CN102475074A - Fish egg/fish larva-sampling net - Google Patents
Fish egg/fish larva-sampling net Download PDFInfo
- Publication number
- CN102475074A CN102475074A CN2010105564197A CN201010556419A CN102475074A CN 102475074 A CN102475074 A CN 102475074A CN 2010105564197 A CN2010105564197 A CN 2010105564197A CN 201010556419 A CN201010556419 A CN 201010556419A CN 102475074 A CN102475074 A CN 102475074A
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- fish
- egg
- rings
- etting
- circular steel
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Abstract
A fish egg/fish larva-sampling net relates to a sampling netting gear for marine organism survey. The fish egg/fish larva-sampling net comprises opening rings, nets and collectors, and is characterized in that: two round steel rings are combined by a hinging structure to form double rings as the opening rings, the hinging structure can fold the two round steel rings together, the two round steel rings are unfolded by 180 degrees to form a plane when fish eggs and fish larvae need to be collected, the conical nets which are made of bolting silks are respectively mounted on the two round steel rings, and the mesh size of each bolting silk is 0.50mm to 4mm; opening parts made of fine canvases are sewed on the upper edges of the nets, and tail parts made of fine canvases are sewed on the lower edges of the nets; a main cylindrical body is connected with a conical funnel to form the collector, the upper edge of the main cylindrical body of the collector is superposed and tightly connected with the tail outlet of the net, and the outlet of the funnel is provided with a valve type switch.
Description
Technical field
The invention belongs to the sampling netting gear of marine organisms investigation usefulness.
Background technology
Fish-egg, the young postlarva of ocean Mesichthyes individuality are very little, but quantity is a lot, and it is wide again to distribute, and in the early stage biohistory research of fish, occupy an important position.Fish-egg, young postlarva are the important stages of fish on the history of life; Be that the stock of fish replenishes the basis with sustainable use; Form and quantity from the kind of fish-egg, young postlarva, can verify the size of the early stage productivity of fish, have great importance holding fishery resources variation of quantity situation; Can be fishery resources exploitation and fish reproduction protection scientific basis is provided, this will help the further investigation of the fish ecosystem.Therefore, fish-egg, child fish are investigated usually as one of of paramount importance project in the oceanographic survey.At present, collection fish-egg, child fish are still used following several kinds of sampling instruments: (1) macroplankton net; Mainly be used for gathering arrow worms, amphipoda, krill class, large-scale copepoda, jellyfish class; (2) mesoplankton net mainly is used for gathering medium and small zooplankton; (3) microplankton net mainly is used for gathering the young of phytoplankton and zooplankton; (4) the biological net of vertical fragmentation uses dead lock to match with making hammer, and to pull the plankton standard specimen between certain water layer, doing quantitatively, net uses.Still need a kind ofly can once gather the young postlarva of different developmental phases, the special use collection netting gear of fish-egg in the sampling in the living marine resources basic survey.
Summary of the invention
The purpose of this invention is to provide a kind of netting gear that is applicable to that fish-egg, child fish are gathered.
Technical scheme of the present invention is made up of network interface circle, etting and gatherer; It is characterized in that the network interface circle is that two circular steel rings are formed two circles with articulated structure; This articulated structure makes two collapsible closing up of circular steel ring, and when gathering fish-egg, young postlarva, two circular steel rings launch 180 and spend into same plane; Two equipped respectively taper barrel ettings that adopt bolting silk to be sewn into of circular steel ring, bolting silk mesh size 0.50mm-4mm; The etting upper edge makes that fine canvas is processed network interface portion, the etting lower edge is made fine canvas and processed the net afterbody; Gatherer is connected and composed by cylindrical body and conical hopper, and the cylindrical body upper edge of gatherer and etting net afterbody export the fastening connection that is superimposed with each other, and hopper outlet is provided with the valve-type switch.
