CN112866607B - Aquatic animal habitat selection shooting and recording test device - Google Patents
Aquatic animal habitat selection shooting and recording test device Download PDFInfo
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- CN112866607B CN112866607B CN202110235936.2A CN202110235936A CN112866607B CN 112866607 B CN112866607 B CN 112866607B CN 202110235936 A CN202110235936 A CN 202110235936A CN 112866607 B CN112866607 B CN 112866607B
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- 238000012360 testing method Methods 0.000 title claims abstract description 113
- 241001465754 Metazoa Species 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 201
- 230000007613 environmental effect Effects 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 description 35
- 230000006399 behavior Effects 0.000 description 12
- 239000000758 substrate Substances 0.000 description 10
- 238000005286 illumination Methods 0.000 description 9
- 241001275867 Schizothorax Species 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
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- 238000004140 cleaning Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 241000252212 Danio rerio Species 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 108010008359 protein kinase C lambda Proteins 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses an aquatic animal habitat selection shooting and recording test device which comprises a rack, a lens and a camera; the machine frame is sequentially provided with a water inlet groove, a circulating water groove and a water return groove along a first direction, the bottom end of the water inlet groove is higher than the bottom end of the circulating water groove, the bottom end of the circulating water groove is higher than the bottom end of the water return groove, the bottom end of the water return groove is provided with a water outlet, the water outlet is communicated with the water inlet groove through a water inlet pipe, and the water inlet pipe is provided with a circulating pump; be provided with rectification bars and baffle in the circulation tank, the baffle can be dismantled with the circulation tank and be connected, and rectification bars and baffle are all vertical and all perpendicular to first direction, have the gap between baffle and the inner wall of circulation tank, and the interval is provided with a plurality of baffle between rectification bars and the baffle, and the lens level sets firmly in the top of rectification bars and baffle, and the camera sets firmly in the top of lens. The aquatic animal habitat selection shooting test device provided by the invention has high test accuracy.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a device for selecting and recording a habitat of an aquatic animal.
Background
The fish behaviours are subjects for researching the interaction problem of fish to the environment and other organisms, and have important guiding significance for fish resource protection, fishery cultivation production and the like. The fish preference behavior is an effective index for measuring the selection and preference degree of the fish to different thresholds of the environmental factors, and is important content in research of natural habitat protection, fish passing facility design, welfare cultivation and the like of the fish. Environmental factors such as illumination and substrate are conventional content in fish behavior preference research. The fish preference behavior study is obtained based on parameters such as distribution frequency, active time, speed and distance of fish in various different environmental factors. The habitat selection recording test is an important test for studying aquatic animals.
In the existing habitat selection shooting test equipment, the phenomenon that a baffle shields the movement track of animals often occurs, so that the test process is complex, and the labor cost is increased. In the existing illumination habitat selection shooting test, waterproof point light sources are mostly adopted for the underwater illumination test, the test cost is high, the waterproof point light sources cannot form uniform light fields, the underwater illumination intensity is uneven, the fish illumination habitat selection cannot be analyzed because of light color or light intensity, and the test result is inaccurate.
The static water test method is generally adopted in the study of illumination and substrate preference behavior, or is carried out in a similar loop of flow rate selection. By adopting the still water test method, the fish is likely to stay in place or swim without exceeding the boundary of the environmental factors due to lack of swimming behavior induction, so that the preference behavior cannot be truly reflected, and test errors or conclusion errors are caused. By adopting the loop test method, a flow velocity gradient distribution mode with uniform transverse flow velocity and different longitudinal flow velocity can be formed, so that behavior interference of fishes can be generated due to the flow resistance in the test process, and the test result is not convinced. In addition, in most running water tests, fluctuation of the water surface is caused, so that picture interference occurs in the later stage of behavior refinement analysis by using software.
In the video acquisition process of fish behaviors, the condition that a baffle plate in a test area shields a fish motion track often occurs, so that test errors are generated during software tracking. For each test, manual correction is needed, so that a great deal of manpower and time are consumed, and the test progress is affected.
