Mud dice breeding device based on mangrove forest protection

Abstract

The utility model discloses a mud dice breeding device based on mangrove forest protection, which comprises a breeding cylinder partially buried in a mud beach of a mangrove forest, the breeding cylinder is of a cylinder structure with two closed ends, handles are integrally formed on the outer sides of the two ends of the breeding cylinder, a window is formed on the side wall of the breeding cylinder, and the window is provided with a plurality of through holes. A protective net is fixedly arranged outside the window; a plurality of drainage holes are formed in the side, right opposite to the window, of the breeding cylinder and formed below the mud line of the mangrove forest mud beach, and the number of the drainage holes is in direct proportion to the silt ratio of the mangrove forest mud beach. The device can protect the mud dice from being attacked by natural enemies, the mud dice can be collected without long-time rummaging, large-area soil turning is avoided, manpower is saved, meanwhile, the mangrove forest is reasonably utilized to promote coast farmers to protect the enthusiasm of the mangrove forest, and the device is integrally simple, easy to mount and dismount and extremely high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of protecting mangroves and their biodiversity and mud lichen technology, in particular to a mud lichen breeding device based on protecting mangroves. Background Art

[0002] Mangroves are wetland woody plant communities composed of evergreen trees or shrubs, mainly mangrove plants, growing in the intertidal zones of tropical and subtropical coasts. They play an important role in purifying seawater, preventing wind and waves, fixing carbon, and maintaining biodiversity. They are known as "coastal guards" and "green lungs of the ocean". They are also important habitats for rare and endangered waterfowl, and places for fish, shrimp, crabs, and shellfish to grow and reproduce. Its superior natural environment and suitable temperature make the products particularly rich, especially the mud ding in the mudflats, which is the main specialty here. The mud ding belongs to the phylum Echinops, and its body is about 10 cm long and cylindrical.

[0003] Due to the presence of natural enemies such as crabs and birds, mud minnows are easily caught directly. Therefore, mud minnows live at a relatively deep depth, about 30 cm or even deeper. When farmers raise mud minnows, on the one hand, they need to turn over the intertidal zone on a large scale, resulting in a reduction in the biodiversity of the intertidal zone and damage to the biodiversity of mangroves. If farmers are restricted from turning over mangroves to obtain mud minnows, it will definitely damage farmers' enthusiasm for protecting mangroves, resulting in no way to protect mangroves in the long term, and failing to achieve the goal of long-term and conscious protection of mangroves. Utility Model Content

[0004] The purpose of the utility model is to provide a mud minnow breeding device based on protecting mangroves. The overall structure is simple and easy to operate. It can effectively protect mud minnows from attacks by natural enemies and reduce the impact of human production activities on the biodiversity of mangroves. The number of drainage holes is set according to the sediment ratio to create the most suitable breeding environment for mud minnows, and the utility model is highly practical.

[0005] To achieve the above-mentioned purpose, the utility model provides a mudfish breeding device based on protecting mangroves, comprising a breeding tube partially buried in the mudflat of the mangroves, the breeding tube being a cylindrical structure with both ends closed, handles being integrally formed on the outer sides of both ends of the breeding tube, a window being opened on the side wall of the breeding tube, and a protective net being fixedly provided outside the window;

[0006] A plurality of drainage holes are arranged on the side of the breeding tube opposite to the window. The drainage holes are opened below the mud line of the mangrove mudflat, and the number of the drainage holes is proportional to the mud-to-sand ratio of the mangrove mudflat.

[0007] Preferably, the window is a rectangular structure, and the breeding tube and the protective net are both made of PPR material.

[0008] Preferably, mud and sand are provided inside and outside the breeding tube, the height of the mud and sand inside the breeding tube is lower than the lower edge of the window, and the height of the mud and sand outside the breeding tube is lower than the height of the mud and sand inside the breeding tube.

[0009] Preferably, the drainage holes are evenly spaced apart.

[0010] Preferably, the inner diameter of the breeding cylinder is 20 to 35 cm, and the length of the breeding cylinder is 100 to 120 cm.

[0011] Preferably, the protective net is fixedly connected to the breeding tube by a plurality of cable ties, and the breeding tube is evenly provided with fixing holes cooperating with the cable ties.

[0012] Preferably, the pore size of the protective net is between 0.1 and 0.5 cm.

[0013] Therefore, the utility model adopts the above-mentioned mud cultivation device based on protecting mangroves, and the beneficial effects are as follows:

[0014] (1) The utility model sets a protective net on the culture tube, which can effectively protect the mudfish from attacks by natural enemies such as crabs and birds, facilitates the collection of mudfish, saves labor, and at the same time does not require long-term and large-scale turning of the soil, thereby greatly reducing the damage to the biodiversity in the mangroves.

[0015] (2) The breeding tube used in the utility model is made of PPR material, which has good heat resistance, pressure resistance and corrosion resistance, is environmentally friendly, and has a certain sun protection ability. It can effectively resist the damage of ultraviolet rays in the mangrove environment and extend the overall service life of the device.

[0016] (3) The utility model has a simple overall structure, and the number of drainage holes is set according to the sediment ratio, which is more conducive to the exchange of nutrients in the water body and water conservation at low tide, and is extremely practical.

[0017] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a mud culturing device for protecting mangroves according to the utility model;

[0019] Figure 2 This is a structural schematic diagram of an embodiment of a mud culturing device for protecting mangroves according to the utility model before the installation of a protective net;

[0020] Figure 3 This is a schematic diagram of a drainage hole side of an embodiment of a mud cultivation device based on protecting mangroves in the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the height of mud and sand inside and outside the breeding tube of an embodiment of a mud dung breeding device based on protecting mangroves.

[0022] Reference numerals

[0023] 1. Breeding tube; 2. Handle; 3. Window; 4. Protective net; 5. Fixing hole; 6. Drainage hole; 7. Inner mud height; 8. Outer mud height. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] As shown in the figure, a mudfish breeding device based on protecting mangroves includes a breeding tube 1 partially buried in the mangrove mudflat. The breeding tube 1 is a cylindrical structure with both ends closed. The inner diameter of the breeding tube 1 is 20 to 35 cm, and the length of the breeding tube 1 is 100 to 120 cm. Due to the factors of natural enemies such as crabs and birds, the living depth of mudfish is much greater than 30 cm. The inner diameter of the breeding tube 1 is set within the range of 20 to 35 cm, and the living depth of mudfish can be controlled within the range of 30 cm, which is convenient for the harvest of mudfish in the later stage. As an embodiment, the inner diameter of the breeding tube 1 is set to 30 cm, which is convenient for burying and taking the breeding tube 1.

[0027] The outer sides of the two ends of the breeding tube 1 are integrally formed with handles 2, which are convenient for taking out or placing the breeding tube 1. A window 3 is provided on the side wall of the breeding tube 1. The window 3 is a rectangular structure. Mud and sand are provided inside and outside the breeding tube 1. The mud and sand of the mangrove mudflat are filled into the breeding tube 1 through the window 3 and used as breeding mud. It should be noted that the height of the mud and sand inside the breeding tube 1, that is, the inner mud height 7 must be lower than the lower edge of the window 3, and the height of the mud and sand outside the breeding tube 1, that is, the outer mud height 8 must be lower than the height of the mud and sand inside the breeding tube 1, so as to ensure the best breeding environment for mudfish.

[0028] A protective net 4 is fixedly arranged outside the window 3, and the protective net 4 can effectively prevent the attack of natural enemies such as crabs or birds on the mud shrimp. The protective net 4 with a hole diameter of 0.1 to 0.5 cm is selected. The size of the protective net 4 is preferably such that it completely covers the window 3 and leaves a long side. Then, it is tied and fixedly connected with the breeding tube 1 through a number of cable ties. The breeding tube 1 is evenly provided with fixing holes 5 that cooperate with the cable ties. As an embodiment, three evenly arranged fixing holes 5 are punched on the breeding tube 1 on both sides of the window 3 using a drill bit for fixing the protective net 4.

[0029] The breeding tube 1 and the protective net 4 are both made of food packaging grade PPR material. PPR material has excellent heat resistance, pressure resistance and corrosion resistance, is environmentally friendly, and has a certain sun protection ability. It can effectively resist the damage of ultraviolet rays in the mangrove environment and extend the service life of the breeding tube 1 and the protective net 4.

