JP2008092855A - Alga breeding device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alga breeding device using carbonized cotton to allow spores of algae and microorganisms to easily adhere, and suitable for breeding algae, and to provide an alga breeding method. <P>SOLUTION: This alga breeding devise is set in underwater so as to devise adhesion and raising of algae. The devise comprises forming in a planar shape, carbonized cotton 2 which is obtained by using cotton as the raw material followed by baking, and supporting the carbonized cotton 2 to fix from the vertical direction, using outer frames 3 and 3 having a netty body 3a. The alga breeding method comprises using a plurality of the alga breeding devices to form a reef body 11 structured in a layer form, and securing a weight 15 on the bottom of the reef body so as to secure the reef body to ground the bottom of the water. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an algae breeding apparatus and an algae breeding method, and more particularly, to an algae breeding apparatus and algae breeding method using carbonized cotton.

2. Description of the Related Art Conventionally, fishing reefs made of concrete or steel frames have been provided as fish feeding grounds and egg-laying grounds (see, for example, Patent Documents 1 and 2). The role of the reef is expected to propagate algae and attach microorganisms. In addition, structures having substantially the same structure as fishing reefs are used for culturing shellfish and algae such as kombu and laver (see Patent Documents 2 and 3). The role of this structure is to propagate algae and attach microorganisms, like the fishing reef.
However, in conventional fishing reefs and structures, although algae and microorganisms adhere to the surface of concrete and steel frames, the amount of adhesion is not large. This is because the surface of the steel frame and the surface of the concrete have some irregularities, but are microscopically flat, making it difficult for algae spores to adhere. Therefore, a carrier that is easy to attach algae spores and microorganisms to fishing reefs or structures has been studied, and a microorganism-attached carrier in which carbon fibers having high biocompatibility are knitted into a sheet shape has been developed (see Patent Document 4). .
JP-A-10-155388 JP 2000-188997 A Japanese Patent Laid-Open No. 9-37677 JP 2001-248044 A

On the other hand, carbonized cotton obtained by baking cotton for a long time at a high temperature has the ability to adsorb microorganisms. The carbonized cotton has bioaffinity similar to the carbon fiber, and further, the cellulose layer is exposed by removing the cuticle layer on the surface, so that the surface becomes rougher than the carbon fiber, and microorganisms and spores are obtained. Can be more adhered.
Therefore, in view of such problems, the present invention provides an algae breeding apparatus and an algae breeding method that are suitable for algae growth, using carbonized cotton, to which algae spores and microorganisms are easily attached.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, it is an algae breeding apparatus for installing and growing algae in water, using cotton as a raw material, and forming carbonized cotton obtained by firing into a planar shape, The carbonized cotton is fixed by sandwiching it from above and below using an outer frame provided with a net-like body.

  According to a second aspect of the present invention, a weight is fixed to the algae breeding apparatus according to the first aspect of the present invention and laid horizontally or vertically on the bottom of the water.

  In claim 3, a plurality of algae breeding devices according to claim 1 are used to form a laminar reef body, and a weight is fixed to the bottom surface of the reef body so that it is grounded to the bottom of the water. It is set.

  In claim 4, a plurality of algae breeding devices according to claim 1 are used to form a layered reef body, a mooring rope is hung from the bottom surface of the reef body, and a weight is suspended from the mooring rope. On the other hand, a float is connected to the upper surface of the reef body, and the reef body is fixed in a floating state in water.

  In Claim 5, it is an algae breeding device for installing and growing algae in water, using cotton as a raw material, and transforming carbonized cotton obtained by firing into a cylindrical shape, Similarly, a cylindrical inner frame that is slightly smaller than the outer frame is provided and disposed between the inner frames.

  In claim 6, the algae breeding apparatus according to claim 5 is combined to form a reef body, and a weight is fixed to the bottom surface of the reef body so as to be grounded to the bottom of the water.

  In claim 7, a reef body is configured by combining the algae breeding apparatus according to claim 5, a mooring rope is hung from the bottom surface of the reef body, a weight is suspended from the mooring rope, and an upper surface of the reef body A float is connected and the reef body is fixed in a floating state in water.

  In claim 8, the algae breeding apparatus in which the side surface and the bottom surface are formed by a net-like body, the side surface portion is constituted by a double net-like body, and is installed in water between the net-like body, An algae breeding apparatus for adhering and growing algae, in which carbonized cotton obtained by firing from cotton is disposed.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, due to the bioaffinity and surface roughness of carbonized cotton, algae spores are likely to be deposited on the surface of carbonized cotton, and other floating substances adhere to the surface of the carbonized cotton, thereby promoting the growth of algae. Moreover, since it is pinched | interposed with the net-like body, it can prevent that carbonized cotton moves.

  In claim 2, by arranging the algae breeding devices in a flat shape, it becomes possible to grow tall kombu and the like, and abalone and sea urchin can be cultivated. Moreover, it is possible to purify the surrounding water quality by the water purification action of the kombu.

  In claim 3, a plurality of algae breeding devices are juxtaposed at regular intervals, thereby providing a fish feeding place and a spawning place. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. In addition, a reef can be installed on the bottom of the water at a shallow depth. Moreover, since it is configured in a layered manner, a large amount of algae serving as a place for growing abalone and sea urchins such as abalone and sea urchin can be grown in a narrow bottom area, so that the larvae can be efficiently grown.

  In claim 4, a plurality of algae breeding devices are arranged in parallel at regular intervals, thereby providing a fish feeding place and a spawning place. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. Even in deep water, it is possible to install reef bodies in shallow water with high fish collection effect.

  In Claim 5, algae can be propagated inside and outside carbonized cotton, that is, inside and outside the cylinder.

  According to the sixth aspect of the present invention, when used as a fishing reef, the fish has a structure with many hiding places, so that it is possible to form a fishing reef with a good environment. In addition, a reef can be installed on the bottom of the water at a shallow depth.

  According to the seventh aspect of the present invention, it is possible to provide a feeding ground and a spawning place for fish by arranging a plurality of algae breeding apparatuses in parallel at regular intervals. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. Even in deep water, it is possible to install reef bodies in shallow water with high fish collection effect.

  In claim 8, when the algae breeding apparatus 50 is used as a sacrifice for culturing fish or the like, algae can be propagated on both sides of the carbonized cotton by arranging carbonized cotton around the sacrifice. Become. Therefore, it is possible to secure a fish hiding place and a spawning place, and provide an environment in which algae and fish can live together. In addition, surplus feed, which is a problem during fish farming, is also adsorbed by carbonized cotton, so that water pollution such as red tide is unlikely to occur.

The applicant of the present invention previously described "Purification Filter and Production Method and Preservation Method of the Filter" (Japanese Patent Laid-Open No. 2005-87083), "Carbohydrate Distillation Solution and Recovery Method thereof" (Japanese Patent Laid-Open No. 2005-225808). ).
The carbonized cotton of “Purification Filter and its Manufacturing Method and Preservation Method of the Filter” is excellent in the absorption, discharge or adsorption of gas molecules, the adsorption of liquid molecules, the adsorption of microorganisms or fine particles, and the adsorption performance of liquid or gas. Has an effect.

  In addition, the present applicant has first focused on the ability to adsorb gas molecules and fine particles of carbonized cotton, and said, “Fish and aquatic animal tank purification filter, method for producing the purification filter, purification filter storage method and fish And a method for purifying water tanks of aquatic animals ”(Japanese Patent Laid-Open No. 2005-117925).

On the other hand, with conventional fishing reefs and structures, although algae and microorganisms adhere to the surface of concrete and steel frames, the amount of adhesion is not large. This is because the surface of the steel frame and the surface of the concrete have some irregularities, but are microscopically flat, making it difficult for algae spores to adhere. In view of this, a carrier that can easily attach algal spores and microorganisms to fishing reefs or structures has been studied.
Therefore, the present applicant has focused on the ability of carbonized cotton to adsorb microorganisms in particular, and has led to the invention of an algae breeding method and apparatus using carbonized cotton.

  Carbonized cotton is made from cotton and fired at 800 ° C. to 1000 ° C. for 10 hours. As shown in the figure, cotton is carbonized to remove the cuticle layer (thin skin) (not shown) on the surface. The fibrous cellulose layer 51 composed of layers is exposed. Carbonized cotton is a carbon-based material (specific surface area of 1026 square meters / g) excellent in adsorption, and has the property of not adsorbing particles and adsorbing pollen or mold spores once in addition to gas and liquid.