In addition, when environmental factors such as dissolved oxygen and flow velocity are collected in the related test, because the test device is not separated from the collection area, the track tracking of aquatic animals can be influenced by the existence of equipment in real time monitoring, so that the conventional test mostly adopts a mode of collecting after the test. Besides being incapable of monitoring the water environment in real time, the animal's locomotor activity is also changed.
Disclosure of Invention
The invention aims to provide an aquatic animal habitat selection shooting and recording test device, which solves the problems in the prior art and improves the accuracy of an aquatic animal habitat selection shooting and recording test structure.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides an aquatic animal habitat selection shooting and recording test device which comprises a rack, a lens and a camera; the water inlet tank, the circulating water tank and the water return tank are sequentially arranged on the frame along a first direction, the bottom end of the water inlet tank is higher than the bottom end of the circulating water tank, the bottom end of the circulating water tank is higher than the bottom end of the water return tank, the bottom end of the water return tank is provided with a water outlet, the water outlet is communicated with the water inlet tank through a water inlet pipe, and a circulating pump is arranged on the water inlet pipe; the water in the water inlet tank can flow into the circulating water tank through a water inlet at the bottom end of the water inlet tank, a water return port is arranged at one end, close to the water return tank, of the circulating water tank, and the water in the circulating water tank can flow into the water return tank through the water return port; the circulating water tank is internally provided with a rectification grid and a baffle, the baffle is detachably connected with the circulating water tank, the rectification grid and the baffle are vertical and are perpendicular to the first direction, gaps are formed between the baffle and the inner wall of the circulating water tank, a plurality of vertical baffles parallel to the first direction are arranged between the rectification grid and the baffle at intervals, the lens is horizontally and fixedly arranged above the rectification grid and the baffle, and the camera is fixedly arranged above the lens; the bottom plate of the circulating water tank is transparent, a test area is arranged between the rectifying grating and the baffle, a lamplight placing area which is arranged below the test area is arranged on the rack, and the lamplight placing area is used for placing a lamp strip.
Preferably, a flow velocity measuring instrument is arranged in the circulating water tank, and the flow velocity measuring instrument is positioned at one side of the rectifying grid far away from the baffle plate; an environmental index detector is arranged in the water return tank; the flow velocity measuring instrument, the environmental index detecting instrument and the camera are respectively connected with a computer through signals.
Preferably, a rectifying plate is slidably arranged on the side wall, close to the circulating water tank, of the water inlet tank, the rectifying plate is vertically inserted into the water inlet tank, and a fixing screw for fixing the rectifying plate is further arranged on the water inlet tank; the circulating water tank is provided with a slot corresponding to the rectifying plate, and the rectifying plate is in sliding fit with the slot; and a gap between the bottom end of the rectifying plate and the bottom plate of the water inlet groove is the water inlet.
Preferably, the bottom end of the water inlet is provided with a first slow flow plate extending into the circulating water tank, and one end of the first slow flow plate far away from the water inlet is lower than one end of the first slow flow plate close to the water inlet; the bottom of return water mouth is provided with one and stretches to the second slow flow board in the return water groove, the second slow flow board keeps away from the one end of return water mouth is less than the one end that the second slow flow board is close to the return water mouth.
Preferably, the circulating water tank is transparent, the baffle is black organic glass, the partition plate is white organic glass, and the rectifying grid is a honeycomb made of plastic materials.
Preferably, the circulating water tank is sequentially divided into a slow flow area, a test area and an adaptation area along the first direction, the rectifying grid is positioned between the slow flow area and the test area, and the baffle is positioned between the test area and the adaptation area.
Preferably, the water outlet is communicated with the water inlet pipe through a three-way pipe, a drain pipe is further connected to the three-way pipe, and a valve is arranged on the drain pipe.
Preferably, one end of each baffle plate is in contact with the rectification grid, and the other end is in contact with the baffle plate.
Preferably, the bottom ends of the four corners of the frame are respectively provided with a trundle.
