Test device for researching spawning habits of eel parents

Abstract

The utility model discloses a test device for researching the egg laying habit of eel parents. The test device comprises a test barrel, a light shield, a temperature controller, a rotary camera, a hidden nest, a directional camera and a control display screen, the test barrel is a light-proof barrel with an opening in the upper part; the light shield is arranged at the upper opening of the test barrel; the temperature controller is arranged in the test barrel; the rotary camera is an underwater camera which has a dark night vision function and can rotate by 360 degrees, and is detachably fixed on the inner side wall of the test barrel; the hidden nest is a lightproof hollow circular tube and is arranged at the bottom of the inner side of the test barrel; the directional camera has a dark night vision function and is arranged at the opening of the hidden nest; the control display screen is used for intuitively presenting eel parent spawning habit information shot by the rotary camera and the directional camera, and carrying out real-time regulation and display by controlling the shooting view angles of different cameras in a split-screen manner.

Description

Technical Field

[0001] The utility model belongs to the field of fish spawning habit research, and relates to an experimental device for studying the spawning habit of eel parents. Background Art

[0002] Artificial reproduction of eels is a global problem, and no breakthrough has been achieved, which seriously restricts the development of eel farming. The key problems include the cultivation of high-quality parents and the acquisition of high-quality eggs. At present, in artificial reproduction, many studies usually use traditional artificial insemination methods, which are to obtain eggs by squeezing the abdomen of females and fertilize them with separately prepared sperm. However, the eggs obtained by this method have very different fertilization rates and hatching rates, and are prone to low survival rates and high deformity rates. Studies have shown that the quality of eggs and larvae obtained by spontaneous spawning is relatively high, and spontaneous spawning has become one of the solutions to obtain high-quality eggs and larvae. By studying the spawning habits of eel parents, we can understand important information such as the movement behavior, concealment behavior, male-female interaction behavior and environmental requirements of eel parents after induced stimulation, and provide guidance for the spawning habitat requirements of eel parents, the reproductive behavior of male and female parents, and the acquisition of high-quality eggs. At present, although preliminary observations have been made in indoor experimental pools, and the reproductive behavior of male and female eels has occasionally been recorded, there is a lack of specialized spawning behavior research equipment. The observation of the spawning behavior of eel parents mainly relies on regular inspections by experimenters, and there is a lack of comprehensive and systematic spawning habit observation and recording equipment, so the collection of spawning habit data is not comprehensive and systematic. Utility Model Content

[0003] The utility model aims at the shortcomings of the current research device on the spawning habits of eel parents in production and data collection, and provides a test device for studying the spawning habits of eel parents, which can solve at least one of the above problems.

[0004] The technical scheme of the utility model is: an experimental device for studying the spawning habits of eel parents, comprising an experimental barrel, a light shield, a temperature controller, a rotating camera, a concealed nest, a directional camera and a control display screen;

[0005] The test barrel is a light-proof barrel with an opening at the top;

[0006] There are multiple light shields with different light transmittances, and one of them can be selected to be set at the upper opening of the test barrel; according to the test needs, light shields with different light transmittances can be configured to adjust the brightness in the test barrel, further providing a suitable environment for the spawning of eel parents.

[0007] The temperature controller is arranged in the test barrel and connected to the control display screen through a line. The real-time temperature in the test barrel is displayed through the control display screen, and the set temperature of the thermostat is controlled and adjusted. The temperature controller adopts an intelligent digital display temperature controller, which can control the water temperature through temperature setting and automatic adjustment, and is used to screen the optimal temperature requirements for eel parents to spawn.

[0008] The rotating camera is an underwater camera with a lightless night vision function and capable of 360-degree rotation, and is detachably fixed on the inner wall of the test barrel; and the rotating camera is connected to the control display screen through a line, and can be remotely controlled by the control display screen to achieve 360-degree rotation recording; to obtain a full range of shooting vision, and at the same time has a lightless night vision function, which can realize recording at all times of the day and night, and fully record the swimming, chasing and other spawning-related habits of the eel parents after induction.

[0009] The hidden nest is a light-proof hollow circular tube, which is arranged at the bottom of the inner side of the test barrel;

[0010] The directional camera has a lightless night vision function and is arranged at the opening of the hidden nest. The probe direction of the directional camera faces the hollow round tube of the hidden nest, which can further provide a more hidden and comfortable spawning place for the eel parents. The directional camera is connected to the control display screen through a line;

[0011] The control display screen is used to intuitively present the spawning habit information of the eel parents captured by the rotating camera and the directional camera, and to control the shooting angles of different cameras through split screens for real-time regulation and display.

[0012] Furthermore, an adapter is included, and the adapter is reserved with USB and Type-C interfaces for connecting to the rotating camera and the directional camera. Different types of adapters are configured according to the interface type of the connected video recording device, so that the connection of different video recording devices can be realized.

[0013] Furthermore, it also includes a memory, which is connected to the adapter and the control display screen respectively, and the spawning habit information of the eel parents photographed by the rotating camera and the directional camera is transferred through the adapter and stored in the memory, and then transmitted to the control display screen for display through the memory.

[0014] Furthermore, it also includes a workbench, on which the adapter, memory and control display screen are placed, so that the experimenter can observe, process and analyze the obtained image data through the display.

[0015] Furthermore, the rotating camera is detachably fixed to the inner wall of the test barrel by a suction cup. The suction cup is a round cap-shaped suction cup, which can be firmly adsorbed on the inner wall of the barrel by negative pressure, and its position can be arbitrarily adjusted at different depths in the barrel according to experimental needs to obtain the best recording angle.

[0016] Furthermore, the test barrel is a glass fiber reinforced plastic barrel, which is the main test area. The outer periphery of the barrel is light-proof, which can provide a stable environment for the spawning of eel parents and avoid external interference.

[0017] The beneficial effects of the utility model are:

[0018] 1. The main body of the test device is a fiberglass barrel, which is easy to obtain and manufacture, and the barrel is opaque all around, which can reduce the interference of external light on the eel parent;

[0019] 2. The light shield can be made of shading materials with different light transmittances according to the needs, providing suitable lighting and concealed environment for eel parents to spawn;

[0020] 3. The hidden nest is a light-proof cylindrical hollow tube, which can provide further hidden space for the eel parent at the bottom of the water according to its spawning needs;

[0021] 4. The directional camera has a lightless night vision function and is installed at one end of the hollow round tube of the hidden nest. It can clearly obtain the reproductive behavior of the male and female eel parents in the round tube through directional shooting;

[0022] 5. The rotating camera is attached to the inner wall of the drum through a suction cup, which makes it easy to move to any position on the inner wall of the drum. It can also be rotated and controlled by a remote control to achieve all-round shooting and recording;

[0023] 6. The temperature controller is an intelligent digital temperature controller, which can set the temperature independently according to the experimental requirements to achieve automatic control and adjustment of the temperature;

[0024] 7. The adapter can be configured with different interfaces according to the needs of connecting different camera systems, and the information obtained by different camera systems can be uniformly transferred to the memory for storage.

[0025] 8. The screen can adjust and control the recording angle, and can perform split-screen display and real-time observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of the experimental device for studying the spawning habits of eel parents.

[0027] In the figure: 1 test barrel, 2 light shield, 3 temperature controller, 4 suction cup, 5 rotating camera, 6 hidden nest, 7 directional camera, 8 adapter, 9 line, 10 memory, 11 screen, 12 workbench. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] like Figure 1 The main components of the experimental device shown in the figure for studying the spawning habits of eel parents are composed of an experimental barrel 1, a light shield 2, a temperature controller 3, a suction cup 4, a rotating camera 5, a hidden nest 6, a directional camera 7, an adapter 8, a line 9, a memory 10, a screen 11, a workbench 12, etc.

[0030] The test barrel 1 is a fiberglass barrel with a diameter of 100 cm and a height of 120 cm. It is the main area for studying the spawning habits of eel parents. It is equipped with important equipment such as a temperature controller 3, a hidden nest 6, a rotating camera 5 and a directional camera 7. The upper mouth can be covered with a light shield 2 with different light transmittances according to the test needs to adjust the internal brightness and darkness to provide suitable lighting conditions for the eel parents.

[0031] The light shield 2 is composed of a circular light shielding material with a diameter of 120 cm, and a light shielding material with a suitable light transmittance can be selected according to experimental needs.

[0032] The temperature controller 3 is an intelligent digital temperature controller, which is used to adjust the temperature of the water in the test barrel 1, and realize the independent setting and automatic adjustment of the temperature during the test.

[0033] The suction cup 4 is a round cap-shaped suction cup with a diameter of 4 cm. The bottom is adsorbed on the inner wall of the test barrel 1, and the end is fixed on the side of the rotating camera 5. It can be easily moved to different positions on the inner wall of the test barrel 1 through adsorption and desorption of the suction cup, providing the best shooting angle for the rotating camera.

[0034] The probe of the rotating camera 5 can be rotated 360 degrees by remote control to obtain an all-round shooting field of view. It also has a lightless night vision function, which can realize the recording of the water body where the eel parents are located for 100 days and all night long.

