Mangrove tidal flat-based three-dimensional ecological aquaculture method for aquatic products and application thereof

Abstract

This invention relates to the field of sustainable utilization of mangrove tidal flats, specifically to a method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats and its application. The method includes the following steps: (a) setting up mudskipper apartments and support-type aquaculture containers on both sides of the tidal channels in the mangrove forest; wherein the tidal channels include: tidal channels outside the forest edge and / or tidal channels within the forest; (b) cultivating mudskippers in the mudskipper apartments and cultivating aquatic products in the support-type aquaculture containers; (c) harvesting and restocking. This method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats has advantages such as protecting mangroves, promoting aquaculture, and reducing costs.

Description

Technical Field

[0001] This invention relates to the field of sustainable utilization of mangrove tidal flats, and more specifically, to a method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats and its application. Background Technology

[0002] Mangrove tidal flats are among the world's most important blue carbon storage systems, highly biomass-rich ecosystems, and natural dikes effectively protecting against typhoons. However, due to global warming, rising sea levels, and intensive human activities, mangrove tidal flats have been severely damaged, and their area has declined sharply. This directly impacts the decline in nearshore biodiversity in the waters adjacent to mangrove tidal flats, leading to reduced coastal fisheries. In particular, mangrove tidal flats contain abundant mudskippers, providing valuable high-protein food for birds and humans; damage to mangroves will result in a reduction or disappearance of mudskippers.

[0003] Coastal residents, in their pursuit of the high-value mudskippers from mangrove tidal flats, have recklessly destroyed these flats through indiscriminate harvesting, leading to large-scale mangrove death and accelerating mudskipper decline. Some coastal residents in my country purchase mudskipper seedlings and release them into mangrove tidal flats. However, harvesting the mudskippers further damages the mangrove forests, creating a lose-lose situation where the mangroves are destroyed and the yield and profitability of mudskipper farming decrease. Furthermore, mudskippers are extremely sensitive to environmental changes; alterations to the environment negatively impact their growth.

[0004] To protect mangroves, a special action plan for mangrove restoration was proposed, and mangrove reserves were established, prohibiting fishing activities such as beachcombing within these reserves. While mangroves and their understory invertebrates have been protected, the short-term interests of local fishermen have been harmed, and mangrove protection efforts have not received support from local residents. Whether damaged mangrove tidal flats can be technically restored to maximize their ecological benefits while also providing a source of high-value seafood to ensure income for local fishermen, and thus gain their support for mangrove protection policies and measures, remains a problem to be solved.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats and its application. The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats has the advantages of protecting mangroves, promoting aquaculture, and reducing costs.

[0007] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0008] One aspect of the present invention relates to a method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats, comprising the following steps:

[0009] (a) Construct mudflat apartments and scaffolded aquaculture containers on both sides of the mangrove tidal channels, such as Figure 1 , Figure 2 and Figure 3 As shown;

[0010] The tidal gullies include: tidal gullies outside the forest edge and / or tidal gullies within the forest;

[0011] (b) Cultivating mudskippers in the mudskipper apartment and cultivating aquatic products in a support culture container;

[0012] (c) Harvesting and replanting.

[0013] The aforementioned three-dimensional ecological aquaculture method based on mangrove tidal flats has advantages such as protecting mangroves, promoting aquaculture, and reducing costs.

[0014] Another aspect of the present invention relates to a method for protecting mangrove tidal flats, including the aforementioned three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by the present invention sets up mud houses and frame aquaculture containers on both sides of the mangrove tidal channel, and aquatic products are cultivated in the mud houses and frame aquaculture containers. The cultivation of aquatic products can promote the growth of mangroves and protect mangroves from damage. The cultivation of aquatic products on both sides of the tidal channel protects aquatic products from predation by natural enemies, reduces the workload of harvesting aquatic products, increases the yield of aquatic products, and increases income. It is a solution that promotes the coordinated and sustainable development of mangrove growth and aquatic product cultivation.

[0017] (2) The three-dimensional ecological aquaculture method for mangrove tidal flats provided by this invention involves aquaculture in tidal channels outside the forest edge and within the forest. This facilitates nutrient exchange and drainage in the mangrove area, increases oxygen content in the mangrove rhizosphere, improves the rhizosphere environment, and promotes mangrove growth. During high tide, the tide slowly flows into the tidal channels, reaching the forest edge earlier; during low tide, it slowly recedes, draining accumulated water from the mangrove flats earlier and providing more time for the mangroves to emerge from the water. The tidal channels also provide habitats for wild fish, shrimp, crabs, snails, etc., which can be caught and harvested for income.

