CN203709039U - Fish zygote collector - Google Patents
Fish zygote collector Download PDFInfo
- Publication number
- CN203709039U CN203709039U CN201420066907.3U CN201420066907U CN203709039U CN 203709039 U CN203709039 U CN 203709039U CN 201420066907 U CN201420066907 U CN 201420066907U CN 203709039 U CN203709039 U CN 203709039U
- Authority
- CN
- China
- Prior art keywords
- frame
- collector
- fish
- framework
- mesh bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model provides a fish zygote collector, which is provided with a net bag; net opening cloth of the net bag is placed on a frame; the frame [4] is provided with a buoyancy device [3]; the buoyancy provided for the frame by the float device is deviated from the gravity center of the frame; the frame is also tied with two traction ropes [2]; the net bag is formed by a barrel body [5] and a bottom [6]; the barrel body is formed by bolting silks of 80 meshes; the bottom of the barrel body is formed by white cloth, and the tail end of the bottom of the white cloth is bound up by a rope. Compared with the prior art, the fish zygote collector has the advantages that the feature that the density of zygotes is lower than water is used, convenience is brought for the collection of the zygotes in a spawning pool, filtering by water releasing is not needed, the unfavorable influence to the zygotes is reduced, the hatching rate is improved, and the fish zygote collector is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of fish oosperm gathering unit, is that the fertilized egg during artificial breeding is collected netting gear.
Background technology
It is an important component part in whole aquaculture industry that Technique in Fishes is grown seedlings, and between nursery stage, the height of hatchability of fertile eggs and larvae survival rate directly has influence on the economic benefit of growing seedlings and producing.As everyone knows, affect a lot of because have of fish oosperm incubation rate, as the quality of fertilized egg, hatching water temperature, salinity, dissolved oxygen etc.The proportion of fish-egg is less than the proportion of water, and for the spawning pond of not settling the bed of laying eggs, fertilized egg will be bubbled through the water column.At present, in Technique in Fishes seedling raising process, from spawning pond, collect fertilized egg mostly number be by trap drainage method, be about to spawning pond upper water and by overflow pipe, discharge and with net, connect ovum at delivery port, this mode is larger to the damage of fertilized egg; Another drags for blanket net, but this mode efficiency is too low.
Summary of the invention
For for above-mentioned the deficiencies in the prior art, the utility model is exactly will be according to fish oosperm buoyancy characteristic, the technical characterstic of collecting in conjunction with fertilized egg in fish hatching process, provides a kind of fish oosperm gathering unit, to improve fertilized egg collection efficiency, to reduce damage.
A kind of fish oosperm gathering unit that the utility model provides, have a mesh bag, the network interface cloth of described mesh bag is on a framework, and described frame installation has buoyant device, the buoyancy that buoyant device provides framework departs from its center of gravity, and on framework, being also has two pull ropes; Described mesh bag is comprised of cylindrical shell and bottom, and its middle cylinder body consists of net sheet, and bottom is to consist of calico, bottom end rope tying.
During use, this device is put into spawning pond for parent fish, pull rope of two people Ge La divides in two sides operations, not only adjustable network interface place water surface site but also can move forward in the ovum pocket network access on the water surface.Wait the fertilized egg of collecting, reach after some, the rope that first bottom is opened in rinsing again in water, then rushes the fertilized egg in mesh bag to bucket with clear water, has reached the object of collecting.
Compared with prior art, the utility model has utilized the characteristic of triploidy rate lower than water, for the collection of spawning pond fertilized egg, provides convenience, and needn't discharge water to filter both to have reduced the adverse effect to fertilized egg, improve incubation rate, but also simple in structure, easy to operate.
In described framework, have support bar, described two pull ropes all tie up on the mid point of support bar.So not only strengthened framework but also made two pull ropes nimble to the operation of device.
Accompanying drawing explanation
Fig. 1 is the use view of the utility model one embodiment, Fig. 2 be in this embodiment A to partial view, in figure: the 1-water surface, 2-pull rope, 3-buoyant device, 4-framework, 5-cylindrical shell, 6-bottom.
Embodiment
1, a fish oosperm gathering unit, as shown in Figure 1, 2.Have 1 rectangular frame 4, framework is welded with the stainless steel that diameter is 0.5cm, long 80cm, and wide 40cm, diagonal angle is welded as support bar with the stainless steel rebar of same thickness.It on the crosspoint of two support bars, is the nylon pull rope 2 that has two 10m long.Two minor face homonymies of rectangular frame are respectively fixed with two foam buoyant devices 3.On rectangular frame, be sewed with upper coarse and lower fine mesh bag, mesh bag top is to take the cylindrical shell 5 that 80 object bolting silks are net sheet, and mesh bag bottom is white cloth bottom 6, and bottom end position opening part is provided with tying rope.
During use, the gas charging system in spawning pond for parent fish is closed after 20min, this device is put into spawning pond for parent fish framework and under the effect of buoyant device and deadweight, be the opening pull rope of 1, two people Ge La of laterally bubbling through the water column and divide and in two sides, carry out pull operation.
2, another fish oosperm gathering unit, has an annulus framework, and framework both sides are respectively a pull rope, and on the upper side position each fix a buoyant device, have mesh bag to be fixed on framework with mouth, this mesh bag top is 80 mesh sieve thin,tough silk, bottom is calico.There is tying rope bottom.
The utility model is collected in operating process and has farthest been reduced the damage to fish oosperm in fertilized egg, thereby improves the incubation rate of fertilized egg.The utility model is with low cost, and does not need drainage collection fertilized egg, and extensively collection efficiency, hatchability of fertile eggs and economic benefit are all improved sphere of action.
Claims (2)
1. a fish oosperm gathering unit, has a mesh bag, and the network interface cloth of described mesh bag, on a rectangular frame, is characterized in that described frame installation has buoyant device, and the buoyancy that buoyant device provides framework departs from its center of gravity, and on framework, being also has two pull ropes; Described mesh bag is comprised of cylindrical shell and bottom, and its middle cylinder body consists of net sheet, and bottom is to consist of calico, bottom end rope tying.
2. a kind of fish oosperm gathering unit as claimed in claim 1, is characterized in that described framework has the support bar of intersection, and described two pull ropes all tie up on the crosspoint of support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066907.3U CN203709039U (en) | 2014-02-17 | 2014-02-17 | Fish zygote collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066907.3U CN203709039U (en) | 2014-02-17 | 2014-02-17 | Fish zygote collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203709039U true CN203709039U (en) | 2014-07-16 |
Family
ID=51148262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066907.3U Expired - Fee Related CN203709039U (en) | 2014-02-17 | 2014-02-17 | Fish zygote collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203709039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112997922A (en) * | 2021-03-12 | 2021-06-22 | 长沙理工大学 | Coral oosperm collection device |
-
2014
- 2014-02-17 CN CN201420066907.3U patent/CN203709039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112997922A (en) * | 2021-03-12 | 2021-06-22 | 长沙理工大学 | Coral oosperm collection device |
| CN112997922B (en) * | 2021-03-12 | 2022-10-04 | 长沙理工大学 | Coral oosperm collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150217 |
|
| EXPY | Termination of patent right or utility model |