CN205848397U - A kind of researching tool of Corbicula fluminea population - Google Patents
A kind of researching tool of Corbicula fluminea population Download PDFInfo
- Publication number
- CN205848397U CN205848397U CN201620667460.4U CN201620667460U CN205848397U CN 205848397 U CN205848397 U CN 205848397U CN 201620667460 U CN201620667460 U CN 201620667460U CN 205848397 U CN205848397 U CN 205848397U
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- China
- Prior art keywords
- corbicula fluminea
- population
- latticed
- catching device
- securing member
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Abstract
This utility model relates to zoobenthos fact-finding technique field, is specifically related to the researching tool of a kind of Corbicula fluminea population.It includes the latticed catching device of front opening and back-end closure, and the front elevational sectional of described latticed catching device is more than rear end section；Described latticed catching device includes framework, it is welded with a plurality of interlaced on described framework and forms the net bar of evenly sized mesh, the front end of described framework is also surrounded with securing member, described securing member connects the pull bar having forward upward to be obliquely installed, and the end of described pull bar is provided with the draw ring being easy to fixing trawlnet rope.This utility model overall construction design is the most reasonable, carry easy to use, mesh size is chosen through many experiments, the population density of the accurate analytical unit area Corbicula fluminea of energy, to calculate the stock number of Corbicula fluminea, and investigation accuracy and the precision of Corbicula fluminea population can be substantially increased by the age composition of housing size composition preliminary analysis Corbicula fluminea.
Description
Technical field
This utility model relates to zoobenthos fact-finding technique field, is specifically related to the investigation work of a kind of Corbicula fluminea population
Tool.
Background technology
At present, dwell trawlnet and bottom sampler in researching tool many utilizations end of macrobenthos Bivalve population, as A Shi net,
The gloomy bottom sampler of Peter.But A Shi net mesh size is not suitable for the investigation of Corbicula fluminea population, uses bottom sampler to gather Corbicula fluminea in addition and adopted
The impact of the factors such as sample frequency, grain size of sediment and bivalve zoobenthos Patch distribution is difficult to quantitative collection Corbicula fluminea, it is impossible to calibrated
Really analyze and calculate the population density of rivers Corbicula fluminea, age composition and stock number.
Utility model content
In order to overcome existing Corbicula fluminea sampling instrument can not analyze the deficiency of Corbicula fluminea parameter and population exactly, of the present utility model
Purpose is to provide the researching tool of a kind of Corbicula fluminea population, the population density of this instrument accurate analytical unit area Corbicula fluminea of energy
To calculate the stock number of Corbicula fluminea and the age composition of preliminary analysis Corbicula fluminea can being formed by housing size.
For realizing above-mentioned technical purpose, the technical scheme that this utility model employing is following:
A kind of researching tool of Corbicula fluminea population, the latticed catching device of back-end closure, described grid including front opening
The front elevational sectional of shape catching device is more than rear end section；Described latticed catching device includes framework, described framework is welded with a plurality of
Interlaced and form the net bar of evenly sized mesh, the front end of described framework is also surrounded with securing member, described securing member
Connecting the pull bar having forward upward to be obliquely installed, the end of described pull bar is provided with the draw ring being easy to fixing trawlnet rope.
As preferably, described framework uses the stainless-steel pipe of a diameter of 4mm or reinforcing bar to be welded, a length of 40cm,
Network interface cross section, front end is 35cmX60cm；Back-end network basal cross section is 30cmX45cm；Mesh size is 15mmX15mm.
As preferably, described net bar is steel bar, sound construction, durable in use.
As preferably, described securing member is iron hoop.
As preferably, described pull bar and described securing member are detachably connected by bolt, thus dismantle easy to carry.
As preferably, described pull bar uses the stainless-steel pipe of 1.5m length.
Compared with prior art, the researching tool of this Corbicula fluminea population has the following beneficial effect: overall construction design
The most rationally, carrying easy to use, mesh size is chosen through many experiments, the accurate analytical unit area Corbicula fluminea of energy
Population density, in order to calculate the stock number of Corbicula fluminea, and can be by the age composition of housing size composition preliminary analysis Corbicula fluminea.This reality
With novel the most rational in infrastructure, and assemble, easy removal, and sample effect is good, substantially increases the tune of Corbicula fluminea population
Look into accuracy and precision.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model
Enclose.Wherein:
Fig. 1 is the structural representation of this utility model embodiment；
In figure: the latticed catching device of 1-；11-framework；12-mesh；13-net bar；2-securing member；3-pull bar；4-trawlnet rope
Rope；5-draw ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description, only by saying
Bright mode describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art is permissible
Recognize, in the case of without departing from spirit and scope of the present utility model, can be by various different modes to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently protection that is the most illustrative rather than that be used for limiting claim
Scope.