[0018] (3) The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by the present invention sets up mud apartments on both sides of the tidal channel to prevent tidal flat erosion caused by the ebb and flow of tides, further protecting the mangrove rhizosphere environment. Apartment-style mud apartment aquaculture avoids the damage to mangroves caused by manual digging in the forest, reduces the workload of mud digging, and can increase income.

[0019] (4) The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by the present invention sets up support aquaculture containers on both sides of the tidal channel to protect the mangroves, which can prevent fishermen from entering the forest to engage in fishing activities and damage the mangroves, and can also effectively slow down the erosion of the mangroves by the rising tide, thus playing a good protective role for the mangrove plants.

[0020] (5) The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by the present invention can increase income and reduce the cost of mangrove protection by raising aquatic products in a support aquaculture container, avoid protecting mangroves for the sake of protecting mangroves, and achieve the unity of mangrove protection and efficient utilization of tidal flats.

[0021] (6) The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by the present invention defines the mangrove protection area by using mud-brick apartments and support aquaculture containers, while retaining an appropriate range of bare beach on the outside, providing habitat and feeding grounds for seabirds, and demonstrating a high degree of coupling between ecosystem protection and marine economic development. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram illustrating the arrangement scheme of the mudskipper apartment and the support aquaculture container provided by the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0025] Figure 3 for Figure 1 Cross-sectional view;

[0026] Figure 4 This is a schematic diagram of the end structure of the support culture container body provided by the present invention. The length unit marked on the figure is mm.

[0027] Figure 5 This is a schematic diagram of the end structure of the support container body for raising mud clams provided by the present invention. The length unit marked on the figure is mm.

[0028] Figure 6 This is a schematic diagram of the end structure of the support aquaculture container body for aquaculture of fish, shrimp, crab and snails provided by the present invention. The length unit marked on the figure is mm.

[0029] Figure label:

[0030] 1-Outer tidal ditch of forest edge, 2-Tidal ditch in forest, 3-Mangrove forest, 4-Muddy building, 5-Frame aquaculture container, 6-Network material, 7-Water exchange port, 8-Gate, 9-Drainage hole, 10-Feed dispenser, 11-Side wall of frame aquaculture container, 12-Muddy tidal flat soil. Detailed Implementation

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of the present invention, but not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. 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. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0032] One aspect of the present invention also relates to a method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats, comprising the following steps:

[0033] (a) Mud pecking houses 4 and support aquaculture containers 5 are set up on both sides of the tidal channel of mangrove 3, such as Figure 1 , Figure 2 and Figure 3 As shown;

[0034] The tidal gullies include: tidal gully 1 outside the forest edge and / or tidal gully 2 in the forest;

[0035] (b) Cultivating mudskippers in the mudskipper apartment 4 and cultivating aquatic products in the support culture container 5;

[0036] (c) Harvesting and replanting.

[0037] The aforementioned three-dimensional ecological aquaculture method based on mangrove tidal flats involves setting up mudflat apartments 4 and support aquaculture containers 5 on both sides of the tidal channel of mangrove 3, and then cultivating aquatic products in the mudflat apartments 4 and support aquaculture containers 5. The cultivation of aquatic products can promote the growth of mangrove 3, protect mangrove 3 from damage, and protect aquatic products from predation by natural enemies by cultivating aquatic products on both sides of the tidal channel. It can reduce the workload of harvesting aquatic products, increase the yield of aquatic products, and increase income. It is a solution that promotes the coordinated and sustainable development of mangrove 3 growth and aquaculture.

[0038] The tidal gullies 1 outside the forest edge and 2 within the forest facilitate nutrient exchange and drainage in the mangrove forest 3, increasing oxygen content in the rhizosphere, improving the rhizosphere environment, and promoting mangrove growth. During high tide, the tide slowly flows into the tidal gullies, reaching the forest edge earlier; during low tide, it recedes slowly, draining water from the mangrove forest 3's wetlands earlier, providing more time for the mangroves to emerge above water. The tidal gullies also provide habitats for wild fish, shrimp, crabs, snails, etc., allowing for their capture and income generation.

[0039] Setting up mud ant apartments 4 on both sides of the tidal channel can prevent tidal erosion caused by the ebb and flow of tides, further protecting the rhizosphere environment of mangroves 3. Apartment-style mud ant farming avoids the damage to mangroves 3 caused by manual digging, reduces the workload of mud ant digging, and can increase income.

[0040] Setting up support structures for aquaculture containers 5 on both sides of the tidal channel serves to protect the mangrove forest 3, preventing fishermen from entering the forest to engage in fishing activities and damaging the mangrove forest 3. It can also effectively slow down the erosion of the mangrove forest 3 by the rising tide, thus playing a good protective role for the mangrove plants.

[0041] Aquaculture within the support aquaculture container 5 can increase income, reduce the cost of mangrove conservation, avoid protecting mangroves for the sake of protecting mangroves, and achieve a balance between mangrove conservation and efficient utilization of tidal flats.

[0042] The mud-needle apartment 4 and the support aquaculture container 5 define the protection area of ​​mangrove 3, while retaining an appropriate range of bare beach on the outer side to provide habitat and feeding grounds for seabirds, demonstrating a high degree of coupling between ecosystem protection and marine economic development.

[0043] Furthermore, the distance between the tidal ditch 1 outside the forest edge line and the forest edge line is 5 to 10 meters, including but not limited to a point value of any one of 5m, 6m, 7m, 8m, 9m, or 10m, or a range value between any two. Setting this distance can provide a buffer zone for mangrove protection and also provide a feeding and resting place for seabirds.

[0044] Furthermore, based on the dominant current of rising and falling tides, the aforementioned tidal channel 1 is opened outside the forest edge line, with the opening of the tidal channel facing the open sea and the direction of the main current of rising tide.

[0045] Furthermore, the width of the tidal ditch 1 outside the forest edge line is 3 to 5 m, including but not limited to a point value of any one of 3 m, 3.5 m, 4 m, 4.5 m or 5 m, or a range value between any two.

[0046] Furthermore, the depth of the tidal ditch 1 outside the forest edge line is 1 to 1.5 m, including but not limited to a point value of any one of 1 m, 1.1 m, 1.2 m, 1.3 m, 1.4 m or 1.5 m or a range value between any two.

[0047] Furthermore, the width of the forest tidal gully 2 is ≥2m, including but not limited to a point value of any one of 2m, 3m, 4m, 5m or 6m or a range value between any two.

[0048] Furthermore, the depth of the forest tidal gully 2 is ≥0.8m, including but not limited to a point value or a range between any two of 0.8m, 1m, 1.2m, 1.4m, 1.6m, 1.8m or 2m.

[0049] The width and depth of the tidal gully 1 outside the forest edge and the tidal gully 2 in the forest are limited within a certain range. The inflow and outflow rates of the tides during high tide and low tide are controlled to protect the mangrove forest 3 from the influence of the tides and promote the growth of the mangrove forest 3.

[0050] This invention does not specifically limit the type of aquatic products; all aquatic products in this field are applicable to the three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided by this invention. In some specific embodiments, the aquatic products include, but are not limited to, at least one of: fish, shrimp, crab, snails, or mudskippers.

[0051] Furthermore, the distance between the mudskipper apartment 4 and the support aquaculture container 5 is 0.4–0.6 m, including but not limited to a point value of 0.4 m, 0.45 m, 0.5 m, 0.55 m, or 0.6 m, or a range between any two. Limiting the distance between the mudskipper apartment and the support aquaculture container within a certain range serves two purposes: firstly, it provides a passage for feeding, observation, and harvesting; secondly, it helps to mitigate the dynamic force of rising tides.

[0052] Furthermore, one to three rows of mud-studded apartments 4 are set up on both sides of the mangrove 3 tidal channel.

[0053] The mudskipper apartment 4 mentioned in this invention can be used to raise mudskippers, providing space and nutrients for their growth. The specific structure, shape, material and size of the mudskipper apartment 4 are not specifically limited. Any breeding container in the art that can meet the needs of mudskipper growth can be used to implement the technical solution of this invention.

[0054] Furthermore, the mud-plaster apartment 4 has an opening at the top and drainage holes 9 on the side walls.

[0055] Furthermore, the width of the mud-needle apartment 4 is 0.5 to 0.8m, including but not limited to a point value of any one of 0.5m, 0.6m, 0.7m or 0.8m or a range value between any two.

[0056] The present invention does not specifically limit the length of the mud-plaster apartment 4, but can further determine it according to the terrain where the mud-plaster apartment 4 is placed. In some specific embodiments, the length of the mud-plaster apartment 4 is further 1.0 to 1.5m.

[0057] Furthermore, the top of the mudskipper apartment 4 protrudes 0.10–0.15m above the beach surface, including but not limited to a point value or a range between any two of 0.10m, 0.11m, 0.12m, 0.13m, 0.14m, or 0.15m. The mudskipper apartment 4 protruding a certain height above the beach surface can dissipate debris and can also dampen waves, block water, and intercept sediment. Mudskippers generally inhabit the top 0.20–0.40m of tidal flat soil in low-tide areas. The elevation near tidal channels is usually below the low-tide level. The top of the apartment protruding 0.10–0.15m above the beach surface allows for cultivation in low-elevation areas near tidal channels where mudskipper growth is unsuitable; furthermore, harvesting does not require digging, saving labor and effort.

[0058] Furthermore, the mud-studded apartment 4 is set at a distance of 0.1 to 1.0m from the edge of the tidal ditch.

[0059] Furthermore, mud oyster seedlings were introduced into the mud oyster apartment 4 for mud oyster cultivation.

[0060] Further, the support aquaculture container 5 includes: a support aquaculture container body and a support disposed at the bottom of the support aquaculture container body, the top of the support aquaculture container body has an opening, and a gate 8 is disposed at the end of the support aquaculture container body, with a water exchange port 7 above the gate 8, such as... Figure 4 As shown.

[0061] Furthermore, the bottom of the support aquaculture container body protrudes 0.5–0.8m above the beach surface, including but not limited to a point value of 0.5m, 0.6m, 0.7m, or 0.8m, or a range between any two. This 0.5–0.8m protrusion of the bottom of the support aquaculture container body above the beach surface serves as a channel for tidal flow, preventing obstruction of tidal flow due to its close proximity to the tide surface, and avoiding tidal erosion caused by the rigid container altering the direction of water flow.

[0062] Furthermore, the height of the support aquaculture container body is 0.8 to 1.0 m, including but not limited to any one of 0.8 m, 0.85 m, 0.9 m, 0.95 m or 1.0 m or any range between two of them.

[0063] Furthermore, the width of the support aquaculture container body is 1.0 to 1.5 m, including but not limited to a point value of any one of 1.0 m, 1.1 m, 1.2 m, 1.3 m, 1.4 m or 1.5 m or a range between any two.

[0064] By limiting the height and width of the support structure aquaculture container within a certain range, sufficient space can be provided for the growth and movement of aquatic products. The height and width of the support structure aquaculture container can be adjusted within a certain range according to different types of aquatic products. The length of the support structure aquaculture container is not specifically limited; its length can be designed based on the length of the tidal channel. It can include several independent support structures aquaculture containers or a single integrated aquaculture container.

[0065] Furthermore, the height of the gate 8 is 0.5–0.8 m, including but not limited to a point value of 0.5 m, 0.6 m, 0.7 m, or 0.8 m, or a range between any two. Since the height of the gates 8 at both ends of the support aquaculture container body is slightly lower than the side walls 11 of the support aquaculture container body, the gates 8 and the side walls together form a water exchange inlet 7 with a height of 0.2–0.5 m. This water exchange inlet 7 facilitates water exchange at the top of the support aquaculture container 5. By setting the gates 8, it is possible to ensure that there is water to a depth of 0.5–0.8 m inside the support aquaculture container 5 after the tide recedes.

[0066] Furthermore, an indicator for automatically recording water level is provided on the inner side of the gate plate 8. When there is 0.5 to 0.8 m of water in the support aquaculture container 5 after the tide recedes, the gate plate 8 will automatically close for aquaculture. During the tide, water can be exchanged through the gaps on the gate plates 8 at both ends (water exchange inlets 7) and the top of the tank.

[0067] Furthermore, aquatic seedlings are placed into the support aquaculture container 5 for aquaculture.