Compared with the prior art, the invention has the following technical effects:
The aquatic animal habitat selection shooting test device provided by the invention has high test accuracy. The aquatic animal habitat selection shooting and recording test device can realize panoramic shooting and recording of a test area; the water-light isolation is realized, and the test cost is reduced; the aquatic animal habitat selection shooting and recording test device can monitor the physical environment of the test water body for a long time to obtain an accurate behavior-water environment interaction relationship; the aquatic animal habitat selection shooting and recording test device adopts the slow flow plate and the rectifying grid, the water flow is manufactured into test water flow with uniform speed and flow field, and the test area is corrected through the lens, so that the labor is greatly saved, and the test time is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a device for selecting and recording a habitat of an aquatic animal according to the present invention;
FIG. 2 is a schematic diagram of a portion of a device for testing a habitat selection of aquatic animals according to the present invention;
FIG. 3 is a schematic diagram of a portion of a device for testing a habitat selection of aquatic animals according to the present invention;
FIG. 4 is a schematic diagram of a portion of a device for testing a habitat selection of aquatic animals according to the present invention;
FIG. 5 is a schematic diagram showing a part of a device for selectively shooting and testing the habitat of aquatic animals according to the present invention;
Wherein: 100. the aquatic animal habitat selection shooting test device; 1. a water inlet tank; 2. a rectifying plate; 3. a water inlet; 4. a flow rate meter; 5. a circulation water tank; 6. a rectifying gate; 7. a partition plate; 8. a baffle; 9. a lens; 10. a water return port; 11. a second slow flow plate; 12. an environmental index detector; 13. a water return tank; 14. a light placement area; 15. a frame; 16. a water inlet pipe; 17. casters; 18. a camera; 19. a slow flow region; 20. a test zone; 21. an adaptation zone; 22. a first slow flow plate; 23. a circulation pump; 24. a drain pipe; 25. and (5) fixing a screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide an aquatic animal habitat selection shooting and recording test device, which solves the problems in the prior art and improves the accuracy of an aquatic animal habitat selection shooting and recording test structure.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 5: the embodiment provides an aquatic animal habitat selection shooting and recording test device 100, which comprises a frame 15, a lens 9 and a camera 18, wherein the bottom ends of four corners of the frame 15 are respectively provided with a trundle 17.
The frame 15 is provided with a water inlet tank 1, a circulating water tank 5 and a water return tank 13 in sequence along a first direction, wherein the first direction is from left to right based on the view angle of fig. 2; the bottom end of the water inlet tank 1 is higher than the bottom end of the circulating water tank 5, the bottom end of the circulating water tank 5 is higher than the bottom end of the water return tank 13, the bottom end of the water return tank 13 is provided with a water outlet, the water outlet is communicated with the water inlet tank 1 through a water inlet pipe 16, the water outlet is communicated with the water inlet pipe 16 through a three-way pipe, a water outlet pipe 24 is further connected to the three-way pipe, a valve is arranged on the water outlet pipe 24, the water outlet pipe 24 can conveniently discharge water after the test is finished, water in the water inlet tank 1 can flow into the circulating water tank 5 through a water inlet 3 at the bottom end of the water inlet tank 1, one end, close to the water return tank 13, of the circulating water tank 5 is provided with a water return port 10, and water in the circulating water tank 5 can flow into the water return tank 13 through the water return port 10; the water inlet pipe 16 is provided with a circulating pump 23, and the water body can flow circularly from the water inlet tank 1, the circulating water tank 5, the water return tank 13, the water inlet pipe 16 and the water inlet tank 1 under the action of the circulating pump 23.
The side wall of the water inlet tank 1, which is close to the circulating water tank 5, is provided with a rectifying plate 2 in a sliding manner, the rectifying plate 2 is vertically inserted into the water inlet tank 1, and the water inlet tank 1 is also provided with a fixing screw 25 for fixing the rectifying plate 2; the circulating water tank 5 is provided with a slot corresponding to the rectifying plate 2, and the rectifying plate 2 is in sliding fit with the slot; the gap between the bottom end of the rectifying plate 2 and the bottom plate of the water inlet tank 1 is the water inlet 3. The size of the water inlet 3 can be adjusted by vertically moving the rectifying plate 2 so as to adjust the water flow.
