Ampullaria gigas trapping device

Abstract

The utility model relates to the field of freshwater snail capturing, in particular to a pomacea canaliculata trapping device. The device comprises a water-permeable basket body with a top cover, and one or more side walls of the basket body are provided with oval funnel channels or round funnel channels. According to the device, LED lamp luring commonly used in previous food luring tests is changed, holes are formed in the side face of the basket body, natural water flow is utilized to enable smell of luring food to be transmitted to water, and the ampullaria gigas is luring into the basket body; height differences exist between the elliptical holes and the round holes and the bottom of the basket body, so that the pomacea canaliculata cannot escape; the pomacea canaliculata gathered through food attraction can be conveniently treated in a centralized manner; according to the device, the attractant can be taken out and added at any time in the test process, the problem that the attractant effect in the later test period is reduced due to degradation of the attractant is solved, the device is simple in manufacturing method, materials are easy to obtain, cost is low, pesticide use is avoided, and the device is economical, practical and environmentally friendly.

Description

Technical Field

[0001] The utility model relates to the field of freshwater snail capture, in particular to a device for trapping golden apple snails. Background Art

[0002] The golden apple snail, also known as the giant bottle snail, Amazon bottle snail, apple snail, and golden apple snail, belongs to the phylum Mollusca, class Gastropoda, order Mesogastropoda, family Phylidae, and genus Phylidae. Golden apple snails are dioecious and generally reach sexual maturity at three months. Their egg masses contain 200-500 eggs. The invasive golden apple snail has a varied diet, including cabbage, duckweed, rice, wild rice stem, fish, and shrimp. It nibbles on cash crops, posing a threat to agricultural production. Its excrement can affect the aquatic environment, causing eutrophication and limiting the survival of aquatic animals, leading to their extinction in severe cases. This leads to a decrease in biodiversity and ecological balance in the areas where it invades. The golden apple snail is highly invasive due to its varied diet, rapid growth, strong reproductive capacity, strong resistance to adversity, and adaptability to a wide range of ecological conditions.

[0003] Current methods for controlling golden apple snails include mechanical agricultural control, biological control, and chemical control. Examples include installing physical barriers like iron mesh in farmland, implementing crop rotation, and mechanized farming. Biological control primarily involves using animals that prey on golden apple snails, such as fish, ducks, and frogs. Chemical control primarily involves the use of snailicides, such as metaldehyde and snailicide. Agricultural and biological control are relatively time-consuming and labor-intensive, and the use of pesticides can pollute the environment, damage water bodies, and lead to drug resistance and non-target toxicity. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a device for trapping golden apple snails.

[0005] According to the golden apple snail trapping device of the present invention, the device comprises a water-permeable basket with a top cover, and one or more side walls of the basket are provided with an elliptical funnel channel or a circular funnel channel.

[0006] According to the golden apple snail trapping device of the present invention, the basket is a hexahedral container with a certain slope.

[0007] According to the golden apple snail trapping device of the present invention, the major axis of the elliptical hole of the elliptical funnel channel is 60 mm, which facilitates larger snails to enter the basket.

[0008] According to the golden apple snail trapping device of the present invention, the short axis of the elliptical hole of the elliptical funnel channel is 40 mm, which facilitates larger snails to enter the basket.

[0009] According to the golden apple snail trapping device of the present invention, the diameter of the circular hole of the circular funnel channel is 30 mm, which facilitates more snails to enter the basket and prevents large snails from escaping.

[0010] According to the apple snail trapping device of the present invention, the lower edges of the elliptical hole and the circular hole have a height difference of 30 mm with the bottom of the basket, and the center of the elliptical hole and the circular hole are 50 mm and 45 mm away from the bottom of the basket respectively. The height difference prevents the apple snail from escaping.

[0011] According to the apple snail trapping device of the present invention, the elliptical hole or the circular funnel channel is cut into strips, and deformation space is reserved so that the aperture is expanded when the snail enters, and the funnel aperture is reduced when the snail escapes, thereby preventing the apple snail in the basket from escaping.

