JPH09224523A - Gathering place for fish - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the survival rate and growth degree of sea living creatures and also improve breeding efficiency by suppressing the propagation of marine plants, and to improve the productivity by increasing production per unit area. SOLUTION: At the concrete-formed gathering place for fish which is installed on the bottom of the sea by hardening fluid concrete, the concrete consists principally of soil as an aggregate and a soil hardening agent which hardens the soil. In the manufacturing process, what is called EM formed of powder of charcoal and a group of microbes is mixed with the fluid concrete and molded in a cup shape to provide a recessed part 1, and consequently the growth of seaweeds such as tangle and sea living creatures, e.g. shellfish such as an abalone and a wreath shell is accelerated to improve the survival rate and farming efficiency.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a fish reef for breeding marine organisms such as seaweeds such as kelp and shellfish such as abalone and whale.

[0002]

2. Description of the Related Art Generally, in the coastal waters where marine organisms such as kelp, abalone and turban shells, which become marine products such as shellfish, are harvested, various fish reefs are put in order to improve the breeding efficiency of these marine organisms. I try to improve the breeding environment. In addition, so-called "kindergarten" such as spores of kelp, eggs of shellfish, juveniles, etc. are artificially released for the purpose of securing a living amount or increasing a living amount. Conventionally, these fish reefs are manufactured, for example, by pouring liquid concrete into a mold and curing it. Then, for example, in the coastal kelp sea area, harvest is performed when the kelp spores have grown on the fish reef for about two years. In addition, for example, in shellfish such as abalone and turban shell, eggs and juveniles are settled on a fish reef and then grown, and then harvested in a timely manner.

[0003]

By the way, in this way, in the sea area where the fish reef is put, seaweeds such as minor seaweed and lime algae easily propagate on the surface of the fish reef after harvesting marine organisms such as kelp. , When these seaweeds propagate and their power increases, it becomes difficult for the juveniles to settle on the fish reef, and the subsequent yield decreases, and in some cases, the subsequent harvest of marine organisms cannot be expected. was there. Therefore, in the past, when the power of seaweeds increased, new fish reefs were put in again, and the cost was enormous accordingly. In addition, there is a demand to further increase the production amount per unit area and improve the productivity even in the sea area where the reproduction of seaweeds is small.

The present invention has been made in view of the above problems, and can improve the survival rate and the degree of growth of marine organisms by suppressing the reproduction of seaweeds and improve the reproduction efficiency. The point is to provide fish reefs that can improve productivity by increasing the amount of production per area.

[0005]

Means for Solving the Problems The technical means of the present invention for solving the above problems comprises a group of useful microorganisms in a concrete-made fish reef that is manufactured by hardening fluidized concrete and is installed on the seabed. A so-called EM is interposed. In this case, it is effective to mix the EM with fluidized concrete in the manufacturing process. Then, if necessary, charcoal powder and granules are mixed. In addition, if necessary, the above-mentioned concrete is composed mainly of soil as an aggregate and a soil hardening agent for hardening the soil. Furthermore, if necessary, asphalt waste material, which is a waste material of the asphalt mixture in the form of powder, is used as the aggregate of the concrete. Further, it is effective that the fish reef is shaped like a cup and provided with a recess.

[0006]

DETAILED DESCRIPTION OF THE INVENTION A fish reef according to an embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 (a) (b)
(C) shows the fish reef according to the first embodiment.
This fish reef F is made of concrete that is manufactured by hardening fluid concrete and is installed on the seabed. The fish reef F is formed into a quadrangular prismatic cup shape, and the recess 1 is formed on the upper side. The recess 1 is widened upward from the bottom surface 2, and the side surface 3 is formed to be inclined. Further, the side wall has a pair of through holes 4 communicating with the recess 1 and facing each other.
Are formed.

Concrete contains, for example, a so-called "masa soil" as an aggregate and a soil hardening agent for hardening the soil. As a soil hardening agent,
For example, the components shown in FIG. 2 are used. The ratio of masa soil to soil hardening agent is appropriately determined depending on the properties of masa soil. In this fluidized state, a so-called EM composed of a group of useful microorganisms and charcoal are mixed in a required amount. And in the molding frame,
This fluidized concrete is poured, cured for a required time and hardened, and then demolded to obtain a product.

The so-called EM (E
effective micro-organisms)
Is a group of microorganisms used in recent years for organic farming, livestock farming, garbage and wastewater treatment, and the like. In general, microorganisms are classified into, for example, resuscitation-type microorganisms such as photosynthetic bacteria, yeasts, lactic acid bacteria, and koji molds, and disintegrating microorganisms such as spoilage bacteria such as staphylococci, cholera bacteria, and Shigella bacteria. Are mainly composed of resuscitation-type microorganisms.

[0009] Specifically, EM collects microorganisms that are considered useful from all fields and, except for those that emit odors,
A group of microorganisms selected based on various experiments, such as selecting those that can survive in activated water, and selecting those that can be applied to soil to eliminate pests and increase the yield increasing effect. Under these conditions, five members belonging to the family of photosynthetic bacteria, yeasts, lactic acid bacteria, fermenting filamentous fungi (Koji mold), and gram-positive actinomycetes were finally left. The group was divided into ten groups, with over 80 species. In the EM, it is not necessary that all of these 80 or more species of bacteria be present. Instead, several species having different properties may be selected from each group and symbiotic.

For example, different types of aerobic microorganisms and anaerobic microorganisms are selectively mixed so that they can coexist to form a group of microorganisms, and these are cultured in a culture solution to form a liquid. Aerobic microorganisms include, for example, cyanobacteria, Azotobacter, Bacillus subtilis, actinomycetes, and the like, and anaerobic microorganisms include, for example, bifidobacteria, fermentative bacteria, sulfate-reducing bacteria, bacteroides, and photosynthetic bacteria.

Further, as the above-mentioned charcoal granules, for example, those produced by carbonizing raw wood chips by carbonization and burning are used. It is desirable to use a charcoal powder having a size of, for example, several centimeters to ten centimeters or less.

Therefore, when the fish reef F according to this embodiment is installed in the sea, a chain or the like is pulled through the through hole 4, and the fish reef F is lifted by a crane or the like and put in the sea. This fish reef F
In, the EM intervenes in the concrete to function. In this case, since the charcoal powder is mixed and the charcoal is porous, EM enters the charcoal and easily inhabits the charcoal. The function of this EM suppresses the reproduction of seaweeds, promotes the settlement of young larvae, improves the survival rate of living organisms, and improves the growth degree and reproduction efficiency.

The operation of the EM is as follows.
It is thought to be due to the function of M. That is, it is generally known that an excess of active oxygen causes various harms. However, it has been proved that EM has an antioxidant action capable of suppressing, eliminating and repairing the harm of the active oxygen. . The components that make up this antioxidant action are divided into two parts: one is an antioxidant produced by microorganisms, and the other is
One is considered to be magnetic resonance waves. For example, photosynthetic bacteria have the ability to produce substances having an antioxidant effect such as vitamin C and vitamin E, and can be visually observed under a microscope to produce waves.

These antioxidants and waves interact with each other to improve the environment of fish reef F and directly improve the growth of organisms. In other words, the antioxidants produced by microorganisms, the waves produced by microorganisms, and the waves produced by the elements of inorganic substances, all of which work in the direction of resuscitation in conjunction with antioxidants to enhance the antioxidant power of the organism itself. , Hard to rot or hard to die. Therefore, the ability to absorb nutrients becomes stronger and it grows well, and it does not give room for the reproduction of seaweeds. Further, it is considered that the hardening and the increase of the oxidizing substances are suppressed on the surface and the inside of the fish reef F, so that it is difficult for the environment to be favored by the seaweed, and there is no room for the seaweed to breed.

[0015] For example, in the case of kelp, the spores of kelp are harvested when they have grown for about two years after they have settled. In addition, for example, even in shellfish such as abalone and turban shell, eggs and juveniles are settled and then grown, and then harvested in a timely manner. In this case, the recess 1 is formed in the fish reef F. Living things such as shellfish will be received at the bottom, and can be easily seen from above, which facilitates harvesting. Moreover, since the side surface 3 is formed to be inclined, the harvesting is facilitated also in this respect.

Next, a fish reef F according to another embodiment of the present invention will be described. This is different from the above embodiment in the concrete component. In the concrete of this embodiment, the soil called "Masa soil" as an aggregate and an asphalt mixture used for roads, for example, have a maximum width of 13 m.
The asphalt waste material in the form of powder or m having a particle size of m or less is used, and the soil hardening agent for hardening the soil and the asphalt waste material is the main component. The ratio of the masa earth, the asphalt waste material and the soil hardening agent is appropriately determined according to the properties of the masa earth and the asphalt waste material.

Road asphalt mixtures are generally
For example, about 5 to 7% of asphalt (straight asphalt) is heated and mixed with an aggregate as shown in FIG. 3 and cured. Accordingly, the asphalt waste material is obtained by crushing a material composed of these components with a crusher or the like to form a powder. According to this fish reef F, in addition to the above-mentioned action of EM, since it contains an organic component of asphalt, it may function as a fertilizer and serve as a feed for the organism, further promoting the growth of the organism.

[0018]

EXAMPLES Next, examples of fish reef F will be described. The fish reef F is formed into a frame shape in the shape of a regular rectangular prism, and is set to L1 = L2 = L3 = 1 m. Its component is Masa soil: 372K, as shown in FIG.
g, soil hardening agent (Matsumura Integrated Science Research Institute "Stein"): 160 kg (40 kg / bag x 4 bags), charcoal powder and granules: 48 kg, EM (EM Research Institute "Saise EM1")
No. ”adjustment liquid): 20 kg. These components were mixed with water (about 200 kg) to obtain a fluid state, which was poured into a molding frame, cured and cured for a required time, and then demolded to obtain a product. The product weighed about 600 kg. As a result of placing this in the sea and observing the growth state of marine organisms such as kelp, abalone and turban shells, it was confirmed that the growth condition was remarkably good, and an increase in yield was confirmed. It was also confirmed that the reproduction of seaweed was suppressed.

In the above embodiment, the shape of the fish reef F is not limited to the above-mentioned one.
As shown in FIGS. 5 (a), 5 (b), and 5 (c), the shape may be appropriately changed such as forming a hexagonal prismatic cup shape. Further, in the above embodiment, the concrete is not limited to the above-mentioned components, and may be a mixture of sand and cement, for example, and may be appropriately changed.

[0020]

As described above, according to the fish reef of the present invention, so-called EM consisting of a group of useful microorganisms intervenes, so that seaweeds such as kelp, abalone and azalea can be obtained by the antioxidant function of EM. It is possible to promote the growth of marine organisms such as shellfish and improve the survival rate and reproduction efficiency. Therefore, the production amount per unit area can be increased and the productivity can be improved. Moreover, in addition to promoting the growth of marine organisms, it is possible to suppress hardening and increase of oxidants on the surface and inside of fish reefs, which makes it difficult for the environment to favor seaweeds. It is possible to prevent the growth of marine algae, and also to promote the growth of marine organisms, improve the survival rate and reproduction efficiency, and increase the production per unit area. The amount can be further increased and productivity can be improved.

Further, when EM is mixed with fluidized concrete in the manufacturing process, EM can be well dispersed, and the antioxidant function of EM can be uniformly exerted on the entire fish reef. Further, when the charcoal powder is mixed, since the charcoal is porous, it is possible to allow EM to enter the charcoal and make it easier to live.
The activity of M can be activated and the function of EM can be sufficiently exerted, and the growth degree and the reproduction efficiency of marine organisms can be further improved.

Furthermore, when an asphalt waste material body in which the waste material of the asphalt mixture is made into a granular form is used as the aggregate of concrete, it contains the organic component of the asphalt in addition to the action of EM. Since it functions as a fertilizer and may be used as a feed for living organisms, it has the effect of further promoting the growth of living organisms. In addition, when a cup-shaped recess is provided, the underwater organisms can be seen from above at the time of harvest and the underwater organisms can be received at the bottom of the recess, which facilitates harvesting. The effect is that you can do it.

[Brief description of drawings]

FIG. 1 is a perspective view (a), a plan view (b) and a vertical sectional view (c) showing a fish reef according to an embodiment of the present invention.

FIG. 2 is a table showing an example of components of a soil hardening agent used for fish reef according to an embodiment of the present invention.

FIG. 3 is a table showing an example of the components of the asphalt mixture used in the fish reef according to the embodiment of the present invention.

FIG. 4 is a table showing components of fish reef according to an example of the present invention.

FIG. 5 is a perspective view (a), a plan view (b) and a vertical sectional view (c) showing a fish reef according to another embodiment of the present invention.

[Explanation of symbols]

 F Fish reef 1 Recess 2 Bottom 3 Side 4 Through hole

Claims (6)

[Claims] 1. A fish reef, which is produced by hardening fluidized concrete and is installed on the seabed, in which a so-called EM composed of useful microorganisms is interposed. 2. The fish reef according to claim 1, wherein the EM is mixed with fluidized concrete in a manufacturing process. 3. The fish reef according to claim 1, wherein charcoal powder is mixed. 4. The fish reef according to claim 1, wherein the concrete is composed mainly of soil as an aggregate and a soil hardening agent for hardening the soil. 5. The fish reef according to claim 1, 2, 3 or 4, characterized in that as the aggregate of the concrete, an asphalt waste material body obtained by converting waste material of the asphalt mixture into a granular form is used. 6. The fish reef according to claim 1, wherein the fish reef is formed in a cup shape and is provided with a recess.