As it is shown in figure 1, the researching tool of a kind of Corbicula fluminea population, the latticed catching device of back-end closure including front opening
1, the front elevational sectional of described latticed catching device 1 is more than rear end section；Described latticed catching device 1 includes framework 11, described frame
Being welded with a plurality of interlaced on frame 11 and form the net bar 13 of evenly sized mesh 12, described net bar 13 uses steel bar, described
The front end of framework 11 is also surrounded with securing member 2, and securing member 2 can use iron hoop to realize, and described securing member 2 can by bolt
Dismounting connects the pull bar 3 having forward upward to be obliquely installed, and described pull bar is preferably with the stainless-steel pipe of 1.5m length；Described pull bar
The end of 3 is welded with the draw ring 5 being easy to fixing trawlnet rope 4.
Wherein, described framework 11 uses the stainless-steel pipe of a diameter of 4mm or reinforcing bar to be welded, and a length of 40cm is front
End network interface cross section preferred size is 35cmX60cm；Back-end network basal cross section preferred size is 30cmX45cm；Mesh size is preferably
15mmX15mm。
Work process of the present utility model is as follows:
First trawlnet rope 4 is fixed on draw ring 5, then latticed catching device 1 is tilted to put in water by quarter, frame
After frame sinks to river bed, starting ship, tow sampling tool, framework utilizes the steel bar of network interface to comb river bed or deposit
Rake, gathers the Corbicula fluminea more than mesh.After towing a segment distance, pull-up sampling tool, pour out Corbicula fluminea, check the number of individuals of Corbicula fluminea
Amount.And according to formula unit of account area Corbicula fluminea abundance:
S: the abundance of unit are Corbicula fluminea；
N: gather the quantity of Corbicula fluminea；
L1: network interface length；
L2: tow distance.
And mesh size of the present utility model chooses through many experiments, can accurate analytical unit area Corbicula fluminea
Population density is to calculate the stock number of Corbicula fluminea and can consisting of the age composition of preliminary analysis Corbicula fluminea housing size.This reality
With novel the most rational in infrastructure, assemble, dismantle simply, and sample effect is good, substantially increases the investigation accuracy of Corbicula fluminea population
And precision.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model
Enclose.Any those skilled in the art, equivalent done on the premise of without departing from design of the present utility model and principle becomes
Change and amendment, the scope of this utility model protection all should be belonged to.
Claims (7)
1. the researching tool of a Corbicula fluminea population, it is characterised in that: include the latticed catching device of front opening and back-end closure,
The front elevational sectional of described latticed catching device is more than rear end section；Described latticed catching device includes framework, and described framework welds
Being connected to a plurality of interlaced and form the net bar of evenly sized mesh, the front end of described framework is also surrounded with securing member, institute
Stating securing member and connect the pull bar having forward upward to be obliquely installed, the end of described pull bar is provided with is easy to drawing of fixing trawlnet rope
Ring.
2. the researching tool of Corbicula fluminea population as claimed in claim 1, it is characterised in that: described framework use stainless-steel pipe or
Reinforcing bar is welded.
3. the researching tool of Corbicula fluminea population as claimed in claim 1, it is characterised in that: described net bar is steel bar.
4. the researching tool of Corbicula fluminea population as claimed in claim 1, it is characterised in that: described securing member is iron hoop.
5. the researching tool of Corbicula fluminea population as claimed in claim 4, it is characterised in that: described pull bar passes through with described securing member
Bolt is detachably connected.
6. the researching tool of Corbicula fluminea population as claimed in claim 1, it is characterised in that: the front end net of described latticed catching device
Mouth cross section is 35cmX60cm；Back-end network basal cross section is 30cmX45cm；Mesh size is 15mmX15mm.
7. the researching tool of the Corbicula fluminea population as described in any one of claim 1 to 6, it is characterised in that: described pull bar uses
The stainless-steel pipe of 1.5m length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667460.4U CN205848397U (en) | 2016-06-27 | 2016-06-27 | A kind of researching tool of Corbicula fluminea population |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667460.4U CN205848397U (en) | 2016-06-27 | 2016-06-27 | A kind of researching tool of Corbicula fluminea population |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205848397U true CN205848397U (en) | 2017-01-04 |
Family
ID=57644218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620667460.4U Expired - Fee Related CN205848397U (en) | 2016-06-27 | 2016-06-27 | A kind of researching tool of Corbicula fluminea population |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205848397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306901A (en) * | 2017-06-28 | 2017-11-03 | 贺州思通信息技术有限公司 | A kind of razor clam trap |
| CN108522448A (en) * | 2018-05-04 | 2018-09-14 | 佛山科学技术学院 | A kind of tool of fishing snail animal |
-
2016
- 2016-06-27 CN CN201620667460.4U patent/CN205848397U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306901A (en) * | 2017-06-28 | 2017-11-03 | 贺州思通信息技术有限公司 | A kind of razor clam trap |
| CN108522448A (en) * | 2018-05-04 | 2018-09-14 | 佛山科学技术学院 | A kind of tool of fishing snail animal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20170627 |