Fish measurable character measuring device

Abstract

The utility model discloses a fish measurable character measuring device, and belongs to the technical field of fish morphology. The device comprises a measuring assembly, an adjustable buoy, a fish guiding assembly and an anchoring assembly, the measuring assembly is provided with an inlet and an outlet, and a shooting piece and a scale piece opposite to the shooting piece are arranged in the measuring assembly; the adjustable buoy is arranged on the top surface of the measuring assembly; the fish guiding assembly is fixed at an inlet and an outlet of the measuring assembly; the fish guiding assembly is provided with a first end and a second end which are opposite. The diameter of the second end is larger than that of the first end. The first end is connected with the inlet and the outlet, so that a single fish tail can enter the measuring assembly. According to the utility model, the fish guide channel with the two-way opening is arranged to randomly sample fishes in a water body, and data of fish population and community measurable character structures are acquired, so that a basis is provided for subsequent statistics.

Description

Technical Field

[0001] This utility model relates to the field of fish morphology technology, specifically to a device for measuring measurable traits of fish. Background Technology

[0002] Measurable traits of fish are one of the key biological indicators in aquaculture and fisheries ecology. They can be used to reflect the growth status and population structure of fish under different environmental conditions and have very important application value. Monitoring the measurable trait structure of fish populations and communities is the basis for aquaculture assessment and fisheries resource management.

[0003] Traditional tools for measuring measurable traits in fish include plastic and stainless steel rulers for small fish, and plastic and metal measuring tapes for large fish. However, these tools require the fish to be fixed in place before measurement, making them inaccurate for fish moving underwater. Furthermore, traditional methods cannot allow for random sampling of fish in the water, thus lacking statistical significance. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a fish measurable trait measuring device that can be installed underwater to randomly measure the measurable traits of fish in motion.

[0005] This utility model protects a device for measuring measurable traits of fish, including a measuring component, an adjustable float, a fish guiding component, and an anchoring component;

[0006] The measuring component has an inlet and an outlet, and the measuring component contains an imaging element and a scale element opposite to the imaging element;

[0007] The adjustable float is disposed on the top surface of the measuring component, and the measuring component can be made to float or suspend in the water by means of the adjustable float;

[0008] The fish guiding component is fixed at the inlet and outlet of the measuring component; the fish guiding component has a first end and a second end opposite to each other, the diameter of the second end being larger than the diameter of the first end; the first end is connected to the inlet and the outlet, allowing fish to enter the measuring component one at a time;

[0009] The anchoring component is fixedly connected to the bottom surface of the measuring component.

[0010] Furthermore, the fish-guiding assembly includes a fish-guiding bracket and a fish-guiding surface, the fish-guiding surface being disposed on the fish-guiding bracket between the first end and the second end to form a channel.

[0011] Furthermore, the measuring component includes an inner shell and an outer shell sleeved on the outside of the inner shell; cameras are provided on the inner side of the top wall and the inner side of one side wall of the inner shell, and scale lines are provided on the inner side of the bottom wall and the inner side of the other side wall of the inner shell.

[0012] The capturing device is the camera;

[0013] The scale element is the scale line.

[0014] Furthermore, supplementary lights are provided on the inner wall of the inner shell to increase the brightness inside the inner shell. Furthermore, the positioning components are fixed at the four endpoints of the bottom surface of the measuring component.

[0015] Furthermore, the positioning component includes a flexible fixing rope and a positioning anchor; the positioning anchor is connected to the measuring component via the flexible fixing rope, and the positioning anchor is anchored to the bottom of the water.

[0016] Furthermore, the fish-guiding surface is a fishing net; the fish-guiding bracket is a fishing net support frame.

[0017] Furthermore, the diagonal size of the mesh opening of the fishing net is not less than 1.4cm.

[0018] Furthermore, the width and height of the inner shell are not less than 50cm.