[0030] A plurality of drainage holes 6 are arranged on the side of the culture tube 1 opposite to the window 3. The drainage holes 6 are evenly spaced. The drainage holes 6 are opened below the mud line of the mangrove mudflat. The drainage holes 6 are helpful for the exchange of nutrients in the water body and water conservation at low tide. The number of the drainage holes 6 is proportional to the sediment ratio of the mangrove mudflat, as shown in Table 1 below:

[0031] Table 1. Relationship between the proportion of sediment and the number of openings

[0032] Serial number Sediment ratio (%) Number of holes (0.5cm) 1 ≤10 2 2 20 5 3 40 15 4 60 35 5 ≥80 ≥100

[0033] When the device of the utility model is used, the sediment ratio of the beach in the mangrove is first determined, and then a corresponding number of drainage holes 6 are opened on the back side of the culture tube 1 (directly opposite the window 3) (the drainage holes 6 should be opened below the mud line of the mangrove mud flat). For example, when the sediment ratio of the mangrove mud flat is about 40%, 15 drainage holes 6 are evenly opened; then the drainage hole 6 side of the culture tube 1 is buried horizontally in the beach with the window 3 side facing upward and the drainage hole 6 side facing downward. Note that it is not completely buried, and the window 3 needs to be completely exposed to the ground to avoid affecting ventilation and the protective net. 4; evenly spread the mud on the mangrove mudflat inside the breeding tube 1, and its laying height must be lower than the lower edge of the window 3. If it is higher than the lower edge of the window 3, the survival rate of the mud minnows will be affected; use a cable tie to fix the protective net 4 on the window 3, and then use mud to seal the edge of the protective net 4 that exceeds the window 3. When sealing the edge, it should be ensured that the height of the mud outside the breeding tube 1 should be lower than the height of the mud inside the breeding tube 1, and the installation of the device can be completed; when harvesting mud minnows, there is no need to turn the soil for a long time to find mud minnows, just take out the breeding tube 1 to collect them.

[0034] Therefore, the utility model adopts the above-mentioned mud minnow breeding device based on protecting mangroves, which is beneficial to protecting mud minnows from attacks by natural enemies. Mud minnows can be collected without searching for them for a long time, thus avoiding turning over the soil over a large area, saving labor and effectively protecting the biodiversity of mangroves. The utility model is simple as a whole, easy to install and disassemble, and extremely practical.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A mudfish cultivation device based on protecting mangroves, characterized by: It includes a breeding tube partially buried in the mangrove mudflat, the breeding tube is a cylindrical structure with both ends closed, handles are integrally formed on the outer sides of both ends of the breeding tube, a window is opened on the side wall of the breeding tube, and a protective net is fixedly arranged outside the window; A plurality of drainage holes are arranged on the side of the breeding tube opposite to the window. The drainage holes are opened below the mud line of the mangrove mudflat, and the number of the drainage holes is proportional to the mud-to-sand ratio of the mangrove mudflat.

2. A mud cultivation device based on protecting mangroves according to claim 1, characterized in that: The window is a rectangular structure, and the breeding tube and the protective net are both made of PPR material.

3. A mud cultivation device based on protecting mangroves according to claim 1, characterized in that: There is mud and sand both inside and outside the breeding tube, the height of the mud and sand inside the breeding tube is lower than the lower edge of the window, and the height of the mud and sand outside the breeding tube is lower than the height of the mud and sand inside the breeding tube.

4. The mud cultivation device based on protecting mangroves according to claim 1 is characterized by: The drainage holes are evenly spaced apart.

5. The mud cultivation device based on protecting mangroves according to claim 1 is characterized by: The inner diameter of the breeding tube is 20 to 35 cm, and the length of the breeding tube is 100 to 120 cm.

6. The mud cultivation device based on protecting mangroves according to claim 1 is characterized by: The protective net is fixedly connected to the breeding tube through a plurality of cable ties, and the breeding tube is evenly provided with fixing holes that cooperate with the cable ties.

7. The mud cultivation device based on protecting mangroves according to claim 1 is characterized by: The aperture of the protective net is between 0.1 and 0.5 cm.

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