Living target-based seawater crab attack ability testing device

Abstract

The application discloses a live target-based seawater crab attack ability testing device and belongs to the technical field of biological observation. The device comprises a second water tank, the second water tank is arranged above a rack and a through hole is formed in the upper portion of the second water tank, an observation assembly is arranged on the second water tank, the observation assembly comprises a camera and a sliding plate capable of moving the camera. The scheme solves the problems of observation limitation and insufficient environmental control of the existing testing device, and realizes observation of the interactive behavior of seawater crabs and other organisms and ensures the accuracy of the obtained data.

Description

Technical Field

[0001] This invention relates to the field of biological observation technology, specifically to a device for testing the attack capabilities of marine crabs based on live targets. Background Technology

[0002] In the field of marine biology research, the attack ability of saltwater crabs is an important indicator for assessing their survival adaptability, interspecies competition ability, and ecological niche. Currently, testing the attack ability of saltwater crabs largely relies on manual observation or simple devices, which have many limitations. On the one hand, existing testing devices lack dedicated observation systems, and due to fixed shooting angles and limited range, it is difficult to fully record the interaction process between the crab and the target, leading to the loss of details of key attack behaviors and affecting data accuracy. On the other hand, water bodies are prone to turbidity due to biological activity, and traditional observation equipment lacks a cleaning mechanism, easily resulting in blurred images and further reducing observation accuracy. To address this, existing technologies have proposed biological observation devices, such as the invention JP2024163678A, which provides a tank and cultivation support system capable of efficient cultivation. It includes a water tank and a camera device. The water tank, located within the cultivation area, contains aquatic animals that tend to hide in the sand and has a bottom surface opposite the cultivation area. The camera device can photograph the cultivation area. However, existing technologies do not yet have a promising application prospect in the observation of saltwater crabs, making it difficult to observe the interaction behavior of saltwater crabs with other organisms and ensure the accuracy of the acquired data. Summary of the Invention

[0003] The purpose of this invention is to provide a testing device for the attack capabilities of marine crabs based on live targets, which solves the problems of observation limitations and insufficient environmental control in existing testing devices, and enables the observation of the interaction behavior of marine crabs with other organisms and ensures the accuracy of the acquired data.

[0004] To address the aforementioned technical problems, this invention provides the following technical solution: a marine crab attack capability testing device based on a live target, comprising a second water tank positioned above a frame with a through-type upper section. An observation component is mounted on the second water tank, including a camera and a sliding plate capable of moving the camera. The second water tank of this invention is used to hold marine crabs and live targets, while providing an open field of view for observation. The sliding plate of the observation component can move the camera, flexibly adjusting its position to observe different areas within the second water tank, capturing details of the interaction and attack behavior between the marine crab and the target. This invention improves the completeness and accuracy of attack behavior recording.

[0005] According to one embodiment of the present invention, the observation component has a rolling element disposed below the slide plate, a motor for driving the rolling element to move is provided at the bottom of the slide plate, and a slide rail cooperating with the rolling element is provided above the second water tank. The slide rail is connected to the frame by a support rod on its side. The rolling element below the slide plate cooperates with the slide rail above the second water tank. Driven by the motor at the bottom of the slide plate, the line of sight moves the camera along the slide rail, thus collecting observation data from different areas within the second water tank. The slide rail is connected to the frame by the support rod, and the support force of the frame enhances the structural stability of the slide rail, preventing wobbling during the movement of the rolling element and ensuring the clarity of the camera's images.

[0006] According to one embodiment of the present invention, the image acquisition end of the camera is located at the bottom of the slide plate, facing the second water tank, and a blowing device is provided at the bottom of the slide plate relative to the camera. The camera's image acquisition end being located at the bottom of the slide plate and facing the second water tank allows for direct aiming at the interior of the second water tank, accurately capturing the interaction and attack behavior of seawater crabs with live targets, ensuring the targeted and effective shooting angle. The blowing device at the bottom of the slide plate relative to the camera can specifically blow away the area in front of the camera's image acquisition end, reducing interference from impurities and air bubbles in the water, avoiding image blurring, and improving the clarity of the image data acquired by the camera.

[0007] According to one embodiment of the present invention, the purging component includes a housing with a hollow interior. One end has an inlet sealing plate connected to an air pump mounted on one side of the frame via a pipe. The other end of the housing has an outlet sealing plate with a through hole. Gas supplied by the air pump enters the housing through the inlet sealing plate and exits through the through hole in the outlet sealing plate. Part of the airflow purges the area in front of the camera's image acquisition end, removing impurities and air bubbles from the water to avoid obstructing the shooting view and ensuring the clarity of the images acquired by the camera. Part of the airflow acts on the water in the second tank, slightly disturbing the water flow. This disturbance stimulates the instinctive movement of both the sea crab and the live target, causing them to move more frequently and increasing the probability of contact, thus making it easier to trigger attack behavior and improving the efficiency of acquiring effective interaction data during testing.

[0008] According to one embodiment of the present invention, a circular rotating block is built into the housing, and a sliding groove is formed around the side of the rotating block. A sliding insert plate is inserted into the groove. The distance between the rotating block and the housing prevents the insert plate from dislodging from the groove. The cooperation structure between the circular rotating block and the insert plate built into the housing can regulate airflow. Specifically, when the rotating block rotates, its side groove drives the insert plate to slide, which can change the range and intensity of airflow through the outlet sealing plate through hole. At the same time, the distance between the rotating block and the housing prevents the insert plate from dislodging from the groove, ensuring structural stability.

[0009] According to one embodiment of the present invention, a sliding plate capable of horizontal sliding is provided between the second water tank and the observation component. The sliding plate is connected to the frame via a mounting base, and a first air pipe connected to an air pump is provided on the mounting base. The mounting base includes two vertical plates, which are located outside the second water tank and connected to the frame. The two vertical plates are connected by two short plates, which are located above the second water tank. Sliding grooves are provided on the opposite surfaces of the vertical plates, allowing the sliding plate to move within the grooves. The first air pipe is located on the side of the second water tank and can deliver gas towards the second water tank. On the one hand, the gas delivery ensures the oxygen content of the environment inside the second water tank to ensure the activity of the sea crabs and the live target inside the second water tank. On the other hand, the gas delivery method can use airflow to push the sea crabs or the live target closer together, encouraging their activity, so as to facilitate data acquisition and recording.

[0010] According to one embodiment of the present invention, a second water tank is connected to a first water tank at one end. A frame is provided at the bottom of the first water tank. An inlet pipe and a water pump connected to the inlet pipe are installed inside the first water tank. The inlet pipe is connected to an external pipeline outside the first water tank, and its outlet is located inside the first water tank and faces the second water tank. Driven by the water pump, the inlet pipe in the first water tank introduces water through the external pipeline, with its outlet facing the second water tank, thus forming a directional water flow from the first water tank to the second water tank. This simulates the water flow environment of the natural habitat of marine crabs, encouraging the marine crabs and live targets to move with the water flow, increasing the probability of interaction. Simultaneously, the water circulation maintains the dynamic balance of the water in the second water tank, ensuring the stability of the testing environment and improving the realism and data reliability of attack behavior observation.

[0011] According to one embodiment of the present invention, a water collection tank is provided at the bottom of the end of the second water tank opposite to the first water tank, and the bottom of the second water tank has a drainage hole corresponding to the water collection tank. Water flowing from the first water tank to the second water tank can be discharged into the water collection tank through the drainage hole, achieving directional flow and timely discharge of water, preventing water stagnation in the second water tank. This also reduces the accumulation of impurities generated by biological activity, maintains water quality cleanliness, and the stable water flow circulation simulates a natural aquatic environment, making the observation of attack behavior more realistic and improving the reliability of test data.

[0012] According to one embodiment of the present invention, the upper part of the water collection tank is open and equipped with a filter screen. The filter screen intercepts impurities in the water discharged from the drain hole, preventing them from entering the water collection tank and causing blockage or pollution, while also preventing seawater crabs and live targets from accidentally falling through the drain hole.

[0013] A method for testing the attack capability of marine crabs based on live targets, and a device for testing the attack capability of marine crabs based on live targets, the method is as follows: marine crabs and live targets are placed in a second water tank, and a camera acquires image data of the interactive behavior of marine crabs and live targets.

[0014] This invention places a sea crab and a live target into a second water tank, providing them with an open space to move around. With the help of a camera in the observation component, which faces the second water tank and can move with the slide, it can accurately and comprehensively capture image data of their interaction and attack behavior.

[0015] Compared with existing technologies, the beneficial effects of the present invention are as follows: The present invention achieves comprehensive observation of different areas in the second tank through a movable observation component, overcoming the problem of loss of behavioral details caused by fixed shooting angles; it removes water impurities through a purging component, solving the problem of image blurring; it simulates the natural water flow environment with the help of a water circulation system and flow control components, while maintaining the oxygen content of the water and promoting biological interaction through an air pump and a first air pipe, solving the problems of poor environmental stability, insufficient biological activity and low interaction frequency of existing devices, and achieving accurate and realistic testing of the attack capabilities of seawater crabs. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the marine crab attack capability testing device based on a live target according to the present invention. Figure 2 This is a schematic diagram of the inlet pipe and water pump of the present invention; Figure 3 This is a schematic diagram of the second water tank and water collection tank of the present invention; Figure 4 This is a schematic diagram of the flow control component scheme of the present invention; Figure 5 This is a schematic diagram of the observation component scheme of the present invention; Figure 6 This is a schematic diagram of the purging component of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 10. First water tank; 11. Inlet pipe; 12. Water pump; 13. External pipe; 20. Flow control assembly; 21. First mounting base; 22. First limiting rod; 23. Second limiting rod; 24. Hydraulic cylinder; 25. Vibration motor; 26. First arc-shaped plate; 27. Inlet cylinder; 28. Spring; 30. Frame; 31. Sliding plate; 32. Air pump; 33. Mounting base plate; 331. Slot; 34. Second water tank; 35. First air pipe; 36. Water collection tank; 37. Drainage through hole; 38. Filter screen; 40. Observation component; 41. Slide plate; 42. Rolling component; 43. Purge component; 431. Housing; 432. Inlet sealing plate; 433. Outlet sealing plate; 434. Rotating block; 435. Insert plate; 436. Slide groove; 44. Camera; 45. Slide rail; 46. Support rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example 1: As shown in the attached figure Figure 1 - Appendix Figure 6 As shown, the marine crab attack capability testing device based on a live target includes a second water tank 34, which is positioned above the frame 30 and has a through-type upper part. An observation component 40 is mounted on the second water tank 34, including a camera 44 and a sliding plate 41 capable of moving the camera 44. The second water tank 34 of this invention is used to place marine crabs and live targets, while providing an open field of view for observation. The sliding plate 41 of the observation component 40 can move the camera 44, flexibly adjusting the position of the camera 44 to observe different areas within the second water tank 34, capturing details of the interaction and attack behavior between the marine crab and the target. The solution of this invention improves the completeness and accuracy of attack behavior recording.

[0022] The observation component 40 includes a rolling element 42 disposed below a sliding plate 41. A motor driving the rolling element 42 is located at the bottom of the sliding plate 41. A slide rail 45, cooperating with the rolling element 42, is located above the second water tank 34. The side of the slide rail 45 is connected to the frame 30 via a support rod 46. The rolling element 42 below the sliding plate 41 cooperates with the slide rail 45 above the second water tank 34. Driven by the motor at the bottom of the sliding plate 41, the camera 44 moves along the slide rail 45, thus collecting observation data from different areas within the second water tank 34. The slide rail 45 is connected to the frame 30 via the support rod 46. The support of the frame 30 enhances the structural stability of the slide rail 45, preventing wobbling during the movement of the rolling element 42 and ensuring the clarity of the images captured by the camera 44.

