CN103749403B - A kind of collection seedling device of floating larvae - Google Patents
A kind of collection seedling device of floating larvae Download PDFInfo
- Publication number
- CN103749403B CN103749403B CN201310724762.1A CN201310724762A CN103749403B CN 103749403 B CN103749403 B CN 103749403B CN 201310724762 A CN201310724762 A CN 201310724762A CN 103749403 B CN103749403 B CN 103749403B
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- bag
- conical screen
- floating larvae
- rear end
- screen tulle
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Abstract
The invention discloses a kind of collection seedling device of floating larvae, comprise the conical screen tulle bag of both ends open, on the front opening of conical screen tulle bag, be provided with elasticity tie string, be connected with hook in open rearward end, 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-device and caused that because bolting silk mesh bag mesh stops up the smooth and back-end closure of water outlet gets the drawback of seedling inconvenience, thereby reached the feature of high-efficiency and continuous collection; The overwhelming majority seawater before taper mesh bag, middle part flow 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.
Description
Technical field
The present invention relates to the collection of floating larvae, be 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, Copepods, 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 also to collect Miao Zhuanchi to floating larvae. 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 by this invention 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 present invention solves the problems of the technologies described above adopted technical scheme: a kind of collection seedling device of floating larvae, comprise the conical screen tulle bag of 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 invention has the advantages that a kind of collection seedling device of floating larvae, comprise the conical screen tulle bag of 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-device and caused that because bolting silk mesh bag mesh stops up the smooth and back-end closure of water outlet gets the drawback of seedling inconvenience, realize separating of filtered water section and larva enrichment region, thereby reached the feature that high-efficiency and continuous is collected; The overwhelming majority seawater before taper mesh bag, middle part flow 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.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment
The collection seedling device of a kind of floating larvae as shown in Figure 1, comprise the conical screen tulle bag 1 of 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 by the drain pipe port binding of conical screen tulle bag front opening and nursery pond, 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, not overflowing rear port with larva is limited, when 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, again because the opening of rear end designs, 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, collect with container, 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, comprise the conical screen tulle bag of 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 |
|---|---|---|---|
| CN201310724762.1A CN103749403B (en) | 2013-12-25 | 2013-12-25 | A kind of collection seedling device of floating larvae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724762.1A CN103749403B (en) | 2013-12-25 | 2013-12-25 | A kind of collection seedling device of floating larvae |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103749403A CN103749403A (en) | 2014-04-30 |
| CN103749403B true CN103749403B (en) | 2016-05-18 |
Family
ID=50516862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724762.1A Expired - Fee Related CN103749403B (en) | 2013-12-25 | 2013-12-25 | A kind of collection seedling device of floating larvae |
Country Status (1)
| Country | Link |
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| CN (1) | CN103749403B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997809B (en) * | 2019-04-10 | 2021-07-27 | 华南农业大学 | Enrichment and collection device and collection method for daphnia magna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399629A (en) * | 1981-03-05 | 1983-08-23 | The United States Of America As Represented By The United States Department Of Energy | Collecting apparatus |
| CN1826886A (en) * | 2006-03-31 | 2006-09-06 | 罗明江 | Fishing net and its manufacturing method |
| CN101057564A (en) * | 2007-04-18 | 2007-10-24 | 广东海洋大学 | Seeding collecting method for bivalves pelagic larvae and using seeding collecting device |
| CN202179054U (en) * | 2011-08-03 | 2012-04-04 | 水利部中国科学院水工程生态研究所 | Plankton collecting device |
| CN203313679U (en) * | 2013-06-05 | 2013-12-04 | 中国水产科学研究院南海水产研究所 | Marine plankton conical multi-screen united sampling device |
| CN203709078U (en) * | 2013-12-25 | 2014-07-16 | 宁波大学 | Fry collecting device for floating larva |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766155B (en) * | 2010-01-29 | 2012-07-25 | 苏志烽 | Pond ground cage for catching crayfishes |
| KR101102267B1 (en) * | 2010-12-14 | 2012-01-03 | 대한민국 | Zooplankton collection net with jellyfish removal apparatus |
-
2013
- 2013-12-25 CN CN201310724762.1A patent/CN103749403B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399629A (en) * | 1981-03-05 | 1983-08-23 | The United States Of America As Represented By The United States Department Of Energy | Collecting apparatus |
| CN1826886A (en) * | 2006-03-31 | 2006-09-06 | 罗明江 | Fishing net and its manufacturing method |
| CN101057564A (en) * | 2007-04-18 | 2007-10-24 | 广东海洋大学 | Seeding collecting method for bivalves pelagic larvae and using seeding collecting device |
| CN202179054U (en) * | 2011-08-03 | 2012-04-04 | 水利部中国科学院水工程生态研究所 | Plankton collecting device |
| CN203313679U (en) * | 2013-06-05 | 2013-12-04 | 中国水产科学研究院南海水产研究所 | Marine plankton conical multi-screen united sampling device |
| CN203709078U (en) * | 2013-12-25 | 2014-07-16 | 宁波大学 | Fry collecting device for floating larva |
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| CN103749403A (en) | 2014-04-30 |
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Granted publication date: 20160518 Termination date: 20181225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |