JP2007006796A - Breeding fishbank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a breeding fishbank capable of realizing in particular a site suitable to releasing fingerings and also capable of forming a nuclear seaweed bed also suitable as a fingerings' raising environment while preventing shore decay. <P>SOLUTION: The breeding fishbank comprises a surf-livings-raising area P1, a seaweed-raising area P2 set up above the area P1 and a net 52 for protecting surf-livings and seaweed through preventing foreign enemies from invading into these areas. In this fishbank, the protective net 52 comprises a surf-livings-raising area-protective net section 522b provided correspondingly to the area P1 and a seaweed-raising area-protective net section 522a provided correspondingly to the area P2, wherein the net section 522b is formed with such meshes as not to pass fingerings therethrough, while the net section 522a is formed with such meshes as to be larger than those of the net section 522b but prevent carnivorous marine organisms and herbivorous fishes from invasion. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention comprises a root resource growth region for growing root resources such as abalone and sea urchin, and an algae growth region set above the root resource growth region and for growing algae. Protection that protects root resources and algae by preventing the entry of carnivorous marine animals such as starfish and octopus and algal-eating fish such as Aigo, Izumi, and sea bream into these areas. It relates to breeding reefs with nets.

Conventionally, various types of breeding reefs have been devised for growing, growing and catching fish root resources such as abalone, tocobushi, turban shell, sea urchin, and lobster. Among such breeding reefs, those with relatively simple structure are lobster breeding reefs that are installed in a multi-stage manner with a plurality of plate-like concrete boards with gaps of suitable dimensions for hiding lobsters. Reference 1), and a relatively complicated structure is a concrete plate formed by combining a circular passage and a radial passage to the extent that a root resource can pass on a pedestal having a wide installation surface. The thing (refer patent document 2) which mounts the Sone resource breeding reef which becomes will be mentioned. In particular, in the latter, a food culture reef that can cultivate plankton, etc., which feeds the root resource, and an algal breeding reef for growing algae are stacked on the pedestal above the ridge resource growth reef. As a result, it is possible to construct a multifunctional breeding reef that grows not only root resources but also feed biological algae and fish as a whole reef.
JP 59-213338 A JP 2002-335806 A

  However, in general, when cultivating radish resources, radish resources are released into the sea when they have grown from larvae to juveniles with a length of several centimeters (abalone, tokobushi, turban shell, juvenile sea urchin, juvenile shrimp, etc.) However, juveniles of released Sone resources are hidden in small gaps in the reef where they cannot enter aliens such as octopuses and starfish that feed on them. It moves sequentially in search of a wide space that matches the size of the body. However, the Sone resource breeding reef, which is a component of the lobster breeding reef and the multifunctional breeding reef as described above, has almost uniform widths or passages formed in them. Although adults of resources are suitable for hiding themselves, juveniles are too wide to hide and easily caught by carnivorous marine animals such as starfish and octopuses. Abalone nymphs can easily be turned over and eaten by foreign enemies. In other words, it is not necessarily suitable for growing young plants of Sone resources. In addition, even if algae grow, there is a problem that alga-eating fish such as Aigo, Izumi and Budai eat algae and cause drought.

  The present invention has been made paying attention to such problems, and its main purpose is to realize a place particularly suitable for the release of juveniles and to prevent the growth of juveniles while preventing drought. It is to provide a breeding reef that can form a suitable nuclear algae field.

  That is, the breeding reef of the present invention includes a root resource growth region for growing root resources such as abalone and sea urchin, and an algae set on the upper side of the root resource growth region and for growing algae. It is possible to prevent the invasion of external enemies such as carnivorous marine animals such as starfish and octopus and algal-eating fish such as Aigo, Isuzumi and Budai. A breeding reef comprising a protective net for protecting algae, wherein the protective net is provided for the root resource growth area protection net section corresponding to the root resource growth area, and the root resource growth area protection. An algae growth area protection net part provided corresponding to the algae growth area and continuing to the net part, and forming the root resource growth area protection net part with a mesh size capable of preventing passage of the juvenile On the other hand, the algal growth area protection net part , Characterized in that it is formed by mesh size which may interfere with the Isone resource growth region Protective net unit flared and the carnivorous marine animals and the algae corrosion fish penetration than mesh size of.

