodiment comprises the flexible smooth plate 602 of the first flexible smooth plate 601, second, the 3rd flexible smooth plate 603, the 4th flexible smooth plate 604; The hypotenuse of described four sections of trapezoidal flexible smooth plates successively articulating forms flexible smooth plate 6, comprises the flexible smooth plate 602 of the first flexible smooth plate 601, second, the 3rd flexible smooth plate 603, the 4th flexible smooth plate 604 form hollow region 605 in ring.The bottom of described every section of flexible smooth plate is fitted mutually with the edge, upper end of the first net cage and the second net cage entirety, and the bottom of the flexible smooth plate 602 of the first flexible smooth plate 601, second, the 3rd flexible smooth plate 603, the 4th flexible smooth plate 604 is connected with the edge, upper end of the first net cage 1 and the second net cage 2.Described every section of flexible smooth plate tilts inside the first net cage and the second net cage, and the angle between described every section of flexible smooth plate and the first net cage, the second net cage sidewall is less than 90 degree.As shown in Figure 2 d, in figure, the first flexible smooth plate 601 is that θ, θ are less than 90 degree with the angle of net cage sidewall 7, and by that analogy, other flexible smooth plate and the angle of net cage sidewall 7 are also less than 90 degree.In figure, dotted line is the track of creeping of river crab, when river crab upwards climbs on flexible smooth plate 601 along net cage sidewall 7, because θ is less than 90 degree, flexible smooth plate 601 is downward-sloping, river crab can drop into again in net cage, so more effectively prevents river crab from climbing out of net cage.
Certainly, release apparatus of putting of the present invention also can be the smooth baffle plate 8 being vertically fixed on net cage sidewall upper as shown in Figure 3, and such conversion all drops within protection scope of the present invention.
Although the foregoing describe the specific embodiment of the present invention; but those skilled in the art are to be understood that; these only illustrate; various changes or modifications can be made to present embodiment; and not deviating from principle of the present invention and essence, protection scope of the present invention is only defined by the appended claims.
Claims (6)
1. the method for a quick crabbing, it is characterized in that: in river crab culture pond, be provided with the net cage exceeding the water surface, in net cage upper end, anti-release apparatus is set, described net cage is divided into the first net cage and the second net cage, described separate mesh top is connected with the flexible smooth plate of point crab, is provided with and prevents returning flexible smooth plate between the described point of flexible smooth plate top of crab and the second net cage; In river crab culture pond, place some cages, the crab outlet of described cage passes into the first net cage; Then the crab mouth place water pump bath irrigation channel crab that enters water pump being placed on cage enters cage net fast.
2. the device of a quick crabbing, it is characterized in that: comprise the water pump be placed in river crab culture pond, also comprise the net cage exceeding the river crab culture pond water surface, described net cage is divided into the first net cage and the second net cage, some cages are placed in described river crab culture pond, the crab outlet of described cage passes into the first net cage, and what described water pump was placed on cage enters crab mouth place; Described net cage upper end is connected with anti-release apparatus, described separate mesh upper end is connected with the flexible smooth plate of point crab, flexible smooth plate is returned with to tilted anti-of the second net cage in the flexible smooth plate top of described point of crab, and the described anti-angle returning flexible smooth plate and separate mesh is less than 90 °.
3. according to the device of a kind of quick crabbing according to claim 2, it is characterized in that: with the mean breadth of female crab for optimum configurations divides the height of the flexible smooth plate of crab; The height of the flexible smooth plate of described point crab is less than or equal to the mean breadth of female crab.
4. according to the device of a kind of quick crabbing according to claim 2, it is characterized in that: described anti-release apparatus is the flexible smooth plate being connected to net cage upper end, described flexible smooth plate tilts inside net cage, and the angle between described flexible smooth plate and net cage sidewall is less than 90 °.
5., according to the device of a kind of quick crabbing according to claim 4, it is characterized in that: described flexible smooth plate by four sections of trapezoidal flexible smooth plates hypotenuse successively articulating form, the bottom of described every section of flexible smooth plate is fixedly connected with the edge, upper end of net cage.
6. according to the device of a kind of quick crabbing according to claim 2, it is characterized in that: be fixed with column outside net cage bight in described river crab culture pond, described net cage bight is connected with column by stay cord.
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 |
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| Publication Number | Publication Date |
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| CN104222029A true CN104222029A (en) | 2014-12-24 |
| CN104222029B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112931430A (en) * | 2021-04-19 | 2021-06-11 | 苏州市毛氏阳澄湖水产发展有限公司 | Facility and method for catching macrobrachium rosenbergii in crab and shrimp double main culture mode |
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 |
-
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 |
Non-Patent Citations (1)
| Title |
|---|
| 江苏省淡水水产研究所: "《河蟹养殖一月通》", 31 July 2010, 中国农业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112931430A (en) * | 2021-04-19 | 2021-06-11 | 苏州市毛氏阳澄湖水产发展有限公司 | Facility and method for catching macrobrachium rosenbergii in crab and shrimp double main culture mode |
| 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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| CN104222029B (en) | 2019-09-03 |
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