  Next, embodiments of the invention will be described with reference to the drawings. 1 is a perspective view of an algae breeding apparatus according to an embodiment of the present invention, FIG. 2 is a front view of a reef body using a plurality of algae breeding apparatuses, and FIG. 3 is a bottom view of a reef body using a plurality of algae breeding apparatuses. FIG. 4 is a front view showing a state where a reef body using a plurality of algae breeding apparatuses is suspended in water, and FIG. 5 is a state where a reef body using a plurality of algae breeding apparatuses is arranged on the bottom of the water. FIG. 6 is a perspective view showing a state in which the algae breeding apparatus is laid on the bottom of the water, FIG. 7 is a partial sectional side view of the cylindrical algae breeding apparatus, and FIG. 8 is for using a plurality of cylindrical algae breeding apparatuses. FIG. 9 is a front view showing a state in which a reef body using a plurality of algae breeding apparatuses is suspended in water, and FIG. 10 is also using a plurality of algae breeding apparatuses. FIG. 12 is an enlarged view of carbonized cotton viewed with an electron microscope, and FIG. 11 is the present invention. FIG. 12 is a diagram, FIG. 13 is an enlarged view of carbonized cotton fibers to which spores are attached, FIG. 14 is a diagram schematically showing cotton after carbonization, and FIG. FIG. 4 is a graph showing the transition of wet weight (g) of epiphytic algae. In addition, the up-down direction in a present Example represents the arrow direction of FIG.

First, an algal breeding apparatus 1 according to an embodiment of the present invention will be described.
As shown in FIG. 1, the carbonized cotton 2 is formed in a sheet shape, and the carbonized cotton 2 is sandwiched and fixed by outer frames 3 and 3 from above and below. The outer frames 3 and 3 are composed of a permeation surface 3a configured in a net shape and an outer peripheral surface 3b for reinforcing the periphery of the corresponding lower cotton, and seawater, microorganisms, etc. pass through the permeation surface 3a and are carbonized. It is possible to contact the cotton 2. The carbonized cotton 2 is fixed by being sandwiched from above and below by the outer frames 3. With this configuration, the carbonized cotton 2 can be placed in water without being moved by a water flow or the like.
In addition, it is preferable that the said carbonized cotton 2 and the algae breeding apparatus 1 are large areas in order to deposit many algae spores in the sea.

Next, an algae breeding method using the algae breeding apparatus 1 will be described with reference to FIG.
A reef body 11 shown in FIG. 2 is configured by laminating the algae breeding apparatus 1 with outer frames stacked in layers. The reef body 11 is formed on a substantially quadrangular prism, and fixed columns 11a, 11a, 11a, and 11a are erected vertically from each vertex of the bottom surface. The algae breeding apparatus 1 is arranged in layers on the fixed column 11a at substantially equal intervals, and is fixed by a fixture. The shape of the bottom surface and the shape of the outer frame are not limited to a quadrangular shape, and can be formed in a polygonal shape or a circular shape.

As shown in FIG. 3, the reef body can be fixed to the bottom of the water by sinking with a weight attached to the bottom surface. That is, the weight 15 is fixed to each vertex of the bottom surface of the reef body 11 and is set to the bottom of the water. By submerging and fixing in this way, the reef body can be installed on the bottom of the water. That is, if the bottom of the water is shallow, the reef body 11 can be grounded to the place where fish and the like gather most. It should be noted that the same effect can be obtained by configuring the weight with a hook or the like.
In addition, as shown in FIG. 4, it is possible to provide a structure in which a float is provided on the upper surface of the reef body 11 while the weight 15 is submerged and the reef body 11 is moored by a mooring rope 21 from the weight 15. It is. That is, the mooring rope 21 is hung from each vertex of the bottom surface of the reef body 11, and the weight 15 is suspended from the mooring rope 21. On the other hand, a float 22 is connected to each vertex of the upper surface of the reef body 11. The reef body 11 floats in the water due to the buoyancy of the float 22, but stays at a predetermined position in the water by the suspended weight 15. Therefore, the reef body 11 can be determined at an arbitrary position depending on the length of the float 22 and the length of the mooring rope 21. By arranging the algae breeding apparatus in this way, when used as a fishing reef, it is possible to install a reef body in a shallow place where the fish collection effect is high even in a deep place. Moreover, when abalone and sea urchin are cultivated, a good growth environment can be provided by installing a reef in a shallow place.
By comprising in this way, it becomes possible to breed algae between the carbonized cotton and carbonized cotton which became layered. Therefore, when used as a fishing reef, it is possible to secure a hiding place and a spawning place for fish and provide an environment in which algae and fish can coexist. Moreover, since it is configured in a layered manner, a large amount of algae serving as a place for growing abalone and sea urchins such as abalone and sea urchin can be grown in a narrow bottom area, so that the larvae can be efficiently grown.