[0023] The image acquisition end of camera 44 is located at the bottom of slide plate 41, facing the second water tank 34. A blower 43 is positioned at the bottom of slide plate 41 relative to camera 44. With the image acquisition end of camera 44 located at the bottom of slide plate 41 and facing the second water tank 34, it can directly target the interior of the second water tank 34, accurately capturing the interaction and attack behavior of seawater crabs with live targets, ensuring the targeted and effective shooting angle. The blower 43, positioned at the bottom of slide plate 41 relative to camera 44, can specifically blow away the area in front of the image acquisition end of camera 44, reducing interference from impurities and air bubbles in the water, avoiding image blurring, and improving the clarity of the image data acquired by camera 44.

[0024] The purging component 43 includes a housing 431, which has a hollow internal structure. One end of the housing 431 has an inlet sealing plate 432, which is connected to an air pump 32 located on one side of the frame 30 via a pipe. The other end of the housing 431 has an outlet sealing plate 433, which has a through hole. The air supplied by the air pump 32 enters the housing 431 through the inlet sealing plate 432 and is then blown out through the through hole in the outlet sealing plate 433. Part of the airflow purges the area in front of the image acquisition end of the camera 44, removing impurities and air bubbles from the water to avoid obstructing the shooting field of view and ensuring the clarity of the images acquired by the camera 44. Part of the airflow acts on the water in the second water tank 34, which can slightly disturb the water flow in the second water tank 34. The disturbance can stimulate the activity instincts of the sea crab and the live target, causing them to move more frequently and increasing the probability of contact, thus making it easier to trigger attack behavior and improving the efficiency of acquiring effective interaction data in the test.

[0025] The housing 431 contains a circular rotating block 434. A groove 436 is formed around the side of the rotating block 434, and a sliding insert plate 435 is inserted into the groove 436. The distance between the rotating block 434 and the housing 431 prevents the insert plate 435 from disengaging from the groove 436. This cooperative structure between the circular rotating block 434 and the insert plate 435 within the housing 431 allows for airflow regulation. Specifically, when the rotating block 434 rotates, its side groove 436 causes the insert plate 435 to slide, altering the range and intensity of airflow through the through-hole of the outlet sealing plate 433. Simultaneously, the distance between the rotating block 434 and the housing 431 prevents the insert plate 435 from disengaging from the groove 436, ensuring structural stability.

[0026] A sliding plate 31 capable of horizontal sliding is provided between the second water tank 34 and the observation component 40. The sliding plate 31 is connected to the frame 30 via a mounting base 33, which has a first air pipe 35 connected to the air pump 32. The mounting base 33 includes two vertical plates, which are located outside the second water tank 34 and connected to the frame 30. The two vertical plates are connected by two short plates, which are located above the second water tank 34. The opposite surfaces of the vertical plates have grooves, allowing the sliding plate 31 to move within the grooves. The first air pipe 35 is located on the side of the second water tank 34 and can deliver gas towards the second water tank 34. On the one hand, the gas delivery ensures the oxygen content of the environment inside the second water tank to ensure the activity of the sea crabs and the live targets inside the second water tank. On the other hand, the gas delivery can use airflow to push the sea crabs or live targets closer together to encourage their activity, thus facilitating data acquisition and recording.

[0027] The second water tank 34 is connected to the first water tank 10 at one end. The bottom of the first water tank 10 is equipped with a frame 30. The first water tank 10 contains an inlet pipe 11 and a water pump 12 connected to the inlet pipe 11. The inlet pipe 11 is connected to an external pipeline 13 outside the first water tank 10. The outlet of the inlet pipe 11 is located inside the first water tank 10 and faces the second water tank 34. Driven by the water pump 12, the inlet pipe 11 in the first water tank 10 introduces water through the external pipeline 13, with its outlet facing the second water tank 34, forming a directional water flow from the first water tank 10 to the second water tank 34. This simulates the water flow environment of the natural habitat of marine crabs, encouraging the marine crabs and live targets to move with the water flow, increasing the probability of interaction. Simultaneously, the water circulation maintains the dynamic balance of the water in the second water tank 34, ensuring the stability of the testing environment and improving the realism of attack behavior observation and data reliability.

[0028] The bottom of the second water tank 34, away from the first water tank 10, is equipped with a water collection tank 36. The bottom of the second water tank 34 has a drainage hole 37 corresponding to the water collection tank 36. Water from the first water tank 10 flows into the second water tank 34 and can drain into the water collection tank 36 through the drainage hole 37, achieving directional water flow and timely discharge, preventing water stagnation in the second water tank 34. This also reduces the accumulation of impurities generated by biological activity, maintains water quality cleanliness, and the stable water circulation simulates a natural aquatic environment, making the observation of attack behavior more realistic and improving the reliability of test data.

[0029] The water collection tank 36 has an opening at the top and is equipped with a filter screen 38. The filter screen 38 intercepts impurities in the water discharged from the drain hole 37, preventing them from entering the water collection tank 36 and causing blockage or pollution. It also prevents seawater crabs and live targets from accidentally falling through the drain hole 37.

[0030] A method for testing the attack capability of marine crabs based on live targets, and a device for testing the attack capability of marine crabs based on live targets, the method is as follows: marine crabs and live targets are placed in a second water tank 34, and a camera 44 acquires image data of the interactive behavior of marine crabs and live targets.

[0031] This invention places a sea crab and a live target in a second water tank 34, providing them with an open space to move around. With the help of a camera 44 in the observation component 40, which faces the second water tank 34 and can move with the slide plate 41, it can accurately and comprehensively capture image data of the interaction and attack behavior of both crabs. Example 2: This embodiment is a further optimized version of Embodiment 1, as shown in the appendix. Figure 1 Appendix Figure 4As shown, a flow control component 20 is provided on the mounting base 33. Two short plates of the mounting base 33 are arranged in the direction of water flow inside the second water tank 34. A horizontally arranged slot 331 is opened on the short plate of the mounting base 33 near the first water tank 10. A vertically arranged first mounting base 21 is provided on one side of the short plate. A locking block that cooperates with the slot 331 is provided on one side of the first mounting base 21. The bottom of the first mounting base 21 is connected to the spaced arc-shaped first arc plates 26. The first arc plates 26 are connected by connecting rods. An inlet cylinder 27 is arranged at intervals between adjacent first arc plates 26. The orientation of the inlet cylinder 27 is consistent with the flow direction from the first water tank 10 to the second water tank 34. The inlet cylinder 27 is a through structure, passing through both ends. Optionally, a baffle is provided inside the inlet cylinder 27. Two short plates on the mounting base 33 are positioned along the water flow direction within the second water tank 34. The short plate closest to the first water tank 10 engages with the locking block of the first mounting base 21 via a slot 331, enabling stable installation and flexible position adjustment of the first mounting base 21. The arc-shaped first arc plate 26 at the bottom of the first mounting base 21 is connected by a connecting rod, which guides the water flow and reduces turbulence. The inlet cylinder 27 between adjacent first arc plates 26 is positioned along the water flow direction and is a through structure, guiding the water flow smoothly and directionally. Its built-in filter also intercepts impurities. This ensures water flow stability, simulates a natural water flow environment to promote the natural activity of seawater crabs and live targets, maintains water quality by filtering impurities, and facilitates adjustment of the installation position according to testing needs, improving the applicability of the device and the reliability of test data.

