JP2011000089A - Method for creating seaweed bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for creating a seaweed bed comprising employing seaweed seeds and seedlings for transplantation which can be easily attached to variously shaped creation structures such as artificial fish beds or covering blocks so as to rationalize workability and increase the fixing ratio of the seeds and seedlings.SOLUTION: The method for creating a seaweed bed comprises employing seaweed seeds and seedlings 1 formed so that small seaweed alga bodies 5 adhere to the head part 3 of a synthetic resin binding band 4 which holds a belt-like part 2 on one surface side of which sawtooth projections are formed and which can be curved in a loop-like shape, with the box-like head part 3 having a catching nail in its inside so as to be in a loop-like shape. The seaweed seeds and seedlings are put around hooks 12 of a creation structure 10 utilizing loop state-maintaining function of the binding band 4 to be attached. The small seaweed alga bodies 5 grow into adult ones on the creation structure 10, and circumferentially disperse zoospores and the like so as to create the seaweed bed.

Description

  The present invention relates to the construction of seaweed beds centering on seaweeds that bring about the reproduction of seafood and contribute greatly to the improvement of the marine environment, and more particularly to seaweed bed construction technology using seaweed seedlings for transplantation. is there.

  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 areas, seaweed beds disappear due to various causes, and the seafood that uses the seaweed baths as a place of life is drastically reduced. ing.

  Conventionally, when regenerating lost seaweed beds or creating a new seaweed bed at a new location, a structure such as a concrete block (fixed substrate or attachment) with various devices that can function as an aquatic bed for seaweed. In general, it is generally called “building structure” in this specification, and it is awaited for the seaweed to naturally grow on the surface of these structures. Is the method. However, these conventional methods depend on natural establishment through spores and the like, and therefore, the establishment of seaweeds in the early stage of development is not only greatly influenced by uncertain natural factors, but also in the establishment of seaweed beds. It took time and there were fundamental problems in terms of creation efficiency and certainty.

  Therefore, in the recent seaweed bed construction work, the introduction of seaweed seedlings prepared for transplantation has been actively promoted accompanying the settling of the construction structure. The seaweed seedling for transplantation used here is a form in which a seaweed seedling grown from spores or the like has grown (supported) on the surface of a substrate made of an appropriate material or shape such as a plate or rope. And the seaweed seedling are fixed to an appropriate location on the surface of the building structure in an integrated state. In the production of seaweed seedlings for transplantation, the establishment of seaweed seedlings on these substrates can be carried out either in land tanks or in the sea, but large enough to withstand transplantation of seaweed seedlings grown on the substrate surface. It is necessary to carry out intermediate breeding in order to make it easier. Considering such work environment and work procedures, points such as ease of handling seaweed seedlings during work, work space required for settlement and intermediate growth, suitability for mass production as seaweed seedlings for transplantation, etc. Therefore, it can be said that the rope-like substrate is superior to the plate-like substrate. Thus, Patent Documents 1 to 3 are known as conventional examples of seaweed bed construction using a rope-like substrate with seaweed seedlings.

JP 2003-143999 A JP 2001-275515 A JP 2000-116256 A

  However, in the method disclosed in Patent Document 1 or Patent Document 2 above, the rope itself on which the seaweed seedlings are grown is configured to be installed in a state separated from the surface of the building structure such as a concrete block. There are several problems. That is, in order to create a permanent seaweed bed, it is necessary to use the surface of the main body of the building structure that is structurally and materially stable as a seaweed growth site (establishment bed). However, when seaweed seedlings are installed at a position distant from the surface of the construction structure in this way, the fixation on the surface of the construction structure depends on the establishment through spores released from these seaweed seedlings. Therefore, it takes time to settle seaweed, and there is no guarantee that it will definitely settle. Moreover, although the method of patent document 3 is a structure which attaches a seaweed seedling in the proximity | contact state with respect to the structure for construction, the rope with a seedling must be integrated with the locking tool shape | molded in the ring shape. Therefore, there is a restriction that the application target is limited to a building structure having a columnar portion.

  The present invention has been made in view of the conventional technical situation as described above, and seaweed seedlings for transplantation are established at an early stage at a high probability, and this serves as a mother alga and functions as a core for seaweed development. In addition, it is an object of the present invention to provide a method for creating a seaweed bed that can be applied directly to various structures for construction without preparing a separate attachment member for seaweed fixation.

  In order to solve the above-mentioned problem, in the seaweed bed construction method according to the present invention, a band-shaped portion that can be bent in a loop shape is attached to the head portion of the binding band that holds the loop state with the head portion provided on one end side thereof, After using seaweed seedlings that are formed from seaweed microalgae, the seaweed seedling seedling band is wrapped around and fixed to the required location at the site of construction, and then the microalgae on the head becomes the mother alga. It is characterized by adopting the technical means of growing seaweed.

In the seaweed seedling of such a form, a binding band that can hold the band-like portion in a loop state is integrated with the microalgae, so that, for example, hooks and structures provided on the surface of a concrete block installed on the sea floor By using a rod-shaped part or natural bedrock, the band-shaped part of the binding band is wrapped around those parts, and the head and the band-shaped part are engaged with each other without looseness, so that it can be easily and reliably attached. .

In the above configuration, as the binding band, a claw that engages with a band-shaped portion formed on one side of a saw blade-like projection continuous in the longitudinal direction and a saw-tooth projection of the band-like portion that is inserted from the other end side into the inner space portion. When a head composed of a head that engages and holds a loop shape is used, the workability at the time of attachment is further improved, and the fixed state after attachment to the building structure or the like is further stabilized.

In the seaweed bed construction method according to the present invention, a seaweed microalgae grown on the head of a binding band capable of realizing a loop-like tightened state between the belt-like portion and the head is used as a seedling for transplantation. Therefore, the following effects can be obtained.
(1) By using a binding band integrated with a microalgae, it is possible to easily attach seedlings for transplantation to various construction structures or natural bedrock. The seaweed seedlings that have settled and become adults spread seaweeds to other parts of the construction structure and surrounding abandoned stones, etc. by spreading zoospores around the seedlings as the core of the seaweed field construction. Can be expanded reliably and economically in a short period of time.
(2) Since the band-like portion of the binding band is wrapped around the attachment site of the construction structure and the head and the belt-like portion are engaged with each other without loosening, the tightened state is maintained. The fixed state is stable. As a result, the temporary root portion of the microalgae quickly extends from the head of the binding band to the surface of the building structure, and the microalgae are fixed to the building structure in a relatively short period of time. Therefore, if such a seaweed seedling is used, the seedling seedling establishment rate is improved. For example, the seedling seedling is less likely to fall off and be lost in the course of creation, and the number of deaths during the creation is reduced.
(3) Since the tightening function of the binding band is used, it is of course possible to attach to the construction structure at sea, and it is easy to install in the sea after settling, and the degree of freedom of the attachment work is high. Furthermore, it is also possible to replace dead seedlings and add seedlings.
(4) If seaweed seedlings in which one individual alga body is grown on one unity band are used for transplantation, the alga body in a good growth state according to the actual required amount when planning the seaweed development Can be handled with the minimum required quantity, leading to efficient use of seedlings.

It is a front view of the seaweed seedling used in the present invention. It is the front view of a binding band, and its center cross-sectional view. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a first embodiment of a seaweed bed building method according to the present invention. It is a perspective view which shows 2nd Example of the seaweed bed construction method which concerns on this invention. It is a perspective view which shows 3rd Example of the seaweed bed construction method which concerns on this invention.

  In the present invention, the head of the binding band that is widely used for binding electric wires, cables, etc. is used as a seaweed settlement bed, and the loop-shaped holding function of the binding band integrated with the seedling algae body is a structure for construction. There is a technical feature in that it is used as an attachment means for an object or the like. As the binding band in this case, for example, a synthetic resin binding band widely known under the trade name of Insulok is suitable, but it is possible to apply various shapes and materials having a band-shaped portion and a head. Yes, the band-shaped portion and the head portion are not necessarily limited to one, and may be divided. Since the seaweed seedling used in the present invention is attached in a loop shape to a binding band that constitutes a part of the seaweed seedling, for example, a sinking hook provided in a construction structure, a band portion of the binding band is wound around The present invention can be applied to various structures such as a fish reef block, a wave-dissipating block, a covering block, and a rooting block having a portion such as a bar-like portion. Furthermore, it can be applied to natural rocks and rocks by appropriately selecting the shape of the attachment location, and can be attached to a construction structure at sea or in the sea.

For example, the production of seaweed seedlings composed of tie bands integrated with seed and seedling algae as described above is performed by, for example, bringing together a plurality of tie bands so that their heads are close to each other. Install in an aquarium containing germ cells such as embryos. As a result, these germ cells attach directly to the head surface of each binding band and grow on this head until reaching the stage of microalgae. In addition, in order to further increase the adhesion of germ cells, it is preferable to roughen the head surface. After that, the state of aggregation of these binding bands is solved and used as seaweed seedlings for seaweed establishment in units of individual binding bands, but depending on the usage conditions such as the type of seaweed, purpose of use, environment of installation location, etc. In addition, intermediate breeding may be performed in the sea. The algal field targeted by the present invention depends on the availability of seed and seedling algae integrated with the binding band as described above, but seedling production in brown algae, red algae, green algae and the like is possible. The seaweed species to be configured is not particularly limited. The seaweed applicable to the present invention may be selected in consideration of the main purpose of creating the seaweed bed and the seaweed that naturally grows in the area. Large seaweeds such as seaweeds are preferred, and when they are used as feed for abalone and turban shell cultivation, seaweeds such as arame, swordfish, and black seaweed are preferred. Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is of course not limited thereto, and various modifications can be made within the technical idea of the present invention.

FIG. 1 is a front view of a seaweed seedling used in the present invention. The illustrated seaweed seedling 1 includes a binding band 4 in which a box-shaped head 3 is provided on one end side of a band-shaped portion 2 and a seaweed microalgae 5, and the microalgae 5 is attached to the head 3 of the binding band 4. On the other hand, it is formed on the surface portion on the opposite side to the extending direction of the belt-like portion 2, and the both are integrated.

2 (a) and 2 (b) show the configuration of the binding band 4 in more detail, and are a front view and a central cross-sectional view, respectively. The binding band 4 is made of a synthetic resin such as polyamide as a whole, and a serrated projection 2a is formed along the longitudinal direction on one side of the flexible band-shaped part 2 and on one end side of the band-shaped part 2. A locking claw 3b is provided in the inner space 3a of the box-shaped head 3 located. When using the function as a binding band, when the belt-like portion 3 is bent and inserted from the other end into the inner space 3 a of the head 3, the saw-tooth projection 2 a of the belt-like portion 3 locks the head 3. By engaging with the claw 3b, the belt-like portion 2 can be held in a loop at an arbitrary position. In addition, the binding band applicable to this invention is not limited to this, A material, the dimension of each part, the whole shape, a latching structure, etc. can be changed suitably.

  FIG. 3 is a first embodiment of the method for creating a seaweed bed according to the present invention, and the seaweed seedling 1 is applied as a structure for seaweed bed creation, for example, to a covering block installed on the shoulder portion of a basic rubble mound. It is a perspective view which shows a case. The illustrated covering block 10 is a substantially triangular plate-like concrete structure in which a through hole 11 is formed at the center, and a hook 12 for suspension is provided on an upper surface portion near the top. In this case, it is possible to simply and reliably attach the band-like portion 2 of the binding band around the hook 12 and to insert the other end side into the head 3 and pull it, and the fixed state after attachment is also stable. When the seaweed seedling 1 is attached to the hook 12, the temporary root portion of the microalgae 5 is more likely to be settled earlier at a position as close as possible to the surface of the covering block 10. Since the seaweed seedling 1 according to the present invention uses the loop-like tightening state as a means for attaching to the construction structure, not only the construction structure before the construction but also the construction structure. There is an advantage that it can be mounted in the same manner.

  FIG. 4 shows a second embodiment of the seaweed bed construction method according to the present invention, and the shape of the construction structure and the method of attaching the seaweed seedlings are different from the above embodiment. The building structure 20 used in this embodiment is a concrete structure integrated so that three columnar bodies intersect, and two columnar bodies 21a and 21b arranged in an X shape. On the other hand, the columnar body 21c arranged so as to straddle them is installed on the seabed so as to be positioned below, and is used as a wave-dissipating block. The seaweed seedling 1 is firmly fixed to the construction structure 20 by winding the band-like portion 2 of the binding band around the upper portions of the two columnar bodies 21a and 21b and engaging the head portion 3. The In this case, the periphery of the columnar bodies 21a, 21b, and 21c is utilized as a habitat space for seafood. In addition, the attachment position of the seaweed seedling 1 is not limited to this, It is also possible to provide so that the small algae body 5 may be located on the upper surface of the columnar body 21c below.

  FIG. 5 is a third embodiment of the seaweed bed construction method according to the present invention, and shows a case where the method is applied to an artificial fish reef as a construction structure. The construction structure 30 shown in the figure is a cubic lattice frame concrete structure called a square fish reef or a parallel fish reef. Two seaweed seedlings 1 are attached to each side of the horizontal lattice frame 31 located on the upper side, and one to each vertical lattice frame 32. In this case, since the tightening function of the binding band 4 is high, the horizontal lattice frame 31 is, of course, the seaweed seedling 1 is securely fixed even in the vertical lattice frame 32, so that the structure 30 for creation can be obtained early. It settles on the surface of it, matures there, and releases countless zoospores around it. As a result, not only the other surfaces of the building structure 30 but also other nearby building structures and the surface of abandoned stones attached to the surroundings, etc. Seaweeds grown and grown in these places also release zoospores and the like. By repeating this cycle, the growth range of seaweed gradually expands, and a seaweed bed is formed. When applied to such an artificial fish reef 30, a habitat space and a feed supply place are provided at the same time, which is an ideal place for seafood.

  According to the present invention, by using a seaweed seedling in which a seedling algae body and a binding band are integrated, it can be easily attached to various structures and the like where the seaweed grows, and its fixed state Therefore, the success rate of seaweed basin development is increased and the work can be streamlined.

  DESCRIPTION OF SYMBOLS 1 ... Seaweed seedling, 2 ... Band-shaped part, 2a ... Sawtooth process, 3 ... Head, 3a ... Inner empty part, 3b ... Locking claw, 4 ... Bundling band, 5 ... Microalgae body 10, 20, 30 ... Construction structure, 12 ... hook, 21a, 21b, 21c ... columnar body, 31, 32 ... lattice frame

Claims (2)

Algae using seaweed seedlings in which seaweed microalgae are grown on the head of the binding band that holds the loop-shaped band-shaped part in a looped state at the head provided on one end thereof A field creation method, characterized in that the seaweed seedling tying band is wrapped around a required position of the creation site and fixed, and then the microalgae on the head become mother algae and the seaweed grows around. How to create a seaweed bed. A locking claw engages with the band-like portion in which the binding band is formed on one side with a saw blade-like projection continuous in the longitudinal direction and the saw blade-like projection of the belt-like portion inserted from the other end side into the inner space. The seaweed bed construction method according to claim 1, comprising a head portion that holds a loop shape.

Images