The bottom end of the water inlet 3 is provided with a first slow flow plate 22 extending into the circulating water tank 5, and one end of the first slow flow plate 22 far away from the water inlet 3 is lower than one end of the first slow flow plate 22 close to the water inlet 3; the bottom of the water return port 10 is provided with a second slow flow plate 11 extending into the water return tank 13, and one end of the second slow flow plate 11 far away from the water return port 10 is lower than one end of the second slow flow plate 11 close to the water return port 10. The arrangement of the first slow flow plate 22 and the second slow flow plate 11 can make the water flow into test water flow with uniform speed and uniform flow field, and simulate the living environment of aquatic animals realistically.
The circulating water tank 5 is internally provided with a rectification grid 6 and a baffle plate 8, the baffle plate 8 is detachably connected with the circulating water tank 5, the rectification grid 6 and the baffle plate 8 are vertical and are vertical to a first direction, gaps are formed between the baffle plate 8 and the inner wall of the circulating water tank 5, a plurality of vertical baffle plates 7 parallel to the first direction are arranged between the rectification grid 6 and the baffle plate 8 at intervals, a lens 9 is horizontally and fixedly arranged above the rectification grid 6 and the baffle plate 8, and a camera 18 is fixedly arranged above the lens 9; the bottom plate of circulation tank 5 is transparent, and circulation tank 5 divide into slow flow district 19, test area 20 and adaptation district 21 in proper order along first direction, and rectification bars 6 are located between slow flow district 19 and the test area 20, and baffle 8 is located between test area 20 and the adaptation district 21, is test area 20 between rectification bars 6 and the baffle 8, and circulation tank 5 is transparent, and baffle 8 is black organic glass, and baffle 7 is white organic glass, and rectification bars 6 are the honeycomb of plastics material. Each of the partitions 7 has one end in contact with the rectification gate 6 and the other end in contact with the baffle plate 8.
The frame 15 is provided with a lamplight placing area 14 below the test area 20, and the lamplight placing area 14 is used for placing a lamp strip. The arrangement of the lamplight placement area 14 realizes water-light isolation, reduces test cost, and can form a uniform light field, so that illumination intensity is uniform, and test accuracy is prevented from being influenced by non-uniform illumination intensity.
A flow velocity measuring instrument 4 is arranged in the circulating water tank 5, and the flow velocity measuring instrument 4 is positioned at one side of the rectifying grid 6 far away from the baffle plate 8; an environmental index detector 12 is arranged in the water return tank 13; the flow rate measuring instrument 4, the environmental index detecting instrument 12 and the camera 18 are respectively connected with a computer signal, and the camera 18 is an infrared camera 18.
Embodiment one:
Illumination preference test.
Preparation work before test: according to fig. 1, a device 100 for selecting and recording the aquatic animal habitat is constructed, the circulating water tank 5 is filled with water, and the water inflow and the water outflow are regulated by the circulating pump 23. Nine lamp bands (430 nm, 460nm, 500nm, 520nm, 540nm, 570nm, 590nm, 620nm, 635 nm) with different spectrums are arranged in the test region 20, and the light intensity is regulated. Building a required environment;
fish preference test: after 1 test fish was placed in the adaptation field 21 for 30 minutes, the baffle 8 was opened and the position of the fish profile was observed using the infrared camera 18. Continuously recording for 24 hours, and recording the quantity of fish in each test zone 20 every 5 minutes;
Test data acquisition and preference index calculation: through video recording playback, the formula is used: and (2) calculating the occurrence frequency percentage of the heavy-mouth schizothorax in white light, green light, red light and blue light by using the formula of P= (N/N) 100%, wherein P is the occurrence frequency percentage, N is the number of the heavy-mouth schizothorax in white light, green light, red light or blue light, and N is the total number of the heavy-mouth schizothorax.