Advantage of the present invention is the collection that is specially adapted to fish-egg, child fish, can in once sampling, obtain to gather young postlarva, the fish-egg of different developmental phases, can satisfy the requirement of acquisition time synchronism, obtains the effect of getting twice the result with half the effort.
Description of drawings
What accompanying drawing was represented is structural representation of the present invention.
Embodiment
The present invention's (seeing accompanying drawing) is made up of network interface circle 1, etting 3 and gatherer 5.The network interface circle is that two circular steel rings adopt articulated structure 9 to be linked to be two circles; This articulated structure makes two collapsible closing up of circular steel ring; When gathering fish-egg, young postlarva, two circular steel rings launch 180 and spend into same plane, can weld tether circle 6 on two circular steel rings and be convenient to fasten cart rope.Etting is processed taper barrel with bolting silk, bolting silk mesh size 0.50mm-4mm.According to the needs of investigation operation, two circular steel rings can be installed the etting of different size of meshes, gather the child fish and the fish-egg thereof of different developmental phases.Fine canvas and the assembling of circular steel ring are made by etting network interface portion 2, and even distribution aperture can be bumped into little iron ring on the aperture on the fine canvas, pass little iron ring hole with connection cord etting and circular steel ring are connect.Gatherer is connected and composed by cylindrical body 5 and conical hopper 7, and hopper outlet is provided with valve-type switch 8.Etting net afterbody 4 is made fine canvas, the fastening connection that is superimposed with each other of the cylindrical body of net afterbody outlet and gatherer.
Claims (1)
1. the young postlarva sampling network of a fish-egg; Be made up of network interface circle, etting and gatherer, it is characterized in that the network interface circle is that two circular steel rings are formed two circles with articulated structure, this articulated structure makes two collapsible closing up of circular steel ring; When gathering fish-egg, young postlarva; Two circular steel rings launch 180 and spend into same plane, two equipped respectively taper barrel ettings that adopt bolting silk to be sewn into of circular steel ring, bolting silk mesh size 0.50mm-4mm; The etting upper edge makes that fine canvas is processed network interface portion, the etting lower edge is made fine canvas and processed the net afterbody; Gatherer is connected and composed by cylindrical body and conical hopper, and the cylindrical body upper edge of gatherer and etting net afterbody export the fastening connection that is superimposed with each other, and hopper outlet is provided with the valve-type switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105564197A CN102475074A (en) | 2010-11-22 | 2010-11-22 | Fish egg/fish larva-sampling net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105564197A CN102475074A (en) | 2010-11-22 | 2010-11-22 | Fish egg/fish larva-sampling net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102475074A true CN102475074A (en) | 2012-05-30 |
Family
ID=46087942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105564197A Pending CN102475074A (en) | 2010-11-22 | 2010-11-22 | Fish egg/fish larva-sampling net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102475074A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382439A (en) * | 2013-08-05 | 2013-11-06 | 青岛恒生源生态农业有限公司 | Microalgae collecting device |
| CN113424783A (en) * | 2021-06-02 | 2021-09-24 | 浙江省海洋水产养殖研究所 | Living fish egg collecting device and control method |
| KR102684454B1 (en) | 2023-11-14 | 2024-07-12 | 대한민국 | Gathering device of fish egg and larva and juvenile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378116Y (en) * | 2009-04-14 | 2010-01-06 | 中国水产科学研究院东海水产研究所 | Plankton sampling net |
-
2010
- 2010-11-22 CN CN2010105564197A patent/CN102475074A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378116Y (en) * | 2009-04-14 | 2010-01-06 | 中国水产科学研究院东海水产研究所 | Plankton sampling net |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382439A (en) * | 2013-08-05 | 2013-11-06 | 青岛恒生源生态农业有限公司 | Microalgae collecting device |
| CN113424783A (en) * | 2021-06-02 | 2021-09-24 | 浙江省海洋水产养殖研究所 | Living fish egg collecting device and control method |
| KR102684454B1 (en) | 2023-11-14 | 2024-07-12 | 대한민국 | Gathering device of fish egg and larva and juvenile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |