TW201531224A - Adhesion and growth facilitating material for egg of shellfish and larvae of shellfish, seedling collecting method and culture method for shellfish using the same - Google Patents

Abstract

According to the invention, an adhesion and growth facilitating material for eggs of shellfish and larvae of shellfish can be obtained. The adhesion and growth facilitating material for eggs of shellfish and larvae of shellfish includes: a net portion for separating undesired adhered substance from shellfish, an outer jacket material as an egg attaching portion, a ferrum supplying portion including leaf mold, carbon material and ferrum material. By setting up a structure where the carbon material contacts at least a portion of the ferrum material, the following advantages can be obtained: excellent economic efficiency, fast generating speed of nutrient sources, and extremely high and stable seedling collecting efficiency. In addition, a setting period to the environment can also be safely arranged without being constrained by the spawning period.

Description

Eggs of the shellfish and the growth promotion materials of the shellfish Shellfish seedling method and culture method using the same

The present invention relates to an egg that utilizes moderate supply of iron and hangs in a brackish water zone or sea to create a shellfish and an shellfish that are most suitable as an environment for shellfish seedlings (attachment) or growth sites. A growth promoting material, a shellfish seedling method and a culture method using the same are attached.

There is a saying that "the forest is the lover of the sea." The statement is a manifestation of the fact that the sea is activated by the iron inflow from the forest. However, although the realistic Japanese sea has the sixth sea area in the world, it has caused rocky-shore denudation due to iron deficiency, and the kelp has failed and the aquatic animals have failed. The reasons for this are various, but one of the reasons is that the iron inflow from the forest is insufficient.

On the other hand, there are seas on the earth where plants in the sea are not luxuriant. The sea area is rich in nitrogen or phosphorus, but the plant plankton does not increase, so there is a tendency for the chlorophyll concentration to be low. The main reason for the situation is that the iron content of the micronutrients is insufficient.

Therefore, the supply of iron can increase plant plankton, breed shrimp, oysters, and shellfish that are used as bait, and then propagate kelp or algae.

For example, in the case of oysters, oysters ovulate around the end of July to the end of August. Moreover, the oyster eggs temporarily released into the sea become young, but the oyster eggs or oysters are required to adhere to the sea while floating in the sea.

In order to capture the oyster eggs or oysters that are floating in the sea, the egg material widely used between oyster farming relationships is a scallop shell. In addition, although there are pottery or plastic, etc., there are few use cases. In addition, natural oysters are sometimes attached to the coast, rocky reefs, revetment concrete, and the like.

Here, the shell of the scallop is inexpensive and has a flat shape, which can effectively utilize the aquatic waste, and is natural or biologically safe. In addition, it has a large number of advantages such as easy disposal after use, and is therefore widely used. Moreover, it is used by suspending the shell of the scallop in water, and effectively utilizing the nature of the egg of the oyster or the attachment of the oyster to the shell.

As described above, the egg material for egg laying which is usually used as an oyster egg is a shell of a scallop. List the problems with their use.

(1) Freedom of shape.

(2) The cleanliness of the surface of the shell as an egg is important.

(3) It is not possible to selectively attach only oysters.

(4) The setting period is extremely limited.

In particular, as described in the above (4), the current situation is that the number of days in which the egg can be set is actually limited to several days in one year, and it is a long-term experience to determine the setting date, and if Exceeding the best date, the oyster's eggs are hopeless for about a year.

Further, as described in the above (3), in the conventional egg-like material, other attachments such as barnacles are also adhered. Therefore, if the barnacle or the like has an egg first, the existing egg-shaped material cannot be used. As an egg of oysters.

Further, in the case where the shellfish inhabits, the eggs of the shellfish or the young eggs can be grown and raised to the shellfish regardless of whether or not the shellfish is ovulated, and the site is only a very limited area. Moreover, shellfish eggs or young eggs are not only a long-term experience, but also special operations that cannot be achieved without the technique of laying eggs.

In addition, the ovulation of oysters is carried out when the water temperature is 23 ° C or more and additional storms, storms, storms, typhoons, etc. are applied to the external pressure of the oysters. Therefore, the setting of the egg material is mostly carried out in bad weather such as storms, and is accompanied by danger.

In addition, the shell of the scallop does not have the function of proliferating the plankton which is a bait of the oyster, actively attracting the egg or the baby of the shellfish, or promoting the growth of the attached young or shellfish.

Therefore, the development of the egg-like material of the shellfish having the dynamic function is the greatest expectation for the oyster breeder.

The present invention has been developed in view of the above-mentioned state of the art, and aims to provide an early attachment growth promoting material of shellfish eggs or shellfish, and a shellfish seedling method and a culture method using the same, the shellfish eggs or shellfish of the young Attached to growth promotion materials It has the following excellent characteristics: high safety, excellent economy, fast production of nutrient sources, high efficiency and stability of seed collection, and the setting period of the environment is not restricted by spawning period, and other than oysters. The desired attachment is easily removed.

The inventors and the like conducted various experiments in order to achieve the above requirements. Hereinafter, various experiments for finally completing the present invention will be described.

[The attachment of oysters]

The inventors and the like have noticed that in a brackish water lake (hereinafter referred to as Lake A), a growing oyster is attached to a carbon fiber fabric suspended from a raft. However, the attachment of oysters at that time was not reproducible and was extremely rare.

In addition, in the experiments in other sea areas (hereinafter referred to as Sea A), the same phenomenon was observed (almost the same period as the experiment). That is, the test tweezers were placed near the coast of the sea A, and the carbon fiber woven fabric was suspended, and the grown oysters were attached. However, the number of attachments is small and is considered to be an accidental phenomenon. The reason is that Lake A and Sea A have no reproducibility in the same place, and the number of attached oysters is also small.

In addition, oysters in nature are sometimes attached to revetment concrete or the like, and are considered to be caused by the same manner as described above.

Then, an iron supply material in which an iron material is added to a carbon fiber woven fabric from an oyster cultured scorpion in a squid squid (hereinafter referred to as Lake B) (developer of the inventor et al.: Japanese Patent No. 5370876) . Then, after about 8 months, obvious adhesion of oysters and growth thereof were observed on the surface of the iron supply material. Therefore, in order to obtain the reproducibility of attachment of oysters to carbon fibers, the same is performed again in the second year. suspension. After 14 months from the setting, the set sample was pulled up, and as a result, adhesion and growth of oysters were confirmed.

Moreover, in another bay water area (hereinafter referred to as Bay A), an egg test of oysters was carried out. The sample to be placed is the same as the iron supply material (the one in which the iron plate is inserted into the carbon fiber woven fabric) which is suspended from the oyster culture tweezers in the experiment in the lake B and confirmed to be attached to the oyster. The iron supply material was suspended at four locations in the bay A, but at this time, the attachment growth of the oyster was not found at all.

Therefore, the same sample was suspended in Bay A after one year and tried again. However, after the sample was set at the end of July, although the iron supply material was taken from the seawater every week for observation, no adhesion of the oyster was observed.

Therefore, the inventors and the like have studied the growth of oysters found in a certain brackish lake (lake B), and the growth of oysters found in bay A has been studied.

The water quality and natural conditions of the two are compared and shown in Table 1. In addition, the inventors and the like have described the water quality, the natural conditions, and the adhesion state of the oysters in other places that have been obtained so far in Table 1.

As shown in Table 1, Lake B is a brackish water lake, and the opening to the sea is only about 30 m. The flow of the lake is small, and the lake is almost stagnant. In addition, there is inflow of living drainage from around the lake, and Lake B is eutrophic. Therefore, Lake B often has a red tide. As can be seen, Lake B has a high concentration of plankton in the eutrophic state, so the growth rate of oysters is fast, and it grows to a level that can be shipped in about one and a half years.

On the other hand, Bay A is connected to the outer sea, and the tide flows violently. Even inside the raft, it is a place where the state of sea water flowing like a river is observed. Therefore, the hanging oysters for hanging culture are in a slanted position.

Although the ovulation of oysters was also confirmed in Bay A, due to the intense flow of seawater, the local oyster farming relationship said that the probability of adhesion of eggs or young children was extremely low. Alternatively, it is considered that although oyster eggs or young children are temporarily attached to the sample, the oyster eggs are peeled off due to the violent sea water flow, and as a result, no adhesion of oysters is observed.

In addition, the water environment of Sea A or Lake A where oysters are rarely found is different from Lake B and Bay A.

That is, the lake A is a brackish water lake, and in order to be close to the eutrophication state, there is a repeated ebb tide, high tide, or river water inflow, etc., and the lake water is often replaced. On the other hand, the sea area of Sea A is connected to the bay, and sea water often flows. Water quality and offshore Compared with the eutrophication, it is not eutrophication compared with Lake B.

In the case where the iron supply material is used, in order to keep the eggs or the oysters of the oysters in a state of constant adhesion, it is desirable that the peripheral flow of seawater or the like is small and the environment is close to the stagnant state, that is, due to the iron supply material. Various environmental conditions such as a sea environment with less sea water flow start to be complete, and effects such as eggs are obtained.

In other words, the experimental results indicate that the application site of the iron supply material developed by the inventors and the like is limited to a water area in which the flow of seawater is small and is likely to be retained, and is a water-rich water area in which oysters are fed.

Further, in the installation period of the iron supply material, it is required to reduce the adhesion other than the oyster as much as possible before the ovulation is to be performed. The reason is that, as the attachment on the shell of the scallop, in addition to the oyster, barnacles, or various kinds of bivalves, sea squirts, etc. which are not suitable for eating are also attached, but among them, eggs or young attachments of the shellfish which are useful are particularly useful. The barnacle is causing adverse effects.

Therefore, as a function required for the egg material, it is considered that the barnacle does not adhere, or the barnacle attached thereto is quickly peeled off, and the barnacle is separated from the oyster, but the iron supply material does not have such a function.

By summarizing the above, it is required that the egg-like material such as the cultured eggs of the shellfish is required to satisfy the following requirements.

(1) cheap

(2) Security

(3) attracting eggs or young animals floating in the water

(4) The eggs of shellfish or shellfish are easy to attach and are difficult to fall off.

(5) Promote the production of plankton as a bait and increase the concentration of plankton

(6) Barnacles or unwanted attachments are difficult to attach, or can be separated

(7) Easy disposal after use

(8) Degree of freedom with shape

(9) When it becomes a shellfish and ships, it is easy to remove it into a shell.

(10) easy to operate

The inventors of the present invention have made an effort to study the requirements of the egg material. As a result, first, in view of the expectation of the suction effect, it is thought that the fulvic acid iron which is most suitable as a nutrient source is produced. Then, in order to produce the iron fulvic acid, humus soil containing fulvic acid is selected.

Then, as a source of iron ions necessary for the formation of iron fulvic acid, the iron material is used to bring the iron material into contact with the carbon material.

In addition, it has been found that iron fulvic acid is formed by providing a mesh portion for separating the shell material or an unnecessary deposit with the shellfish, so that the eggs of the shellfish or the shellfish can be attached, regardless of the egg laying. The period can be set at any time, and there is also a growth promoting effect of the attached shellfish or an unattached peeling function of the attached matter; and the most effective and economical shellfish eggs and shellfish's young attachment growth promoting material can be obtained.

The present invention has been completed based on the findings and further research.

That is, the gist of the present invention is as follows.

A shell-like egg and an ornamental growth promoting material for shellfish, comprising: a mesh portion for separating an unattached attachment from a shellfish, and forming an outer layer of the egg portion. And an iron supply portion containing the humus soil, the carbon material, and the iron material, and the carbon material is in contact with at least a portion of the iron material.

2. The egg-like shellfish of the shellfish and the parental growth promoting material of the shellfish, wherein the iron material has an oxygen content of 1% by mass or less.

3. The shellfish egg according to the above 1 or 2, and the parental growth promoting material of the shellfish, wherein the iron material has an Fe content of 5% by mass or more.

4. The shellfish egg according to any one of the above 1 to 3, wherein the electrical conductivity of the carbon material is 10 ³ Ω by volume resistivity. Below cm.

5. The shellfish egg according to any one of the above 1 to 4, wherein the carbon material is selected from the group consisting of carbon fiber reinforced plastic, expanded graphite sheet, charcoal, graphite material, carbon. At least one of wood, bamboo charcoal, carbon fiber, and carbon-based conductive paint.

The egg-like egg according to any one of the above-mentioned items 1 to 5, wherein the outer cover material is a fabric selected from the group consisting of burlap, coconut fiber, and pilled fabric, having At least one of a fabric, a non-woven fabric, a mesh fabric, a towel, a knit and a woven fabric, and an electrostatically flocked fabric or an electrostatically implanted non-woven fabric.

The egg-like egg according to any one of the above-mentioned items 1 to 6, wherein the carbon material and the iron material are the center of the iron supply unit, and The humus soil is disposed on the periphery thereof.

8. The egg of the shellfish and the shellfish according to any one of the above 1 to 7. An artificial growth promoting material in which the iron supply portion is the center of the attached growth promoting material, and an outer covering material is disposed on the outer periphery thereof.

The egg-like egg according to any one of the above-mentioned items 1 to 8, wherein the net portion comprises a mesh selected from the group consisting of a stretchable mesh, a nodular mesh, a no-nodule mesh, and a molding. At least one of the nets.

A method for seedlings of shellfish, which suspends the egg of the shellfish and the young growth promoting material of the shellfish according to any one of the above 1 to 9 in at least one of the brackish waters and the sea. Carrying out young seedlings of shellfish eggs and shellfish.

A shellfish culture method, wherein the eggs of the shellfish and the shellfish of the shellfish are seeded by the method according to the above 10, and the shellfish eggs and shellfish according to any one of the above 1 to 9 are provided. It is cultured within the range of iron ion dissolution of the growth promotion material of the young growth.

12. The shellfish culture method according to item 11, wherein the net portion and the outer casing of the growth promoting material are partially cultured.

According to the present invention, since the length of the period in which the growth accelerating material is attached can be set, the growth promoting material can be placed in the sea at a time when the storm or the like is avoided. Therefore, the safety is high, and since it is obtained from an inexpensive material, the economy is excellent, and at the same time, The efficiency of seedling collection is extremely high, and even in areas where it was not possible to naturally harvest seedlings, it is also possible to provide eggs and shellfish for attachment to young children.

Further, according to the present invention, since the setting period of the growth promoting material is not produced The egg period is restricted, so the management of the period is extremely simple, and the shellfish can be cultured stably and smoothly.

Fig. 1 is a photograph showing a state in which carbon fibers exhibit an attracting action (clustering action) on shellfish.

Fig. 2 is a photograph showing the attachment surface of the exfoliated oyster to the carbon fiber fabric.

Figure 3 is a photograph of a carbon fiber fabric placed in a sea suspended.

Figure 4 is a photograph of a carbon fiber fabric after peeling off the shell.

Fig. 5 is a view showing an example of a shape of a mesh portion used in the present invention.

Fig. 6 (a) and Fig. 6 (b) are views showing the shape of the cage net portion used in the present invention.

Fig. 7 is a view showing the shape of a cylindrical net portion used in the present invention.

Fig. 8 is a view showing an example of a honeycomb structure used in the present invention.

9(a) and 9(b) are diagrams showing an example of a three-dimensional net used in the present invention.

Fig. 10 (a) and Fig. 10 (b) are views showing the structure of a growth promoting material according to the present invention.

Fig. 11 (a) to Fig. 11 (f) are diagrams for explaining stages of the growth promotion of the oyster of the present invention.

12(a) to 12(e) are diagrams showing an example of installation of an attachment growth promoting material according to the present invention.

Fig. 13 is a photograph showing iron (left) and charcoal particles (right) contained in the growth promoting material.

Fig. 14 is a photograph showing the appearance of the growth promoting material of the present invention.

Fig. 15 is a photograph showing an oyster attached to a net.

Figure 16 is a photograph showing an oyster wrapped around a net.

Figure 17 is a photograph showing a foot silk connecting oysters to shellfish on a sack.

Fig. 18 is another photograph showing a foot thread connecting oysters to shellfish on a sack.