[0019] Beneficial effects: This utility model allows for random sampling of fish in water by setting up a bidirectional open fish guide channel, collecting data on the measurable traits and structure of fish populations and communities, providing a foundation for subsequent statistics; by limiting the depth of data collection through floats and positioning anchors, relevant data can be collected in a targeted manner, increasing the richness of data collection and improving the reliability of the data. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is a schematic diagram of the overall structure of the fish measurable trait measuring device in one embodiment of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of a fish measurable trait measuring device in one embodiment of the present invention;

[0024] In the diagram: 1. Measuring component; 11. Outer shell; 12. Inner shell; 13. Camera; 14. Scale lines; 15. Fill light;

[0025] 2. Adjustable float;

[0026] 3. Fish guiding components; 31. Fishing net support frame; 32. Fishing net;

[0027] 4. Anchoring components; 41. Flexible fixing rope; 42. Positioning anchor. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0029] refer to Figures 1-2 This utility model protects a device for measuring measurable traits of fish, characterized in that it includes a measuring component 1, an adjustable float 2, a fish guiding component 3, and an anchoring component 4; the measuring component 1 is provided with an inlet and an outlet, and the measuring component 1 is provided with an imaging element and a scale element opposite to the imaging element;

[0030] An adjustable float 2 is set on the top surface of the measuring component 1, and the measuring component 1 can be made to float or suspend in the water by adjusting the float 2;

[0031] Fish guiding component 3 is fixed at the inlet and outlet of measuring component 1; fish guiding component 3 has a first end and a second end, the diameter of the second end is larger than the diameter of the first end; the first end is connected to the inlet and outlet, so that fish can enter the measuring component 1 one by one;

[0032] Anchoring component 4 is fixedly connected to the bottom surface of measuring component 1.

[0033] This invention uses a fish-guiding component 3 to randomly guide fish from the water into the measuring component 1. By setting corresponding imaging and scale components, the length of the fish can be measured more accurately after entering the measuring component 1. An adjustable float 2 and an anchoring component 4 confine the measuring component 1 to a fixed depth in the water.

[0034] refer to Figure 1 and Figure 2 In one specific embodiment, the fish guiding component 3 includes a fish guiding bracket and a fish guiding surface, the fish guiding surface being disposed on the fish guiding bracket between the first end and the second end to form a channel. In this embodiment, the fish guiding component 3 has a trapezoidal cross-section. It can guide fish to the entrance position of the measuring component 1.

[0035] refer to Figure 2 In one specific embodiment, the measuring component 1 includes an inner shell 12 and an outer shell 11 fitted over the outer side of the inner shell 12. Cameras 13 are provided on the inner side of the top wall and one inner side wall of the inner shell 12, and scale lines 14 are provided on the inner side of the bottom wall and the inner side wall of the inner shell 12. The imaging element is the camera 13; the scale element is the scale line 14. At least two cameras 13 are located on the top wall of the inner shell 12 to prevent incomplete imaging of fish that are too long. The outer side of the cameras 13 is waterproofed.

[0036] In this embodiment, cameras 13 are set in two vertical directions, which can more accurately measure the measurable characteristics of the fish and prevent the fish from bending in the horizontal direction, thus affecting the accuracy of the measurement.

[0037] refer to Figure 2 In one specific embodiment, a supplementary light 15 is provided on the inner wall of the inner shell 12 to increase the brightness inside the inner shell 12. The supplementary light 16 is located at the connection between the side wall and the bottom wall of the inner shell 12, which facilitates the operation of the camera 13 and makes the pictures clearer.

[0038] refer to Figure 1 In one specific embodiment, the positioning component 4 is fixed at the four ends of the bottom surface of the measuring component 1. Under the upward buoyancy of the adjustable float 2, it can effectively stabilize the attitude of the device and limit the position of the device in the water.