Maintenance and cleaning of the device: after the test is finished, the test device and the matched subsystem are disassembled, cleaned and maintained, and then are stored in a classified mode.
Each fish is tested and recorded for 24 hours, 6 groups are repeated, and the test results are as follows, so that the occurrence frequency percentages of the heavy-mouth schizothorax with the specification at 430nm, 460nm, 500nm, 520nm, 540nm, 570nm, 590nm, 620nm and 635nm are respectively: 11.8%,10.0%,4.9%,7.5%,10.7%,21.4%,11.5%,6.2% and 16.0%.
Example two
And (5) taking the heavy-mouth schizothorax as a test fish to perform a substrate preference test.
Preparation work before test: an aquatic animal habitat selection and recording test device 100 is constructed according to the drawings, the water tank is filled with water, and the water inflow and water outflow are regulated by a circulating pump 23. Nine different substrates (blank, sand, fine gravel, crushed gravel, cobblestones, big cobblestones, compound habitat) are arranged in the test area 20 to create a required environment;
Fish preference test: after 1 test fish was accommodated in the accommodation area 21 for 30 minutes, the shutter 8 was opened, and the position of the fish profile was observed and recorded using the infrared camera 18. Continuously recording for 24 hours, and recording the quantity of fish in each test zone 20 every 5 minutes;
Test data acquisition and preference index calculation: through video recording playback, the formula is used: p= (N/N) 100% the frequency of occurrence percentage in the cement pond bottom, crushed gravel, cobblestone and big cobblestone test area 20 was calculated, where P is the frequency of occurrence percentage, N is the number of test fish in the cement pond bottom, crushed gravel, little cobblestone or big cobblestone, and N is the total number of test fish.
Maintenance and cleaning of the device: after the test is finished, the test device and the matched subsystem are disassembled, cleaned and maintained, and then are stored in a classified mode.
In the experiment, a substrate preference study is carried out by taking a heavy-mouth schizothorax fish with an average body length of 5cm as a target, wherein the substrate is set as a blank control, sand, fine gravel, crushed gravel, cobblestone, large cobblestone and a compound habitat. Each test record is 24 hours, 6 groups are repeated, the test results are as follows, the substrate is set as blank control, sand, fine gravel, broken gravel, cobble, big cobble and the occurrence frequency percentage in the composite habitat area are respectively as follows: 11.6%,9.9%,4.7%,7.3%,10.5%,21.2%,11.3%,6.1% and 17.5%.
Example III
And (5) taking the zebra fish as a test fish to perform a substrate behavior test.
1. Preparation work before test: an aquatic animal habitat selection and recording test device 100 is constructed according to the drawings, the circulating water tank 5 is filled with water, and the water inflow and water outflow are regulated by the circulating pump 23. Eight different substrates (cement, sand, crushed gravel, cobble, big cobble, compound habitat) are arranged in the test area 20 to create a required environment;
2. fish preference test: after 1 test fish was accommodated in the accommodation area 21 for 30 minutes, the shutter 8 was opened, and the position of the fish profile was observed and recorded using the infrared camera 18. Continuously recording for 24 hours, and tracking fine behaviors by utilizing video tracking software;
3. calculating the active time, speed, distance and the like of the fish;
Fish movement = previous frame pixel-next frame pixel.
When the movement of fish is <20% body length, the movement is defined as low activity; a body length of 20% < movement of fish <80% >, the movement defined as active; when the movement of fish >80% body length, the movement is defined as highly active.
The speed is the moving distance of fish per second.
The distance is the total moving distance within 24 h.
4. Maintenance and cleaning of the device: after the test is finished, the test device and the matched subsystem are disassembled, cleaned and maintained, and then are stored in a classified mode.
The test results are as follows: it can be seen that the zebra fish has long residence time and long moving distance on the cobble, but has slower moving speed. In summary, the preferred substrate for zebra fish is cobblestone.