19(a) and 19(b) are photographs showing the clams attached to the growth promoting material.

20(a) and 20(b) are photographs showing the bivalve attached to the growth promoting material.

Hereinafter, the present invention will be specifically described.

The present invention relates to an artificial growth promoting material for eggs and/or shellfish of a shellfish which replaces the previous egg-like material, and is characterized in that it comprises an outer casing material which is an egg portion and contains humus soil, carbon material and iron material. The iron supply unit and the mesh portion that separates the unnecessary deposit from the shellfish, and the carbon material in the iron supply unit is in contact with at least a portion of the iron material.

Further, in the present invention, the egg is involved, including the egg or shellfish of the shellfish, and the like. Further, in the present invention, the undesired attached matter refers to algae or the like in addition to barnacles or snails of mollusks, and refers to an anchor that interferes with oysters or clams and other edible bivalves.

Moreover, the growing egg and/or the young animal can be attached by the attached growth promoting material of the present invention, and is preferably an edible oyster or clam, but can also be Eggs and scallops such as scallops, red scallops, clams, mussels (fresh water), purple scallops, etc., which are attached to the foot by silk, are similar to oysters and the like.

In addition, the following description mainly describes an oyster or a clam, but the present invention exhibits the same effect if it is a bivalve having a foot and having an interlacing property with an outer casing.

[Attraction of shellfish by carbon material]

Carbon materials have the property of attracting shellfish. For example, the carbon fiber bundle is suspended near the lake shore of the lake A, and after the carbon fiber bundle is picked up 10 minutes later, the more the hand feels heavy, the smaller the shell (about 1 mm) is densely attached. The shells accumulate instantaneously when only the carbon fiber bundle is placed at the bottom of the lake. It can be seen that carbon fiber exhibits attraction to the shell (clustering effect). The state is shown in Fig. 1 in the photograph, and it can be seen from Fig. 1 that a large number of shells (in the figure, as in the case of a dark brown stone) are attached.

[With the attachment of the foot silk]

The oyster has a foot silk, whereby it can be firmly attached to the attached object. When the oyster attached to the carbon fiber woven fabric as the object to be attached is peeled off, the flaking sound is generated after the force is peeled off. It has such a firmness. Further, after observing the adhesion surface of the peeled oyster to the carbon fiber fabric, the torn carbon fiber fabric was observed. The state is shown in Fig. 2.

Further, even if the shell other than the oyster is a shell having a foot silk, it is confirmed by another experiment that the carbon fiber fabric exhibits strong adhesion.

Then, the carbon fiber fabric was hung in the sea A as described, and as a result, a large amount of shells adhered. The entire surface of a carbon fiber fabric of length: 5 m, width: 15 cm Shellfish and mollusks are densely attached without gaps (Fig. 3).

In Fig. 4 showing the carbon fiber woven fabric, although a part of the shell is adhered, the other shells are forcibly peeled off, so that the aggregate of the foot strands can be confirmed. According to the above Fig. 4, the foot silk is entangled like a non-woven fabric. In this case, it is observed that the shell adheres to the carbon fiber woven fabric and continues to grow while extending the filament to form a state of the foot pad. Therefore, it is understood that the carbon fiber woven fabric also has a function as a fixing material for the foot yarn of the shell, but as described above, when the water flow is fast, the adhesion is insufficient.

[Promoting growth of oysters or clams]

In order to promote the growth of oysters or clams, it is important to smoothly supply the plankton which is a bait, and supply only to a place where a nutrient source is required. Therefore, it is necessary to become a nutrient component of the source of plankton production. In addition, the source of nutrition must be safe. Therefore, in the present invention, iron fulvic acid is used as a nutrient source, and humus soil as a natural product is used as a raw material for producing a nutrient source.

The fulvic acid formed in the humus soil reacts with iron by a chelating bond to form iron fulvic acid. Minerals such as iron which are organically organically reacted with fulvic acid are absorbed from the roots of plants and exist as fulvic acid complexes in living organisms of plants and animals. In addition, fulvic acid dramatically increases its function by binding to iron and increases its absorption in cells.

In the present invention, since fulvic acid is present in the humus soil, the fulvic acid which is eluted is reacted with the metal only by disposing the rot leaves in the vicinity of the iron/carbon material, thereby efficiently producing iron fulvic acid.

[High density of plankton]

In order to increase the concentration of plankton in water, it is known to be effective in generating divalent iron ions which promote the formation of plankton in water. Therefore, the generation of plankton is expected to have divalent iron ions for a long time. However, ordinary divalent iron ions are rapidly oxidized to become trivalent iron ions, and further become iron hydroxide or iron oxide. Therefore, the inventors have developed an iron supply material containing humus soil, iron, and carbon material in order to generate long-lived divalent iron ions (Japanese Patent Laid-Open No. 2014-200213).

The iron supply material was hung on a oyster culture rafter in Yamada Bay, Iwate, and the concentration of plankton in the water of the scorpion of the suspended iron supply material and the scorpion which was not provided was measured. The concentration of plankton in the scorpion that suspends the iron supply material becomes high.

In the present invention, the iron supply material can be used.

[Material with a napped surface that can be interwoven with the oyster or cicada's foot silk]

The attachment of eggs of fish and shellfish to carbon fibers was confirmed based on various experiments to date. For example, squid raised in a sink is more likely to lay eggs on carbon fibers than water grass. In addition, although the carbon fibers provided in the lake C were found to have spawned a large number of fish, no spawning was found on the plants or other raw materials (nylon or polyester) present in the same place.

According to the experiments so far, although the eggs of oysters or the eggs of the oysters or the eggs of the clams or the young ones are found on the carbon fibers, they are not found on charcoal or graphite sheets. The case is caused by the surface shape of the carbon raw material. The carbon fiber is a very fine fiber, and even if it is a fabric, it has a pile, and an egg or a baby is attached thereto. On charcoal or other carbon materials, there is no fibrous fleece, so no egg or young adhesion is observed.

Therefore, as described above, the oysters observed in Bay A or Lake A The attachment of the seedlings occurred on the surface of the sack filled with charcoal/iron/humus soil. It is generally believed that the napping of the burlap fibers is significant and the eggs or young ones adhere due to the velvet.

The attachment of the shell is firmly adhered to the surface of the rock or the like in the water by a foothold called a "foot" formed by a tow. The front portion of the filament is a plaque comprising a water resistant paste which allows the shell to adhere to a hard surface.

Oysters or clams are also attached by the same foot. However, especially when young, the feet are thin and the number of articles is small. Therefore, the surface to which the growth promoting material is attached must be entangled and interwoven with the foot. Compared with a smooth flat shape, it is effective to have pile, fluff, and unevenness.

In addition, the shape of the shell is deformed by the oyster or the clam, and the state of the shell can be fixed without being peeled off and removed. Therefore, in order to attach oysters or clams, it is desirable to have a fiber raw material having a velmination and interlacing that can be entangled with the foot. In the present invention, in particular, a material having a function as the egg-removing portion is referred to as an outer covering material.

According to the above findings, the inventors succeeded in producing a functional material having a property of promoting the growth of plankton, and attaching oyster eggs or clam eggs, or oysters or clams to their young children. growing up. The functional material is obtained by adding charcoal (carbon material), iron material, and humus soil which can generate long-lived divalent iron ions to a sack, and then covering the periphery thereof by a net, which is an attachment according to the present invention. Growth promotion materials.

[attached growth promotion materials]

On the oyster cultured scorpion of the Bay A, the oyster is hoisted from the oyster culture Attached to the growth promotion material. The attached growth promoting material is configured to add charcoal, iron, and humus soil to a sack as an outer covering material, and then cover the periphery thereof by a net.

After 2 months, the growth promotion material was picked up, and as a result, it was confirmed that a total of 10 oyster shell seedlings were present in 3 of the 4 locations set and 3 of the 80 pieces. Even in the case of the bay A where the sea water flows intensely, it is confirmed that the oyster eggs or the young attachment grows by using the outer casing.

Further, from the experimental tweezers provided in the lake A, the attached growth promoting material of the present invention in which charcoal, iron, and humus soil were added to the sack and covered with a net was suspended. The attachment growth promoting material is the same structure as the attachment of the oyster shell seedling confirmed in the bay A. Then, after 1 month to 3 months, a new attachment growth promoting material was further hanged from the raft.

Four months after the suspension of the growth promotion material, all the growth promotion materials were picked up. Then, the most attached oyster was attached to the attached growth promoting material, but the attachment of oysters was also observed on the setting after one month. In the case of the present invention, the period of the attachment of the growth promoting material of the present invention has a period of a long leap compared to the period of the input of the existing egg-producing material of only a few days.

[Separation of barnacles and oysters]

As described above, barnacles or undesired attachments such as shellfish that are not suitable for eating are attached to the growth promoting material together with the oysters, but it has not been found that no attachments such as barnacles are attached, and only oysters are attached. Attached to the growth promotion material.

Therefore, in the present invention, a function of separating the barnacle and the like from the oyster is added. In other words, the separation of the barnacles and the oysters is performed using an undesired deposit attached to the outer side of the outer casing and a net for separating shellfish (oysters).

Here, the growth rate, shape, size, and adhesion mechanism of the barnacle and oyster are different from those of the substrate (pocket).

For example, the oyster grows faster than the barnacle, and the barnacle stays at a thickness of about 1 cm and a height of about 1 cm in two months after attachment. On the other hand, if there is no obstruction around, the oyster grows to 2 cm to 3 cm.

In addition, the oyster adheres to the substrate by the foot silk, but the barnacle adheres to the substrate by the calcareous secretion. Also, the adhesion to the substrate is larger for the barnacle. In the above case, it was confirmed that the oyster and the barnacle attached to the sack were taken out, and in the flow of the tap water, the oyster was removed only by gently swaying up and down, and only the barnacle was left.

Moreover, if there is an object that can fix itself in the vicinity, the oyster can be deformed and attached according to its shape.

Using the difference in this property, the inventors and the like placed a net on the outer side of the outer casing and passed through six stages described later, thereby successfully separating the barnacle from the oyster.

In addition, the spawning period of oysters is almost the same as that of barnacles. Therefore, if the growth promoting material is attached in advance before the ovulation time of the oyster, the barnacle will preferentially adhere, and then the eggs of the discharged oyster are hard to adhere to the growth promoting material. In this regard, the attachment growth promoting material is preferably placed before the oyster is about to lay eggs.

Next, the constituent materials of the present invention will be described separately.

[Construction of growth promotion materials]

The attachment growth promoting material of the present invention has the above-described functions, and includes a mesh portion for separating the undesired adhering matter from the shellfish, an outer casing material for the egg portion, and an iron supply portion containing the humus soil, the carbon material, and the iron material. Here, the relationship between the configuration and function of the attachment growth promoting material of the present invention is shown in Table 2. In addition, the symbols in the table mean ◎: maximal, ○: good, Δ: low in function, and ×: completely non-functional.

According to Table 2, the iron or humus soil originally has no shell attraction, egg adhesion, youth adhesion, and interlacing with the foot silk, but if a combination of humus soil, carbon material, and iron material is used, Features. In addition, it is understood that the outer covering material does not have a shell attracting effect, but the adhesion of the egg, the adhesion of the young, and the interlacing property with the foot silk are excellent.

Therefore, it is understood that all of the effects of the present invention, such as the attraction of the shell, the adhesion of the egg, the adhesion of the young, the interlacing property with the foot, and the proliferation of the plankton can be obtained.

[Iron Supply Department]

In the iron supply unit of the present invention, the humus soil, the carbon material, and the iron material are used as the main constituent materials, and if necessary, the shape-retaining material of the iron supply portion or the connection between the iron material and the carbon material can be maintained. Touching fixtures, etc.

In the iron supply unit, if the iron material is free from environmental pollutants, it can be used without problems even in steel or cast iron. Further, the shape of the iron material can be used without any problem even in any of a plate shape, a rod shape, a cylindrical shape, an angle material, an L-shaped steel, a granular shape, a powder shape, and a block shape.

In the iron material used in the present invention, when the oxygen content is 1% by mass or less and the iron component, that is, metallic iron, is contained, the material is not particularly limited, and may be an alloy containing Fe such as an iron-nickel alloy. If it is considered to be dissolved into the environment, it is most preferably pure iron.

Further, in the iron material containing metal iron used in the present invention, the Fe content is more preferably 5% by mass or more. The reason is that the amount of iron ions used to generate iron fulvic acid can be ensured.

Further, since the iron material used in the present invention is required to have a large contact area with the carbon material, it is preferable to have a plate shape and a cylindrical shape having a flat surface or a curved surface. It is especially good to use rod-shaped iron. Further, if the period is limited, a film-shaped iron plate can also be used.

On the other hand, the carbon material is preferably at least one selected from the group consisting of carbon fiber reinforced plastic, expanded graphite sheet, charcoal, graphite material, carbon material, bamboo charcoal, and carbon fiber, and a carbon-based conductive paint or the like may be used. , the material is not particularly limited, and may also include graphite structural carbon.

In other words, the carbon material may be appropriately selected in accordance with the elution amount or the installation place of the iron ions, and may be a fabric containing carbon fibers. However, when it is used in a sea area such as waves, durability is important, and therefore carbon fiber is desirable. Reinforced plastic. and, In the case of a sea area where the wave is not severely restricted, a carbon material sheet made of an expanded graphite sheet, or charcoal, graphite material, carbon material, bamboo charcoal or the like can be used. Further, a conductive rubber containing a carbon component or a paint containing graphite or the like can also be used. Further, when the carbon material is used, since the shelling ability of the shellfish to the carbon material is lacking, the shellfish attaching function of the outer covering material can be more effectively exhibited.

Further, the electrical conductivity of the carbon material used in the present invention is preferably 10 ³ Ω in terms of volume resistivity. Below cm. The reason is that it is easy to control the amount of elution of iron ions.

Further, the shape of the carbon material used in the present invention is not particularly limited as long as it can be in contact with the iron material. However, it is desirable that the contact area with the iron material is large, and therefore it is preferable to be larger than the powder or the granular shape. Plate shape, film shape.

Further, the humus soil used in the present invention is usually a humus soil of broad-leaved trees, and when added to water, if fulvic acid is produced, it can be used even if it is soil.

In addition, the humus soil is a soil of various sizes in the forest ecosystem where the organic matter produced by the plants in the aboveground part is turned into rot, deciduous, and fallen on the surface of the earth, and by using microorganisms such as bacteria or cockroaches. Animals are decomposed by biochemical metabolism (deciduous decomposition) and become soil-like, so they are not strictly soil, but are usually called humus or humus.

In addition, naturally occurring humus soils tend to be nitrogen-biased in many cases, but there are cases in which phosphoric acid or potassium is supplemented by activities such as cockroaches, other animal feces, or microorganisms. Further, in the artificially produced humus soil, the components were artificially adjusted, but there was no problem in use in the present invention.

Here, the leaf which is likely to become humus soil is a type of deciduous tree or broad-leaved tree which has few oils and is easy to be fermented, and leaves having a large oil content such as cedar and pine are difficult to become humus soil.

It takes about one year to two years to grow into a naturally formed humus soil, but in the case of artificial production, it is easy to ferment the environment using rice bran. Therefore, the period until formation is shortened to about 2 months. Further, the iron content in the humus soil was measured by the X-ray analyzer to measure the iron content in the purchased humus soil, and as a result, it was about 0.5% by mass.

Thus, the nature of the humus soil varies depending on the raw materials, the manufacturing method, and the traits, but it is important to select the best humus soil.

Specifically, the humus soil is preferably a moderately fermented leaf of a broad-leaved tree of thick fleshy leaves such as rice, barley, green peony, beech, eucalyptus, medlar, and chestnut tree. The state of use can be from the time of fermentation to the hand, and the degree of rapid dispersal is particularly good for the use of the deciduous family of the beech family such as scorpion and chestnut tree. Further, as the mineral component, iron, potassium, calcium, magnesium, or the like which is an essential element for the growth of seaweed is preferably contained.

In the humus soil with insufficient fermentation, the content of fulvic acid is small, and the effect of iron fulvic acid is small. On the other hand, when it is in a fully mature state, it is difficult to produce an anaerobic state, and the effect described below may be lowered.

In the present invention, iron hydroxide and/or iron oxide are formed by a reaction between a carbon material and an iron material, but it is desirable to remove the produced iron hydroxide and/or iron oxide. The reason is that iron hydroxide and/or iron oxide are present in the vicinity of the interface between the two, which hinders the contact between the two and hinders the reaction. Therefore, in the present invention, there is also an advantage that an anaerobic state is produced by using humus soil, and iron hydroxide and/or iron oxide are produced. Reduction, and efficiently removing iron hydroxide and/or iron oxide.

In the present invention, the arrangement of the humus soil is not particularly limited as long as the range of the iron ions generated by the iron material and the carbon material is reached, and in order to efficiently generate iron fulvic acid, it is preferable to use iron and carbon materials. As the center of the iron supply portion, humus soil is disposed on the outer periphery thereof.

In addition, it may be enclosed by a self-shrinking solid-binding material from the outer side of the humus soil. The reason is that, by setting it as the said structure, the iron material and the carbon material can be stably contacted all the time. Further, the fixing member in the present invention is preferably a mesh material formed of a mesh shape or a mesh made of nylon, and for example, includes a case where it is only stopped by a rubber band or is fixed by a nylon thread or the like.

The shape of the iron material and the carbon material at this time is not particularly limited, and it is particularly preferable that the iron material has a rod shape. The reason is that it can be firmly anchored.

Alternatively, it may be realized by filling an iron wire in a cylindrical bamboo charcoal or filling a wire in a concave portion of a half moon shaped bamboo charcoal.

[coating material]

The present invention has an outer covering material that becomes an egg (including a young attachment). The outer cover material is preferably a bag to which an iron supply material is added or a container to which an iron supply material is placed. In addition, there is no particular limitation on the function of an existing attachment site of eggs and shellfish which can be shellfish, and for example, burlap, coconut fiber fabric, pilling fabric, fabric with interfiber spaces, and non-woven fabric can be used. , mesh fabrics, towels, knits and knits, as well as electrostatically flocked fabrics or electrostatically implanted non-woven fabrics.

The outer jacket portion of the outer cover material is easy to adhere to the oyster eggs or the baby's attachment, and the foot and outer jacket portions must be interlaced. Therefore, the surface of the outer casing must not be a flat, smooth surface. Specifically, it must have a coarse structure, the structure has irregularities, the presence of fibers, the presence of fibers, and the like.

Suitable as a raw material of the outer casing part in the present invention is burlap (sack).

The reason is that hemp is a natural raw material, so it does not require disposal after use and is inexpensive. In addition, the hemp fiber has a large diameter, and the hemp fabric for manufacturing the sack has a twisted yarn and has remarkable fluffing. Moreover, the reason is that, depending on the manufacturing conditions of the woven fabric, a dense or woven fabric having a large number of voids can be produced.

Moreover, as a property of the sack used, the following examples are mentioned.

The size of the sack

Large; vertical: 60cm × horizontal: 36cm

Small; vertical: 49cm × horizontal: 31cm

Quality of the sack (including stitching)

Large; 249.7g

Small; 161.6g

The area of the sackcloth (including the seam allowance)

Large; vertical: (60 + 3) cm × horizontal: {(36 + 2) × 2} cm = 0.63m × 0.76m = 0.4788m ²

Small; vertical: (49 + 3 + 2) cm × horizontal: (31 × 2) cm = 0.54m × 0.62m = 0.3348m ²

Quality of linen per unit area

Large: 0.2497kg÷0.4788m ² =0.52kg/m ²

Small: 0.1616kg ÷ 0.3348m ² =0.48kg/m ²

Vertical and horizontal lines per unit area of burlap (relative to cloth)

Large; vertical line woven hole: 32 holes / 10cm, line: 64 pieces / 10cm

Horizontal line Weaving hole: 28 holes/10cm, line: 28 pieces/10cm

Small; vertical line woven hole: 32 holes/10cm, line: 65 pieces/10cm

Horizontal line Weaving hole: 31 holes/10cm, line: 31 pieces/10cm

The thickness of the line of burlap

Large; vertical line: 0.8mm~2mm, horizontal line: 1mm~2mm

Small; vertical line: 0.8mm~2mm, horizontal line: 1mm~2mm

Burlap thickness

Large: 1.2mm

Small: 1mm

Then, as a raw material of the outer casing part in this invention, the coconut fiber fabric is mentioned.

The reason is that coconut fiber is a natural raw material, so it does not require disposal after use, and it is inexpensive, and it is widely used for horticultural use, river engineering use, civil engineering use, etc., so it is easy for aquatic relations to accept. Raw materials. In addition, the coconut fiber has a large diameter, and the coconut fiber fabric uses a twisted yarn and has a remarkable fluffing. Moreover, the reason is that, depending on the manufacturing conditions of the woven fabric, a dense or woven fabric having a large number of voids can be produced.

Further, it is suitable as a raw material for the outer jacket portion, and has a woven fabric. The raising process is a process of scratching the surface of the cloth, and if necessary, the carding is made to match the direction of the pile, or the length of the pile is made uniform by shearing.

In addition, flannel or suede cloth (leather) is a representative fluffing product. Get a unique look or softness by raising hair. The feeling of fullness is obtained, and the effect of improving the heat retention property, or covering the structure of the thread or the cloth, or blurring the outline of the pattern fabric is obtained. For the purpose of making the cloth soft, there is also a case where the inner side is raised.

Further, as a raw material of the outer casing portion, there is a fabric having an interfiber space. A fabric is a fabric produced by combining a warp and a weft. Weaving methods are also various, but in particular, plain weave, twill weave, and satin weave, which are the basis of almost all fabrics, are called the three original tissues.

When the number of threads to be used is reduced at the time of fabric production, the structure becomes a thick structure, and if the number of used wires is increased, a dense structure is obtained. The coarseness of the fabric varies depending on the number of threads used and the number of turns. If the number of strips is large and the crucible is strengthened, it becomes a dense fabric.

Further, in the present invention, a fiber having a density (coverage factor) of about 70% to 99% is referred to as a woven fabric having an interfiber space.

In addition, it is suitable for the raw material of the outer casing portion as non-woven fabric. Non-woven fabric refers to a sheet-like person that does not entangle fibers. A cloth that is usually representative of a sheet is a textile that ties a fiber strand, but a nonwoven fabric refers to the use of heat. Mechanical or chemical action causes the fibers to bond or entangle to form a fabric. Broadly The words include felt made since ancient times.

Others suitable as raw materials for the outerwear have towels. Towels differ from other substances in water absorption or touch, and therefore most of them are cloths having a ring-shaped thin thread (loop) on the surface, and the base fabric is usually thick and airy.

When the towel is woven into the weft, the part of the warp (the pile thread) is loosened to form an annular portion in the cloth. Those who have improved heat retention, moisture retention, water absorption, or those with one side and two sides.

In addition, other suitable materials for the outer casing include knitwear or knitwear. The knitwear refers to a knitted fabric, a cloth, or a product using the woven fabric which is produced by knitting, and is often used for everyday clothing such as socks, underwear, gloves, and hats because of its excellent stretchability.

The woven fabric is a general term for knitting a soft and sturdy thread by the connection of a ring.

Further, in the present invention, it is also possible to use an electrostatically flocked fabric or an electrostatically implanted non-woven fabric, an artificial grass, or a planted hair on a wig base material.

[network]

In the present invention, as described above, in order to avoid the influence of the barnacle, the oyster is removed from the growth promoting material, and the net for separating the unattached attachment and the shellfish (or simply the net) (net portion) is provided. . The mesh is preferably a stretchable mesh, and the thickness of each of the wires constituting the mesh is 1 mm to 5 mm, and the mesh interval is about 0.5 cm to 5 cm.

Further, the net used in the present invention may also be used as follows.

That is, there is a space that is difficult to deform. The size of the space is preferably about 5 mm to 50 mm. The reason is that if the space is too small, the growth of the oyster is hindered, and if the space is too large, the separation effect from the barnacle is lowered.

Further, the material of the mesh is preferably polyethylene, Kelemon, Kylon, nylon, polyester, polypropylene, or the like.

Further, the shape of the specific mesh portion is preferably a shape such as a flat plate shape, a cage shape, or a cylindrical shape. (Refer to Figure 5 to Figure 7)

The net is roughly divided into a person who woven the wire and a plastic wire or rod.

The former has a nodule network (the makers who link the knots of the net. The current mainstream is the link method called "frog leg shape support") and the no-nodule net (the makers who combine the knots of the net together. It is difficult to cut, lightweight and small in size.

The latter has a forming web (extruding the resin, forming it into a mesh shape by stretching, etc.).

In the present invention, as the net, a forming net is preferably used.

For example, it is Triical Net (manufactured by TAKIRON CHEMICAL Co., Ltd., registered trademark).

Further, in the present invention, as the net, a three-dimensional net having an expansion in a three-dimensional space can also be used. The separation effect of the oyster and the barnacle can be increased by appropriately selecting the size or height of the three-dimensional net.

In terms of strength, the three-dimensional net is also preferably a honeycomb structure as shown in FIG.

[Example of stereo network (I)]

The three-dimensional net is used as a foundation stabilization aid in civil engineering. Honeycomb structure material specifically for DuPont (Dupont) The company aims to stabilize the foundation and development of special non-woven fabric made (Grande net (GroundGrid ^TM) (registered trademark)). Grande material web (GroundGrid ^TM) is: a polypropylene nonwoven fabric tie Wan (Xavan) R (registered trademark), three-dimensional honeycomb structure in which the tie strip Wan (Xavan) R overlap when expanded to The lattice structure is formed by a honeycomb structure that is fused by dots.

[Example of stereo network (II)]

There is a three-dimensional net used as a bedding or a mat (see Figs. 9(a) and 9(b)). It is used for preventing the use of acne in bed-ridden patients and for the dispersion of body pressure at bedtime. The net can also be used as the net of the present invention.

Further, by arranging the fibers in the three-dimensional space in which the functionality is improved, the separation effect between the oysters and the barnacle can be improved.

[Structure of the network]

The structure of the mesh as described above is defined by the size of the hole spacing, the thickness of the wire, and the cross-sectional shape of the wire. However, the size of the hole spacing suitable for the present invention is about 1 mm to 100 mm, and the thickness of the wire suitable for the present invention (diameter) It is about 0.5 mm to 2.8 mm, and the cross-sectional shape of the wire suitable for the present invention is not only circular, angular (tetragonal, hexagonal, pentagonal, etc.), but also has embossing in which oysters adhere and the adhesion strength is improved. Shaped shape.

Further, the profiled shape has the same shape as the profiled bar used as one of the structural materials for the building. The deformed shape has a rod shape in which protrusions called "ribs" or "knuckles" are provided on the surface, and a coil-shaped shaped coil rod is also wound.

Further, the thickness of the three-dimensional net can be preferably used in the range of about 5 mm to 10 cm, and it is particularly preferably about 2 cm in consideration of the growth state of the oyster and the barnacle.

[The structure of the growth promotion material attached]

A representative structure of the attachment growth promoting material according to the present invention is shown in Fig. 10 (a) and Fig. 10 (b). According to the attached growth promoting material of the present invention, in order to continuously dissolve iron, the carbon material is brought into contact with at least a part of the iron material, and further has eucalyptus soil to which fulvic acid is supplied. Further, if the humus soil is in a range in which iron ions generated from the iron material and the carbon material reach, the installation position is not particularly limited (an example is shown in Fig. 10(b)), and in order to efficiently generate iron fulvic acid, it is preferably As shown in Fig. 10 (a), the iron material and the carbon material are placed at the center of the iron supply portion, and the humus soil and the outer casing are disposed on the outer periphery thereof.

The shape of the outer cover material to which the iron supply portion is added is desirably cylindrical and straw-shaped as compared with the flat plate shape. The reason is that the cylindrical outer casing material can increase the space portion as compared with the flat plate shape so that the influence of the surrounding inclusions on the grown oyster is reduced.

The net covering the outer covering material containing the sack is in a state of contact when it is set, but the net is lifted due to the growth of the oyster or the barnacle, and the gap is enlarged by leaving the sack. Indispensable is a net that can be deformed together with the growth of the attachment on the sack. The spacing between the sack and the mesh is desirably such that a gap of about 2 cm is eventually produced.

[Oyster's attachment growth promotion mechanism]

According to the observations obtained by the experiment, the adhesion growth promoting mechanism of oysters and the separation of barnacles from oysters were examined in the following manner. That is, it is considered that it depends on the six stages shown in Figs. 11(a) to 11(f).

Stage 1: Oyster eggs or close proximity to young (Figure 11 (a))

The ferric acid (iron ion) is eluted from the attached growth promoting material according to the present invention, and is used as a nutrient source to increase plankton. Then, plankton is further used as a nutrient source to promote the growth of oysters and promote ovulation from the end of July to the beginning of September.

Stage 2: Oyster eggs or young attachment (Fig. 11(b))

Eggs or oysters of oysters swim to the vicinity of the surface of the outer casing and adhere to the gaps of the outer casing, or the uneven portions, piles, and the like. The attachment site is considered to be a better place for oysters, but with the attachment of oysters, mollusks or algae such as barnacles are also attached. It is affected by the luxuriance of plankton caused by iron fulvic acid, and not only oysters, but also other shellfish (for example, bivalve), or barnacles, algae, etc. which are unnecessary deposits.

Stage 3: Growth of oysters (Fig. 11(c))

The oysters that are attached to the outer casing or the young ones that eat the bivalve will use the plankton that is increased by the effect of the iron-rich iron dissolved in the growth promoting material as a nutrient source, so that the growth is promoted, and the oysters are grown from young to young or Eat bivalve. At this time, the oyster or edible bivalve and the outer covering are fixed by the oyster or the bivalve, but the oyster or the bivalve's foot ribbon is adhesive and firmly adheres to the outer covering. On the other hand, the barnacle fixes the calcareous secretion as a bonding material to the outer casing.

Stage 4: Competing with the growth of barnacles (Fig. 11(d))

With the attachment of oysters, unwanted deposits such as barnacles are also attached, but they are affected by the luxuriant plankton caused by iron fulvic acid, not only oysters or bivalves, but also barnacles as unwanted attachments. Algae and so on also grow. At this time, the attached organisms compete with each other for growth.

Here, the oyster or the edible bivalve is attached to the outer layer or other attachment by the foot silk, but if the adhesion to the barnacle and the outer layer is small, the adhesion of the foot is small, so the oyster Or the bivalve is pushed to the vicinity of the outer periphery of the growth promoting material as the barnacle grows.

Stage 5: Attachment of oysters on the net (Fig. 11(e))

The oyster or the bivalve shell that is pushed to the upper part by the barnacle requires an attachable thing. If the foot silk starts to wrap with the net, the oyster or the edible bivalve is folded in its entirety and attached to the net, and so Grow into oysters or eat bivalve. In addition, shellfish are also attached to the net by the foot silk. Oysters or edible bivalves of this period can grow on the net by the foot silk even if they do not adhere to the outer casing due to growth. Further, the growth of oysters or edible bivalves is further promoted by the enrichment of plankton which is luxuriant due to the presence of effective fulvic acid.

Oysters or edible bivalves require a space for further growth and adhere to the outside of the net to grow. The barnacle grows on the inside of the net. In this way, the barnacle is separated from the oyster or the edible bivalve.

Stage 6: The situation in which the net is removed (Fig. 11(f))

The one-sided oyster grows on the net and grows on the opposite side. In addition, even if an unnecessary deposit such as a barnacle adheres to the net, it can be easily removed from the sea and can be effectively cultured for oysters or edible bivalves.

If it is further described in detail, after the oyster or the edible bivalve is slightly grown (wound around the net), the net portion is removed, and only the net is hung in the sea in the iron ion elution range to which the growth promoting material is attached. Oysters or edible bivalves, and vines Unwanted attachments such as pots are separated and effectively promote the growth of oysters or edible bivalves.

In addition, the edible bivalve attached to the net can be promoted by directly hanging in the sea in the range of iron ion elution in which the growth promoting material is attached, and can be moved to a cage or a crucible by simply removing it. In the container, it is suspended in the sea in the range of elution of iron ions to which the growth promoting material is attached, and promotes growth.

In this way, the net is a growth substrate such as oyster, and unnecessary deposits other than oysters (barnacles, non-food shellfish, algae, etc.) can be separated.

Moreover, the barnacle is usually firmly attached to the material, but contrary to expectations, the barnacle attached to the net can be easily removed. In other words, according to the results of the present experiment, even if the barnacle is temporarily attached to the net, it can be easily removed. Therefore, even if it is made of a culture cage such as an oyster, a hanging ear type or a long rope type, it can be appropriately picked up from the sea. The barnacle as an unwanted attachment is simply removed.

Therefore, new culture techniques can be provided by using a net as in the present invention.

[Example of setting up growth promotion materials]

Representative examples of the attachment growth promoting material according to the present invention are shown in Figs. 12(a) to 12(e).

The attachment growth promoting material according to the present invention can be provided in a plurality of shellfish culture cages as shown in Figs. 12(a) and 12(b).

Further, as shown in Figs. 12(c) and 12(d), the attachment growth promoting material according to the present invention may be provided in plurality around the mesh.

Moreover, the attachment growth promoting material according to the present invention is as shown in Fig. 12(e). Set outside the culture cage of shellfish.

In addition to the arrangement, the attachment growth promoting material according to the present invention can be effectively dissolved into the environment in the form of an iron complex by being disposed in at least one place in the brackish waters and the sea. In the water.

Further, the attachment growth promoting material of the present invention can be appropriately set such that the water depth is set, or the sea current, the optimum growth distance between the growth promoting materials, and the like are set.

Further, in the case of using the attachment growth promoting material according to the present invention, the hanging method in the sea, the culture sequence, the method of lifting the shell from the sea, and the like, the operating conditions or the order other than the above description may be based on the respective conventional methods.

In addition, by attaching the growth promoting material according to the present invention, the oysters of the temporary seedlings can be detached from the growth promoting material, or taken together with the outer casing as the egg, and attached to the growth promoting material. Nearby (refers to the dissolution range of iron fulvic acid attached to a growth promoting material). The reason is that, by the means, a new seedling can be carried out in the case where the growth promoting material (including the case where the outer casing is renewed to the iron supply portion) is attached, and the floating is effectively generated in the elution range of the iron fulvic acid. Biological, so the breeding efficiency is improved.

Example

[Example 1]

[Experimental site]

The experiment was carried out in a brackish lake with a circumference of 17 km. A scorpion (5m × 5m) is placed near the south bank of the lake and at a distance of 30m from the shore and a depth of 3m. The growth promotion material is attached to the oyster and the attachment of the oyster is investigated.

[Setting materials]

The attached growth promoting material is used to add the iron and carbon material contacts to the sack and to add additional sacks with at least added humus soil. The outer circumference of the sack is covered by a high-density polyethylene fishing net.

The following shows the standards and quality of each raw material.

The carbon material uses 1000 g of granular tailing charcoal.

The iron material was obtained by using a 1500 g end line (#21, a diameter of 0.8 mm, and a length of 30 cm). In addition, the iron material has an oxygen content of 0.1% by mass, a Fe content of 97.4% by mass, and a volume resistivity of 15 μΩ. Cm.

The humus soil is made of broadleaf trees made by about 6 liters (1,100 g) of arbor horticulture.

The sack is made by using the hemp produced in Bangladesh (manufacturer: Kumagai (share)). The size of a piece of sack is horizontal width: 30cm, vertical length: 50cm. The mass of one bag is 200 g, and the number of vertical and horizontal lines used is eight per 1 inch (2.5 cm). The mass per unit area of the burlap is 0.52 kg/m ² , and the diameter of the crepe line constituting the burlap is 0.8 mm to 2.0 mm.

The net is Triical Net (He Xilong (share), N29). Made of high-density polyethylene, it is made of plastic mesh with unwoven square holes. The mesh spacing of the mesh used was set to 25 mm x 25 mm. The color is black. The line is set to a line width of 3.8 mm, a line thickness of 3.2 mm, a horizontal line of a line width of 4.5 mm, and a line thickness of 2.9 mm. In addition, the shielding rate was 32%. In addition, the size of the net was set to a bag shape of vertical: 43 cm and horizontal: 35 cm.

A photograph in which the material used, that is, the iron material, the charcoal, and the humus soil used for the iron supply material are arranged on the sack used as the outer covering material, is shown in Fig. 13, and the appearance of the attached growth promoting material suspended from the raft to the sea, That is, a photograph in which iron, charcoal, and humus soil were added to one sack and the upper portion was tied and the mesh was placed on the side was shown in Fig. 14.

[experimental method]

On the first day of the experiment, one piece of growth promotion material was attached from the scorpion. Set the position to be 1 m below the water surface. Then, in the same order as in the case of the first day of the experiment, four novel growth promotion materials were suspended one month later, and four novel growth promotion materials were suspended two months later.

[Experimental results]

After three and a half months, the attached growth promoting material was picked up, and the adhesion of the oyster was confirmed. The most common oyster attached to the attached growth promoting material set on the first day of the experiment (Fig. 15). However, the attachment of oysters was confirmed on the growth promotion material which was set up one month later, and the growth promotion material which was installed after two months was confirmed.

In addition, after two weeks (week), the investigation was carried out again by picking up the growth promotion material suspended from the scorpion. Although only two weeks have passed since the previous time, the attached oysters have grown larger. In addition, the number of attached oysters has increased further than the previous one.

Then, compare the number of oysters attached to the net. If the number of oysters on the first day of the experiment is set to 100%, about 80% of the oysters attached to the growth promotion material set after one month are attached, even if the growth is set after 2 months. There are also about 20% of oysters attached to the promotion material.

After 96 days of setting, the attached growth promoting material set up from the beginning of the experiment to one month later was picked up and sent to the laboratory for further investigation in the laboratory.

Here, the mass of the growth promoting material attached was 16.4 kg (including moisture). In addition, it is 4.5kg before setting.

After comparing with the oysters attached to the net, it was observed that the oysters located on the sacks were small. Moreover, if placed in running water, the barnacle strongly adheres to the sack without peeling off, but the oyster is easily removed. In addition, oysters are directly attached to the sacks, and most of them are attached to the upper part of the barnacle and the net.

A portion of the net to which the oyster was attached was cut out, and the amount of oysters exposed on the surface of the net was measured. In the cut net (10 cm × 10 cm), 30 oysters were attached. The attached oysters vary in shape or size. The oysters attached to the net were taken from the net and the length, length and width of the oysters were measured.

The above measurement results are shown in Table 3. In addition, the measurable one is 16 of the 30 oysters attached. The reason is that the remaining 14 pieces were attached more firmly than expected when they were taken from the net, so the result of the hard peeling was broken and could not be measured.

According to Table 3, the average mass of the 16 oysters was 0.9 g, and the average size of the oysters was the longitudinal (length): 2.3 cm, and the width (width): 1.6 cm.

In the above embodiment, the oyster adhered to the net was attached to the mesh material (diameter: 5 mm, high-density polyethylene rod). If you want to take it off, there are more than half of the examples of oyster damage. The state of the oyster on the net is shown in Fig. 16. The black section at the upper center is the section of the net. The oysters attached to each other were found in the lower right part of the section, the lower part of the section, and the left side of the section. Thus, it can be seen that the oyster is deformed so as to be wrapped in the wire of the net, and is firmly attached.

Further, the number of oysters attached to the entire net was estimated from the attached oysters of the cut net. The size of the mesh used in the experiment was 43.5 cm in length and 35 cm in width. Therefore, even after attaching the growth promoting material one month later, about 800 oysters were attached on one side, and the total surface of the two sides was attached to about 1600. The result of an oyster.

In addition, the number of oysters attached to the growth promotion material set on the first day of the oyster-attached experiment was 1.25 times higher than that of the growth promotion material set after one month, and 1000 on one side. An oyster with 2000 oysters on both sides.