[0068] In some specific embodiments, when the aquatic product cultured in the support aquaculture container 5 is mudskipper, a layer of muddy tidal flat soil 12 with a thickness of 0.4 to 0.7 m (for example, it can be any one of 0.4 m, 0.5 m, 0.6 m, or 0.7 m, or a range between any two) is filled into the support aquaculture container body. This layer is then placed at a distance of 0.2 to 0.5 m (for example, it can be any one of 0.2 m, 0.3 m, 0.4 m, or 0.5 m, or a range between any two) from the bottom wall of the support aquaculture container body. Several drainage holes 9 with a diameter of 1-2 cm (e.g., any point value or range between any two of 1 cm, 1.2 cm, 1.4 cm, 1.6 cm, 1.8 cm, or 2 cm) are made on the side wall 11 of the support aquaculture container. The drainage holes 9 are spaced 50 cm apart to ensure that the bottom 0.2 m thick tidal flat soil can drain in time, providing a breathing and activity environment for the mudskippers. The bottom 0.2-0.5 m thick tidal flat soil is kept in a water-retaining state to provide the humid environment required for the growth of the mudskippers. Figure 5 As shown.

[0069] In some specific embodiments, when the aquatic products cultured in the support aquaculture container 5 are fish, shrimp, crabs, and snails, a feeder 10 is installed on the side wall 11 of the support aquaculture container body at a distance of 0.5 to 0.8 m from the bottom wall of the support aquaculture container body (e.g., any value of 0.5 m, 0.6 m, or 0.8 m, or a range between any two). The spacing of the feeders 10 is 3 to 5 m (e.g., any value of 3 m, 3.5 m, 4 m, 4.5 m, or 5 m, or a range between any two). The feeder 10 contains the feed required for the growth of the cultured aquatic products. When the cultured aquatic products touch the feeder 10, the feed in the feeder 10 is automatically released for the shrimp, crabs, fish, or snails to eat. Figure 6 As shown.

[0070] Furthermore, the top of the mudskipper apartment 4 is covered with a mesh material 6 to protect the mudskipper from predators.

[0071] Furthermore, the top and ends of the support-type aquaculture container 5 are covered with a mesh material 6 to prevent the aquatic products in the tank from escaping during high tide.

[0072] Furthermore, when raising mudskippers, sachets of fragrant bait are placed on the surface of the tidal flats during low tide. The mudskippers will automatically smell the fragrance and feed on it during low tide, and will enter the tidal flats to take refuge and rest during high tide.

[0073] Furthermore, check the remaining feed in the feed dispenser 10 at low tide and replenish it if necessary; replace the feed bag in the mudskipper's sachet if it is low on feed.

[0074] Furthermore, once the farmed shrimp, crabs, and fish reach the harvest standard, they are caught and harvested with nets at low tide, and new seedlings are introduced to replenish them. For mudskippers, the mudskippers can be selected and harvested by checking the mudskippers in the bait pouches. Mudskippers smaller than the harvest standard are released, and seedlings are introduced to ensure the farmed yield.

[0075] Another aspect of the present invention relates to a method for protecting mangrove tidal flats, including the aforementioned three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats.

[0076] The embodiments of the present invention will be described in detail below with reference to examples. However, those skilled in the art will understand that the following examples are for illustrative purposes only and should not be considered as limiting the scope of the invention. Unless otherwise specified in the examples, conventional conditions or conditions recommended by the manufacturer are followed. Reagents or instruments whose manufacturers are not specified are all commercially available conventional products.

[0077] Example 1

[0078] The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided in this embodiment, taking a local tidal flat in Maowei Sea as an example, includes the following steps:

[0079] (1) Dig a tidal ditch 1, 5m wide and 1.5m deep, 5m from the edge of the mangrove forest towards the sea, according to the direction of the dominant tidal current.

[0080] (2) Mud-studded apartments 4 are set up on both sides of the outer tidal ditch 1 along the forest edge line. The mud-studded apartments 4 are 0.7m wide and the top of the apartments protrudes 0.13m above the beach surface. Three rows of mud-studded apartments 4 are set up.

[0081] (3) Erect a support frame 0.5m away from the forest side of the Niding Apartment 4. Place the support frame aquaculture container body on the support frame. The bottom of the support frame aquaculture container body is 0.7m above the beach surface. The support frame aquaculture container body is 0.9m high and 1.3m wide.

