JP2001136861A - Carbon fiber-based artificial seaweed bed and carbon fiber-based artificial seaweed bed system made by combining plural kinds of carbon fiber-based artificial seaweed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject such artificial seaweed bed and its system that a microorganismal film is rapidly adheres thereto and thereby secondary microorganisms and small organism groups gather thereto abundantly and rapidly, resulting in a food chain containing young and grown aquatic organisms and serving as a spawning bed, thereby enabling continuous alternation of generations. SOLUTION: This artificial seaweed bed has artificial seaweeds based on carbon fiber; wherein the artificial seaweeds are characterized by that one end of at least one carbon fiber strand is fixed onto one side or both sides of each of plural positions situated 5-40 cm apart along the longitudinal direction of each of stringy or <3 cm-width band-like core materials positioned at specified spots at the bottom of the sea with bottom fixtures and also allowed to stand up underwater with floating bodies, and these carbon fiber strands at the respective positions mentioned above are dispersed underwater into a number of carbon fiber filaments so as to expand in a fringed fashion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial material for providing an environment for the growth of aquatic organisms such as fish, and more particularly, to an artificial algae mainly composed of carbon fiber, where aquatic organisms gather, hide, and lay eggs. Field of the Invention The present invention relates to a carbon fiber artificial algae field that forms a place, a feeding ground, a breeding ground, and the like, and an artificial algae field system that combines a plurality of types of artificial algae mainly using carbon fiber.
Such a carbon fiber artificial algae bed and a carbon fiber artificial algae bed system are not limited to the freshwater or seawater environment, and promote the reproduction of existing fish and the like.
It can be widely used in fisheries and aquaculture.

[0002]

2. Description of the Related Art Artificial algae, artificial fishing reefs, artificial breeding reefs, artificial egg-laying materials, and the like are conventionally known as artificial materials for providing a growth environment for aquatic organisms such as fish. Generally, synthetic resin molded products such as polypropylene are used as the material of the artificial seaweed bed having a plurality of the algae beds. Artificial algae using polypropylene having a specific gravity of 1 or less rise naturally when fixed to the water bottom. Also, some artificial seaweed beds for the sea use artificial seaweed in which the width of the foliage made of polypropylene is increased to withstand the tide. However, the artificial seaweed made of polypropylene having such a structure hardly fluctuates even with a slight flow or turbulence of water. Also, it is difficult to produce ultrafine fibers such as carbon fiber filaments with polypropylene.

In addition, various artificial fish reefs such as concrete, steel, and plastic are used in conventional artificial reefs. These are all large-scale structures, which are set up in the sea to aim for fish propagation. Also, since similar effects can be seen on sunken ships, there have been attempts to use sunken ships as artificial reefs as a method of treating abandoned ships. Especially recently, FRP
Because fishing boats are heavily used, there is an attempt to use them as artificial reefs after carbonization as a disposal method.

A large number of artificial reefs have been produced. Artificial reefs are widely used from migratory fish as target organisms to shellfish, sea urchins, shrimp, sea cucumber as sea root resources, or seaweeds that serve as hiding places and feeding places for them. Artificial breeding reefs are mainly made of steel, and show the function of seaweed beds as a whole structure.

Various products have been manufactured as artificial egg-laying materials. They are mainly synthetic resin molded products, and many products are mainly made of polypropylene or vinylon. As an artificial egg-laying material (egg algae) made of vinylon, there is "Kinran (trade name)" sold by Kuraray Co., Ltd. The egg-laying alga is made of a hydrophilic green-colored thread and can be freely changed in form, so that there are few restrictions on the installation place. In addition, it has the characteristics that it does not hurt the fish body because it becomes soft underwater, and it is effective in spawning, hatching, and early raising of Nigorovuna and moroko in Lake Biwa. In addition, in Gunma Prefecture Akagiyama Onuma, kinran is used as egg-laying material for public fish.

As mentioned above, the materials conventionally used as artificial seaweed beds and artificial reefs have been films, fibers, bands, nets, etc. made of synthetic resins. There were also concrete structures, steel products, and discarded ships. In addition, artificial egg-laying materials mainly consisted of natural products such as palm tree skin and vinylon. However, the artificial materials made of various materials as described above have a function of rapidly attaching microbial membranes, a function of rapidly and easily assembling secondary microorganisms and small organisms, and aquatic and grown underwater organisms. And did not have the function of forming a food chain and the function of forming a spawning bed.

The inventor of the present application has found that carbon fiber is particularly suitable as a material for an artificial product which provides a growth environment for aquatic organisms such as fish, and particularly as a material for an artificial algae, and is disclosed in Japanese Patent Application Laid-Open No. 8-266184. It was disclosed in. The reason why carbon fiber is particularly suitable as a material for artificial algae is that the main material is carbon, and because it is a microfiber, microorganisms attach quickly, so that a microbial membrane is formed early. In addition, carbon fibers have a high modulus of elasticity and thus can maintain a bulky shape, so that they maintain their activity for a long period of time and are likely to become small animals and fry homes.

The inventor of the present application has further conducted research on such artificial algae using carbon fiber as a main material.
We found that the spawning of Yoshinobori and public fish, etc., is different from that of fish and the like depending on the form of artificial algae, such as that of "fuzzy" artificial algae represented by low-density tufted artificial algae.

[0009]

SUMMARY OF THE INVENTION Therefore, the present invention has been made based on the above-mentioned findings, based on such findings, that an artificial algae mainly composed of carbon fibers is used to rapidly attach microbial membranes to secondary microorganisms and small organisms. Artificial algae beds and artificial algae bed systems that assemble in large quantities and rapidly assemble, form a food chain containing juvenile and grown aquatic organisms, form an egg-laying bed, and thereby enable continuous generation alternation. Artificial seaweed beds and artificial seaweed beds that are durable, versatile in form, have no environmental impact, do not dissolve or diffuse polluting contaminants, and are harmless to living organisms The purpose is to provide a system.

[0010]

SUMMARY OF THE INVENTION The present invention provides an artificial algae bed and an artificial algae bed system which advantageously solve the above-mentioned problems, and the carbon fiber of the present invention according to claim 1 is provided. The artificial algae bed is an artificial algae bed provided with artificial algae containing carbon fiber as a main material.In the artificial algae bed, as the artificial algae, a string-shaped or raised at a predetermined position on the water bottom with a water bottom fixture and raised into the water by a floating body or 5cm to 40 along the longitudinal direction of the band-shaped core material less than 3cm wide
One end of one or a plurality of carbon fiber strands is fixed to one or both sides of a plurality of locations at a distance of up to cm, and the carbon fiber strands at each location are dispersed in a number of carbon fiber filaments in water to form a tuft. It is characterized by having tufted artificial algae which are made to swell.

According to the test of the present inventor, a tufted artificial algae field comprising the tufted artificial algae mainly composed of carbon fiber is: (1) The microbial population is likely to adhere due to the rapid formation of a microbial membrane. (2) Microorganisms such as daphnia grow. (3) It becomes a feeding ground for crucian carp and public fish. (4) It becomes a spawning bed. It was confirmed that it had such a function.

That is, in this tufted artificial algae, the interval between the places where the carbon fiber strands are fixed is 5 cm to 40 cm.
The carbon fiber strands are swollen in tufts at each location by taking up a relatively large amount of carbon fiber filaments. Since the carbon fiber filaments are dispersed in a bulky manner, the tufted swollen carbon fibers (hereinafter referred to as "tufts") Prey on plankton while fry hiding and dive in the sea, protecting them from large enemy fish. Furthermore, a large number of fish eggs are laid at the places where the carbon fiber filaments are dispersed, and also exhibit excellent functions as an egg-laying bed. The lower the tuft density of each tuft, the higher the egg-laying rate.

Therefore, the tufted artificial algae can be in the form of a string or 3 cm.
Depending on the thickness, number of constituent strands, strand length, spacing between tufts, etc. of each tuft of carbon fiber, one end of which is fixed to a band-shaped core material (carbon fiber woven rope, polyester rope, etc.) with a width of less than The functions will be slightly different. Further, they are classified according to the material of the core material, the method of knitting, and the like.

[0014] The number of carbon fiber strands per one fixed portion (tuft) in the tufted artificial algae is preferably 2 to 20 in the case of a 12K strand. Among them, when the number of strands is 2 to 8, it becomes a low-density tuft, and when it is more than that, it becomes a high-density tuft. A tuft with a smaller number of strands spreads greatly in water and becomes bulky, resulting in more gaps, and more microorganisms adhere and spawn.
On the other hand, in a high-density tuft, bulkiness is not so recognized because there are few gaps inside. In addition, "1K"
Represents 1000 carbon fiber filaments.

The length of the tuft in the tufted artificial algae is preferably 15 to 40 cm. If the length is short, the fluctuation is small and the effect of artificial algae is small. On the other hand, if the length is too long, they are entangled with each other, and the fluctuation also decreases.

Further, the interval between tufts in the tufted artificial algae is preferably 10 to 40 cm. If this interval is short, mutual fluctuation is impaired. On the other hand, if it is too long, the density of the carbon fibers as a whole will be low, and the effect of the artificial algae will be reduced.

According to a second aspect of the present invention, there is provided a carbon fiber artificial algae bed according to the present invention, wherein the artificial algae bed is provided with an artificial algae containing carbon fiber as a main material. One of a total of 60K to 180K on each side of a plurality of strips with a width of 3cm to 8cm and a width of 2cm to 10cm along the longitudinal direction of the core material, which has been raised in the water by a floating body. It is characterized by comprising a centipede-shaped artificial algae in which one end of a plurality of carbon fiber strands is fixed and the carbon fiber strands at the respective locations are dispersed in a large number of carbon fiber filaments in water and flutter. It is.

In the centipede-shaped artificial algae field having the centipede-shaped artificial algae mainly composed of carbon fiber, one end is attached to a band-shaped core material (carbon fiber knitted woven fabric, polyester woven fabric, etc.) having a width of 3 cm to 8 cm. A large number of carbon fiber filaments dispersed from one or more carbon fiber strands of a fixed total of 60K to 180K produce a unique large fluctuation in water. If the width of the band-shaped core material is too narrow, the core material is twisted and the carbon fibers are easily entangled with each other, and if the width of the core material is too wide, the density of the carbon fibers is reduced and the effect of this artificial algae is reduced. .

Further, since the carbon fiber strands are fixed at a plurality of locations at intervals of 2 cm to 10 cm, the fiber density is generally higher than that of the tuft. If this interval is too short, mutual fluctuations will be impeded. On the other hand, if it is too long, the density of the carbon fibers as a whole will be low, and the effect of this artificial algae will be reduced.

According to the test of the present inventor, such a centipede-shaped artificial algae bed has the following characteristics. (1) The end of carbon fiber fluctuates greatly in water, and at the same time, the fiber density is high. Become. (2) It becomes a feeding ground and a hiding place for fry. (3) The tip becomes an egg-laying bed. (4) Since the core material is woven and wider than the core material of tufted artificial algae, a black bath is particularly preferred as a feeding ground because fry is easily aimed at from the root side of carbon fiber. It was confirmed that it had such a function.

In the centrifugal artificial algae, the number of carbon fiber strands per fixed portion is preferably 5 to 15 12K strands. The smaller the number of strands per location, the larger the gaps between the carbon fiber filaments, which greatly fluctuates in water, and increases the attachment of microorganisms and the spawning. On the other hand, when the number of strands is large, the fluctuation is hardly recognized due to a small internal gap.

In the centrifugal artificial algae, a carbon fiber strand flowing from each fixed portion (also for convenience,
The length is hereinafter referred to as "tuft").
When the length is short, the fluctuation is small and the effect of the artificial algae is reduced. On the other hand, if the length is too long, they are entangled with each other, which also reduces the fluctuation.

In a third aspect of the present invention, there is provided a carbon fiber artificial algae bed comprising an artificial algae containing carbon fibers as a main material, wherein the artificial algae is provided at a predetermined position on the water bottom by a water bottom fixing tool. Positioning and fixing one end of one or more carbon fiber strands at a plurality of locations along the longitudinal direction and circumferential direction of the mesh-shaped core material raised in the form of a cylinder underwater by a floating body, respectively, and It is characterized by comprising a cylindrical artificial algae in which each of the carbon fiber strands is dispersed and flutters in a large number of carbon fiber filaments.

In the tubular artificial algae bed having the tubular artificial algae containing carbon fiber as a main material, the fluttered carbon fiber functions as a gathering place for microorganisms and small organisms and as an egg-laying bed. Also,
The mesh-shaped core material that has been raised into a cylindrical shape can be made into a mesh size that allows small creatures and fry to enter, but does not allow adult fish to enter. Becomes a feeding ground and a hiding place for fry, and a hidden space for adult fish.

The core material may be formed by connecting a carbon fiber woven rope, a polyester rope, or the like in a mesh and cylindrical shape. In this case, the carbon fiber strands of the core material are dispersed and the spawning ground is formed. And so on. A plurality of carbon fiber strands may be stretched vertically so as to fill every other grid of the core material. In this case, the inside of the core material is hidden by the stretched carbon fiber strands and the carbon fiber The meshes that do not stretch the strands serve as entrances and exits connecting the inside and outside of the cylindrical core material, providing a better feeding ground and a hiding place for fry. The function of the cylindrical artificial algae can be adjusted by the diameter and length of the cylindrical core material, the mesh structure of the carbon fiber strands constituting the core material, and the like. Also, by increasing the number of carbon fiber strands to be fixed to the core material at each fixing point, the same function as that of the tufted artificial algae can be provided.

According to the test of the present inventor, such a tubular artificial algae is (1) a breeding ground for small organisms. (2) It becomes a feeding ground for fry. (3) It becomes a hiding place for fry. It was confirmed that it had such a function.

That is, the tubular artificial algae actually installed are:
The density of small creatures such as shrimp and small fish inside and around the cylindrical core material increased. In addition, since the inside of the cylindrical core material is isolated from the outside world, the initial growth effect of the fry is high, and it has effectively functioned as a hiding place for the fry from external enemies.