Here, a large number of large oysters are attached to the side surface portion to which the growth promoting material is attached. The reason is that the oyster or the barnacle is in a dense state, and the oyster cannot be grown in the central flat portion of the growth promotion material. On the other hand, in the place where the space portion of the side portion is large, the growth of the oyster is easy.

Then, five pieces were randomly collected from the oysters which were attached to the growth promoting material and grown, and the size and quality were determined. The measurement results are shown in Table 4.

According to Table 4, the maximum quality oyster was 2.2 g. The oyster is collected from the growth promoting material set up from the beginning of the experiment to one month later, so that the young floating in the water adheres and grows at this time, but the situation is in the seedling method of the shell using the scallop previously. A phenomenon that is completely undiscovered.

Further, when the web covering the growth promoting material is peeled off, the sack has an adhering layer having a thickness of about 2 cm. Among them, oysters are also present in large quantities together with barnacles, snails, and bivalves. The number of oysters is about 1,000 and the number of oysters is 2,000. Since 1600 oysters were attached to the net attached to the growth promoting material, after adding 2,000 pieces of the sack, 3600 oysters were attached to one of the growth promoting materials. In addition, it was estimated that 4,500 oysters were attached to the adhering growth promoting material provided on the first day of the experiment.

The number of estimated oysters per set month is shown in Table 5.

As can be seen from Table 5, even if the growth promoting material was provided two months after the start of the experiment, it was estimated that the adhesion of nearly 1,000 oysters was observed.

In addition, the state of the oyster attached to the sack was observed by a stereoscopic microscope. Fine linear fibers connect oysters from sacks or oysters to other attachments from oysters. The state is shown in FIGS. 17 and 18.

[Embodiment 2]

The attached growth promoting material of the present invention shown in Fig. 14 is hung on a rafter in the lake.

After 10 months, the attached growth promoting material was picked up and the contents were investigated. A large amount of clams were produced in the sample (Fig. 19 (a), Fig. 19 (b)). The clams of the clams produced in the autumn of the previous year entered the sacks with the growth promoting materials and grew into shellfish. The clams are entangled with hemp fibers.

The clams in the sacks are 138 as shown in Table 6. The average weight was 0.54 g (maximum 1.88 g, minimum 0.02 g), and the shell width was 1.4 cm (maximum 2.15 cm, minimum 0.73 mm). In addition, the appearance of the shell is various.

[Example 3]

A large amount of oyster adhesion was confirmed on the adhesion promoting material described in Example 1. Therefore, in order to carry out a more detailed study on the attached matter, one year and five months after the start of the experiment, the fish was picked up from the water, and the growth promoting material was attached to the net.

Not only did the web see the attachment of oysters, but it also saw the attachment of bivalves.

The bivalve has a small number of surfaces attached to the outer side of the net, and a large number is seen on the inner side (the side of the sack). The number of bivalves present on the inner side was about 15 in 10 cm × 10 cm, and the entire net was about 250. In addition, the growth promotion material peeling net was attached to the growth promoting material for about one and a half months, and the presence of oysters and barnacles was observed, but it was confirmed that there was no bivalve.

The adhesion state of the shell is shown in Fig. 20 (a) and Fig. 20 (b).

In the attached growth promoting material, the oyster is attached to the outside of the net in a large amount. On the side, the bivalve is heavily attached to the inside of the net. Although the name of the bivalve is unknown, it is considered to be a bloody one if it is estimated based on the shape or appearance.

If the phenomenon is examined, it is considered as follows.

That is, the eggs of the bivalve are attached to the sack together with the eggs of the oyster, and grow up through the young, but the barnacle is also attached to the sack. In addition, there is competition for growth between oysters, bivalves, and barnacles, but barnacles and sacks are firmly attached to grow. As a result, although the oyster or the bivalve was initially attached to the sack by the foot, the barnacle was extruded and peeled off from the sack to the outside of the growth promoting material. Here, it is generally considered that oysters need to move in a wide space in order to grow, and mainly adhere to the outer side of the net. In contrast, the double-shelled shell does not require space, and thus adheres to the inner side of the net.

Therefore, it is understood that by appropriately selecting the size of the pores of the mesh, not only separation from unnecessary deposits but also proper separation of oysters and shellfish can be achieved.

Further, by using the attachment growth promoting material of the present invention, eggs and/or babies of scallops, red scallops, clams, mussels (fresh water), scallops, and the like can also obtain the same growth promotion promotion as the above embodiment. effect.

Further, as another embodiment not described, for example, a carbon material is selected from a carbon fiber reinforced plastic, an expanded graphite sheet, a charcoal, a graphite material, a bamboo charcoal or a carbon conductive paint, or a fabric made of coconut fiber or a The woven fabric, the woven fabric having the interfiber space, the non-woven fabric, the towel, the knit, the woven fabric, and the mesh fabric are selected from the use of the outer covering material, and also have the same excellent egg-shelling egg or shellfish as the embodiment. The effect of growing young and promoting its growth.

Further, in the present invention, it is important that the carbon material is in contact with at least a part of the iron material, and the shape or contact form thereof can be appropriately changed depending on the actual installation conditions of the growth promoting material.

[Industrial availability]

By using the attachment growth promoting material according to the present invention, the safety is high, the economy is excellent, and the seedling efficiency is extremely high, and the unnecessary attachments can be easily removed, so that the region that was previously unable to naturally pick the seedlings can be used as the region. The attachment of eggs such as shellfish, and the cultivation of shellfish can be carried out extremely stably, safely and smoothly.

Claims (12)

An egg-like egg and an auxiliary growth-promoting material for shellfish, comprising: a mesh portion for separating undesired attachments and shellfish, an outer casing material for an egg, and an iron supply portion containing humus soil, carbon material, and iron material. And the carbon material is in contact with at least a portion of the iron material. The egg-like egg according to the first aspect of the invention, and the parental growth promoting material of the shellfish, wherein the iron material has an oxygen content of 1% by mass or less. The egg-like egg according to the first or second aspect of the invention, and the parental growth promoting material of the shellfish, wherein the iron material has an Fe content of 5% by mass or more. The egg-like egg according to any one of claims 1 to 3, wherein the electrical conductivity of the carbon material is 10 ³ Ω by volume resistivity. Below cm. The egg-like egg of the shellfish according to any one of claims 1 to 4, wherein the carbon material is selected from the group consisting of carbon fiber reinforced plastic, expanded graphite sheet, charcoal, and graphite. At least one of a material, a carbon material, a bamboo charcoal, a carbon fiber, and a carbon-based conductive coating. The egg-like egg according to any one of claims 1 to 5, wherein the outer casing material comprises an auxiliary growth promoting material selected from the group consisting of burlap, coconut fiber, and pilling. At least one of a fabric, a fabric having interfiber spaces, a nonwoven fabric, a mesh fabric, a towel, a knit and a woven fabric, and an electrostatically flocked fabric or an electrostatically implanted nonwoven fabric. The egg-like egg according to any one of claims 1 to 6, wherein the carbon material and the iron material are used as a center of the iron supply portion. And configuring the humus soil on its outer periphery. The egg-like egg according to any one of claims 1 to 7 and the parental growth promoting material of the shellfish, wherein the iron supply portion is used as a center of the attachment growth promoting material, and The outer cover is configured with the outer casing. The egg-like egg according to any one of claims 1 to 8 and the parental growth promoting material of the shellfish, wherein the net portion comprises a mesh selected from the group consisting of stretchable mesh, nodular mesh, no nodule At least one of a mesh and a forming mesh. A method for seedlings of shellfish, which suspends eggs of shellfish and shellfish growth promotion materials of any one of claims 1 to 9 in at least one of brackish waters and seas. Place to carry out the seedlings of shellfish eggs and shellfish. A shellfish culture method, wherein the eggs of the shellfish and the shellfish of the shellfish are prepared by the method according to the method of claim 10, as set forth in any one of claims 1 to 9. The egg-like eggs and the iron-ion elution range of the young growth-promoting material of the shellfish are cultured. The shellfish culture method according to claim 11, wherein the net portion to which the growth promoting material is attached is partially opened and cultured.