  If this is the case, the Sone Resource Growth Area Protection Network Unit prevents the Sone Resource Juvenile from escaping out of the Protection Network Unit, and carnivorous marine animals enter the protection network unit. Therefore, it is possible to secure a suitable growth environment for the juveniles. Moreover, since the algal growth region protection net | network part ensures the tidal current required for the growth of algae, preventing the invasion of algal-eating fish, it can grow algae suitably.

  In other words, it provides an excellent breeding reef that can realize a place particularly suitable for the discharge of juveniles and can form a nuclear algae field suitable as a growth environment for juveniles while preventing drought. can do.

  In order to prevent deposits in seawater from adhering to each protective net, and to contribute to extending the life of each protective net, It is preferable that silicon is applied to the yarn and the net yarn of the algal growth region protective net.

  Prevents the root source from entering the algal growth area protection net from the root resource growth area protection net at the boundary between the root resource growth area protection net and the algal growth area protection net If the intrusion prevention means is provided, the intrusion prevention means prevents the root resource from entering the algae growth area protection net, and the root resource escapes from the mesh of the algae growth area protection net. This can be prevented.

  It is provided with at least three or more columnar portions that are erected so as to avoid being arranged in the same straight line, and the protective net is arranged between these adjacent columnar portions and is detachable from the columnar portions. It is configured to have a plurality of standing nets, and the lower side of each standing net is set as the root resource growth area protection net part and the upper side is set as the algal growth area protection net part. For example, the protective net can be easily removed and attached to the columnar part. That is, operations such as repair and replacement can be easily performed.

  In order to prevent the protection net from being lost, to improve the handleability, and to simplify the installation work, the protection net is provided in correspondence with the surface formed by connecting the upper ends of these adjacent columnar parts. A net is further provided, and each side of the upper surface net and each side of the upright net adjacent to each side of the upper surface net are continued at least partially, thereby providing a single upper surface net and a plurality of upright nets. It is preferable that

  A plurality of growth blocks for growing a juvenile are arranged in the Sone resource growth area, and when arranging a plurality of growth blocks, between adjacent growth blocks As long as a gap for growing the root of the root is formed so that the juvenile or its adult enters, an environment suitable for the growth of the root can be provided.

  As a desirable mode of the present invention, a pedestal for forming the root resource growth region and the algae growth region is provided, and one or a plurality of the growth blocks are integrated with or separately from the pedestal. What is comprised so that it may attach to this pedestal using is mentioned.

  If the intermediate mounting portion has a gap adjustment protrusion for adjusting a gap that reduces a gap formed between adjacent growth blocks, a more suitable environment for growing a root resource is obtained. Can be provided.

  The pedestal is configured to be supported by a support leg at a position spaced from the seabed, and a through hole is formed so as to penetrate in the thickness direction of the pedestal, and the through hole is blocked. If the through-hole member is provided so as to be detachable for stopping, the through-hole member can be attached to the through-hole during the growth of the root resource, and removed when the growth is completed. Therefore, the Sone resource can be kept in the Sone resource growth area during the growth, and it can be encouraged to escape from the Sone resource growth area using the through hole when the growth is completed.

  In order to be able to slide-support the through-hole member without using a special member, the through-hole member that supports the peripheral portion of the through-hole member in a slidable manner on the intermediate mounting portion It is desirable to provide a slide support.

  If the through-hole member is a mesh formed with a mesh size that can prevent the passage of the juvenile, the uplift flow received by the pedestal from the lower surface side through the through-hole to the upper surface side without being blocked by the through-hole member. For example, the breeding reef can be stably grounded to the seabed even in the event of a typhoon or storm.

  In order to prevent deposits in seawater from adhering to the through-hole member, and to contribute to extending the life of the through-hole member, silicon is added to the mesh of the through-hole member. It is preferable to apply.

  As described above, according to the breeding reef of the present invention, the Sone Resource Growth Area Protection Network Unit prevents the young plant of the Sone Resource from escaping outside the protection network unit, and the carnivorous marine animals Since entry into the protective net is prevented, a suitable growth environment for the juvenile can be ensured. Moreover, since the algal growth region protection net | network part ensures the tidal current required for the growth of algae, preventing the invasion of algal-eating fish, it can grow algae suitably.

  In other words, it provides an excellent breeding reef that can realize a place particularly suitable for the discharge of juveniles and can form a nuclear algae field suitable as a growth environment for juveniles while preventing drought. can do.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The breeding reef A according to an embodiment of the present invention is used by being set on the sea floor. For example, as shown in FIG. 1 and FIG. 2, resources of roots such as abalone, tocobushi, turban shell, sea urchin, etc. Sone resource breeding block 1 (corresponding to the “growing block” of the present invention), which is mainly intended to grow and proliferate from juvenile X to adult Y, and algae such as arame, chrome, kajime and hondawala -Algae breeding member 2 whose main purpose is to grow and form an algae field; concrete base 3 that is grounded on the sea bottom and supports these soot resource breeding block 1 and algae breeding member 2; An intermediate mounting member 4 (corresponding to the “intermediate mounting portion” of the present invention) disposed between the block 1 and the concrete base 3, and an internal space covered by covering the root resource breeding block 1 and the algal breeding member 2 Growth and multiplication of juvenile X A protective net device 5 that forms a suitable root resource growth region (corresponding to the “growth region” of the present invention; hereinafter referred to as growth region P1) and an algae growth region P2 suitable for algae growth and proliferation, and a concrete base And a through-hole member 6 that can be attached to and detached from a later-described through-hole 31h. Hereinafter, each part is demonstrated concretely.

  As shown in FIG. 3 and the like, the Sone resource breeding block 1 is a concrete having a shape in which a regular quadrangular frustum having a substantially square shape whose lower surface is smaller than the upper surface is continuously integrated under a substantially square plate in plan view. Main body 11 made of a manufactured block is mainly used. And the algae growth member 2 is set to the upper surface so that attachment is possible. In addition, the other roots resource multiplication block 1 can also be attached to the said upper surface. In addition, an anchor bar 12 to be inserted into a block mounting portion 34 described later is embedded in the lower end portion of the main body portion 11 so as to protrude vertically downward. That is, the root resource breeding block 1 is fixed to the concrete base 3 via the intermediate mounting member 4 by the configuration in which the anchor muscle 12 is hooked on the spring washer in the block mounting portion 34. Further, a hemispherical protrusion 13 is formed at the upper end of the main body 11 so as to protrude toward the adjacent soot resource breeding block 1, and the adjacent main body 11 directly collides with the protrusion 13. Prevents chipping and cracking. The protrusion 13 also has a function of preventing the root resource breeding block 1 pivotally attached to the block attachment portion 34 from rotating in the horizontal direction and a function of positioning the adjacent root resource breeding block 1. ing. In addition, a plurality of (four in the illustrated example) bolts 14 are embedded in an upright posture on the upper surface of the main body 11 so that the algal growth member 2 can be detachably attached.

  The algae growth member 2 has two types of concrete plates, a rectangular plate shown in FIG. 3 and a square plate (not shown), both of which are made of resin butterflies with bolts 14 inserted through the through holes 2a formed in the center. The mold nut 23 is detachably fixed to the upper surface of the soot resource breeding block 1. In the present embodiment, only a rectangular plate is used. In addition, the top surface of the algae growth member 2 is formed with unevenness having a reverse gradient, which is a transfer of the shape of natural crushed stone, integrally with the main body portion of the concrete plate, and seaweed B0 such as alame holds the unevenness at the root. It is configured to be easy to wear. In particular, the algae-growing member 2 of the rectangular plate is a hanging type intermediate cultivating method in which a seed thread with spore or zoospore attached to seaweed B0 such as arame is wrapped around the surface irregularities and suspended in the sea to grow seaweed B0. It is suitable for use in a system. Therefore, in the case of this embodiment, the size of the algae growth member 2 is such that the seaweed B0 is less likely to be damaged by herbivores such as sea urchins, snails, sea slugs, etc., such as phlorotannins. As the seaweed B0 grows to 3 to 10 cm by visual observation, which is a size capable of secreting the bitter component, then the algal growth member 2 is pulled up from the sea and attached to the bolt 14 of the root resource growth block 1 on the work boat. Yes.

  As shown in FIGS. 4 and 5, the concrete base 3 is a member having an anchor function for stably installing the breeding reef A on the sea floor, and is a base body 31 integrally formed of concrete (of the present invention). The basic structure is composed of “support” and three support legs 32.

  The base body 31 is made of a concrete flat plate having a generally irregular hexagonal shape in plan view. Specifically, this planar view shape will be described with reference to FIG. 5 (a). The base body 31 cuts out the three corners of a concrete plate having a regular triangle in plan view with an equilateral triangle having the same size. The shape corresponding to the unequal hexagon formed by the remaining part is formed. In other words, the unequal side hexagon which is a plan view shape of the base body 31 has an outer edge in which three substantially equal dimensions (long side 31a) and three substantially equal dimensions (short side 31b) are alternately arranged. Become. Here, one side of an equilateral triangle virtually cut out (reference numeral 31c shown by an imaginary line in the figure (which is substantially the same size as the short side 31b), (One side) is shorter than one third of one side of the original equilateral triangle, and is, for example, about 1 / 3.6 in the present embodiment. It can be installed with very high space efficiency on the ground and on a work ship, not to mention the seabed, and the thickness of the base body 31 is appropriately determined according to the required weight of the concrete base 3. However, in this embodiment, the length is set to be slightly less than half the length of the short side 31b, and a through hole 31h is formed in the center of the base body 31 so as to penetrate the wall thickness up and down. The through hole 31h is the present embodiment. In this case, the two parallel pairs are formed in a rectangular shape in plan view, and each has a tapered peripheral wall extending to the lower end side as shown in Fig. 4 (b). Such a shape corresponds to the drawing taper at the time of molding the concrete base 3. Note that the specific form such as the shape and number of the through holes 31h in plan view is not limited to this, Various changes can also be made depending on the size of the base body 31 and the shape and number of the ridge resource multiplication block 1 placed on the base body 31. Further, the end of the upper surface of the base body 31 close to the short side 31b has a concrete base. A U-shaped hook 33 for suspending 3 with a crane or the like is embedded (see FIG. 1), and a block mounting portion 34 used for mounting the Sone resource breeding block 1 is provided as a through hole 3 in the base body 31. A total of nine (three in the illustrated example) are arranged in three rows along h.The block mounting portion 34 has a plurality of spring washers (not shown) embedded in the upper surface of the base body 31 so as to open. ).

On the other hand, all of the three support legs 32 have substantially the same shape, and the three support legs 32 do not interfere with the through holes 31h of the base body 31 along the three short sides 31b of the outer peripheral edge of the base body 31. Each of them is formed integrally with the base body 31 and has a quadrangular pyramid shape eccentric to the outside. The outer surface of each support leg 32 is flush with the vertical outer surface along the short side 31 b of the base body 31. Moreover, although the height dimension of each support leg 32 can be set suitably, it is set to about 4/5 of the thickness dimension of the base main body 31 in this embodiment. Since the concrete base 3 having the basic configuration as described above needs to be a heavy object having an anchor function on the seabed, in this embodiment, the volume is less than about 3.0 m ³ and the weight is less than about 7 t. In addition, since the concrete base 3 has the above-described configuration, all three support legs 32 are grounded at the same time to have extremely high stability on the sea floor.

  When all the root resource propagation blocks 1 are attached to the concrete base 3 using the intermediate attachment member 4 in this way, as shown in FIG. 2, the adjacent root resource 31 sandwiching the through hole 31h of the base body 31. Between the proliferation blocks 1, the gap 3 s formed between the inclined surfaces (quadratic pyramid surfaces) communicates with the through holes 31 h.

  As shown in FIGS. 6, 7, and the like, the intermediate mounting member 4 includes a thin plate-like substrate portion 41 having a substantially rectangular shape in plan view, and four gap adjusting protrusions 42 protruding from the upper surface of the substrate portion 41. These parts are integrally formed of concrete.

  The substrate portion 41 has both side end portions 41a formed in a substantially U shape in cross section, and the side end portion 41a supports the peripheral portion of the through hole member 6 so as to be slidable. The function as a support part is exhibited. Further, insertion holes 41z into which the anchor muscles 12 of the sock root resource breeding block 1 can be inserted are formed at positions that divide the adjacent gap adjusting projections 42 of the base plate part 41 into approximately equal halves.

  Out of the four gap adjustment protrusions 42, the two inner gap adjustment protrusions 42 (hereinafter referred to as “inner gap adjustment protrusions 421”) have the same shape, The gap adjustment protrusion 42 (hereinafter referred to as “end gap adjustment protrusion 422”) has a symmetrical shape with a center line 41m that crosses the center of the substrate portion 41 in the width direction as an axis of symmetry. is there.

  The inner gap adjusting protrusion 421 is substantially trapezoidal in cross section along the longitudinal direction, and the upper end dimension 421x is substantially equal to the protrusion dimension 13x of the protrusion 13 of the ridge resource breeding block 1. Set the same.

  The end gap adjusting projection 422 has a substantially trapezoidal shape in cross section along its longitudinal direction. The rising surface on the outer side of the end gap adjusting projection 422 and the end surface of the substrate portion 41 are flush with each other.

  As shown in FIGS. 1, 8, 9, and 10, the protective net device 5 includes a columnar member 51 (corresponding to a “columnar portion” of the present invention) erected on the concrete base 3, and these columnar members 51. A protection net 52 (which corresponds to the “protection net” of the present invention) attached by use and a fastener 53 for fastening the protection net 52 to the columnar member 51 are provided. Note that a part of the protective net 52 and the fastener 53 are omitted for the sake of drawing. Hereinafter, each part will be described more specifically.

  The columnar member 51 is erected on the base body 31 of the concrete base 3. In this embodiment, each columnar member 51 is disposed at the end of the plurality of root resource breeding blocks 1 disposed on the base body 31. There are a total of four locations where the Sone resource growth block 1 can be positioned. Each columnar member 51 is formed by embedding an L-shaped steel material in the base body 31 in a state where the L-shaped steel material is erected so that the inner angle side faces inward. A plurality of (six in this embodiment) through-holes 512 are formed in the vicinity of both side edge portions 511 of each columnar member 51 along the rising direction. Each through hole 512 is set to a size that allows the band portion 531 of the fastener 53 to pass therethrough. Moreover, in this embodiment, the crosspiece 513 which connects between the upper end parts of adjacent columnar member 51 and between lower end parts is integrally provided by welding.

  The protective net 52 is made of a synthetic fiber having flexibility, and as shown in FIG. 8 and the like, the upper surface net 521 having substantially the same size as the surface connecting the upper ends of the four columnar members 51. And a total of four standing nets 522 arranged between the side edge portions 511 of the adjacent columnar members 51, respectively, and adjacent to each side of the upper surface net 521 and each side of the upper surface net 521. It is a single unit in which the sides of the upright net 522 are continuous.

  Then, the mesh size of the upper surface mesh 521 is set to a size such that alga-eating fish such as Aigo, Isuzumi and Budai cannot pass through. Further, the standing net 522 is divided into an upper standing net 522a (corresponding to the “algae growth area protection net part” of the present invention) and a lower standing net part 522b (“Sone resource growth area protection” of the present invention). The mesh size of the lower standing net portion 522b can prevent the passage of the juvenile X and prevent the invasion of carnivorous marine animals such as starfish and octopus On the other hand, the mesh size of the upper standing net portion 522a is set larger than the mesh size of the lower standing net portion 522b while allowing the algalivorous fish to pass through. Further, an entry preventing means 523 is provided at the boundary between the lower standing net portion 522b and the upper standing net portion 522a to prevent the young body X from entering the upper standing net portion 522a from the lower standing net portion 522b. . The intrusion prevention means 523 is composed of a plurality of annular members 523a having a substantially ring shape, and has flexibility similar to that of the standing net 522 so that each annular member 523a can swing by, for example, a tidal current. It is made of synthetic fiber.

  Furthermore, in this embodiment, the sides of the upright net 522 that are respectively continuous with the sides of the upper surface net 521 are arranged so that the width dimension of each upright net 522 is smaller than the separation distance between the adjacent columnar members 51. It is set to be shorter than the side of the upper surface net 521 that is continuous with the side of 522, and a region where the upright net 522 is not continuous is formed in the vicinity of each corner of the upper surface net 521 (see FIG. 8). Of the protective net 52, the peripheral edge 52A located at the outer edge of the protective net 52 is set to be thicker than the other parts. In this embodiment, the part where the upper surface net 521 and the standing net 522 are continuous is also set to be thicker than the other parts (see FIGS. 8, 9, and 10). Further, silicon is applied to the entire protective net 52 in order to prevent deposits such as barnacles and shellfish from adhering to the protective net 52.

  Further, in this embodiment, as the fastener 53, a long band portion 531 having a substantially belt-like shape and having a continuous latch formed on one surface, and a hook for connecting to the base end side of the band portion 531 are provided. A so-called insulation lock type binding band provided with a hole 532 is used. The fastener 53 includes a latch (not shown) of the band portion 531 and an engaging claw (not shown) provided in the hook hole portion 532 by inserting the tip end portion of the band portion 531 into the hook hole portion 532. Are made of a general synthetic resin set so as to be engaged with each other. Moreover, the band part 531 of the fastener 53 is set so that it can be cut using a tool having a blade part such as a cutter knife or a scissors.

  As shown in FIG. 1, the through-hole member 6 includes a rigid frame body having a substantially rectangular shape in plan view, and a synthetic fiber net portion having a peripheral portion supported by the frame body. And the mesh dimension of the member 6 for through-holes is set to such an extent that the passage of the juvenile X can be prevented, like the lower standing net portion 522b. Further, the width dimension of the through-hole member 6 is substantially matched with the dimension between the side end portions of the adjacent intermediate mounting members 4. Thereby, it can support to each side edge part 41a of the adjacent intermediate attachment member 4 so that a slide movement is possible. Further, the longitudinal dimension of the through hole member 6 is slightly larger than the longitudinal dimension of the through hole 31h. Furthermore, in this embodiment, silicon is applied to the entire through hole member 6 in order to prevent deposits such as barnacles and shellfish from adhering to the through hole member 6.

  Next, a method for attaching the root resource breeding block 1 of the breeding reef A, the through hole member 6 and the protective net according to the present embodiment, and a method for growing the root resource using the breeding reef A will be described.

  (1) How to attach the Sone resource multiplication block 1

  Hereinafter, a method of attaching the Sone resource multiplication block 1 to the concrete base 3 using the intermediate attachment member 4 will be described.

  First, the intermediate mounting member 4 is placed on the concrete base 3. At this time, the insertion hole 41z of the intermediate mounting member 4 and the block mounting portion 34 of the concrete base 3 are made to coincide with each other. Next, the Sone resource multiplication block 1 is mounted on the intermediate mounting member 4 mounted on the concrete base 3. At this time, the anchor bars 12 of the root resource breeding block 1 are inserted into the block mounting portion 34 of the concrete base 3 through the insertion hole 41z of the intermediate mounting member 4. In this way, attaching the soot resource breeding block 1 to the concrete base 3 using the intermediate mounting member 4 improves the so-called “sitting” of the soot resource breeding block 1 compared to the case where the intermediate mounting member 4 is not used. In addition, it is possible to obtain an effect that it is easy to make the gap between adjacent soot resource breeding blocks 1 constant.

  (2) A method of attaching the through-hole member 6.

  First, the through-hole member 6 is inserted into the side end portion 41a of the adjacent intermediate mounting member 4, and the through-hole member 6 is slid to a position covering all the through-holes 31h. Then, the end portion of the through-hole member 6 and the crosspiece 513 on the lower end side are fastened using a fastener 53. Note that the fastening method of the fastener 53 is substantially the same as the method of attaching the protective net 52 to be described below, and thus the description thereof is omitted.

  (3) A method of attaching the protective net 52.

  Hereinafter, a method for attaching the protective net 52 to the columnar member 51 and the like will be described.

  First, the protective net 52 is placed using the columnar member 51 so as to cover the surface formed by connecting the upper ends of the adjacent columnar members 51 with the upper surface net 521, and is also suspended from each side of the upper surface net 521. The upright nets 522 are arranged between adjacent columnar members 51. In this state, the upper surface mesh 521 is supported by the crosspieces 513 and the columnar members 51, and as shown in FIG. A slight gap is formed between the peripheral portion 52A, which is a portion close to the portion 511, and the side edge portion 511 of the columnar member 51 (see FIG. 5A). Next, the peripheral portion 52 </ b> A of each standing net 522 is fastened to the columnar member 51 using the fasteners 53. Specifically, the band portion 531 of the fastener 53 is at substantially the same height as the through-hole 512 in the through-hole 512 formed in the side edge portion 511 of the columnar member 51 and the peripheral portion 52A of the standing net 522. Next to the mesh, it is inserted into the hook hole 532 (see FIG. 5B), and in this state, by narrowing the band portion 531, the peripheral edge 52A of the standing net 522 is side edge 511 of the columnar member 51. Can be bound and fastened in contact with or in close proximity to each other (see FIG. 10C). In this way, the fastener 53 in the state where the peripheral edge 52A of the upright net 522 is fastened to the columnar member 51 is narrowed down after being inserted into the through hole 512 of the columnar member 51. Movement (at least in a direction substantially perpendicular to the direction of narrowing down) is restricted. Thus, the through-hole 512 formed in the columnar member 51 functions as a member that restricts the movement of the fastener 53 in the fastened state. The peripheral edge 52A of the standing net 522 is fastened to the columnar member 51 by inserting the fasteners 53 through all the through holes 512 formed in the side edge 511 of the columnar member 51 and fastening the peripheral edge 52A of the standing net 522 to the columnar member 51 by the above procedure. The part 52A and the side edge part 511 of the columnar member 51 are connected in close contact. In the present embodiment, the portion where the upper surface net 521 and the standing net 522 are continuous is fastened to the crosspiece 513 by using the fastener 53.

  (4) Release of juvenile X to growth area P1.

  When discharging the juvenile body X, at least a part of the protective net 52 attached to the columnar member 51 and the like as described above is opened by cutting the fastener 53, and the juvenile body X is removed from the opened position. Discharge into the protective net 52. When the discharge is completed, the opened portion is closed with the new fastener 53, and the juvenile X is prevented from escaping. Note that the discharge timing is not limited to this. For example, when the breeding reef A is newly installed, it may be discharged before the protection net 52 is attached to the columnar member 51 or the like.