  Moreover, as shown in FIG. 6, the reef body 11 can also set the surface of carbonized cotton perpendicular to the water bottom. By installing in this way, it becomes easy for algae to grow upward from the spores adhering to both surfaces of the algae breeding apparatus 1. Moreover, since it is open | released below compared with the case where it installs in parallel with respect to a water bottom, since the light-collecting amount, such as a solar ray, increases, photosynthesis of algae can be promoted and growth can be promoted.

  It is also possible to spread the algae breeding apparatus 1 in a flat shape. That is, as shown in FIG. 5, the outer frame 3 holding the carbonized cotton 2 is fixed to the bottom of the water by attaching a weight 15 and submerged in water, and a plurality of the algae breeding devices 1 are laid on the bottom of the water. . By comprising in this way, compared with the case where carbonized cotton is arrange | positioned in layers, it becomes possible to grow algae with a high height, for example, a kombu required when abalone, sea urchin, etc. are cultivated Can be nurtured. In addition, since algae such as kombu have a water purification effect, the water quality in the vicinity can be improved.

Next, an algal breeding apparatus 31 according to another embodiment of the present invention will be described.
As shown in FIG. 7, the carbonized cotton 2 is configured in a sheet shape. On the other hand, the outer frame 33 is formed in a cylindrical shape, and its side surface is configured in a net shape. The carbonized cotton 2 is disposed along the inner surface of the outer frame 33. Since the carbonized cotton 2 has substantially the same material properties as cotton, it can be freely deformed without plastic deformation. Taking advantage of this feature, the inner surface of the outer frame 33 is aligned.
An inner frame 34 is disposed further inside the carbonized cotton 2. That is, the inner frame 34 is formed with a net-like side surface like the outer frame 33. The carbonized cotton 2 is sandwiched between the inner side surface of the outer frame 33 and the outer side surface of the inner frame 34 by fitting an inner frame 34 formed in a columnar shape having a smaller sectional area than the outer frame 33 to the outer frame. It can be set as the structure to do.

Next, an algae breeding method using the algae breeding apparatus 31 will be described with reference to FIGS.
As shown in FIG. 8, the reef body 11 is formed in a substantially quadrangular prism shape, and a fixed column 35a is erected from each vertex of the bottom surface. A rod-shaped member 37 is fixed between the fixed column 35a and the fixed column 35a in parallel with a plurality of bases, and an auxiliary member 38 is fixed in a direction perpendicular to the rod-shaped member 37 and parallel to the fixed column. Two opposing surfaces of the side surface of the reef body 11 are configured in a lattice pattern. By arranging the algae breeding apparatus 31 in each lattice on each side surface formed in the lattice shape, they are regularly arranged.
By arranging in this way, algae will propagate on the inside and outside of the carbonized cotton 2, that is, on the inside and outside of the algae breeding apparatus 31. Therefore, when used as a fishing reef, the fish has a configuration with many hiding places, so that it is possible to form a fishing reef with a good environment.

As shown in FIG. 9, the reef body can be fixed to the bottom of the water by sinking with a weight attached to the bottom surface. That is, the weight 15 is fixed to each vertex of the bottom surface of the reef body 11 and is set to the bottom of the water. By submerging and fixing in this way, the reef body can be installed on the bottom of the water. That is, if the bottom of the water is shallow, the reef body 11 can be grounded to the place where fish and the like gather most.
In addition, as shown in FIG. 10, a float 22 is provided on the upper surface of the reef body 11, while a weight 15 is submerged, and the reef body 11 can be moored by a mooring rope 21 from the weight 15. It is. That is, a mooring rope 21 is hung from each vertex of the bottom surface of the reef body 11, and a weight 15 is suspended from the rope. On the other hand, a float 22 is connected to each vertex of the upper surface of the reef body 11. The reef body 11 floats in the water due to the buoyancy of the float 22, but remains in a predetermined position by the suspended weight 15. Therefore, the reef body 11 can be determined at an arbitrary position depending on the length of the float 22 and the length of the mooring rope 21. By arranging the algae breeding apparatus in this way, when used as a fishing reef, it is possible to install a reef body in a shallow place where the fish collection effect is high even in a deep place. Moreover, when abalone and sea urchin are cultivated, a good growth environment can be provided by installing a reef in a shallow place.
By comprising in this way, it becomes possible to breed algae between the carbonized cotton and carbonized cotton which became layered. Therefore, when used as a fishing reef, it is possible to secure a hiding place and a spawning place for fish and provide an environment in which algae and fish can coexist.
In the present embodiment, the reef body 11 has the carbonized cotton surface installed substantially parallel to the bottom of the water, but the carbonized cotton surface can be installed perpendicular to the water bottom.