[0039] refer to Figure 2 The positioning component 4 includes a flexible fixing rope 41 and a positioning anchor 42. The positioning anchor 42 is connected to the measuring component 1 via the flexible fixing rope 41 and is anchored to the bottom of the water. The positioning anchor 42 can be anchored to reefs or silt at the bottom of the water body. The flexible fixing rope 41 can buffer the impact of water flow or waves on the device when the water flow or waves are too large, ensuring the stable operation of the device in the water body.

[0040] refer to Figure 2 In one specific embodiment, the fish-guiding surface is a fishing net 32; the fish-guiding support is a fishing net support frame 31. The fishing net 32, while ensuring fish guidance, also has good fluid permeability, reducing the device's resistance in water and preventing damage or loss. The fishing net support frame 31 is an aluminum tube support, which reduces the device's weight while providing good rigidity and corrosion resistance, allowing it to operate underwater for extended periods.

[0041] refer to Figure 2 In one specific embodiment, the diagonal size of the mesh opening of the fishing net 32 ​​is not less than 1.4cm. Using a fishing net with a diagonal mesh opening size of 1.4cm here effectively distinguishes between fry and adult fish, preventing a large amount of fry data from interfering with statistical analysis.

[0042] refer to Figure 2 In one specific embodiment, the width and height of the inner shell 12 are not less than 50cm. Here, the width and height of the inner shell 12 are chosen to be 60cm. Individuals of abnormal size may appear in the water. The 60cm passage can effectively ensure the passage of fish of various sizes in the water and prevent abnormal individuals from getting stuck in the main device.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fish quantifiable trait measuring device, characterized by, The measuring assembly (1), the adjustable float (2), the fish guiding assembly (3) and the anchoring assembly (4) are included. The measuring assembly (1) is provided with an inlet and an outlet, and is provided with a camera shooting part and a scale part opposite to the camera shooting part. The adjustable float (2) is arranged on the top surface of the measuring assembly (1), and the measuring assembly (1) can float or suspend in water through the adjustable float (2). The fish guiding assembly (3) is fixed at the inlet and the outlet of the measuring assembly (1), and has opposite first and second ends, the diameter of the second end is larger than that of the first end, and the first end is connected with the inlet and the outlet so that fish can enter the measuring assembly (1) with a single tail. The anchoring assembly (4) is fixedly connected to the bottom surface of the measuring assembly (1).

2. The fish quantifiable trait measurement device of claim 1, wherein, The fish guiding assembly (3) includes a fish guiding support and a fish guiding surface, and the fish guiding surface is arranged on the fish guiding support between the first and second ends to form a channel.

3. The fish quantifiable trait measurement device of claim 1, wherein, The measuring assembly (1) includes an inner shell (12) and an outer shell (11) sleeved outside the inner shell (12), the inner wall of the top wall and one side wall of the inner shell (12) are provided with a camera (13), and the inner wall of the bottom wall and the other side wall of the inner shell (12) are provided with a scale line (14). The camera shooting part is the camera (13). The scale part is the scale line (14).

4. The fish quantifiable trait measurement device of claim 3, wherein, The inner wall of the inner shell (12) is provided with a light supplementing lamp (15) to increase the brightness in the inner shell (12).

5. The fish quantifiable trait measurement device of claim 1, wherein, The anchoring assembly (4) is fixed at four end points of the bottom surface of the measuring assembly (1).

6. The fish quantifiable trait measurement device of claim 5, wherein, The anchoring assembly (4) includes a flexible fixing rope (41) and a positioning anchor (42), the positioning anchor (42) is connected with the measuring assembly (1) through the flexible fixing rope (41), and the positioning anchor (42) is anchored at the bottom of water.

7. The fish quantifiable trait measurement device of claim 2, wherein, The fish guiding surface is a fishing net (32), and the fish guiding support is a fishing net support (31).

8. The fish quantifiable trait measurement device of claim 7, wherein, The diagonal line size of the mesh of the fishing net (32) is not less than 1.4 cm.

9. The fish quantifiable trait measurement device of claim 3, wherein, The width and height of the inner shell (12) are not less than 50 cm.

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