CN202566015U - Zooplankton on-site ingestion testing device - Google Patents
Zooplankton on-site ingestion testing device Download PDFInfo
- Publication number
- CN202566015U CN202566015U CN 201220112213 CN201220112213U CN202566015U CN 202566015 U CN202566015 U CN 202566015U CN 201220112213 CN201220112213 CN 201220112213 CN 201220112213 U CN201220112213 U CN 201220112213U CN 202566015 U CN202566015 U CN 202566015U
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- zooplankton
- filter screen
- shell body
- ingestion
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Abstract
The utility model discloses a zooplankton on-site ingestion testing device which is characterized by comprising a transparent cylindrical shell body, two ends of the shell body are provided with openings, two ends of the transparent cylindrical shell body are respectively connected with a fixing plate with a filter screen in a buckled mode, the diameter of each mesh on the filter screen ranges from 60 micrometers to 3000 micrometers, a pull rod is arranged on each fixing plate, a seal ring is arranged between each fixing plate and the transparent cylindrical shell body, and the outer side of the transparent cylindrical shell body is provided with hanging rings; the filter screen is formed by two layers of branch filter screen, and the diameter of each mesh on each layer of branch filter screen ranges from 60 micrometers to 3000 micrometers; and the number of the hanging rings is two, and the hanging rings are symmetrically arranged. The zooplankton on-site ingestion testing device is simple in structure, ingenious in design and reasonable in distribution, can quantificationally test zooplankton on-site ingestion situations, and enables people to conveniently master that zooplankton plays an important role in material circulation and energy flow in the environment of water areas.
Description
Technical field
The utility model relates to a kind of determinator, particularly a kind of zooplankton original position determinator of ingesting.
Background technology
Zooplankton (zooplankton) is meant the plankton of battalion's heterotrophism life in the water.Be biology important in the water environment, comprise most of class of invertebrate, both from the protozoa of minimum grade to more high urochordata, almost each type all has the representative of zooplankton, also comprises the larva of many large-scale zoobenthos simultaneously.Therefore, zooplankton is a very complicated mores.Though some zooplankton kind is few, its quantity is huge, and it is wide to distribute, and is one of important monoid of marine zooplankton.Itself can be used as the natural bait of many economic fishes, shrimps, but then, some zooplankton can prey on prelarva or juvenile fish, so there is certain harmfulness in spawning ground and fishery.Therefore understand the food species composition of zooplankton in the water environment, the situation of ingesting, the selectivity of food, the seasonal variation of feeding habits; Energy transfer efficiency of food etc. particularly helps further to grasp the important function that is risen in material circulation and the energy Flow of zooplankton in water environment.But also do not have now a kind ofly can let people determine the device of the above-mentioned relevant parameter of zooplankton easily.
Summary of the invention
The utility model is in order to solve the above-mentioned deficiency of existing in prior technology; Propose a kind of simple in structure; Design ingenious; Rationally distributed, can accurately determine the zooplankton situation of ingesting quantitatively, be convenient to people and grasp zooplankton original position that zooplankton the plays an important role determinator of ingesting in the material circulation of water environment and energy Flow.
The technical solution of the utility model is: a kind of zooplankton original position determinator of ingesting; It is characterized in that: it comprises the transparent tubular shell 1 of a both ends open; Be snapped with the fixed disk 3 that has screen pack 2 respectively at the two ends of transparent tubular shell 1, wherein the mesh diameter scope of screen pack 2 is 60-3000 um, on fixed disk 3, also is provided with pull bar 4; Between fixed disk 3 and transparent tubular shell 1, also be provided with sealing ring 5, the outside of transparent tubular shell 1 also is provided with hanging ring 6.
Described screen pack 2 is made up of double-layer separate screen pack at least, and the mesh diameter scope of every layer of branch screen pack is 60-3000 um.
Described hanging ring 6 is two, and is symmetrical set.
The utility model is compared with prior art, has following advantage:
The zooplankton original position of this kind of version determinator of ingesting; It is simple in structure; Design ingeniously, it creatively is placed on tested zooplankton and bait zooplankton in the space of a relative closure jointly, with understand the food species composition of tested zooplankton, the situation of ingesting, to the selectivity of food, the seasonal variation situation of feeding habits; The data parameters such as energy transfer efficiency of food particularly; And because its special construction, can accomplish both not allowed that experiment is biological escapes, the exchange with nutriment of flowing of water body that again can the biological surrounding environment of guarantee test.And its manufacture craft is simple, and is cheap for manufacturing cost, therefore we can say that it has possessed multiple advantage, is particularly suitable for applying in the art.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below with the embodiment of accompanying drawings the utility model.As shown in Figure 1: a kind of zooplankton original position determinator of ingesting; Its main part is the transparent tubular shell 1 of a both ends open; Two ends at this transparent tubular shell 1 are snapped with fixed disk 3 respectively; Fixed disk 3 is provided with screen pack 2, swims out of from screen pack 2 in order to prevent zooplankton, and the mesh diameter of screen pack 2 should be in the scope of 60-3000 um (the concrete diameter of mesh should decide according to the size of tested zooplankton and bait zooplankton); Simultaneously screen pack 2 is made up of double-layer separate screen pack at least, and the mesh diameter scope of every layer of branch screen pack is all in 60-3000 um; For ease with the installation and removal of fixed disk 3; On fixed disk 3, also be provided with pull bar 4; Swim out of in transparent tubular shell 1 in order to prevent tested zooplankton or bait zooplankton; Between fixed disk 3 and transparent tubular shell 1, also be provided with sealing ring 5, transparent for ease tubular shell 1 be fixed in suspension, also be provided with the hanging ring 6 of two symmetries in its outside.
The ingest course of work of determinator of the zooplankton original position of the utility model embodiment is following: at first the fixed disk 3 of transparent tubular shell 1 one ends is opened; And the other end that will not open fixed disk 3 is placed under the water surface in waters to be measured; In transparent tubular shell 1, pour tested zooplankton and bait zooplankton then into; Then with the fixed disk of opening 3 fastening again on transparent tubular shell 1; And transparent tubular shell 1 all sunk under the water, this moment, transparent tubular shell 1 hung on the static line through hanging ring 6, remained among the tested waters.Because the existence of multiple filtration net 2; Tested zooplankton and bait zooplankton in the transparent tubular shell 1 all can't be from wherein swimming out of; Can accomplish both not allowed the biological escape of experiment; Again can guarantee test the water body of the biological surrounding environment purpose with the exchange of nutriment that flows, make in its experimental enviroment that is in original position all the time, can obtain experiment effect and data comparatively accurately.It can be placed on the different depth water layer in different waters or same waters simultaneously, can test the situation of ingesting of different water layer zooplanktons.
Behind the test certain hour; The experimenter takes out transparent tubular shell 1 from the waters; Add up kind and the quantity of remaining bait zooplankton in the transparent tubular shell 1 respectively through laboratory facilities; Data parameters such as energy transfer efficiency with selectivity, daily ration and the feed coefficient, particularly food of understanding food species composition, the situation of ingesting, food.
Claims (3)
1. zooplankton original position determinator of ingesting; It is characterized in that: it comprises the transparent tubular shell (1) of a both ends open; Be snapped with the fixed disk (3) that has screen pack (2) respectively at the two ends of transparent tubular shell (1); Wherein the mesh diameter scope of screen pack (2) is 60-3000 um; On fixed disk (3), also be provided with pull bar (4), between fixed disk (3) and transparent tubular shell (1), also be provided with sealing ring (5), the outside of transparent tubular shell (1) also is provided with hanging ring (6).
2. according to the determinator of ingesting of the zooplankton original position under the claim 1, it is characterized in that: described screen pack (2) is made up of double-layer separate screen pack at least, and the mesh diameter scope of every layer of branch screen pack is 60-3000 um.
3. the zooplankton original position according to claim 2 determinator of ingesting, it is characterized in that: described hanging ring (6) is two, and is symmetrical set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112213 CN202566015U (en) | 2012-03-23 | 2012-03-23 | Zooplankton on-site ingestion testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112213 CN202566015U (en) | 2012-03-23 | 2012-03-23 | Zooplankton on-site ingestion testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202566015U true CN202566015U (en) | 2012-12-05 |
Family
ID=47235497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220112213 Expired - Fee Related CN202566015U (en) | 2012-03-23 | 2012-03-23 | Zooplankton on-site ingestion testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202566015U (en) |
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2012
- 2012-03-23 CN CN 201220112213 patent/CN202566015U/en not_active Expired - Fee Related
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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: 20121205 Termination date: 20130323 |