CN102805055A - Triple plankton vertical trawl net - Google Patents
Triple plankton vertical trawl net Download PDFInfo
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- CN102805055A CN102805055A CN2012102559711A CN201210255971A CN102805055A CN 102805055 A CN102805055 A CN 102805055A CN 2012102559711 A CN2012102559711 A CN 2012102559711A CN 201210255971 A CN201210255971 A CN 201210255971A CN 102805055 A CN102805055 A CN 102805055A
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Abstract
The invention relates to a marine organism sample collecting tool and belongs to the technical field of marine organism study, in particular to a triple plankton vertical trawl net. In order to solve the problems, the invention provides the vertical trawl net capable of simultaneously carrying out the resource investigation on three kinds of specifications of planktons in the same position, the marine sampling operation time is shortened, the work intensity of workers is reduced, and the sampling result analysis error caused by different sampling positions in three times because of boat drift is avoided. The triple plankton vertical trawl net comprises a net frame, cross ropes, three specifications of plankton nets and a counter weight, wherein the net frame is connected onto a winch rope through a connecting ring, one ends of the three cross ropes are connected onto the net frame, the other ends of the three cross ropes are connected with the counter weight, net opening rings of the three specifications of plankton nets are fixed on the net frame, and net bottom pipes are respectively connected onto the three cross ropes. The triple plankton vertical trawl net has the advantages the investigation requiring three-time net releasing operation in the original one investigation station can be completed by once net releasing operation, the net tool replacing is not needed, the operation time is saved, the work intensity of workers is reduced, the sampling positions of the three specifications of net tools are consistent, the plankton resource quantity in the investigation position can be more accurately analyzed, and the sampling errors are reduced.
Description
Technical field:
The present invention relates to a kind of marine organisms sample sampling instrument, belong to the marine organisms studying technological domain, is the vertical trawlnets of a kind of three planktons specifically.
Background technology:
The vertical trawlnet of plankton is one of main tool of gathering by the plankton sample, has advantage simple to operate, that sampling quantity is big, in the studies of halomereid, is generally adopted.According to the difference of sampling object, the vertical trawlnet of plankton is divided into macroplankton net, mesoplankton net and microplankton net.The structure and the specification of 3 kinds of netting gears have nothing in common with each other, in actual sampling process, same sampling erect-position according to the difference of sampling object often needs use 3 kinds of netting gears to take a sample respectively.1 need of every kind of specification netting gear sampling are about 30 minutes consuming time under the normal condition, 3 kinds of netting gears, 90 minutes consuming time of the common need of taking a sample respectively, and it is consuming time longer work, and the netting gear replacing also need take time and effort.And because the drift of boats and ships, the position of carrying out 3 sub-samplings is difficult to be consistent, the error that causes sampling result to analyze easily.
Summary of the invention:
The problem that the present invention need solve provides a kind of vertical trawlnet that can carry out 3 kinds of specification plankton resource investigations simultaneously at same position; Shorten the marine sampling operation time; Reduce intensity of workers, avoid causing the inconsistent sampling result analytical error that causes in 3 sub-sampling positions because of boats and ships drift about.
The present invention adopts following technical scheme:
The vertical trawlnet of described three planktons comprises rack, fork guiding principle, 3 kinds of specification plankton nets and weight.
The vertical trawlnet of described three planktons, 3 fork guiding principle one ends are connected on the rack, and the other end connects weight; 3 kinds of specification plankton net network interface rings use stainless steel retainer ring to be fixed on the rack, and 3 kinds of specification plankton net net bottom pipes use static line to be respectively fixed on 3 fork guiding principles;
The vertical trawlnet of described three planktons, rack is that stainless steel rebar is welded, and comprises rack connecting ring, stainless steel fork guiding principle, steel ring, retainer ring, triangle retainer ring.
The vertical trawlnet rack of described three planktons triangle retainer ring 3 length of sides are respectively 7cm, 8cm and 9cm.
3 kinds of specification plankton nets of the vertical trawlnet of described three planktons are respectively the macroplankton net, mesoplankton is netted sharp microplankton net.
The vertical trawlnet fork of described three planktons guiding principle is a rope, and length is 3.2m.
The vertical trawlnet weight of described three planktons is plumbous system, heavy 20kg.
The invention has the beneficial effects as follows:
1. 3 kinds of vertical trawlnets of specification plankton of carry when the present invention can consolidate are put the net operation and need not to change netting gear, have reduced intensity of workers.
2. the present invention can make investigation that original 1 investigation erect-position is put net operation for 3 times be reduced to 1 time and put net operation, and marine sampling operation time of each erect-position was shortened to 30 minutes by 90 minutes, has saved the activity duration.
3. it is consistent that the present invention can make the netting gear sample position of 3 kinds of specifications, can analyse and investigate the plankton stock number of position more accurately, reduces sampling error.
Description of drawings:
Accompanying drawing is the vertical trawlnet design drawing of the present invention three planktons.
Among the figure; 1 rack connecting ring, 2 stainless steel fork guiding principles, 3 steel rings, 4 retainer rings; 5 triangle retainer rings, 6 microplanktons net network interface ring, 7 macroplanktons net network interface ring, 8 mesoplanktons net network interface ring; 9 is 3 fork guiding principles, and 10 is the net bottom pipe of 3 plankton nets, 11 weights.
