CN203709078U - Fry collecting device for floating larva - Google Patents
Fry collecting device for floating larva Download PDFInfo
- Publication number
- CN203709078U CN203709078U CN201320861473.1U CN201320861473U CN203709078U CN 203709078 U CN203709078 U CN 203709078U CN 201320861473 U CN201320861473 U CN 201320861473U CN 203709078 U CN203709078 U CN 203709078U
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- China
- Prior art keywords
- mesh bag
- rear end
- bolting silk
- conical
- silk mesh
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a fry collecting device for floating larva. The fry collecting device comprises a conical bolting silk mesh bag with openings at two ends; an elastic binding cord is arranged at the opening in the front end of the conical bolting silk mesh bag; a hook is connected with the opening in the rear end of the conical bolting silk mesh bag; the diameter of the opening in the rear end of the conical bolting silk mesh bag is not lager than one fifth of that of the opening in the front end of the conical bolting silk mesh bag; the rear end of the conical bolting silk mesh bag is opened and suspended, and the floating larva in a mesh can be moved from the rear end with water anytime, so the defects of a traditional collecting device that the water outgoing is unsmooth due to the blockage of the meshes of the bolting silk mesh bag and inconvenience in fry taking due to the closed rear end are overcome, and the characteristic of efficient and continuous collection is achieved; most seawater flows out from the front and middle parts of the conical mesh bag, the water flow passing by the rear end of the bolting silk mesh bag is smaller in pressure, the larva are concentrated at the rear end along with the flow, the larva damage is reduced, and the survival rate is improved. Meanwhile, the operation is simple, single person operation can be realized, manpower resources are saved, the production efficiency is greatly improved, and the fry collecting device has well promotion action for the upgrading of the aquacultural fry nursing technology.
Description
Technical field
The utility model relates to the collection of floating larvae, is specifically related to a kind of collection seedling device of floating larvae.
Background technology
Aquaculture is an important component part of China's marine economy development, and aquatic fry growing production is the basis in aquaculture industry.In artificial breeding process, the juvenile stage of some aquatic economic animals is biological living bait mainly with floating larvae, and as floating larvaes such as bivalve shellfish larva, wheel animalcule, cladocera, copepoda, halogen worms, these larvas are obtained by artificial culture.In larvae cultivation process, due to the deterioration of its physiological metabolism and residual bait, need often to fall Chi Huanshui, therefore to floating larvae, also to collect Miao Zhuanchi.The collection seedling-growing method of traditional floating larvae is to cultivate pond water outlet end placement bolting silk screen cloth or bolting silk net cage, and seawater flows out by bolting silk mesh, and floating larvae is blocked filter on bolting silk screen cloth or in net cage.But because larva itself is less, and mesh is very close, thereby the drainage face that a large amount of larva is subject to Water Pressure to be deposited in screen cloth inner side easily causes that mesh stops up, and drainage is not smooth, has had a strong impact on operating efficiency; And while getting seedling, very easily cause a large amount of floating larvaes because of mechanical damage death, and need the above co-operating of two people, time-consuming effort again.As number of patent application: 200710027662.8, denomination of invention is " the collection seedling device of a kind of Bivalve floating larvae collection seedling-growing method and use ", the conical screen tulle bag of 150-350 order mesh is disclosed, water inlet pipe, outlet pipe, collection seedling device and water pump, mainly utilize conical screen tulle bag filtration, water pump Active Drainage, floating larvae is enriched in collection Miao Qizhong, but because its rear end is closed, do not have to solve and get seedling inconvenience and larva is subject to the problem that crushing is hindered.Therefore, how to improve floating larvae collection seedling and fall the survival rate in pond, alleviate operation intensity, realizing that floating larvae efficient lossless collects is continuously further to improve aquatic fry growing level, and increasing the output of growing seedlings needs problem demanding prompt solution.
Summary of the invention
Technical problem to be solved in the utility model is to provide and a kind ofly collects seedling to fall the survival rate in pond higher, speed, and production efficiency is higher, damages the collection seedling device of less floating larvae.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of collection seedling device of floating larvae, the conical screen tulle bag that comprises both ends open, on the front opening of described conical screen tulle bag, be provided with elasticity tie string, in open rearward end, be connected with hook, the diameter of the open rearward end of described conical screen tulle bag is not more than the diameter of 1/5 front opening.
The mesh of described conical screen tulle bag is 100-350 order.