The diameter of the core tube of the tubular artificial algae is preferably 8 to 30 cm. If the size is too small, the growth of the fry is hindered, and if the size is too large, the adult fish easily penetrates.
The length of the core tube is preferably 12 to 50 cm. If the length is too short, the growth of the fry is hindered, and if the length is too long, the adult fish easily penetrates. For the same reason, it is preferable that the size of the mesh, which is a portion serving as the entrance of the fry, is 1 to 3 cm, and the number of meshes is 3 to 5 on the entire circumference.

According to a fourth aspect of the present invention, there is provided a carbon fiber artificial algae bed according to the present invention, wherein the artificial algae bed is provided with an artificial algae containing carbon fiber as a main material. One or more carbon fiber strands on one or both sides at a plurality of locations at intervals of 5 cm to 40 cm along the longitudinal direction of a cord-shaped or strip-shaped core material having a width of less than 3 cm in an enclosure positioned at a predetermined position on the water bottom A tufted artificial algae in which the carbon fiber strands at the respective positions are dispersed in a large number of carbon fiber filaments so as to expand into tufts by fixing one end of the tuft, and a strip-shaped core having a width of 3 cm to 8 cm One end of one or more carbon fiber strands of a total of 60K to 180K is fixed on both sides of a plurality of places at a distance of 2cm to 10cm along the longitudinal direction of the material, and the carbon fiber strands of each of the above places are fixed in water. But Is characterized in that it comprises passing at least one tension of centipede like artificial algae band as fluttering dispersed in several carbon fiber filaments.

In this shelf-shaped artificial seaweed bed mainly made of carbon fiber, a rigid material such as an iron pipe coated with vinyl chloride is assembled into a shelf, and an enclosure is formed with the shelf-shaped rigid material. The artificial algae stretched over tufted or centipede-shaped artificial algae, and it is possible to accurately determine the installation interval and position of the artificial algae stretched over a shelf-shaped rigid material. The feature is that it can be controlled precisely.

According to the test of the present inventor, such a shelf-shaped artificial algae becomes (1) a breeding ground for microorganisms, small organisms and fry. (2) It becomes a hiding place from foreign enemies. It was confirmed that it had such a function. In other words, the artificial artificial algae actually installed in the water provided a hiding place for fry and growing fish inside the enclosure, and exhibited a protective effect against black baths and the like.

It is preferable that the shelves of artificial algae have a height of 1 m or more and a width of 40 cm or more, and a net having an eye size of 1 cm or more is provided outside the enclosure. Is preferred.

On the other hand, the carbon fiber artificial algae bed system of the present invention according to claim 6 is an artificial algae bed system comprising a combination of a plurality of types of artificial algae mainly composed of carbon fibers.
As the artificial algae, a plurality of intervals of 5 cm to 40 cm along the longitudinal direction of a cord-shaped or band-shaped core material having a width of less than 3 cm, which is positioned at a predetermined position on the water bottom by a water bottom fixing device and raised in water by a floating body. One or a plurality of carbon fiber strands having one end fixed to one or both sides of the location so that the carbon fiber strands at each location are dispersed in water into a large number of carbon fiber filaments and bulged into a tuft in water. At a plurality of locations at a distance of 2cm to 10cm along the longitudinal direction of a strip-shaped core material with a width of 3cm to 8cm, which is positioned at a predetermined position on the bottom of the water with a water bottom fixture and raised in water by a floating body One end of one or more carbon fiber strands of a total of 60K to 180K is fixed to both sides of each of the carbon fiber strands. Centipede-shaped artificial algae dispersed and fluttered in elementary fiber filaments, and the longitudinal direction of the mesh-shaped core material, which is positioned at a predetermined position on the water bottom by a water bottom fixing device and raised up in water by a floating body in a cylindrical shape and A tubular shape in which one end of one or more carbon fiber strands is fixed at a plurality of locations along the circumferential direction, and the carbon fiber strands at each location are dispersed and fluttered in a number of carbon fiber filaments in water. Artificial algae and a shelf-shaped carbon fiber artificial algae field formed by a shelf-shaped rigid material and stretched over an enclosure positioned at a predetermined position on the water bottom,
One end of one or more carbon fiber strands is fixed to one or both sides of a plurality of places at intervals of 5 cm to 40 cm along the longitudinal direction of a cord-shaped or band-shaped core material having a width of less than 3 cm, and Tufted artificial algae in which the carbon fiber strands at each location are dispersed in a large number of carbon fiber filaments and swelled in tufts, and 2 cm to 10 cm along the longitudinal direction of a band-shaped core material with a width of 3 cm to 8 cm One end of one or a plurality of carbon fiber strands of a total of 60K to 180K is fixed on both sides of each of a plurality of locations at the intervals of, and the carbon fiber strands at each location are dispersed in water into a number of carbon fiber filaments in water. It is characterized in that it comprises a combination of at least one of an artificial centipede-shaped artificial algae and two or more artificial algae.

That is, the artificial algae mainly composed of carbon fibers have the above-mentioned characteristics depending on the form. Therefore, the artificial algae field, which is an aggregate of the artificial algae,
By effectively arranging the individual artificial algae, its function is further enhanced. In this case, depending on the purpose, an artificial algae bed may be created by collecting a single form of artificial algae, but an artificial algae bed system is constructed by combining a plurality of types of artificial algae, If they are arranged so as to exhibit their characteristics, the function of each artificial algae will be enhanced more and more, and as a result, microbial membranes will attach rapidly, and secondary microorganisms and small organisms will grow in large quantities and rapidly. To form a food chain containing young and grown-up underwater creatures, forming an egg-laying bed and promoting the reproduction of existing underwater creatures such as fish. A seaweed bed system can be realized.

For example, a tufted artificial seaweed bed is placed around the seaweed bed system to form microorganisms at an early stage, and to fix, adhere, and adsorb the microorganisms.
A centipede-shaped artificial algae field with an initial nursery effect suitable for the growth of hatched fry is installed inside, aiming at the growth function, promotion of spawning, and improvement of egg-laying rate, and further inside, fry and small fish It is preferable to set up a tubular artificial algae bed that can serve as a hiding place from large fishes that may become external enemies, and that can be shielded and protected, and a shelf-shaped artificial algae bed is provided at the innermost part. According to the artificial seaweed bed system having an artificial seaweed bed in such a combination and arrangement, as described above, the microbial membrane rapidly adheres, the secondary microorganisms and small organisms gather in large quantities and rapidly, and the young water A food chain containing living organisms and grown aquatic organisms is formed, forming an egg-laying bed, whereby an artificial seaweed bed system capable of continuously changing generations can be constructed.

In addition to the configuration of the above example, the combination and arrangement of artificial seaweed beds can be varied according to the topography, environment, geology, water volume, purpose, and the like. A seaweed bed system that can be used can be constructed.

The method of fixing the artificial algae in the present invention is a bottom-up start-up method, except when the artificial algae is fixed to a shelf-shaped artificial algae bed. In this method, one end of the core material of carbon fiber artificial algae is fixed to the water bottom with a weight or an anchor driven into the water bottom, and a floating body (float) is attached to the other end, and the core material itself is a lightweight floating body. In this method, the carbon fiber artificial algae is suspended in water to start up.

On the other hand, the method of floating a floating body on the water surface and suspending the carbon fiber artificial algae therefrom is always affected by the waves and wind on the water surface, and the fixed point fixation becomes large-scale. Also,
When the water surface freezes in winter, fixed point fixation becomes practically impossible due to the effects of freezing, drifting ice and wind. Further, when the ice is frozen, the floating body is pushed up by the ice and floats, and the artificial algae are raised from a desired depth, and there are many problems.

When the carbon fiber artificial algae is installed on the bottom of the water only by the bottom placing method, the artificial algae is buried in the sediment such as sludge on the lake bottom, and the tuft-like carbon fiber filament cannot exert the yuragi effect. .

The above-mentioned bottom-standing start-up method can be adjusted according to the depth and flow of the water environment in which the artificial algae is installed, the type of the target fish, the season, and the like. The specific gravity of carbon fiber is 1.
Since it is 7 g / cm ³ , by appropriately determining the size and buoyancy of the floating body, the carbon fiber artificial algae can be arranged near the water surface or can be submerged to a desired depth. For example, some fish have a main growth environment near the water surface, several meters below the water surface, or near the bottom of the lake.

Further, the present invention uses a carbon material having a function of forming a microbial membrane at an early stage and a function of multiplying a biofilm, and furthermore, since each carbon fiber filament is extremely thin, a carbon material having an extremely large surface area as a whole is used. The use of fibrous strands, as described above, leads to the rapid attachment of microbial membranes, the mass and rapid assembly of secondary microorganisms, small organisms, and a food chain containing juvenile and grown aquatic organisms. And has a function of being durable, having a variety of forms, having no environmental load, no melting and diffusion of polluting contaminants, and being harmless to living organisms. I do.

The filament of carbon fiber used in the artificial algae bed system of the present invention has a diameter of 7 μm and a tensile strength of 3 GP.
a, 235GPa elastic modulus is optimal, but diameter 15μm
According to preliminary studies by the present inventor, a tensile strength of 1 GPa or more and an elastic modulus of 100 to 400 GPa are sufficient for the purpose of the present invention. In other words, such a large elastic modulus forms a bulky structure in water and maintains the structure for a long period of time, and causes the carbon fiber to move like aquatic plants in water, which is caused by the adhesion of the tufts due to the jellyfish effect. This will help maintain the activity of the microbial community and secure a living space for small creatures and fry. In addition, the carbon fiber filaments as described above, for example, those having a diameter of 7 μm are manufactured by steaming an acrylic fiber at about 1200 ° C.
Further, those having a diameter of 15 μm can be manufactured by a known method, such as manufacturing by firing the pitch into a thread shape.

The carbon fiber strands are generally coated with a sizing agent for binding the carbon fiber filaments. In the present invention, the carbon fiber filaments need to be dispersed in water. Therefore, the sizing agent is removed by a solvent such as acetone or by passing through a flame. In addition, if a carbon fiber strand to which a water-soluble sizing agent is applied is used, it is not necessary to remove the sizing agent. In any case, it is necessary that the carbon fiber filaments can be freely dispersed without a sizing agent at the time of installation in water.

In the artificial seaweed bed and the artificial seaweed bed system of the present invention, the core material is preferably formed of a carbon fiber woven product. A carbon fiber woven product can be constructed in a two-dimensional or three-dimensional form by applying basic operations such as knitting, weaving, and bonding to a carbon fiber strand. Therefore, if the core material is made of carbon fiber woven product, it is durable, versatile in form, has no environmental impact, does not dissolve or diffuse pollutants, and is harmless to living organisms. Can be maximized. However, all or a part of the core material may be combined with other fibers or other materials other than carbon fiber according to the purpose, and in this case, the economy of the weaving operation is improved, More variety of shapes can be measured.

[0045]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, FIG. 1 shows three types of tufted artificial algae of type A to type C used in the first tufted artificial algae bed constituting the first embodiment of the artificial seaweed bed of the present invention, and one type of molding. FIG. 1 (a) is a type A tufted artificial algae, and FIG.
Fig. 1 (c) shows a type C tufted artificial algae, Fig. 1 (c)
(D) is a front view showing each of the mall-shaped artificial algae.
Here, reference numeral 1 in the figure denotes a tufted artificial algae, 2 denotes a tuft, 3 denotes a core material, and 4 denotes a malleous artificial algae.

The A-type tufted artificial algae 1 is configured as follows. Tuft 2 Number of carbon fibers Carbon fiber strands (12K) × 8 (96K in total) Length 20cm spacing 20cm Arrangement position Alternately put out on both sides of core material Core material 3 Number of carbon fibers Carbon fiber strands (12K) × 16 Book (total 192K) Thickness (diameter) 6mm Material Carbon fiber cord-like knitted fabric Tissue Weave

The type B tufted artificial algae 1 is of two types, Ba and Bb, and is configured as follows (in the figure, Ba-a).
Only shown). Tuft 2 Number of carbon fibers Carbon fiber strands (12K) x 16 (total 192K) Length Ba is 20cm, Bb is 35cm spacing Ba is 20cm, Bb is 30cm Arrangement position Ba Is on only one side of the core material, Bb is on both sides. Core material 3 Number of carbon fibers Carbon fiber strand (12K) x 16 (total 192K) Thickness (diameter) 6mm Material Carbon fiber woven knitted fabric Tissue Knitting Weaving However, in both the A type and the B type, the tuft 2 can be manufactured with a carbon fiber strand (6K to 24K) x 1 to 16 (total 6K to 384K) carbon fibers. , Length and interval can be arbitrarily set from 5 cm to 50 cm, respectively. The core material 3 can be knitted or woven of polyester fiber or a composite of it and carbon fiber.

The C-shaped tufted artificial algae 1 is configured as follows. Tuft 2 Number of carbon fibers Carbon fiber strands (12K) x 16 (total 192K) Length 30cm Spacing 30cm Arranged on both sides of core material Core 3 Thickness (diameter) 6mm Material Cremona rope (string) However, the tuft 2 can be manufactured with carbon fiber strands (6K to 24K) x 1 to 16 (total 6K to 384K), length and spacing. Can be arbitrarily set from 5 cm to 50 cm. The core 3 has a thickness of 3 mm to 6 mm.
It can be made up to carbon fiber or squid fishing line.

The mall-shaped artificial algae 4 is configured as follows. Tuft 2 Number of carbon fibers Carbon fiber strand (3K) x 1 (3K in total) Length 15cm (24cm on both sides) Interval density 15 / Core 1cm Placement position Core material 3 on both sides of core Diameter) 3mm Material Polyester woven knitted fabric Tissue Weave However, the length of the tuft 2 is 1.5cm to 12cm on one side (3cm to 24cm on both sides of the core material), and the spacing density is 15 strands of 3K. ~ 24 / core 1cm, 6K strands 8 / core 1cm,
It is possible to make four strands / core 1 cm on a 12K strand, and the core 3 can be made of nylon. In each of the A-C type tufted artificial algae 1 and the mall-shaped artificial algae 4, the lower end of the core material 3 is positioned at a predetermined position on the water bottom with a water bottom fixing device (not shown). 3 is pulled up by a floating body (not shown) so as to stand up in water.

