A system for growing salsa reefs and its use method

Abstract

The invention discloses a sargassum proliferation algae reef system, comprising an algae proliferation reef, a proliferation reef fixing plate and a support plate, wherein the upper surface of the algae proliferation reef is provided with an annular outer baffle plate and an annular inner baffle plate, the inner surface of the annular inner baffle plate is a water storage area I, the water storage area II is between the annular outer baffle plate and the annular inner baffle plate, and the annular inner baffle plate is provided with a plurality of fractures; the algae proliferation reef is fixed on the upper surface of the proliferation reef fixing plate, the long side of the proliferation reef fixing plate is parallel to the wave direction, the end of the proliferation reef fixing plate away from the waves is directly in contact with the beach, and the end of the proliferation reef fixing plate close to the waves is erected on the beach through the support plate, so that the algae proliferation reef on the proliferation reef fixing plate is kept horizontal. The algae reef system of the invention has a simple process and a low preparation cost. It is found through use that the device has a high deposition area, a clean surface of the algae body, no cyst algae, water cloud, etc. are attached, and the algae body is complete without animal gnawing traces.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture, and in particular relates to a sargassum thunbergii proliferation algae reef system and a use method thereof. Background Art

[0002] Sargassum thunbergii belongs to the Phaeophyceae, Pilophyceae, Fucosales, Sargassumaceae, and Sargassum genus. It is mainly distributed in the intertidal zone and is a dominant species, distributed from the Liaodong Peninsula in the north to the Leizhou Peninsula in the south. Seaweed beds are places where large seaweed (brown algae) thrive in the lower intertidal zone and several meters shallow water of the subtidal zone in mid- and high-latitude waters. Sargassum thunbergii is an important tool algae for seaweed bed restoration.

[0003] The intertidal zone refers to the coast between the average highest tide level and the lowest tide level, that is, the range from the place submerged when the sea water rises to the highest to the place exposed to the water surface when the tide recedes to the lowest. The intertidal zone includes the high tide zone, the mid-tidal zone and the low tide zone. The high tide zone is located at the uppermost part of the intertidal zone, with the upper boundary being the high tide line of spring tide and the lower boundary being the high tide line of neap tide. It is submerged by the sea water for a very short time and is only submerged by the sea water during high tide; the mid-tidal zone occupies most of the intertidal zone, with the upper boundary being the high tide line of neap tide and the lower boundary being the low tide line of neap tide, and is a typical intertidal zone area; the upper boundary of the low tide zone is the low tide line of neap tide and the lower boundary is the low tide line of spring tide, and it is immersed in water most of the time and is only exposed to the water surface for a short time during the ebb of spring tide.

[0004] The hydrodynamics in the low tide zone is relatively strong, and seaweed tends to grow in places where a certain sedimentation effect can be formed. For example, seaweed tends to grow in the inner corners formed by reefs, which are not easily directly impacted by waves. Moreover, the inner corners have a sedimentation effect, which is convenient for the deposition and attachment of fertilized eggs of seaweed sexual reproduction. However, the hydrodynamics in the high tide zone is not strong, and the condition that restricts the growth of seaweed is the amount of water. Seaweed tends to grow in places where there is still water after low tide, and the angle of the reef (90° or 120°) has less impact than the low tide zone. In the back eddy current area behind the reef, obvious sediment and nutrient salt deposition can be observed (Tao Feng, 2008), and the size of the back eddy current area is positively correlated with the height of the algae reef. The survey found that seaweed tends to grow in areas with water after low tide, and the seaweed should not be exposed for too long, otherwise it will die easily.

[0005] The investigation also found that seaweed is easy to grow and reproduce in reef layouts that can form suitable hydrodynamics. Insufficient hydrodynamics cannot wash away the seaweed, which is not conducive to the long-term growth of seaweed, but excessive hydrodynamics are not conducive to the attachment of seaweed. The high tide zone has smaller waves, which is more conducive to the growth of seaweed seedlings. However, due to insufficient hydrodynamics in the high tide zone, some seaweed will be attached and entangled by water clouds and eventually rot if the high tide zone lasts for too long. The low tide zone has stronger hydrodynamics, which can wash away the fixed seaweed, and the growth cycle of the fixed seaweed is longer. The present invention provides a system for the proliferation of sargassum and a method for the proliferation of sargassum by analyzing the survey results and combining the characteristics of the influence of the low tide zone and the high tide zone on the reproduction of sargassum. Summary of the invention