Compared with prior art, the utility model has the advantage of a kind of collection seedling device of floating larvae, the conical screen tulle bag that comprises both ends open, on the front opening of conical screen tulle bag, be provided with elasticity tie string, in open rearward end, be connected with hook, the diameter of the open rearward end of conical screen tulle bag is not more than the diameter of 1/5 front opening; Conical screen tulle bag rear end is opened and is hung like this, can at any time the floating larvae in net be shifted out from rear end band water, overcome traditional gathering unit and because bolting silk mesh bag mesh stops up, caused that the smooth and back-end closure of water outlet gets the drawback of seedling inconvenience, realize the separated of filtered water section and larva enrichment region, thereby reached the feature that high-efficiency and continuous is collected; Overwhelming majority seawater before taper mesh bag, middle part flows out, less by the water flow pressure of bolting silk mesh bag rear end, larva following current concentrates on this place, has avoided the damage of larva, has improved survival rate.Meanwhile, because of simple to operate, can realize one man operation, save human resources, greatly improve production efficiency, to aquatic fry growing, technology upgrading has good impetus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment
The collection seedling device of a kind of floating larvae as shown in Figure 1, the conical screen tulle bag 1 that comprises both ends open, the mesh of conical screen tulle bag 1 is 100-350 order (not shown), on the front opening 11 of conical screen tulle bag 1, be provided with elasticity tie string 2, in open rearward end 12, be connected with hook 3, the diameter of the open rearward end 12 of conical screen tulle bag 1 is not more than the diameter of 1/5 front opening 11, while collecting seedling like this, with elasticity tie string, the drain pipe port of conical screen tulle bag front opening and nursery pond is bundled, before conical screen tulle bag, stage casing is immersed in the water, the hook of rear end hangs, rear end is all the time higher than front end, and according to current size adjustment suspension height, with larva, not overflowing rear port is limited, during work, floating larvae connects water and is entered by taper mesh bag front end by drainpipe, water is before mesh bag, middle part sees through sieve screen apertures and flows out, floating larvae following current concentrates on the rear end of mesh bag, opening due to rear end designs again, air in whole mesh bag also can be discharged very soon, can not cause swollen bag phenomenon, after floating larvae enrichment, the rear end of loweing makes it lower than front end, allow floating larvae band water discharge from rear end, with container, collect, obtain the floating larvae of enrichment, essentially no damage, survival rate is high, because floating larvae is with water discharge at any time, can not cause that mesh stops up, speed, production efficiency is higher.
Claims (2)
1. the collection seedling device of a floating larvae, the conical screen tulle bag that comprises both ends open, it is characterized in that being provided with elasticity tie string on the front opening of described conical screen tulle bag, in open rearward end, be connected with hook, the diameter of the open rearward end of described conical screen tulle bag is not more than the diameter of 1/5 front opening.
2. the collection seedling device of a kind of floating larvae as claimed in claim 1, the mesh that it is characterized in that described conical screen tulle bag is 100-350 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861473.1U CN203709078U (en) | 2013-12-25 | 2013-12-25 | Fry collecting device for floating larva |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861473.1U CN203709078U (en) | 2013-12-25 | 2013-12-25 | Fry collecting device for floating larva |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203709078U true CN203709078U (en) | 2014-07-16 |
Family
ID=51148300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861473.1U Withdrawn - After Issue CN203709078U (en) | 2013-12-25 | 2013-12-25 | Fry collecting device for floating larva |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203709078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749403A (en) * | 2013-12-25 | 2014-04-30 | 宁波大学 | Planktonic larva seedling collection device |
| CN104872083A (en) * | 2015-05-29 | 2015-09-02 | 中国科学院海洋研究所 | Visual multi-connected sampling system of plankton and use method thereof |
| CN107372243A (en) * | 2017-08-25 | 2017-11-24 | 江苏省海洋水产研究所 | A kind of razor shell transplanting device of falling pond and its method of transplanting seedlings |
-
2013
- 2013-12-25 CN CN201320861473.1U patent/CN203709078U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749403A (en) * | 2013-12-25 | 2014-04-30 | 宁波大学 | Planktonic larva seedling collection device |
| CN103749403B (en) * | 2013-12-25 | 2016-05-18 | 宁波大学 | A kind of collection seedling device of floating larvae |
| CN104872083A (en) * | 2015-05-29 | 2015-09-02 | 中国科学院海洋研究所 | Visual multi-connected sampling system of plankton and use method thereof |
| CN107372243A (en) * | 2017-08-25 | 2017-11-24 | 江苏省海洋水产研究所 | A kind of razor shell transplanting device of falling pond and its method of transplanting seedlings |
| CN107372243B (en) * | 2017-08-25 | 2020-11-06 | 江苏省海洋水产研究所 | Solen grandis pond-reversing seedling transplanting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |