CN201947810U - Small-mesh sampling net for marine organism sampling - Google Patents
Small-mesh sampling net for marine organism sampling Download PDFInfo
- Publication number
- CN201947810U CN201947810U CN2010206205572U CN201020620557U CN201947810U CN 201947810 U CN201947810 U CN 201947810U CN 2010206205572 U CN2010206205572 U CN 2010206205572U CN 201020620557 U CN201020620557 U CN 201020620557U CN 201947810 U CN201947810 U CN 201947810U
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- net
- sampling
- fish
- steel rings
- circular steel
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- Expired - Fee Related
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Abstract
A fish egg and fish infant sampling net relates to a sampling net for marine organism investigations. The sampling net which is composed of a net opening ring, net coatings and collectors is characterized in that the net opening ring is a double-ring formed by connecting two round steel rings through a hinging structure. The hinging structure makes the two round steel rings folded in a foldable way. During a fish egg and fish infant collecting process, the two round steel rings are unfolded at a 180-DEG angle to form a plane. The two round steel rings are respectively provided with a conical tube-shaped net coating which is manufactured by sewing silk sieve cloth. The meshes of the silk sieve cloth are ranging from 0.50mm to 4mm. A net opening part is formed by sewing fine canvas on the upper edge of each net coating while a net tail part is formed by sewing fine canvas on the lower edge of each net coating. Each collector is formed by connecting a cylindrical main body and a conical funnel. The cylindrical main body upper edge of each collector respectively overlaps and is in fastening connection with the net tail part outlet of one net coating. Each funnel outlet is provided with a valve type switch.
Description
Technical field
The utility model relates 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 occupy an important position in the early stage biohistory research of fish.Fish-egg, young postlarva are the important stages of fish on the history of life; be that the stock of fish replenishes and the basis of 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 to 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 sampling instrument: (1) macroplankton net; Be mainly used to gather arrow worms, amphipoda, krill class, large-scale copepoda, jellyfish class; (2) mesoplankton net is mainly used to gather medium and small zooplankton; (3) microplankton net is mainly used to gather 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.Also need in the living marine resources basic survey a kind of can once gather the young postlarva of different developmental phases in the sampling, netting gear is gathered in the special use of fish-egg.
The utility model content
The purpose of this utility model provides a kind of netting gear that is applicable to that fish-egg, child fish are gathered.
The technical solution of the utility model is made up of network interface circle, etting and gatherer, it is characterized in that the network interface circle is two circles that two circular steel rings are formed 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 is made fine canvas and is become network interface portion, etting lower edge to make fine canvas to become the net afterbody; Gatherer is connected and composed by cylindrical body and conical hopper, and the cylindrical body upper edge of gatherer and the net afterbody of etting export the fastening connection that is superimposed with each other, and hopper outlet is provided with the valve-type switch.
The utility model has the advantages that 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, obtain 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 utility model.
Embodiment
The utility model (seeing accompanying drawing) is by being 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 made 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 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 (2)
1. the little mesh sampling network of marine organisms sampling usefulness, form by network interface circle, etting and gatherer, it is characterized in that the network interface circle is two circles that two circular steel rings are formed 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 is made fine canvas and is become network interface portion, etting lower edge to make fine canvas to become the net afterbody; Gatherer is connected and composed by cylindrical body and conical hopper, and the cylindrical body upper edge of gatherer and the net afterbody of etting export the fastening connection that is superimposed with each other, and hopper outlet is provided with the valve-type switch.
2. the little mesh sampling network of a kind of marine organisms sampling usefulness according to claim 1 is characterized in that welding tether circle fastens cart rope on two circular steel rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205572U CN201947810U (en) | 2010-11-22 | 2010-11-22 | Small-mesh sampling net for marine organism sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205572U CN201947810U (en) | 2010-11-22 | 2010-11-22 | Small-mesh sampling net for marine organism sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947810U true CN201947810U (en) | 2011-08-31 |
Family
ID=44491942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206205572U Expired - Fee Related CN201947810U (en) | 2010-11-22 | 2010-11-22 | Small-mesh sampling net for marine organism sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599120A (en) * | 2011-12-16 | 2012-07-25 | 中国水产科学研究院东海水产研究所 | Method for trawling live young fishes |
-
2010
- 2010-11-22 CN CN2010206205572U patent/CN201947810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599120A (en) * | 2011-12-16 | 2012-07-25 | 中国水产科学研究院东海水产研究所 | Method for trawling live young fishes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20111122 |