[0082] The support aquaculture container has gates 8 at both ends with a height of 0.7m. The inside of the gates 8 is an indicator that automatically records the water level. When the water level in the support aquaculture container is 0.7m after the tide recedes, the gates 8 will automatically close for aquaculture. During the tide, water can be exchanged through the gaps on the gates 8 at both ends (water exchange inlets 7) and the top of the support aquaculture container.

[0083] (4) After filling the body of the support aquaculture container with water, release the seedlings of shrimp, crab, fish and snails. After filling the muddy tidal flat soil 12 into the muddy apartment 4, release the muddy seedlings. Cover the top and two ends of the support aquaculture container body and the top of the muddy apartment 4 with coconut fiber netting to prevent the aquatic products in the tank from escaping during high tide and to prevent the muddy from being preyed on by natural enemies.

[0084] When the aquatic products cultured in the support aquaculture container 5 are fish, shrimp, crab and snail, a feeder 10 is installed on the side wall 11 of the support aquaculture container body 0.6m away from the bottom wall of the support aquaculture container body. The spacing of the feeders 10 is 5m. The feeder 10 is filled with the feed required for the growth of the cultured aquatic products. When the cultured aquatic products touch the feeder 10, the feed in the feeder 10 can be automatically released for the shrimp, crab, fish or snails to eat.

[0085] (5) When raising mudskippers, put sachets of sachets and bait bags on the surface of the tidal flat soil at low tide. The mudskippers will automatically smell the fragrance and feed when the tide is low, and enter the tidal flat soil to take refuge and rest when the tide is high.

[0086] (6) Check the remaining feed in the feed dispenser 10 when the tide is low, and replenish it if it is insufficient; replace the feed bag in the sachet for raising mudskippers if it is insufficient.

[0087] (7) When the shrimp, crabs and fish raised reach the harvest standard, use nets to catch and harvest them at low tide, and release new seedlings to replenish them; for mudskippers, check the mudskippers in the sachet bait bag, select mudskippers of suitable size for harvesting, release mudskippers smaller than the harvest standard, and at the same time replenish seedlings to ensure the breeding yield.

[0088] Example 2

[0089] The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided in this embodiment, taking a local tidal flat in Maowei Sea as an example, includes the following steps:

[0090] (1) There is an existing tidal ditch 2 in the mangrove forest with a width greater than 2m and a water depth greater than 0.8m;

[0091] (2) Mud-studded apartments 4 are set up along the shoulders of the tidal gully 2 on both sides. The mud-studded apartments 4 are 0.5m wide and the top of the apartments protrudes 0.15m above the beach surface. Two rows of mud-studded apartments 4 are set up.

[0092] (3) Erect a support frame 0.4m away from the forest side of the Niding Apartment 4, and place the support aquaculture container body on the support frame. The bottom of the support aquaculture container body is 0.5m above the beach surface. The support aquaculture container body is 1.0m high and 1.5m wide.

[0093] The support aquaculture container has gates 8 at both ends with a height of 0.5m. The inside of the gates 8 is an indicator that automatically records the water level. When there is 0.5m of water in the support aquaculture container after the tide recedes, the gates 8 will automatically close for aquaculture. During the tide, water can be exchanged through the gaps on the gates 8 at both ends (water exchange inlets 7) and the top of the support aquaculture container.

[0094] (4) After filling the body of the support aquaculture container with water, release the seedlings of shrimp, crab, fish and snails. After filling the muddy tidal flat soil 12 into the muddy apartment 4, release the muddy seedlings. Cover the top and two ends of the support aquaculture container body and the top of the muddy apartment 4 with coconut fiber netting to prevent the aquatic products in the tank from escaping during high tide and to prevent the muddy from being preyed on by natural enemies.

[0095] When the aquatic products cultured in the support aquaculture container 5 are fish, shrimp, crab and snail, a feeder 10 is installed on the side wall 11 of the support aquaculture container body 0.5m away from the bottom wall of the support aquaculture container body. The spacing of the feeders 10 is 4m. The feeder 10 is filled with the feed required for the growth of the cultured aquatic products. When the cultured aquatic products touch the feeder 10, the feed in the feeder 10 can be automatically released for the shrimp, crab, fish or snails to eat.

[0096] (5)~(7) are the same as in Example 1.