[0006] In view of the deficiencies and defects of the prior art, the present invention provides a Salvinia thunbergii proliferation algae reef system and a method of using the same.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] A sargassum proliferation algae reef system comprises an algae proliferation reef, a proliferation reef fixing plate and a support plate, wherein an annular outer baffle plate and an annular inner baffle plate are provided on the upper surface of the algae proliferation reef, a water storage area I is provided inside the annular inner baffle plate, a water storage area II is provided between the annular outer baffle plate and the annular inner baffle plate, and a plurality of fractures are provided on the annular inner baffle plate; the algae proliferation reef is fixed to the upper surface of the proliferation reef fixing plate, the long side of the proliferation reef fixing plate is parallel to the wave direction, an end of the proliferation reef fixing plate away from the waves is directly in contact with the beach, and an end of the proliferation reef fixing plate close to the waves is erected on the beach through the support plate, so that the algae proliferation reef on the proliferation reef fixing plate is kept horizontal.

[0009] Preferably, the algae proliferation reef is cylindrical, and the diameter of the algae proliferation reef is 40 cm; the thickness of the annular outer baffle is 2 cm, and the height is 10 cm; the thickness of the annular inner baffle is 2 cm, and the height is 10 cm.

[0010] Preferably, the proliferation reef fixing plate is a plate-like structure made of cement concrete with a thickness of 2 cm; the top of the support plate is fixedly connected to the proliferation reef fixing plate, and the width of the proliferation reef fixing plate is equal to the width of the support plate.

[0011] Preferably, the number of algae proliferation reefs on each proliferation reef fixing plate is ≥4.

[0012] Preferably, there are two fractures which are symmetrically arranged.

[0013] Furthermore, a method for growing Salmonella thunbergii comprises the following steps:

[0014] (1) using the algae proliferation reef to collect salvia thunbergii seedlings, and placing the algae proliferation reef after collecting seedlings in the high tide zone for temporary cultivation;

[0015] (2) Regularly measure the length of Salmonella thunbergii seedlings. When the seedling length is ≥10 cm, move the algae proliferation reef to the low tide zone.

[0016] Preferably, in step (1), a large reef is found in the high tide zone to form a pond area, and the algae proliferation reef after the seedlings are collected is directly placed in the pond area in the high tide zone for temporary cultivation. The depth of the pond should be greater than 1m.

[0017] Preferably, in step (1), in an area where ponds cannot be formed in the high tide zone or in a high tide zone with a muddy bottom, the algae proliferation reef after collecting seedlings is fixed on a proliferation reef fixing plate, and then placed in the high tide zone for temporary cultivation using a support plate, and the algae proliferation reef is kept horizontal by adjusting the height of the support plate.

[0018] Preferably, in step (2), when the bottom of the low tide zone is a rock reef, the algae proliferation reef or the algae proliferation reef separated from the algae proliferation reef is fixed to the rock reef using cement added with a quick-setting agent.

[0019] Preferably, in step (2), when the bottom of the low tide zone is a muddy bottom, the algae proliferation reef on the high tide zone beach is fixed on a proliferation reef fixing plate and placed in the low tide zone using a support plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] (1) The algae proliferation reef of the present invention is designed in a double-ring runway shape, which can enable the algae proliferation reef to achieve the maximum deposition area at the same height; and two fractures are opened on the inner ring to facilitate the formation of hydrodynamics inside the algae proliferation reef when waves move.

[0022] (2) At least four or more algae proliferation reefs are fixed on the proliferation reef fixing plate of the present invention, so that the entire algae reef system is stable due to gravity and will not move due to tides; the use of the support plate makes the surface of the algae reef system level and not easily buried by mud and sand, and can also ensure that there is more water storage in the algae proliferation reef.

[0023] (3) The height of the algae proliferation reef of the present application is 10 cm, which not only has low preparation cost and simple process, but also has sufficient hydrodynamics in the algae proliferation reef, a high sedimentation area, and is less affected by large waves; moreover, the algae proliferation reef of this height has sufficient water storage capacity and is not easy to dry up after low tide. The seaweed can still grow well and is not easily attached by cystic algae and water clouds.

[0024] (4) Since the early Salvinia seedlings are relatively delicate, the water dynamics in the high tide zone are not strong, and the ponds with a certain depth in the high tide zone can fully ensure that the Salvinia seedlings can resist the strong changes in temperature in the high tide zone and prevent the algae proliferation reefs from being carried away by the tide, therefore, the present invention places the algae proliferation reefs in the high tide zone for temporary cultivation after the seedlings are collected; while the low tide zone has sufficient water dynamics, there are fewer miscellaneous algae such as Enteromorpha and Cystella, and the water dynamics bring sufficient nutrients and dissolved oxygen, and can also reduce the invasion of animal organisms, which is suitable for the later growth and maturation of Salvinia algae. Therefore, when the Salvinia seedlings grow to 10 cm, the present invention moves the algae proliferation reefs to the low tide zone for continued proliferation.

[0025] In summary, the algae reef system of the present invention has a simple process and low preparation cost. By combining the environmental characteristics of the low tide zone and the high tide zone and the growth law of Salvinia thunbergii, the device is placed in the high tide zone for temporary cultivation until the seedlings reach a certain length after collecting seedlings, and then moved to the low tide zone for continued proliferation. It is found through use that the device has a high deposition area, the surface of the algae is clean, there is no cystic algae, water clouds, etc. attached, the algae is intact, and there is no trace of animal gnawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural schematic diagram of the Salvinia thunbergii proliferation algae reef system of the present invention;

[0028] Figure 2 for Figure 1 A top view of

[0029] Figure 3 for Figure 1 Right view of;

[0030] Figure 4 This is a schematic diagram of the enlarged structure of the algae proliferation reef;

[0031] Figure numerals: 1. Algae proliferation reef; 2. Proliferation reef fixing plate; 3. Support plate; 4. Annular outer baffle plate; 5. Annular inner baffle plate; 6. Water storage area I; 7. Water storage area II; 8. Fracture. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1-4As shown, a Salvinia proliferation algae reef system includes an algae proliferation reef 1, a proliferation reef fixing plate 2 and a support plate 3. The algae proliferation reef 1 is cylindrical, and an annular outer baffle plate 4 and an annular inner baffle plate 5 are provided on the upper surface of the algae proliferation reef 1. The inner surface of the annular inner baffle plate 5 is a water storage area I 6, and the water storage area II 7 is between the annular outer baffle plate 4 and the annular inner baffle plate 5. The double-ring runway design of the algae proliferation reef 1 can enable the algae proliferation reef 1 to reach the maximum deposition area at the same height. The annular inner baffle plate 5 does not completely close the water storage area I 6. Two fractures 8 are provided on the annular inner baffle plate 5. The two fractures 8 are symmetrically designed to facilitate the formation of hydrodynamics inside the algae proliferation reef 1 (i.e., between the water storage area I 6 and the water storage area II 7) when waves move.

[0035] The diameter of the algae proliferation reef 1 is 40 cm, the thickness of the annular outer baffle 4 is 2 cm, the height is 10 cm, and the thickness of the annular inner baffle 5 is 2 cm, the height is 10 cm. The height of the algae proliferation reef 1 has a great influence on the growth of Salvinia: if the algae proliferation reef 1 is too high, it is easy to cause insufficient hydrodynamics, and the preparation cost is high and the process is difficult; if the algae proliferation reef 1 is too low, it is easy to make the deposition area too small. When the waves are large, the algae proliferation reef 1 has a small effect on the hydrodynamics, resulting in excessive regional hydrodynamics; at the same time, seaweed is easy to grow in an area with a certain amount of water after low tide. If the height of the algae proliferation reef 1 is too low, it will cause less water inside, and it will be easy to dry up after low tide, and the seaweed will die easily. In addition, if the algae proliferation reef 1 has too little water, it will cause the water depth inside to be shallow, making the algae proliferation reef 1 easy to be attached by cysts and water clouds.

[0036] The algae proliferation reef 1 is fixed on the upper surface of the proliferation reef fixing plate 2. The long side of the proliferation reef fixing plate 2 is parallel to the wave direction, the end of the proliferation reef fixing plate 2 away from the waves is directly in contact with the beach, and the end of the proliferation reef fixing plate 2 close to the waves is erected on the beach through the support plate 3, that is, the support plate 3 is located on the wave-facing side. The proliferation reef fixing plate 2 is a plate-like structure made of cement concrete, with a thickness of 2 cm, and its length and width can be set according to the sea area environment. The number of algae proliferation reefs 1 fixed on the upper surface of each proliferation reef fixing plate 2 should be ≥4, so that the entire algae reef system is stable due to gravity and will not move due to the tide. The top of the support plate 3 is fixedly connected to the proliferation reef fixing plate 2, and the width of the support plate 3 is equal to the width of the proliferation reef fixing plate 2. According to the specific coastal angle, a support plate 3 of a suitable height is selected to keep the algae proliferation reef 1 on the proliferation reef fixing plate 2 horizontal, so that the sediment is not easy to bury the algae proliferation reef 1, and the algae proliferation reef 1 can have a larger water storage capacity.

[0037] Since the hydrodynamic force in the high tide zone is not strong, the seedlings of the algae proliferation reef 1 are relatively delicate in the early stage, and the ponds with a certain depth in the high tide zone can fully ensure that the seedlings can withstand the strong changes in temperature in the high tide zone, and prevent the algae proliferation reef 1 from being carried away by the tide. However, the algae proliferation reef 1 cannot be placed in the high tide zone for cultivation all the time, because the temperature in other areas of the high tide zone, except for the pond area, changes dramatically, which is not conducive to long-term growth, and the algae are not easy to mature. Moreover, in the high tide zone, other algae such as Enteromorpha and Cystella are easy to attach, affecting the growth of Salvia thunbergii, while in the low tide zone, because the hydrodynamic force is sufficient, these algae are less, and the hydrodynamic force brings sufficient nutrients and dissolved oxygen, and can reduce the invasion of animal organisms. Therefore, the present invention places the algae proliferation reef 1 in the high tide zone for temporary cultivation first, and then places it in the low tide zone for continued proliferation.

[0038] Example 2

[0039] A method for growing Salmonella thunbergii comprises the following steps:

[0040] (1) Place the algae proliferation reefs after collecting seedlings in the high tide zone for temporary cultivation.

[0041] Because the early sargassum seedlings are delicate and difficult to resist the scouring of big waves, a large reef is found in the high tide zone to form a pond area (the depth should be >1m), and the algae proliferation reef of Example 1 is used to collect sargassum seedlings, and then they are directly placed in the pond area of ​​the high tide zone for temporary cultivation. The water power of the high tide zone pond is not strong, and it is not easy to destroy the sargassum seedlings. At the same time, the algae proliferation reef is not easily carried away by the waves, and the larger water body in the pond area helps to resist the strong temperature changes.

[0042] If a pond of suitable specifications is not formed in the high tide zone or in the high tide zone with muddy bottom, the algae proliferation reef of Example 1 is used to collect salvinia seedlings, and then the algae proliferation reef after the seedlings are collected is fixed on the proliferation reef fixing plate, and the algae proliferation reef is kept horizontal by selecting the height of the support plate, and is placed on the beach of the high tide zone for temporary cultivation, and the wind and wave resistance of the algae proliferation reef is increased by using the proliferation reef fixing plate and the support plate.

[0043] (2) Regularly measure the length of Salmonella thunbergii seedlings. When the seedling length is ≥10 cm, move the algae proliferation reef to the low tide zone.

[0044] When the bottom of the low tide zone is a rocky reef: the algae proliferation reefs temporarily cultivated on the high tide zone beach are fixed on the rocky reef using cement with a quick-setting agent added; or the algae proliferation reefs temporarily cultivated in the high tide zone pond area are taken out, and the proliferation reef fixing plates are smashed along the gaps between the algae proliferation reefs to separate the algae proliferation reefs individually, and then fixed on the rocky reef using cement with a quick-setting agent added.

[0045] When the bottom of the low tide zone is muddy and sandy: fix the algae proliferation reefs on the high tide zone beach on the proliferation reef fixing plate, and use the support plate to place it in the low tide zone for proliferation.

[0046] Example 3

[0047] Implementation place: rocky reef substrate

[0048] The algae proliferation reef with Salmonella thunbergii seedlings attached was temporarily placed in a pond formed by reefs in the high tide zone with a maximum depth of 1.1m after low tide. The length of Salmonella thunbergii seedlings was measured after 2 months. The data are detailed in Table 1.

[0049] Table 1. Effect of temporary culture of Salvia thunbergii seedlings in high tide zone ponds

[0050]

[0051] It was found in the actual cultivation process that Salmonella thunbergii was mostly attached at the intersection of the annular (inner and outer) baffles and the bottom of the water storage area (I, II). Therefore, the design of the inner and outer double-layer annular baffles is compared with the single-layer design with only an annular outer baffle. On the basis of the same diameter, the double-layer design can provide Salmonella thunbergii with more attachment area.

[0052] The algae proliferation reefs that have been temporarily raised were taken out of the pond one by one and fixed on the reefs in the low-tide zone with cement added with a quick-setting agent. One month later, the surface of the algae was investigated and it was found that there was no cyst algae, water cloud, etc. attached to the algae. The algae were intact and there were no signs of animal gnawing. Although the length of the algae in the low-tide zone (reef bottom) did not grow as fast as in the high-tide zone (pond area), the diameter of the algae stem became thicker. After another two months, the algae matured and formed a reproductive stalk.

[0053] Example 4

[0054] Implementation site: silt bottom

[0055] The algae proliferation reef with Salvia thunbergii seedlings attached was fixed on a 1.8m long and 1m wide proliferation reef fixing board using a mixture of cement and accelerator. The proliferation reef fixing board was placed on the beach in the high tide zone (not in the pond area) using a support board for temporary cultivation. The length of Salvia thunbergii seedlings was measured after 2 months, and the data are shown in Table 2.

[0056] Table 2. Effect of temporary culture of Salvia thunbergii seedlings on high tide beach

[0057]

[0058] The non-pond area in the high tide zone has a muddy bottom. Because there is less water in the algae proliferation reef and the temperature changes greatly, the absence of pond conditions is more conducive to the growth of Salvia thunbergii. Therefore, it can be seen from Table 2 that after 2 months, the growth length of Salvia thunbergii in the muddy bottom is not as long as that in the pond.

[0059] The algae reef system with the reef growth plate was transferred to the low tide zone for growth. One month later, the algae were investigated and found to be clean on the surface, without cysts and water clouds attached, and the algae were intact without any signs of animal gnawing. The length of the algae in the low tide zone (muddy bottom) increased faster than that in the high tide zone (muddy bottom), and the stem diameter of the algae became thicker after cultivation in the low tide zone.

[0060] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A system for the proliferation of Salvia thunbergii reefs, characterized in that: It comprises an algae proliferation reef, a proliferation reef fixing plate and a support plate, wherein an annular outer baffle plate and an annular inner baffle plate are provided on the upper surface of the algae proliferation reef, a water storage area I is provided inside the annular inner baffle plate, a water storage area II is provided between the annular outer baffle plate and the annular inner baffle plate, and two fractures are provided on the annular inner baffle plate; the algae proliferation reef is fixed on the upper surface of the proliferation reef fixing plate, the long side of the proliferation reef fixing plate is parallel to the wave direction, an end of the proliferation reef fixing plate away from the waves is directly in contact with the beach, and an end of the proliferation reef fixing plate close to the waves is erected on the beach through the support plate, so that the algae proliferation reef on the proliferation reef fixing plate is kept horizontal; The algae proliferation reef is cylindrical, and the diameter of the algae proliferation reef is 40 cm; the thickness of the annular outer baffle is 2 cm, and the height is 10 cm; the thickness of the annular inner baffle is 2 cm, and the height is 10 cm; The fractures are symmetrically arranged.

2. The Sargassum thunbergii proliferation algal reef system according to claim 1, characterized in that: The proliferation reef fixing plate is a plate-shaped structure made of cement concrete with a thickness of 2 cm; the top of the support plate is fixedly connected to the proliferation reef fixing plate, and the width of the proliferation reef fixing plate is equal to that of the support plate.

3. The Salvinia thunbergii proliferation algae reef system according to claim 1, characterized in that: The number of algae proliferation reefs on each proliferation reef fixing plate shall be ≥ 4.

4. A method for growing Sargassum thunbergii, characterized in that: The following steps are involved: (1) using the algae proliferation reef described in any one of claims 1 to 3 to collect Salvinia thunbergii seedlings, and placing the algae proliferation reef after collecting seedlings in the high tide zone for temporary cultivation; (2) Regularly measure the length of Salvinia thunbergii seedlings. When the seedling length is ≥10 cm, move the algae proliferation reef to the low tide zone.

5. The method according to claim 4, characterized in that: In step (1), a large reef is found in the high tide zone to form a pond area, and the algae proliferation reef after the seedlings are collected is directly placed in the pond area in the high tide zone for temporary cultivation. The depth of the pond should be greater than 1m.

6. The method according to claim 4, characterized in that: In step (1), in an area where ponds cannot be formed in the high tide zone or in a high tide zone with a muddy bottom, the algae proliferation reef after collecting seedlings is fixed on a proliferation reef fixing plate, and then placed in the high tide zone for temporary cultivation using a support plate, and the algae proliferation reef is kept horizontal by adjusting the height of the support plate.

7. The method according to claim 5 or 6, characterized in that: In step (2), when the bottom of the low tide zone is a rock reef, the algae proliferation reef or the algae proliferation reef separated individually from the proliferation reef fixing plate is fixed on the rock reef using cement added with a quick-setting agent.

8. The method according to claim 6, characterized in that: In step (2), when the bottom of the low tide zone is a muddy bottom, the algae proliferation reef on the high tide zone beach is fixed on the proliferation reef fixing plate and placed in the low tide zone using a support plate.

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