Next, an algal breeding apparatus 50 according to another embodiment of the present invention will be described.
As shown in FIG. 11, the algae breeding apparatus 50 is configured in a cylindrical shape with an open top, and the side surface portion 50a and the bottom surface portion 50b are configured by reticulate bodies 51 and 52. Is provided with a sheet-like carbonized cotton 2. That is, the side part of the algal breeding apparatus 50 is composed of outer and inner mesh bodies 51a and 51b, and the carbonized cotton 2 is sandwiched between the outer mesh body and the inner mesh bodies 51a and 51b. It is fixed by. Further, a water passage portion 53 not provided with carbonized cotton is provided on the side surface portion 50 a, and the mesh body 51 is roughened in the water passage portion 53.

The algae breeding apparatus 50 is configured such that the float 22 is provided around the upper surface, and the weight 15 is submerged and moored by the mooring rope 21 from the weight 15. That is, a mooring rope 21 is hung from each vertex of the bottom surface of the reef body 11, and a weight 15 is suspended from the rope. The reef body 11 floats in the water due to the buoyancy of the float 22, but remains in a predetermined position by the suspended weight 15. Therefore, the algae breeding apparatus is arranged such that the lower part of the float is located near the water surface.
In addition, in the Example which concerns on this invention, although the algal propagation apparatus was formed in the cylindrical shape, it is not necessarily limited to a cylindrical shape and can also be comprised in other polygonal column shape.

  By arranging the algae breeding apparatus 50 in this way, the algae breeding apparatus 50 can be used as a sacrifice for culturing fish and the like. That is, algae can be propagated on both sides of carbonized cotton by arranging carbonized cotton around the sacrifice. Therefore, it is possible to secure a fish hiding place and a spawning place, and provide an environment in which algae and fish can live together. In addition, surplus feed, which is a problem during fish farming, is also adsorbed by carbonized cotton, so that water pollution such as red tide is unlikely to occur.

Next, the effect when the carbonized cotton 2 is used for a fishing reef will be described with reference to FIGS. 12 is an enlarged view of 500 times magnification, and the carbonized cotton fiber of FIG. 13 is 2000 times magnification.
The carbonized cotton 2 is obtained by firing cotton at a temperature of 800 ° C. to 1000 ° C. for 10 hours. As shown in FIG. 14, the cotton is carbonized to remove a cuticle layer (thin skin) (not shown) on the surface. The fibrous cellulose layer 61 composed of three layers is exposed. Carbonized cotton 2 is a carbon-based material (specific surface area of 1026 square meters / g) excellent in adsorption, and has the property of not adsorbing particles and adsorbing particles, and pollen and mold spores once captured in addition to gas and liquid. . On the other hand, reef bodies require the growth of algae that are both fish feeding grounds and spawning grounds. The algae spores are very small, the number of the algae spores attached to the surface of the reef is small, and the growth of the algae may not progress. Therefore, the amount of algae spores attached is increased by using carbonized cotton. Specifically, as shown in FIG. 12 and FIG. 13, the fine structure of the carbonized cotton 2 has fibers 43 intricately interlaced, and a space is secured between the fibers 43 and 43. , Spores enter the space, the adhesion amount is improved. In addition, the fiber 43 itself becomes spiral in the process of carbonization and becomes porous, so that the surface area is increased, and the spore adheres to the surface of the fiber 43, so that the adhesion amount is improved. In addition to adhering not only spores but also microorganisms present in water, it also serves as a good feeding ground for small fish that feed on these microorganisms.