[0035] The hidden nest 6 is a PVC hollow circular tube with a diameter of 15 cm, the length of which can be customized according to the test requirements. It is arranged at the bottom of the test barrel 1 to provide a hidden spawning place for the induced eel parents.

[0036] The directional camera 7 has a lightless night vision function. Its probe is located at the end, facing the opening of the hidden nest 6, and can record the reproductive habits of the male and female eel parents in the hidden nest 6.

[0037] The adapter 8 is provided with different interfaces such as USB and Type-C for connecting to different video recording devices.

[0038] Line 9 is used for connecting recording and storage systems such as rotating camera 5, directional camera 7, adapter 8, memory 10 and screen 11.

[0039] The memory 10 is used to record and store image information such as images and videos acquired by the rotating camera 5 and the directional camera 7 .

[0040] The screen 11 is used to record in real time and visually display the reproductive behavior information of the eel parents, such as swimming and chasing, recorded by the camera. It can also control and present the shooting content and real-time images of different cameras through split screen to achieve all-round shooting and regulation.

[0041] The workbench 12 is used to place devices such as the adapter 8, the memory 10 and the screen 11, and allows the experimenter to observe, process and analyze the obtained image data through the display.

[0042] Directions:

[0043] 1. Experiment of different temperature control: During the spawning experiment, different temperatures are obtained by adjusting the thermostat 3, and the spawning behavior of the eel parents is observed under different temperature control;

[0044] 2 Experiments under different shading conditions: By replacing shading covers 2 with different light transmittances, the spawning habits of eel parents under different light intensities were observed;

[0045] 3 Experiments on different concealed conditions: By comparing the distribution area, swimming behavior, and interaction behavior of the eel parents inside and outside the concealed nest 6, the spawning habits under different concealed conditions were studied;

[0046] 4 Comprehensive regulation experiment: During the induced spawning process of eel parents, the spawning habits of eel parents under the influence of different habitat factors are observed through the combined regulation of different conditions such as temperature, light and concealed environment.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An experimental device for studying the spawning habits of eel parents, characterized in that: It includes a test barrel (1), a light shield (2), a temperature controller (3), a rotating camera (5), a hidden nest (6), a directional camera (7) and a control display screen (11); The test barrel (1) is a light-proof barrel with an upper opening; There are a plurality of light shields (2), and the light transmittances of the plurality of light shields (2) are different, and one of them can be selected and arranged at the upper opening of the test barrel (1); The temperature controller (3) is arranged in the test barrel (1) and is connected to the control display screen (11) through a line, and the real-time temperature in the test barrel (1) is displayed through the control display screen (11) and the set temperature of the temperature controller (3) is controlled and adjusted; The rotating camera (5) is an underwater camera with a lightless night vision function and capable of 360-degree rotation, and is detachably fixed to the inner wall of the test barrel (1); and the rotating camera (5) is connected to the control display screen (11) via a line, and the rotating camera (5) can be remotely controlled via the control display screen (11) to achieve 360-degree rotation recording; The hidden nest (6) is a light-proof hollow circular tube, which is arranged at the inner bottom of the test barrel (1); The directional camera (7) has a lightless night vision function and is arranged at the opening of the hidden nest (6). The probe direction of the directional camera (7) faces the hollow circular tube of the hidden nest (6); and the directional camera (7) is connected to the control display screen (11) via a line; The control display screen (11) is used to intuitively present the spawning habit information of the eel parents captured by the rotating camera (5) and the directional camera (7), and to control the shooting angles of different cameras through split screens for real-time regulation and display.

2. The experimental device for studying the spawning habits of eel parents according to claim 1, characterized in that: It also includes an adapter (8), which has a USB and Type-C interface reserved for connecting to the rotating camera (5) and the directional camera (7).

3. The experimental device for studying the spawning habits of eel parents according to claim 2, characterized in that: The device also comprises a memory (10), wherein the memory (10) is respectively connected to the adapter (8) and the control display screen (11), and the spawning habit information of the eel parent photographed by the rotating camera (5) and the directional camera (7) is transferred through the adapter (8) and stored in the memory (10), and then transmitted to the control display screen (11) for display through the memory (10).

4. The experimental device for studying the spawning habits of eel parents according to claim 3, characterized in that: It also comprises a workbench (12), on which the adapter (8), the memory (10) and the control display screen (11) are placed.

5. The experimental device for studying the spawning habits of eel parents according to claim 1, characterized in that: The rotating camera (5) is detachably fixed to the inner wall of the test barrel (1) via a suction cup (4).

6. The experimental device for studying the spawning habits of eel parents according to claim 1, characterized in that: The test barrel (1) is a glass fiber reinforced plastic barrel.

Images