[0012] Compared with the existing technology, the advantages of the present invention are that, in view of the migratory habits of the golden apple snails, the device can be placed in the corner of the field for use; the LED light lure commonly used in previous feeding luring experiments is changed, and a hole is opened on the side of the basket, and the natural water flow is used to transmit the smell of the attractant food into the water, thereby luring the golden apple snails into the basket; the elliptical hole and the round hole have a height difference with the bottom of the basket, so that the golden apple snails cannot escape; it is convenient for centralized processing of the golden apple snails gathered by the food lure; the device can take out and add attractant food at any time during the test, avoiding the problem of reduced attractant effect in the later stage of the test due to degradation of the attractant food, and the device is simple to manufacture, the materials are easily available, the cost is low, and the use of pesticides is avoided, so it is economical and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the golden apple snail trapping device of the present invention;

[0014] Figure 2 This is a top view of the golden apple snail trapping device of the present invention;

[0015] Figure 3 It is a bottom view of the golden apple snail trapping device of the present invention.

[0016] Reference numerals:

[0017] A: Basket; B: Oval funnel channel; C: Circular funnel channel DETAILED DESCRIPTION

[0018] The technical solution of the present application is described in detail below with reference to specific embodiments and drawings.

[0019] like Figure 1 、 Figure 2 and Figure 3As shown, the golden apple snail trapping device according to the present invention includes a plastic basket A with a lid and sieve holes distributed on the side walls for water to pass through. The side walls of the basket are provided with an elliptical funnel channel B and a circular funnel channel C.

[0020] The shape of the housing A can be set as needed, and is preferably a rectangular container with a certain slope.

[0021] The diameters of the elliptical funnel channel B and the circular funnel channel C can be set as needed. The elliptical and circular channels can ensure that the golden apple snails can pass through smoothly.

[0022] When in use, the bait is placed in the basket, and the entire device is placed in a corner of a rice field. The number of captured golden apple snails is observed and recorded every 12 hours. The above operation is repeated 3 times, and the average value of each test is taken.

[0023] Field apple snail capture effect test: The device was placed in a rice field, and observations were recorded every 12 hours. It was found that the number of apple snails captured by the device was 15 or more, proving that the device had a good capture effect and was suitable for the field of apple snail capture.

[0024] Taking into account the migratory habits of golden apple snails, this device can be placed in the corners of fields. Instead of using LED lights to attract snails, which are commonly used in previous feeding trials, holes are cut in the side of the basket, allowing the natural flow of water to transmit the smell of the attractant food into the water, luring the snails into the basket. The oval and round holes are positioned at a certain height difference from the bottom of the basket, preventing the snails from escaping. The device allows for the removal and addition of attractant food at any time during the experiment, avoiding problems such as reduced attractant effectiveness later in the experiment due to degradation of the attractant food. After capture, the snails can be centrally processed, saving time and effort. Furthermore, the device is simple to manufacture, low-cost, and avoids the use of pesticides, making it economical and environmentally friendly. It is a simple and effective device for capturing golden apple snails.

[0025] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of this application in detail. It should be understood that the above description is only a specific implementation method of this application and is not intended to limit the scope of protection of this application.

Claims

1. A device for trapping golden apple snails, characterized in that: The device comprises a water-permeable basket with a top cover, wherein one or more side walls of the basket are provided with an elliptical funnel channel or a circular funnel channel, wherein: The oval funnel channel or the circular funnel channel is in a strip shape; The major axis of the elliptical hole of the elliptical funnel channel is 60 mm, and the minor axis of the elliptical hole of the elliptical funnel channel is 40 mm; The circular hole diameter of the circular funnel channel is 30 mm; The lower edge of the elliptical hole of the elliptical funnel channel or the circular hole of the circular funnel channel is 30 mm away from the bottom of the basket, the center of the elliptical hole of the elliptical funnel channel is 50 mm away from the bottom of the basket, or the center of the circular hole of the circular funnel channel is 45 mm away from the bottom of the basket.

2. The device for trapping golden apple snails according to claim 1, characterized in that: The basket is a hexahedral container with a sloped bottom surface.

3. The device for trapping golden apple snails according to claim 2, wherein: The housing is a rectangular container.

4. The device for trapping golden apple snails according to claim 1, wherein: The side wall of the basket is distributed with sieve holes.

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