FIG. 15 is a graph showing the wet weight of attached algae when investigating the state of algae attachment by submerging the investigation zone in which carbonized cotton is laid on the upper surface of the mesh body and the control zone composed only of the mesh body into the sea. It is.
The survey was conducted by installing a survey zone and a control zone on the seabed with a depth of 7 m, whose bottom is sand, and setting it for 12 months in an environment with a water temperature of 9 to 26 degrees.
As shown in FIG. 15, the adhesion of algae was not confirmed at the time when 3 months had elapsed since the start of the survey in both the survey area and the control area. Although adhesion was confirmed, there was almost no difference between the study group and the control group. However, when 12 months had passed since the start of the survey, the wet weight of the attached algae in the survey group was greater than the wet weight of the attached algae in the control group. From this result, it can be said that by using carbonized cotton, it is possible to increase the adhesion amount of algal spores.

  The carbonized cotton 2 is biodegradable because it is an organic material derived from a living organism, and if it is left in water for a long time, it is decomposed and disappears. By configuring the outer frame and the fixed pillars of the fishing reef with the same biodegradable material, the reef itself disappears after a long period of time, and it becomes possible to perform processing without applying an environmental load.

  As described above, an algae breeding apparatus according to an embodiment of the present invention is an algae breeding apparatus for installing and growing algae, which is obtained by firing cotton as a raw material. The carbonized cotton 2 is formed in a flat shape and is fixed by sandwiching the carbonized cotton 2 from above and below using outer frames 3 and 3 each having a net 3a. With this configuration, the bioaffinity and surface roughness of the carbonized cotton facilitates the implantation of algae spores on the surface of the carbonized cotton, and other floating substances also adhere to promote the growth of algae. The Moreover, since it is pinched | interposed with the net-like body, it can prevent that carbonized cotton moves and can prevent the shape of carbonized cotton from collapsing.

  In addition, when the weight 15 is fixed to the algae breeding apparatus 1 and laid horizontally or vertically on the bottom of the water, it is possible to grow tall kombu and the like, and abalone and sea urchin can be cultivated. . Moreover, it is possible to purify the surrounding water quality by the water purification action of the kombu.

  In addition, in the case where a plurality of the algae breeding apparatuses 1 are used to form a reef body 11 configured in a layered manner, and a weight 15 is fixed to the bottom surface of the reef body and fixed to be grounded to the bottom of the water, By arranging a plurality of algae breeding apparatuses in parallel at regular intervals, it is possible to provide a fish feeding ground and a spawning ground. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. In addition, a reef can be installed on the bottom of the water at a shallow depth.

  In addition, a plurality of the algae breeding devices are used to form a layered reef body 11, a mooring rope 21 is hung from the bottom surface of the reef body 11, and a weight 15 is suspended from the mooring rope 21. In the case where a float 22 is connected to the upper surface of the body 11 and the reef body 11 is fixed in a floating state in water, a plurality of algae breeding devices are arranged in parallel at regular intervals, thereby providing a fish feeding ground. And provide spawning sites. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. Even in deep water, it is possible to install reef bodies in shallow water with high fish collection effect. Moreover, since it is configured in a layered manner, a large amount of algae serving as a place for growing abalone and sea urchins such as abalone and sea urchin can be grown in a narrow bottom area, so that the larvae can be efficiently grown.

  In addition, the algae breeding apparatus 31 according to another embodiment of the present invention is made of cotton as a raw material, and the carbonized cotton 2 obtained by firing is deformed into a cylindrical shape. In the case where the inner frame 34 having a slightly smaller shape is provided and disposed between them, the algae can be propagated inside and outside the carbonized cotton, that is, inside and outside the cylinder.

  When the algae breeding apparatus 31 is combined to form a reef body 11 and a weight 15 is fixed to the bottom surface of the reef body 11 so as to be in contact with the water bottom, when used as a fishing reef, Because of the structure with many hiding places for fish, it is possible to form a reef with good environment. In addition, a reef can be installed on the bottom of the water at a shallow depth.

  The alga breeding device 31 is combined to form a reef body 11, a mooring rope 21 is suspended from the bottom surface of the reef body 11, and a weight 15 is suspended from the mooring rope 21. When the float 22 is connected and the reef body 11 is fixed in a floating state in the water, a plurality of algae breeding devices 31 are arranged in parallel at regular intervals to provide a fish feeding place and a spawning place. can do. Moreover, it can play a biotope role by preparing an environment where algae and fish can live together. Even in deep water, it is possible to install reef bodies in shallow water with high fish collection effect.