[0032] A vibration motor 25 is mounted on the first mounting base 21, and a spring 28 is provided between the first mounting base 21 and the mounting substrate 33. When the vibration motor 25 on the first mounting base 21 is working, it can drive the first mounting base 21 to vibrate. The spring 28 between the first mounting base 21 and the mounting substrate 33 can buffer and adjust the vibration amplitude, allowing the vibration to be transmitted more smoothly to the first arc-shaped plate 26 and the inlet cylinder 27 at the bottom. This allows the water to create regular fluctuations as it flows through the first arc-shaped plate 26 and the inlet cylinder 27, simulating the water flow disturbance in natural water bodies, stimulating the instinctive activity of the sea crabs and the live target in the second tank 34, and increasing the frequency of their interaction. At the same time, the elasticity of the spring 28 prevents excessive vibration from interfering with the normal behavior of the organisms.

[0033] The first mounting base 21 has a slot at its upper end, and a first limiting rod 22 that can swing is provided in the slot. The end of the first limiting rod 22 has a bent part. A second limiting rod 23 is connected to the bottom of the first limiting rod 22, and a vertically arranged hydraulic cylinder 24 is connected to the bottom of the second limiting rod 23.

[0034] When the hydraulic cylinder 24 extends or retracts, the second limiting rod 23 drives the first limiting rod 22 to swing within the slot, adjusting the position and angle of the first mounting base 21, thereby changing the water flow guidance posture of the first arc-shaped plate 26 and the inlet cylinder 27. This meets the testing requirements for different water flow intensities and directions.

[0035] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention.

[0037] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A testing device for the attack capability of marine crabs based on live targets, comprising a second water tank (34), wherein the second water tank (34) is disposed above the frame (30) and the upper part of the second water tank (34) is through-connected, characterized in that, The second water tank (34) is provided with an observation component (40), which includes a camera (44) and a slide plate (41) that can move the camera (44). The image acquisition end of the camera (44) is located at the bottom of the slide plate (41) and faces the second water tank (34). A purge component (43) is located at the bottom of the slide plate (41) relative to the camera (44). The purge component (43) includes a housing (431), which is hollow inside. One end of the housing has an inlet sealing plate (432), which is connected to an air pump (32) located on one side of the frame (30) via a pipe. The other end of the housing (431) has an outlet sealing plate (433). A through hole is provided on the plate (433); a circular rotating block (434) is built into the housing (431), and a sliding groove (436) is provided around the side of the rotating block (434), and a sliding plate (435) is inserted into the sliding groove (436); a sliding plate (31) that can slide horizontally is provided between the second water tank (34) and the observation component (40), and the sliding plate (31) is connected to the frame (30) through the mounting base plate (33), and a first air pipe (35) connected to the air pump (32) is provided on the mounting base plate (33).

2. The marine crab attack capability testing device based on a live target according to claim 1, characterized in that, The observation component (40) has a rolling element (42) located below the slide plate (41). The bottom of the slide plate (41) is provided with a motor that drives the rolling element (42) to move. Above the second water tank (34) is a slide rail (45) that cooperates with the rolling element (42). The slide rail (45) is connected to the frame (30) on the side by a support rod (46).

3. The marine crab attack capability testing device based on a live target according to claim 1, characterized in that, The second water tank (34) is connected to the first water tank (10) at one end. The first water tank (10) is provided with a frame (30) at the bottom. The first water tank (10) has an inlet pipe (11) and a water pump (12) connected to the inlet pipe (11). The inlet pipe (11) is connected to an external pipe (13) outside the first water tank (10). The outlet of the inlet pipe (11) is located inside the first water tank (10) and faces the second water tank (34).

4. The marine crab attack capability testing device based on a live target according to claim 3, characterized in that, The bottom of the second water tank (34) away from the first water tank (10) is provided with a water collection tank (36), and the bottom of the second water tank (34) has a drainage through hole (37) corresponding to the water collection tank (36).

5. The marine crab attack capability testing device based on a live target according to claim 4, characterized in that, The water collection tank (36) has an opening at the top and is equipped with a filter screen (38).

6. A method for testing the attack capability of marine crabs based on live targets, characterized in that, The method of the sea crab attack capability testing device based on a live target according to any one of claims 1-5 is as follows: the sea crab and the live target are placed in the second water tank (34), and the camera (44) acquires the interactive behavior image data of the sea crab and the live target.

Images