FIG. 2 is a front view showing a tufted artificial algae 1 used in a second tufted artificial algal bed constituting a second embodiment of the artificial algal bed according to the present invention. The artificial algae 1 is configured on the basis of a tangled weave. The entangled weave uses polyester yarn for both the warp and the weft, and while weaving a tape-shaped woven fabric of a predetermined width by a shuttle loom, weaves one to several carbon fiber strands as wefts at predetermined intervals to form a core material. is there. Since the carbon fiber strands are continuously woven, the middle part is cut and pulled out and used in a cut-off state, but the carbon fiber strands remain continuous on one side where they are woven, so that the carbon fibers fall out. It is unlikely to occur. The distance between the drawn carbon fiber strands can be set freely, and the length is also 20cm
And 40cm is the standard, but can be adjusted arbitrarily. For the first embodiment, six types of tufted artificial algae 1 of type D to type I having the specifications shown in Table 1 below were produced.

[0051]

[Table 1]

These D-type to I-type tufted artificial algae 1 are configured as follows. Tuft 2 Number of carbon fibers Carbon fiber strand (12K) × 1 to 3 Length 20cm, 40cm Arrangement position Put out only on one side of the core material 3 Material Polyester tape-like (band-shaped) fabric Width 5mm However, tuft 2 comprises carbon fiber strands, preferably 12
K, but can be selected in the range of 3K to 48K, the length is 10cm
Can be set arbitrarily between ~ 50cm. The core material 3 can also be made of a heat-cuttable fiber other than the polyester tape, and its width can be arbitrarily set between about 5 mm to 150 cm. In each of the E-type to J-type, the lower end of the core material 3 is positioned at a predetermined position on the water bottom 6 by the water bottom fixing device 5, and the upper end of the core material 3 is pulled by the floating body 7 to be below the water surface 8. It is intended to stand up in the water.

FIG. 3 is a front view showing two types of centipede-shaped artificial algae 9 used in the centipede-shaped artificial algae field constituting the third embodiment of the artificial algae field of the present invention. The artificial algae has a tuft 3 formed by sandwiching a carbon fiber strand between a polyolefin resin film and a band-like material formed by interweaving polyester and cotton, which forms the core material 2. The bonding between the core material 2 and the tuft 3 is performed at 120 ° C. with the carbon fiber strand sandwiched between the strip material and the resin film.
The polyester material is melted by heating to a temperature of from 150 ° C. to weld the band-shaped material and the resin film to each other, and the carbon fiber strands are integrated with them.

The centrifugal artificial algae 9 is configured as follows. Tuft 2 Number of carbon fibers Carbon fiber strand (12K) Length a: 15cm on one side (35cm in diameter) b: 13cm on one side (29cm in diameter) Fiber density a: 50 / core 50cm b: 30 / core 50cm Position Put on both sides of the core material Core material 3 Width a: 5cm b: 3cm Material Cross-woven fabric of polyester and cotton Length 50cm However, the number of carbon fibers, length, fiber density, width of core material, etc. It can be changed arbitrarily within the stated range.
In each of the centrifugal artificial algae 9, the lower end of the core 3 is positioned at a predetermined position on the water bottom with a water bottom fixing device (not shown), and the upper end of the core 3 is pulled by a floating body (not shown) and It is made to stand up.

FIG. 4 is a front view showing a J-shaped tufted artificial algae 1 used in a third tufted artificial algal bed constituting a fourth embodiment of the artificial algal bed of the present invention. Tufted artificial algae 1
Woven one end of a core material 2 of a cord-like knitted woven fabric made of a carbon fiber strand in which filaments were gathered with water-soluble vinylon into a polyester upper core material 10, and pulled out a carbon fiber strand from a side portion of the core material 2. Things. When this tufted artificial algae 1 is put in water, the water-soluble vinylon of the drawn carbon fiber strand is dissolved, and as shown in FIG. 4, the carbon fiber filaments of each tuft 3 are dispersed in water. .

The J-shaped tufted artificial algae 1 is configured as follows. Upper core material Length 3m Tuft 2 Number of carbon fibers Carbon fiber strand (12K) × 2, 4 Length 25cm, 38cm (2 types) Interval 5cm Oriented alternately on both sides of core material or only on one side The J-shaped tufted artificial algae 1 is one in which the lower end of the core material 3 is positioned at a predetermined position on the water bottom with a water bottom fixing device (not shown). Build a simple structure and keep that structure for a long time. Because of the good dispersion of carbon fiber filaments, the adhesion of microorganisms such as daphnia is remarkably large. In addition, fry feeds on food and is excellent as a growth environment. And
Due to remarkable dispersion, it shows excellent properties as an egg-laying bed.

FIG. 5 shows two types of tufted artificial algae of type A and type B and one type of other molding used in a tubular artificial algae bed constituting a fifth embodiment of the artificial algae bed of the present invention. FIG. 5 (a) shows an A-type cylindrical artificial algae, and FIG.
FIG. 5B is a perspective view showing a B-shaped cylindrical artificial algae, and FIG.

The A-shaped cylindrical artificial algae 11 has a disc-shaped floating body (float) 7 made of styrene foam and having a diameter of 10 cm at an upper part thereof.
A cylindrical core material 3 made of a carbon fiber woven fabric woven in a mesh pattern (cross-girder shape) is arranged below the floating body 7. The carbon fiber woven product constituting the core material 3 is made of a warp (tube). The core-shaped core material 3 extends in the circumferential direction, which is the horizontal direction when the core material 3 stands up, and the nylon monofilament (210 denier) and the weft yarn (in the state in which the cylindrical core material 3 is raised, extends in the longitudinal direction which is the longitudinal direction). Are woven using carbon fiber strands (12K). The carbon fiber woven product of the illustrated example has a total length of 120 cm, carbon fiber strands are arranged in a grid pattern at intervals of 20 cm in the vertical direction, and have a reinforcing tubular woven fabric portion 12 at the upper and lower ends. . The length of the tuft 2 of the carbon fiber strand, the end of which is fixed to a nylon monofilament and made to flow in water, is 18 cm, and the number of tufts 2 is carbon fiber strand (12K) 100
It is a book.

That is, the A-type cylindrical artificial algae 11 is configured as follows. Floating body 7 Diameter 10cm Tuft 2 Number 100 100 Length 18cm Core 3 Warp Nylon monofilament (210 denier) Weft Carbon fiber strand (12K) Weave Basket weave (Nanako weave) Border planting Fabric part 12 Warp nylon Toray 840 denier 144 Nylon Uniplus 210 denier 288 weft carbon fiber Toray 840 denier Length (height) 8cm Overall length 1 step (120cm) However, any length can be manufactured.

The B-shaped tubular artificial algae 11 has a disc-shaped floating body (float) 7 made of styrene foam and having a diameter of 10 cm on the upper part, and a nylon mesh knitted in a grid shape (cross-girder shape) below the floating body 7. A core material 3 in which a net made of Tegus (each side is about 5 cm) is formed in a cylindrical shape is disposed, and a reinforcing tubular fabric portion 12 is provided at the upper and lower ends of the core material 3. 18cm long carbon fiber strand (12K) at the intersection where the nylon 3 of the core material 3 intersects
Were suspended at 60 locations, two at each location, distributed evenly in the circumferential and longitudinal directions of the core material 3. As shown in FIGS. 5 (a) and 5 (b), these A-type and B-type cylindrical artificial algae 11 also have the lower end of the core material 3 positioned at a predetermined position on the water bottom by the water bottom fixing device 5. is there. The artificial algae bed using these tubular artificial algae 11 is a place for hiding young fish and a place for escape from large fish. However, the adhesion of microorganisms was small, and the spawning status was also small.

The artificial algae 4 in the form of a mall shown in FIG. 5 (c) has a core material 3 formed by weaving carbon fiber strands into nylon tex, and the carbon fiber strands are pulled out to the left and right to disperse the filaments. It showed a unique movement like a centipede. The length of the tuft 2 like a centipede foot extending left and right from the core 3 is 20c on one side of the core 3.
m, 40 cm on both sides.

FIG. 6 shows a shelf-shaped artificial seaweed bed constituting a sixth embodiment of the artificial seaweed bed of the present invention.
FIG. 6 is a front view of the shelf-shaped artificial seaweed bed, and FIG. 6B is a side view of the shelf-shaped artificial seaweed bed. Here, the shelf-shaped artificial seaweed bed 13 of the embodiment constitutes the lower part of the artificial seaweed bed system,
The tufted artificial algae bed 14 forms the upper part of the artificial algae bed system, and these artificial algae beds have different roles.

The lower artificial shelter 13 is provided with a silk shelf-like rigid frame formed by connecting iron pipes coated with vinyl chloride on four sides of the front, rear, left and right, and connected to each other to form an enclosure (high). The basic structure is 15cm (200cm, 45cm in width, 50cm in depth), and a horizontal beam is placed in the middle of the enclosure 15 in the height direction. In the eight surrounding windows that face in the horizontal direction, four of the eight locations have the tufted artificial algae 1 stretched in the vertical direction, and the remaining four have stretched the tufted artificial algae 1 in the horizontal direction. , Four in the horizontal direction per location (total 16),
The number of vertical ones is three per one place (total 12).

The tufted artificial algae bed 14 (height 250 cm) on the upper part
It has a tufted artificial algae 1, and this tufted artificial algae 1
A carbon fiber strand (12K) having a length of 40 cm × 2 tufts 2 composed of two pieces are arranged on a core material 3 made of a carbon fiber woven knitted fabric at intervals of 10 cm in the same direction (one side of the core material 3). The previous Ba
It has a configuration similar to the mold. In this artificial algae bed system, the tuft-shaped artificial algae 1 is floated from the square of the lower enclosure 14 to the floating body 7.
A total of four tufts are set up to form the tufted artificial algae bed 14.

That is, the artificial seaweed bed system here is configured as follows. Shelf-shaped artificial seaweed bed 13 Enclosure Height 200cm, width 45cm, depth 50cm Horizontal tufted artificial alga 16 pieces 50cm in length Vertical direction tufted artificial algae 12 pieces 100cm in length Tufted artificial algae field 14 Tufted artificial algae Length 250cm Tuft Length 40cm Number of carbon fibers Carbon fiber strands (12K) × 2 Number of tufts 24 for each core 3 (96 for a total of 4 cores)

The following Table 2 shows a list of the characteristics of each carbon fiber artificial algae bed confirmed in the test described later. In Table 2, L indicates excellent, M indicates medium, and S indicates little effect.

[0067]

[Table 2]

Next, the results of an evaluation test of the artificial algae bed of each of the above-described examples as an algae bed and an egg laying bed will be described with reference to FIGS. 7 and 8. FIG. In this evaluation experiment, the artificial algae bed of each of the above examples was installed at the bottom of the test section 20 in front of Lake Haruna on the northern shore in the early spring, and the water depth at the installation point was 5 m. A first tufted artificial algae field 21, a second tufted artificial algae field 22, a third tufted artificial algae field 23, a centipede-shaped artificial algae field 24, a tubular artificial algae field 25, and a shelf-shaped artificial algae field 26 As shown in FIG. 8, artificial seaweed beds 27 were added and arranged in an annular shape. The tuft-shaped artificial algae 1, the centipede-shaped artificial algae 9 and the cylindrical artificial algae 11 are arranged in the bottom-up and start-up manner as described above, and
Was installed directly on the bottom of the lake.

The contents of the artificial algae bed of each embodiment are shown below. 1st tufted artificial algae field 21 A, Ba, Bb, C type tufted artificial algae 1 1 each Mall-shaped artificial algae 4 1 (5 total) 2nd tufted artificial algae field 22 D-I type tufted artificial algae 1 300 cm in length 5 3rd tufted artificial algae field 23 J-type tufted artificial algae field 6 Centipede-shaped artificial algae field 24 Centipede-shaped artificial algae 9 Core material width 5 cm , Foot length 15-20cm, Total length 200cm, 5 Tubular artificial algae field 25 Tubular artificial algae 11 Diameter 10cm, length 180cm (extended) 6 Tufts Carbon fiber strand (12K) 100 Shelf-shaped artificial algae Place 26 Bottom shelf artificial seaweed bed 13 (height 200cm, width 45cm, 1 piece) Upper tufted artificial seaweed bed 14 (height 250cm four)

The observation of the movement of the artificial algae underwater in the artificial algae bed in each of the above embodiments was performed by installing a video camera 28 near the artificial algae and connecting a cable to a monitor television 31 provided in a building 30 near the lake shore 29. I laid it. The artificial algae was installed at the bottom of the lake 30 m from the shore and 5 m deep. The position of the video camera 28 is at the center of the artificial seaweed bed arranged in a ring, at a position 30 cm away from each artificial seaweed bed, and 3.5 cm from the water surface.
m, 1.5 m from the bottom of the lake. Video camera 28
Was able to shake his head more than 360 degrees, but did not move up or down. Direct video from the video camera 28 was observed on the monitor TV 31 in the building 30.

Three weeks after the installation of the carbon fiber artificial algae bed, it was slowly moving with elasticity. Around each carbon fiber artificial algae, plankton gathered and seemed to be covered with white haze. At night, a lot of plankton gathered in the lighting lights. Small creatures such as shrimp were also seen. Artificial seagrass beds installed for comparison
27 artificial seaweeds made of polypropylene (5 cm wide, 2 m long)
Did not gather plankton. The phenomenon in which plankton aggregates was a peculiar phenomenon of carbon fiber artificial algae. Four weeks after the installation, plankton had increased further, and shrimp, small fish, and public fish began to gather.

Six weeks after the installation (45 days later), planks began to gather around the carbon fiber artificial algae like snow. In addition, crucians have begun to gather. We could observe the crucian swallowing plank and daphnia from the screen. The crucian sneaked into the carbon fiber artificial algae, shuffled in and out, and stuck on the surface deposits. further,
It was also observed that they were sucking carbon fiber artificial algae. The carbon fiber woven product and the artificial seaweed made of polypropylene showed clearly different behaviors. Plankton was gathered, and crane was gazing at it, confirming that carbon fiber was functioning as a seaweed bed.

Six weeks after the installation, a video camera was used to confirm that a large amount of eggs had been laid on the carbon fiber artificial algae. Then, the divers performed confirmation and collection work, and collected part of the tufted carbon fiber artificial algae. The number of eggs of the artificial algae was 40 (8/1 cm) in a length of 5 cm. Many other carbon fiber artificial algae also laid eggs. When the collected eggs were raised in an aquarium, they hatched one week later,
After that, they grew well. About one month later, these fish were examined by experts and found to be crucian carp. Four and a half months after installation, the large fish grew to 5 cm in length, and the small fish grew to 2 cm.

On the other hand, in the early summer of Lake Haruna, the laid eggs hatched and many fry were born. The fry entered and exited the carbon fiber artificial algae. Among various carbon fiber artificial algae, tubular and centipede-like are good, and fry pinches planktons fixed to these carbon fiber artificial algae,
When large fish approached, they hid inside the seaweed bed and dived. In addition, the shelf-shaped artificial algae bed also exhibited a preferable feature as a similar hidden place. The tubular and shelf-shaped carbon fiber artificial algae bed was a preferable structure as a hiding place for fry. Spawning occurred again at the height of summer and at the end of summer. In each case, the eggs hatched within a few days and no eggs were found. The carbon fiber artificial algae bed installed in the water continued to function as an egg-laying bed.

Further, in addition to the artificial algae bed of each of the above embodiments,
As shown in FIGS. 7 and 9, giant square tubular artificial algae 32 and 33 made of carbon fiber and nylon were placed in a place adjacent to the test section 20 where the video camera 28 was installed. This artificial algae had a square shape as viewed from above with each side being 4 m on each side, and a height of 3.6 m. The upper part of the square tubular artificial algae floated on the water surface, and the bottom part almost reached the bottom of the lake. This square tubular artificial algae was installed on the same day as the artificial algae bed system in each of the above examples.

Six weeks after the installation, spawning of fish was observed in the carbon fiber-made rectangular cylindrical artificial algae 32. From the top to the bottom of the square tube, eggs were laid on both the inside and outside. Upon closer inspection, there were three or more eggs. The number was probably over hundreds of millions. However, no eggs were found in the nylon prismatic artificial algae 33 used as a comparative sample. There was no inside or outside of the nylon square tube. On the other hand, there was no spawning on the aquatic plants growing around the square tube. Therefore, only the carbon fiber artificial algae bed was spawned, and it was proved that the carbon fiber was a suitable material for a fish spawning ground.

The artificial algae bed system of the present invention may be configured by combining two or more of the above four types of carbon fiber artificial algae in the vertical direction as in the case of the above-mentioned shelf-shaped artificial algae bed 13. By combining them well and in the horizontal direction, for example, the following various modes can be established. (1) Solar system type seaweed bed system The four types of artificial seaweed beds, the above-mentioned shelf artificial seaweed bed, cylindrical artificial seaweed bed, centipede artificial seaweed bed and tufted artificial seaweed bed, Those arranged in a ring in order, or those in which the order is changed. (2) Satellite-type seaweed bed system Out of the four types of artificial seaweed beds mentioned above, from the center to the outside, the above-mentioned shelf-shaped artificial seaweed bed, cylindrical artificial seaweed bed, centipede-shaped artificial seaweed bed, and tufted artificial seaweed bed The two or three types are arranged in a ring in that order, or the order is changed among them. (3) Lattice-shaped seaweed bed system All or two or three of the four types of artificial seaweed beds described above, namely, the shelf-shaped seaweed bed, the tubular seaweed bed, the centipede-shaped seaweed bed, and the tufted seaweed bed Those arranged in a line in order, or those with their order changed. (4) Cross-grained seaweed bed system All or two or three of the above-mentioned four types of artificial seaweed beds: the shelf-shaped artificial seaweed bed, the cylindrical artificial seaweed bed, the centipede-shaped artificial seaweed bed and the tufted artificial seaweed bed Those arranged in a combination. (5) Split type seaweed bed system All or two or three kinds of four kinds of artificial seaweed beds of the above-mentioned shelf artificial seaweed bed, cylindrical artificial seaweed bed, centipede artificial seaweed bed and tufted artificial seaweed bed, One that is arranged in a plurality of sections divided by a plurality of dividing lines extending radially from the center of the seaweed bed system, one by one or a plurality of sections.

FIGS. 10A and 10B show the above solar system as an embodiment of the artificial seaweed bed system of the present invention, in which four kinds of artificial seaweed beds are horizontally arranged in a ring so as to be sequentially surrounded. It shows two types of seaweed bed systems,
In these examples, the tufted artificial algae field having the above-mentioned tufted artificial algae 1 is arranged in the peripheral portion to form microorganisms at an early stage and to fix, adhere, adsorb, proliferate, spawn, and improve the egg-laying rate. Aiming at the inside, a centipede-shaped artificial algae field having the above-mentioned centipede-shaped artificial algae 9 having an initial nursery effect suitable for growing hatched fry is installed, and further inside, a fry or small fish etc. A tubular artificial algae bed with the tubular artificial algae 11 described above, which can serve as a hiding place from large fish that will be enemies and can be shielded and protected, and a shelf-shaped artificial algae bed 13 described above is installed in the innermost part of the center. are doing. In the embodiment shown in FIG. 10A, the outer peripheral shape of each artificial algae bed is rectangular, and FIG.
In the embodiment shown in (b), the outer peripheral shape of each artificial algae bed is substantially concentric.

According to the artificial seaweed bed system having an artificial seaweed bed in such a combination and arrangement, the microbial membrane rapidly adheres, the secondary microorganisms and small organisms assemble in large quantities and rapidly, and the seedling water A food chain containing living organisms and grown aquatic organisms is formed, forming an egg-laying bed, whereby an artificial seaweed bed system capable of continuously changing generations can be constructed.

Although the present invention has been described with reference to the illustrated examples, the present invention is not limited to the above-described examples, but includes embodiments that can be easily modified by those skilled in the art within the scope of the claims.
Needless to say, the present invention can be applied to underwater organisms other than fish.

[Brief description of the drawings]

FIG. 1 shows artificial algae used in a first tufted artificial algae field constituting a first embodiment of the artificial algal bed of the present invention, wherein (a) shows an A-type tufted artificial algae, (b) is a front view showing a B-type tufted artificial algae, (c) is a C-type tufted artificial algae, and (d) is a front view showing a mall-shaped artificial alga.

FIG. 2 is a front view showing a tufted artificial algae 1 used in a second tufted artificial algae field that constitutes a second embodiment of the artificial algal bed of the present invention.

FIG. 3 is a front view showing two types of centipede-shaped artificial algae 9 used in the centipede-shaped artificial algae field constituting the third embodiment of the artificial algae field of the present invention.

FIG. 4 is a front view showing a J-shaped tufted artificial algae 1 used in a third tufted artificial algal bed constituting a fourth embodiment of the artificial seaweed bed of the present invention.

FIG. 5 shows an artificial algae used in a cylindrical artificial algae bed constituting a fifth embodiment of the artificial algae bed of the present invention,
(A) is a perspective view showing an A-type tubular artificial algae, (b) is a B-type tubular artificial algae, and (c) is a perspective view showing another mall-shaped artificial algae.

FIG. 6 shows a shelf-shaped artificial seaweed bed constituting a sixth embodiment of the artificial seaweed bed of the present invention, wherein (a) is a front view of the shelf-shaped artificial seaweed bed, and (b) is a shelf-shaped artificial seaweed bed. It is a side view of an artificial seaweed bed.

FIG. 7 is an explanatory diagram showing locations for conducting an evaluation test of a carbon fiber artificial algae bed and a comparative test between a carbon fiber artificial algae and a nylon artificial algae of each of the above examples.

FIG. 8 is an explanatory diagram showing an implementation state of an evaluation test of the carbon fiber artificial algae bed of each of the above examples.

FIG. 9 is an explanatory diagram showing the state of implementation of a comparative test between the carbon fiber artificial algae and the nylon artificial algae.

FIG. 10 is an explanatory diagram showing a solar system type seaweed bed system as one embodiment of the artificial seaweed bed system of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tufted artificial algae 2 Tuft part 3 Core part 4 Mall-shaped artificial algae 5 Water bottom fixture 6 Water bottom 7 Floating body 8 Water surface 9 Centipede artificial alga 10 Upper core material 11 Cylindrical artificial alga 12 Textile part 13 Shelf artificial algal bed 14 Tufted artificial algae field 15 Enclosure 20 Test section 21 First tufted artificial algae field 22 Second tufted artificial algae field 23 Third tufted artificial algae field 24 Centipede artificial algae field 25 Tubular artificial algae field 26 Shelf-shaped artificial seaweed bed 27 Artificial seaweed bed 28 Video camera 29 Lake shore 30 Building 31 Monitor television 32 Square tubular artificial algae made of carbon fiber 33 Nylon square tubular artificial algae 34 Aquatic plants

Claims (7)

[Claims] 1. An artificial algae field comprising artificial algae mainly composed of carbon fiber, wherein the artificial algae is a string-like shape which is positioned at a predetermined position on a water bottom by a water bottom fixing tool and raised into water by a floating body. Fix one end of one or more carbon fiber strands to one or both sides of a plurality of places at intervals of 5 cm to 40 cm along the longitudinal direction of a band-shaped core material having a width of less than 3 cm, A carbon fiber artificial algae field, comprising a tufted artificial algae in which carbon fiber strands are dispersed in a large number of carbon fiber filaments to swell in a tufted manner. 2. An artificial algae field comprising artificial algae mainly composed of carbon fiber, wherein the artificial algae is positioned at a predetermined position on the bottom of the water with a water bottom fixing device and raised into the water by a floating body from 3 cm to 8 cm. Fix one end of one or more carbon fiber strands of a total of 60K to 180K on both sides of a plurality of places along the longitudinal direction of the band-shaped core material with a width of up to 2cm to 10cm, respectively, in water. A carbon fiber artificial algae field, comprising centrifugal artificial algae in which the carbon fiber strands at each of the locations are dispersed and fluttered over a large number of carbon fiber filaments. 3. An artificial algae field comprising artificial algae mainly composed of carbon fibers, wherein the artificial algae are positioned at a predetermined position on the water bottom by a water bottom fixing tool and are raised in a water-like shape by a floating body. One end of one or a plurality of carbon fiber strands is fixed to a plurality of locations along the longitudinal direction and the circumferential direction of the mesh-shaped core material, and the carbon fiber strands at each of the locations are formed in a number of carbon fiber filaments in water. Characterized by having cylindrical artificial algae dispersed and fluttering
Carbon fiber artificial algae bed. 4. An artificial algae field comprising artificial algae mainly composed of carbon fiber, wherein the artificial algae is formed of a rigid material in the form of a shelf, and is placed in a predetermined position on the water bottom in a string shape or 3 cm. One end of one or a plurality of carbon fiber strands is fixed to one or both sides of a plurality of places at intervals of 5 cm to 40 cm along the longitudinal direction of a strip-shaped core material having a width of less than one and the carbon at each of the above places in water is fixed. A tufted artificial algae in which fiber strands are dispersed in a large number of carbon fiber filaments and swelled in tufts;
2cm along the longitudinal direction of the band-shaped core material of width from cm to 8cm
60 on each side of multiple locations with spacing from
A centipede-shaped artificial algae belt in which one end of one or a plurality of carbon fiber strands from K to 180K is fixed, and the carbon fiber strands at the respective locations are dispersed in a large number of carbon fiber filaments in water and flutter. Characterized in that at least one of them is stretched over and provided. 5. The carbon fiber artificial algae bed according to claim 1, wherein said core material is formed of a carbon fiber woven product. 6. An artificial algae bed system comprising a combination of a plurality of types of artificial algae mainly composed of carbon fiber, wherein the artificial algae is positioned at a predetermined position on a water bottom by a water bottom fixing tool and is raised in water by a floating body. Cord or 3cm
One end of one or a plurality of carbon fiber strands is fixed to one or both sides of a plurality of places at intervals of 5 cm to 40 cm along the longitudinal direction of a strip-shaped core material having a width of less than one and the carbon at each of the above places in water is fixed. Tufted artificial algae in which fiber strands are dispersed in a large number of carbon fiber filaments and bulged in tufts, and from 3 cm to 8 cm, which are positioned at a predetermined position on the bottom of the water by a bottom fixing device and raised in water by a floating body One end of one or more carbon fiber strands of a total of 60K to 180K are fixed on both sides of a plurality of places along the longitudinal direction of the band-shaped core material having a width of Centipede-shaped artificial algae in which the carbon fiber strands at each point are dispersed and fluttered over a large number of carbon fiber filaments. One end of one or a plurality of carbon fiber strands is fixed to a plurality of locations along the longitudinal direction and the circumferential direction of the mesh-shaped core material which is raised into the water by a floating body in a tubular shape, and the above-mentioned respective locations in the water are fixed. A cylindrical artificial algae made of carbon fiber strands dispersed and fluttered in a large number of carbon fiber filaments, and a shelf-like carbon formed by a shelf-like rigid material and stretched over an enclosure positioned at a predetermined position on the water bottom One end of one or more carbon fiber strands on one or both sides of a string or a strip-shaped core material having a width of less than 3 cm at one or both sides at intervals of 5 cm to 40 cm which constitute a fiber artificial algae bed Of a tufted artificial algae in which the carbon fiber strands at the above-mentioned locations are dispersed in a large number of carbon fiber filaments so as to swell into tufts in water, and a band-like core material having a width of 3 cm to 8 cm. Longitudinal One end of one or more carbon fiber strands of a total of 60K to 180K is fixed on both sides of a plurality of places at a distance of 2cm to 10cm along the sea, and a large number of carbon fiber strands at each of the places are provided in water. A carbon fiber artificial algae field system comprising a combination of at least one of centrifugal artificial algae dispersed and fluttering in carbon fiber filaments, and at least two types of artificial algae. 7. A carbon fiber artificial algae bed system according to claim 6, wherein said core material is formed of a carbon fiber woven product.