Embodiment:
Below in conjunction with accompanying drawing the present invention is described further.
As shown in the figure, the vertical trawlnet of three planktons, this trawlnet is connected to form by rack, fork guiding principle, 3 kinds of specification plankton nets and weight.Rack connecting ring 1 is used for being connected with the winch rope; The upper end of 3 fork guiding principles 9 is fixed on rack connecting ring 1, stainless steel fork guiding principle 2 and the steel ring 3, and the lower end all is connected to weight 11; Plankton net network interface ring 7 is fixed on the retainer ring 4, and 1 is fixed on the rack steel ring 3, plankton net network interface ring 6 and 8 equal 2 be fixed on the rack steel ring 3, utilize triangle retainer ring 5 to connect mutually between 3 plankton nets; The net bottom pipe 10 of 3 plankton nets is respectively fixed on 3 fork guiding principles 9.
Claims (5)
1. the vertical trawlnet of three planktons is connected to form by rack, fork guiding principle, plankton net and weight, it is characterized in that, this trawlnet is connected on the rack by 3 fork guiding principle one ends, and the other end connects weight; 3 kinds of specification plankton net network interface rings use stainless steel retainer ring to be fixed on the rack, and the net bottom pipe is connected respectively on 3 fork guiding principles.
2. according to the vertical trawlnet of described three planktons of claim 1, it is characterized in that rack is to be welded with stainless steel rebar, comprise connecting ring, stainless steel fork guiding principle, steel ring, retainer ring, triangle retainer ring; Triangle retainer ring 3 length of sides are respectively 7cm, the sharp 9cm of 8cm.
3. according to the vertical trawlnet of described three planktons of claim 1, it is characterized in that 3 kinds of specification plankton nets are respectively macroplankton net, mesoplankton net and microplankton net.
4. according to the vertical trawlnet of described three planktons of claim 1, it is characterized in that 3 fork guiding principles are rope, length is 3.2m.
5. according to the vertical trawlnet of described three planktons of claim 1, it is characterized in that weight is plumbous system, heavy 20kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102559711A CN102805055A (en) | 2012-07-14 | 2012-07-14 | Triple plankton vertical trawl net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102559711A CN102805055A (en) | 2012-07-14 | 2012-07-14 | Triple plankton vertical trawl net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102805055A true CN102805055A (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102559711A Pending CN102805055A (en) | 2012-07-14 | 2012-07-14 | Triple plankton vertical trawl net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102805055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258712A (en) * | 2017-07-19 | 2017-10-20 | 中国水产科学研究院东海水产研究所 | A kind of heavy pendant of bottomed prompting |
| CN109392853A (en) * | 2018-11-19 | 2019-03-01 | 中国科学院南京地理与湖泊研究所 | Automate fish electric fishing science investigation apparatus |
| CN110959586A (en) * | 2019-05-08 | 2020-04-07 | 自然资源部第一海洋研究所 | Modular benthonic animal trawl |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2662643Y (en) * | 2003-11-17 | 2004-12-15 | 中国水产科学研究院东海水产研究所 | Double plankton vertical net |
| WO2009136797A1 (en) * | 2008-05-06 | 2009-11-12 | Calanus As | Trawl |
| CN201821781U (en) * | 2010-09-25 | 2011-05-11 | 河北师范大学汇华学院 | Collection net for plankton in shallow water areas |
| CN202305276U (en) * | 2011-10-20 | 2012-07-04 | 浙江大学舟山海洋研究中心 | Plankton sampling device |
| CN202738651U (en) * | 2012-07-14 | 2013-02-20 | 国家海洋局第一海洋研究所 | Trigeminy plankton vertical trawl |
-
2012
- 2012-07-14 CN CN2012102559711A patent/CN102805055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2662643Y (en) * | 2003-11-17 | 2004-12-15 | 中国水产科学研究院东海水产研究所 | Double plankton vertical net |
| WO2009136797A1 (en) * | 2008-05-06 | 2009-11-12 | Calanus As | Trawl |
| CN201821781U (en) * | 2010-09-25 | 2011-05-11 | 河北师范大学汇华学院 | Collection net for plankton in shallow water areas |
| CN202305276U (en) * | 2011-10-20 | 2012-07-04 | 浙江大学舟山海洋研究中心 | Plankton sampling device |
| CN202738651U (en) * | 2012-07-14 | 2013-02-20 | 国家海洋局第一海洋研究所 | Trigeminy plankton vertical trawl |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258712A (en) * | 2017-07-19 | 2017-10-20 | 中国水产科学研究院东海水产研究所 | A kind of heavy pendant of bottomed prompting |
| CN109392853A (en) * | 2018-11-19 | 2019-03-01 | 中国科学院南京地理与湖泊研究所 | Automate fish electric fishing science investigation apparatus |
| CN110959586A (en) * | 2019-05-08 | 2020-04-07 | 自然资源部第一海洋研究所 | Modular benthonic animal trawl |
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Application publication date: 20121205 |
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| WD01 | Invention patent application deemed withdrawn after publication |