JP3607387B2 - Underwater forest creation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an undersea forest construction technique for creating an underwater forest centered on seaweed and improving the environment in the sea so as to bring about the propagation of seafood.
[0002]
[Prior art]
Currently, the promotion of coastal fisheries is an important issue in Japan, and the growth and aquaculture of seafood and seaweed are being promoted. However, in the coastal area, the seaweed basin disappears due to various causes, and the so-called bonfire phenomenon, in which the seafood that used the seaweed basin as a place of life drastically decreases, is spreading in various places.
[0003]
In general, seaweed grows and propagates on rocks on a relatively shallow seabed, but in the seared sea area, the rocks are covered with lime algae, and seaweeds are difficult to grow and grow very poorly. In the case of sandy mud, seaweed hardly grows. Therefore, it is necessary to introduce seaweed by bringing algae into the renewal of seaweed beds in such a salmon-burned sea area and the construction of seaweed beds in sandy mud sea areas.
[0004]
By the way, in conventional regeneration of seaweed beds and construction of seaweed beds, various improvements can be made by putting concrete blocks and natural stones into the seabed, or by devising specific shapes and locations of concrete blocks to be placed on the seabed. Attempts have been made (Japanese Patent Laid-Open Nos. 2-255027 and 2-76525). However, in these methods, in sea areas where the growth state of seaweed is poor, there is not only a small chance for the formation of alga bodies, but it may be difficult to obtain a good growth state due to alkali components in the concrete. Even if the spore or juvenile grows on the surface of the block, the degree of fixation is low, so there is a problem that it is likely to flow out due to sandy mud in the ocean current.
[0005]
In addition, a columnar or cylindrical culture formed by rolling a felt-like fiber aggregate and a culture formed using a belt-like felt are floated in the middle of the sea or submerged on the seabed. Attempts have been made to increase the growth area and promote the adhesion of spores of seaweeds floating in the sea (Japanese Utility Model Publication No. 3-56199, Japanese Utility Model Publication No. 4-71448). However, these construction methods have the same problems in sea areas where seaweeds do not grow well, and are not only structurally complex, but also due to secular changes, etc., due to felt clogging, etc. The original function for underwater forest construction is easily damaged, and the debris remains in the sea as it is, or the columnar or cylindrical shape cannot be maintained and may remain for a while and harm the environment. was there.
[0006]
[Problems to be solved by the invention]
This invention is made | formed in view of the above situations, The objective exists in the place which provides the underwater forest construction technique which satisfies the following matters.
(1) It is easy for the seaweed to grow and grow and is suitable for introduction into the sea.
(2) It is suitable for life maintenance management of seaweed seedlings.
(3) The retention of seaweed spores, juveniles or mature bodies in the sea is large.
(4) The applicable range is wide regardless of the material and shape of the building structure.
(5) It is suitable for transportation.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a seaweed seedling by attaching at least one kind of seaweed spore, juvenile, or mature body (hereinafter, these are sometimes referred to as alga bodies, etc.) to a carrier substrate made of small pieces in advance. A carrier piece is formed, transported to the establishment site in the state of the seaweed seedling carrying piece, and the seaweed seedling carrying piece is dispersed through the individual supporting substrate to the outer surface of the pillar body standing on the base As a result, the technical means of submerging the seaweed seedlings in the state of being distributed on the outer surface of the pillars to create an underwater forest was adopted. It is to be noted that the seaweed seedling carrying pieces are dispersed on the outer surface of the pillar body by forming fitting holes on the outer surface of the pillar body and inserting individual carrier bases into the fitting holes. You may make it attach to the state which carried out.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As an underwater forest construction structure to which the present invention can be applied, a pillar made of wood, bamboo, etc., such as thinned wood, based on a block-like structure formed in an appropriate shape from concrete, natural stone, synthetic material, etc. A structure in which the body is erected is used. Further, the supporting substrate is composed of a rod-like short piece formed in an appropriate shape such as a round bar or a pipe shape from wood or the like, a plate-like piece formed from various materials, or a cloth-like piece formed in an appropriate shape. The Then, as described later, at least one of seaweed spores, juveniles, and mature bodies is attached in advance to the supporting substrate to form a seaweed seedling-supporting piece, and then the seaweed seedling-supporting piece is transferred to the creation site. It will be carried and attached to the structure side. In this case, the seaweed seedling carrying piece formed using the former carrying base made of a rod-like short piece is fitted into a fitting hole or the like formed at an appropriate position on the structure side, and an adhesive or the like is used depending on the case. It can be attached or attached using a fastening means such as a nail. In addition, the seaweed seedling carrying piece formed using the latter carrying substrate made of a plate piece or cloth piece can be attached to the structure side using an appropriate fixing means such as an adhesive, a nail or a bolt. it can.
[0009]
In order to attach seaweed spores or juveniles to the support substrate, an algae nourishing paint is applied in advance to the surface of the rod-like short piece, plate-like piece, or cloth-like piece constituting the support substrate. Prepare food and immerse it in a tank containing seawater containing spores and juveniles for a specified period of time using a netting material, etc., making it suitable as a food for abalone, turban shell, sea urchin, etc. One kind or several kinds of spores or juveniles of appropriate seaweeds such as arame and scallop can be grown. In addition, when adhering mature seaweeds or juveniles of seaweed, attach them to the supporting substrate so as not to damage the temporary roots using appropriate fixing means such as an adhesive, a binding tool, and a driving tool. In response, it is further grown in the water tank. In this case, if the seaweed temporary roots are attached so as to be wound around the supporting substrate, the temporary roots grow so as to hold the supporting substrate and are firmly bonded so that they can sufficiently resist ocean currents and waves in the sea. A state is obtained. In addition, the types of seaweed to be attached to the support substrate and the growth stages of spores, juveniles, and matured bodies may be mixed and attached. As the algae nourishing paint, a water environment improvement paint containing photosynthetic bacteria, a carrier using porous particles, and nutrient components of the photosynthetic bacteria is preferable as described later. The application of the algae paint promotes the growth and growth of seaweed, and the support substrate is protected by the coating film of the algae paint, thereby increasing the water resistance and extending the service life as a seaweed seedling support piece.
[0010]
The seaweed seedling carrying piece formed after the process of attaching seaweed spores, juveniles or mature bodies to the carrying substrate is carried to the construction site in the state of the seaweed seedling carrying piece and attached to the structure side. In that case, it is important to maintain the algal bodies and the like in a good life state by immersing them in seawater or the like with the seaweed seedling-supporting pieces until they are finally set in the sea as much as possible. This is because it depends on whether or not high-quality seedlings can actually be provided for the development of underwater forests, which in turn has a great influence on the subsequent development results. And, the present invention exactly interposes an intermediate form of a seaweed seedling carrying piece in which algae or the like is attached to a carrying base consisting of small pieces as described above, and the alga body etc. remains in the form of the seaweed seedling carrying piece. The present invention also has technical features in that the state maintenance management can be implemented practically by performing the state maintenance management. For example, when there is a distance to the construction site, the seaweed seedling support piece is mounted on a trolley while maintaining predetermined conditions such as moisture, temperature, etc., and at the appropriate timing during transportation to the site If attached to and settled, extremely good quality algae can be provided. In this case, as described above, since the seaweed seedling carrying piece formed by attaching algae bodies to a carrying base made of small pieces is formed in a small size, the maintenance of moisture and temperature during its transportation is For example, it can be carried out by a simple method such as packing in a box such as polystyrene foam. In addition, since a large amount of seaweed seedling carrying pieces can be maintained and managed in a small space, the merit in transportation is extremely large.
[0011]
As described above, in the present invention, since the algal bodies and the like necessary for the formation of the underwater forest are supplied through an intermediate form called a seaweed seedling-supporting piece, the size of the single body is small, and thus handling is extremely simple. . Therefore, it is efficient because it is easy to maintain and work on the attachment conditions in the attachment process of alga bodies and the like, and requires less work space. In addition, as described above, it is easy to maintain and manage the state of algal bodies and the like during transportation. Furthermore, since the seaweed seedling carrying piece is formed and then attached to a structure for underwater forest construction, the shape and material of the pillar constituting the structure are not limited. In addition, since attachment of algae and life maintenance management can be carried out in units of seaweed seedling seedling carrying pieces, appropriate management can be easily performed, and high-quality seaweed seedling seedlings can be supplied. Therefore, the introduction of the seaweed seeds and seedlings will provide good quality nuclei for the next generation, and it will eventually spread over the entire surface of the structure and steadily create an underwater forest. Become.