  The algae breeding apparatus 50 according to another embodiment of the present invention is an algae breeding apparatus 50 in which the side surface portion 50a and the bottom surface portion 50b are formed of nets 51 and 52, and the side surface portion 50a is doubled. In the structure composed of reticulate bodies 51a and 51b, with a structure in which carbonized cotton 2 obtained by firing is used as a raw material between the reticulate bodies 51a and 51b, the algae breeding apparatus is used for fish cultivation. When using as a sacrifice that performs the above, it is possible to propagate algae on both sides of the carbonized cotton by arranging the carbonized cotton around the sacrifice. Therefore, it is possible to secure a fish hiding place and a spawning place, and provide an environment in which algae and fish can live together. In addition, surplus feed, which is a problem during fish farming, is also adsorbed by carbonized cotton, so that water pollution such as red tide is unlikely to occur.

The perspective view of the algae breeding device concerning one example of the present invention. The front view of the reef which used multiple algae breeding devices. The front view showing the state which has arranged the reef body using a plurality of algae breeding devices on the bottom of the water. The front view showing the state which suspended the reef body using two or more algae breeding devices in water. The front view showing the state which has arranged the reef body using a plurality of algae breeding devices on the bottom of the water. The perspective view showing the state which arranged the algae breeding device in the water bottom and laid it. The side surface partial sectional view of a cylindrical algae breeding device. The front view showing the state which has arrange | positioned the reef body using multiple cylindrical algae breeding apparatuses on the bottom of the water. The front view showing the state which suspended the reef body using multiple algae breeding devices in water. Similarly, a perspective view of a reef body using a plurality of algae breeding devices. The perspective view of the algal breeding device concerning other examples of the present invention. The enlarged view when carbonized cotton is seen with an electron microscope. The enlarged view of the carbonized cotton fiber to which the spore adhered. The figure which showed the cotton after carbonization typically. The graph which showed transition of wet weight (g) of epiphytic algae.

Explanation of symbols

1 Algae breeding device 2 Carbonized cotton 3 Outer frame 11 Reef

Claims (8)

  An algae breeding apparatus that is installed in water and is intended to grow and adhere algae, comprising carbonized cotton obtained by firing cotton as a raw material in a flat shape, and comprising the carbonized cotton as a net-like body An algae breeding apparatus, which is fixed by being sandwiched from above and below using an outer frame.   An algal grass propagation method, comprising: a weight is fixed to the algae breeding apparatus according to claim 1 and laid horizontally or vertically on a water bottom.   A plurality of algae breeding devices according to claim 1 are used to form a layered reef body, and a weight is fixed to the bottom surface of the reef body and fixed to be grounded to the water bottom. Algae breeding method to do.   A plurality of algae breeding devices according to claim 1 are used to form a layered reef body, a mooring rope is hung from the bottom surface of the reef body, a weight is suspended from the mooring rope, An alga breeding method, wherein a float is connected to an upper surface, and the reef body is fixed in a floating state in water.   It is an algae breeding device that is installed in water and is intended to grow and adhere to algae, using cotton as a raw material, calcined cotton obtained by firing and transforming it into a cylindrical shape, inside the cylindrical outer frame An algal breeding apparatus characterized in that it is also provided with an inner frame that is slightly smaller than a cylindrical shape and disposed between them.   An algae breeding method comprising: combining the algae breeding apparatus according to claim 5 to form a reef body, and placing a weight on the bottom surface of the reef body so as to be in contact with the bottom of the water.   A reef body is constructed by combining the algae breeding apparatus according to claim 5, a mooring rope is hung from the bottom surface of the reef body, a weight is suspended from the mooring rope, and a float is connected to the upper surface of the reef body. And a method for breeding algae, wherein the reef body is fixed in a floating state in water. An algae breeding apparatus in which a side surface portion and a bottom surface portion are formed of a net-like body, wherein the side surface portion is constituted by a double net-like body, and is installed in water between the net-like bodies to promote algae adhesion growth. An algae breeding apparatus for producing algae, characterized by comprising carbonized cotton obtained by firing from cotton as a raw material.