In the description of the present invention, it should be noted that the terms "top," "bottom," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (9)
1. An aquatic animal habitat selection shooting test device is characterized in that: comprises a frame, a lens and a camera; the water inlet tank, the circulating water tank and the water return tank are sequentially arranged on the frame along a first direction, the bottom end of the water inlet tank is higher than the bottom end of the circulating water tank, the bottom end of the circulating water tank is higher than the bottom end of the water return tank, the bottom end of the water return tank is provided with a water outlet, the water outlet is communicated with the water inlet tank through a water inlet pipe, and a circulating pump is arranged on the water inlet pipe; the water in the water inlet tank can flow into the circulating water tank through a water inlet at the bottom end of the water inlet tank, a water return port is arranged at one end, close to the water return tank, of the circulating water tank, and the water in the circulating water tank can flow into the water return tank through the water return port; the circulating water tank is internally provided with a rectification grid and a baffle, the baffle is detachably connected with the circulating water tank, the rectification grid and the baffle are vertical and are perpendicular to the first direction, gaps are formed between the baffle and the inner wall of the circulating water tank, a plurality of vertical baffles parallel to the first direction are arranged between the rectification grid and the baffle at intervals, the lens is horizontally and fixedly arranged above the rectification grid and the baffle, and the camera is fixedly arranged above the lens; the bottom plate of the circulating water tank is transparent, a test area is arranged between the rectifying grating and the baffle, a lamplight placing area which is arranged below the test area is arranged on the rack, and the lamplight placing area is used for placing a lamp strip.
2. The aquatic animal habitat selection recording testing device of claim 1 wherein: a flow velocity measuring instrument is arranged in the circulating water tank and is positioned at one side of the rectifying grid far away from the baffle plate; an environmental index detector is arranged in the water return tank; the flow velocity measuring instrument, the environmental index detecting instrument and the camera are respectively connected with a computer through signals.
3. The aquatic animal habitat selection recording testing device of claim 1 wherein: the side wall of the water inlet tank, which is close to the circulating water tank, is provided with a rectifying plate in a sliding manner, the rectifying plate is vertically inserted into the water inlet tank, and the water inlet tank is also provided with a fixing screw for fixing the rectifying plate; the circulating water tank is provided with a slot corresponding to the rectifying plate, and the rectifying plate is in sliding fit with the slot; and a gap between the bottom end of the rectifying plate and the bottom plate of the water inlet groove is the water inlet.
4. The aquatic animal habitat selection recording testing device of claim 3 wherein: the bottom end of the water inlet is provided with a first slow flow plate extending into the circulating water tank, and one end of the first slow flow plate far away from the water inlet is lower than one end of the first slow flow plate close to the water inlet; the bottom of return water mouth is provided with one and stretches to the second slow flow board in the return water groove, the second slow flow board keeps away from the one end of return water mouth is less than the one end that the second slow flow board is close to the return water mouth.
5. The aquatic animal habitat selection recording testing device of claim 1 wherein: the circulating water tank is transparent, the baffle is black organic glass, the partition plate is white organic glass, and the rectifying grid is a honeycomb made of plastic materials.
6. The aquatic animal habitat selection recording testing device of claim 1 wherein: the circulating water tank is sequentially divided into a slow flow area, a test area and an adaptation area along the first direction, the rectifying grid is positioned between the slow flow area and the test area, and the baffle is positioned between the test area and the adaptation area.
7. The aquatic animal habitat selection recording testing device of claim 1 wherein: the water outlet is communicated with the water inlet pipe through a three-way pipe, a drain pipe is further connected to the three-way pipe, and a valve is arranged on the drain pipe.
8. The aquatic animal habitat selection recording testing device of claim 1 wherein: one end of each baffle plate is contacted with the rectifying grid, and the other end is contacted with the baffle plate.
9. The aquatic animal habitat selection recording testing device of claim 1 wherein: the bottom ends of the four corners of the frame are respectively provided with a trundle.
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