[0012]
【Example】
Examples of the present invention will be described below. FIG. 1 is a perspective view showing an embodiment to which the present invention is applied. FIG. 2 shows a case where a seaweed seedling carrying piece in which seaweed spores or juveniles are grown on a carrying base. FIG. It is the schematic which illustrated the case where the attached seaweed seedling seedling carrying piece was used. In the figure, reference numeral 1 denotes a structure for underwater forest construction, and an overall skeleton is formed by a base 2 made of stone such as a concrete block and a column 3 made of an appropriate number of timbers standing on the base 2. It is formed. In the figure, 4 is a seaweed seedling carrying piece formed by attaching seaweed spores, juveniles or mature bodies 5 to an appropriate carrying base as described above. In addition, as the wood used for the pillar 3, natural wood such as thinned wood is peeled off as it is and coated with an after-mentioned algae nourishing paint, or wood processed into a columnar or prismatic shape The one coated with a nourishing paint is used. In order to propagate specific seaweed, a seaweed seedling carrying piece 4 to which spores or the like of a specific seaweed selected in advance is attached around the pillar 3 is attached. The attachment site of each seaweed seedling seedling carrying piece 4 to the pillar 3 is dispersed to the outer surface of the pillar 3 via individual carrying bases so that the seaweed seedling carrying pieces 4 do not compete with each other in the same plane as much as possible. So that they are shifted from each other. Further, the base 2 made of stone is only required to have a weight and a shape that can stabilize the structure 1 when it is set on the seabed, and is not limited to the rectangular parallelepiped shown in the drawing, and natural stone may be used. In addition, when using a concrete block, it may become an artificial reef by providing a space inside or forming it in an appropriate shape. The length of the column 3 is appropriately determined according to the depth of the sea area to be set and the type of seaweed. In any case, it is desirable to sink to the seabed so that the upper end of the column 3 is deep enough not to damage the bottom of a fishing boat or the like.
[0013]
As the pillar 3, as described above, natural wood such as thinned wood is peeled off, or wood processed into a predetermined cross-sectional shape is particularly suitable from the viewpoint of manufacturing cost, environmental protection, etc. Depending on the installation area, bamboo and steel pipes may be selected, and even if they decay, they are unlikely to cause environmental pollution. Of course, the use of synthetic resin pipes is also possible. An appropriate algae nourishing paint is applied to the surfaces of these pillars 3 before or after the base 2 is erected, and a coating layer made of the algae nourishing paint is formed on the outer surface thereof. In this case, the same algae nourishing paint is applied to the outer surface of the base 2 as required. The algae nourishing paint may be a known one that is generally used and is not particularly limited. Examples thereof include the photosynthetic bacteria disclosed by the applicant, the carrier using porous particles, and the photosynthetic bacteria. A water environment improving paint (Japanese Patent Laid-Open No. 5-247378) containing the above-mentioned nutritional components is suitable. When such a paint is used, its sustainability is higher than that of conventional algae paints mainly composed of chemical fertilizers, etc., so that a high growth rate of seaweed can be maintained over a long period of time and Necessary nutrients can be stably supplied. As a result, the renewal is repeated in the seaweed community, and a stable underwater forest is established. The foundation of the three-dimensional underwater forest is constructed by appropriately laying and sinking the required number of undersea forest construction structures 1 formed in this manner on the seabed. In addition, when this structure 1 for underwater forest construction is installed in high density, the effect as an artificial reef is also acquired.
[0014]
As the seaweed seedling support piece 4, as described above, the support base made of an appropriate small piece such as a piece of wood is used, and an algae coating is applied to the surface depending on the case. One or several kinds of specific useful seaweeds such as arame and sea urchin that are suitable as feed for Sazae and sea urchins are selected and their spores, juveniles or mature ones are used. In this case, as described above, it is possible to mix seaweed spores, juveniles, and matured growth stages. The algae paint itself is the same as that of the algae paint applied to the outer surface of the column 3 described above. In addition, when adopting a mature seaweed or the like, it adheres to the seaweed seed and seedling carrying piece 4 so as not to damage the temporary root using an appropriate fixing means such as an adhesive or a binding band. The seaweed seedling carrying piece 4 thus obtained is fitted into a fitting hole such as a mortise formed on the outer surface of the column 3 and fixed with an adhesive or the like as necessary. In addition, when a circular cross section such as a round bar or a pipe is used as the supporting substrate, it can be fitted into the fitting hole of the column 3 at any position, so that the seaweed adhered to the surface thereof. It can be installed considering the optimal position for sunshine depending on the state of growth of the juveniles and matures, and the seaweed temporary roots are easy to grasp and there are fewer shadow parts than the square ones There are merits such as.
[0015]
In addition, in the said Example, although the seaweed seedling seedling support piece 4 was demonstrated regarding the case where it attached to the pillar 3, on the surface of the base | substrate 2, a suitable fitting hole etc. are formed and a rod-shaped seaweed seedling seedling is formed. The supporting piece 4 can be attached, or the above-mentioned seaweed seedling supporting piece formed in a plate shape or cloth shape can be attached using an adhesive or an appropriate fixing means.
[0016]
【The invention's effect】
According to the present invention, an intermediate form called a seaweed seedling carrying piece formed by attaching algae bodies or the like to a carrying base made of small pieces is interposed, and the seaweed seedling carrying seedling is transported to the establishment site in the state of the seaweed seedling carrying piece. The seaweed seedlings are distributed in the outer surface of the pillars in the sea by attaching them to the outer surface of the pillars standing on the base via the individual supporting bases. Adopting the technical means of submerging and creating an underwater forest, the following effects can be obtained.
(1) Since the introduction of seaweed into the established sea area is carried out through an intermediate form of seaweed seedling-bearing pieces, attachment work and life maintenance management of the alga bodies used therefor are extremely easy. Therefore, since a high-quality seaweed seedling is provided, more reliable creation of an underwater forest is realized.
(2) Since it is configured to be attached to the structure for undersea forest formation by interposing an intermediate form of a seaweed seedling carrying piece formed by attaching algae bodies etc. to a carrying base made of small pieces, Through the support substrate, the seaweed seedlings can be attached to the outer surface of the pillars constituting the building structure in a very simple and dispersed manner. As a result, it is possible to create a three-dimensional underwater forest more efficiently and reliably by using seaweed seedlings with good growth conditions distributed over the entire outer surface of the column.
(3) Since the attachment work of alga bodies and the like is performed on the supporting substrate made of small pieces, the work management is simple, and various seedlings can be widely used regardless of the growth stage and type of seaweed.
(4) Since seaweed grows so that temporary roots are wound around the supporting substrate and firmly grows, a structure for generating a large holding force that does not flow into ocean currents and waves in the sea can be obtained. .
(5) Since attachment to the construction structure such as algae is performed via the seaweed seedling carrying piece, it is not affected by the material or shape of the column constituting the construction structure.
(6) Since it can be transported in the form of a small seaweed seedling carrying piece, it can be transported while easily maintaining and managing the life state of the alga bodies and the like by a simple method such as a polystyrene foam box. Therefore, it is very effective particularly for installation work at a remote location.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the whole of an embodiment to which the present invention is applied.
FIG. 2 is an enlarged schematic view showing a case where a seaweed seedling carrying piece on which spores or juveniles are grown is used.
FIG. 3 is an enlarged schematic view showing a case where a seaweed seedling carrying piece to which a matured body is attached is used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Underwater forest construction structure, 2 ... Base, 3 ... Column body, 4 ... Seaweed seedling carrying piece, 5 ... Mature body

Claims (2)

At least one of seaweed spores, juveniles or mature bodies is attached to a carrier made of small pieces to form a seaweed seedling carrying piece, and in the state of the seaweed seedling carrying piece, it is transported to the establishment site and the seaweed seedling The seaweed seedlings are distributed in the outer surface of the pillars in the sea by attaching them to the outer surface of the pillars standing on the base via the individual support bases. An underwater forest construction method characterized by being submerged. A state in which fitting holes are dispersed on the outer surface of the pillar body, and the seaweed seedling carrying pieces are dispersed on the outer surface of the pillar body by inserting individual carrier bases into the fitting holes. The method for creating an underwater forest according to claim 1, wherein the method is attached to the underwater forest.

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