[0097] Example 3

[0098] The three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats provided in this embodiment, taking a local tidal flat in Maowei Sea as an example, includes the following steps:

[0099] (1) A tidal ditch 1, 3m wide and 1.5m deep, is dug 10m from the edge of the mangrove forest 3 towards the sea, according to the direction of the dominant tidal current. There is an existing tidal ditch 2 in the mangrove forest 3 with a width greater than 2m and a water depth greater than 0.8m.

[0100] (2) Mud-studded apartments 4 are set up along the outer edge of the forest tidal ditch 1 and the shoulders of the existing forest tidal ditch 2. The mud-studded apartments 4 are 0.8m wide and the top of the apartments protrudes 0.10m above the beach surface. One row of mud-studded apartments 4 is set up.

[0101] (3) Erect a support frame 0.6m away from the forest side of the Niding Apartment 4. Place the support frame aquaculture container body on the support frame. The bottom of the support frame aquaculture container body is 0.8m above the beach surface. The support frame aquaculture container body is 0.8m high and 1.0m wide.

[0102] The support aquaculture container has gates 8 at both ends with a height of 0.8m. The inside of the gates 8 is an indicator that automatically records the water level. When the water level in the support aquaculture container is 0.8m after the tide recedes, the gates 8 will automatically close for aquaculture. During the tide, water can be exchanged through the gaps on the gates 8 at both ends (water exchange inlets 7) and the top of the support aquaculture container.

[0103] (4) After filling the support aquaculture container body and muddy apartment 4 with muddy tidal flat soil 12, muddy seedlings are placed in the container. The top and two ends of the support aquaculture container body and the top of the muddy apartment 4 are covered with coconut fiber netting.

[0104] When the aquatic products cultured in the support aquaculture container 5 are mudfish, a 0.5m thick layer of muddy tidal flat soil 12 is filled into the support aquaculture container body. Several drainage holes 9 with a diameter of 1-2cm are opened on the side wall 11 of the support aquaculture container body at a distance of 0.2-0.5m from the bottom wall of the support aquaculture container body. The spacing between the drainage holes 9 is 50cm.

[0105] (5)~(7) are the same as in Example 1.

[0106] Although the present invention has been illustrated and described with specific embodiments, it should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, without departing from the spirit and scope of the present invention; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention; therefore, this means that all such substitutions and modifications that fall within the scope of the present invention are included in the appended claims.

Claims

1. A three-dimensional ecological aquaculture method for aquatic products based on mangrove tidal flats, characterized in that, Includes the following steps: (a) Set up mud-bearing apartments and frame aquaculture containers on both sides of the tidal channels of the mangroves; The tidal gullies include: tidal gullies outside the forest edge and / or tidal gullies within the forest; The mudflat apartment has an opening at the top and drainage holes on the side walls; the top of the mudflat apartment protrudes 0.10~0.15m above the beach surface. The support aquaculture container includes: a support aquaculture container body and a support set at the bottom of the support aquaculture container body. The top of the support aquaculture container body has an opening, and a gate is set at the end of the support aquaculture container body. A water exchange port is provided above the gate. The bottom of the support aquaculture container body protrudes 0.5~0.8m above the beach surface. (b) Cultivating mudskippers in the mudskipper apartment and aquatic products in the rack culture container; (c) Harvesting and replanting.

2. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, Includes at least one of the following technical features: (1) The distance between the outer tidal ditch of the forest edge line and the forest edge line is 5~10m; (2) The width of the tidal ditch outside the forest edge line is 3~5m; (3) The depth of the tidal gully outside the forest edge line is 1~1.5m.

3. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, The width of the forest tidal creek is ≥2m; And / or, the depth of the forest tidal creek is ≥0.8m.

4. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, The distance between the mudskipper apartment and the support aquaculture container is 0.4~0.6m.

5. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, One to three rows of mud-studded apartments are set up on both sides of the mangrove tidal gully.

6. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, The width of the mud-needle apartment is 0.5~0.8m.

7. The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats according to claim 1, characterized in that, Includes at least one of the following technical features: (1) The height of the support aquaculture container body is 0.8~1.0m and the width is 1.0~1.5m; (2) The height of the gate is 0.5~0.8m.

8. A method for protecting mangrove tidal flats, characterized in that, The method for three-dimensional ecological aquaculture of aquatic products based on mangrove tidal flats, as described in any one of claims 1 to 7.

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