(5) Opening of lower standing net portion 522b and through-hole member 6 as escape prevention means When a predetermined period has elapsed after discharging the young body X, the fastener 53 is cut to serve as escape prevention means. The lower standing net portion 522b is opened, and the through hole member 6 as the same means is moved to open at least a part of the through hole. Thereby, since it becomes possible for the juvenile X to escape to the non-growth region Q, it is possible to prevent the density in the growth region P1 of the juvenile X that has grown large from becoming unnecessarily high.

  As described above, in the breeding reef A according to the present embodiment, the lower standing net portion 522b prevents the root X of the soot resource from escaping out of the lower standing net portion 522b and is a carnivorous seawater. Since it prevents that an animal penetrate | invades into this lower standing net | network part 522b, the suitable growth environment of the juvenile X can be ensured. Moreover, since the upper standing net | network part 522a ensures the tidal current required for growth of algae, preventing the invasion of a carnivorous marine animal and algae-eating fish, algae can be grown suitably.

  That is, an excellent breeding reef that can realize a place particularly suitable for the discharge of juvenile X and can form a nuclear algae field suitable for the growth environment of juvenile X while preventing drought. A can be provided.

  Further, since silicon is applied to the net yarn of the lower standing net portion 522b and the net yarn of the upper standing net portion 522a, the deposits in the seawater adhere to the protective net portions 522a and 522b. This can also be prevented, and contributes to the extension of the life of each of the protective nets 522a and 522b.

  In addition, an entrance preventing means 523 is provided at the boundary between the lower standing net portion 522b and the upper standing net portion 522a to prevent the root resources from entering the upper standing net portion 522a from the lower standing net portion 522b. Therefore, the entry prevention means 523 can prevent the root resource from entering the upper standing net portion 522a, thereby preventing the root resource from escaping from the mesh of the upper standing net portion 522a.

  In addition, at least three or more columnar members 51 standing up to avoid being arranged in the same straight line are provided, and protective nets 52 are respectively disposed between the adjacent columnar members 51 and are attached to the columnar members 51. A plurality of upright nets 522 that can be attached to and detached from each other are configured, and the lower side of each of the upright nets 522 is set as a lower upright net unit 522b, and the upper side is set as an upper upright net unit 522a. Therefore, the protective net 52 can be easily detached and attached to the columnar member 51. That is, operations such as repair and replacement can be easily performed.

  The protective net 52 further includes an upper surface mesh 521 provided in correspondence with a surface formed by connecting the upper ends of the adjacent columnar members 51, and each side of the upper surface mesh 521 and each side of the upper surface mesh 521 are provided. Since the upper surface net 521 and the plurality of upright nets 522 are made to be a single unit by causing at least a part of the sides of the upright nets 522 adjacent to each other to be continuous with each other, prevention of loss of the protective net 52 and ease of handling And the simplification of the mounting work can be realized.

  In addition, a plurality of root resource growth blocks 1 for growing the juvenile body X are arranged in the growth region P1, and when the plurality of root resource growth blocks 1 are arranged, they are arranged adjacent to each other. Since the gap 3s for growing the roots of the roots is formed between the roots of the base of the roots for growing the roots, the environment suitable for the growth of the roots Can be provided.

  Moreover, the base main body 31 for forming the growth area | region P1 and the algae growth area | region P2 is comprised, and this base main body 31 guides the attachment position of the several roots resource multiplication block 1, and forms the clearance gap 3s. Since the block mounting portion 34 is provided, the mounting performance of the Sone resource breeding block 1 is improved and the environment suitable for the growth of the Sone resource is also provided.

  Further, a plurality of root resource propagation blocks 1 are attached to the base body 31 via the intermediate attachment member 4, and the intermediate attachment member 4 is a gap formed between the adjacent root resource growth blocks 1. Since the gap adjusting protrusion 42 for adjusting the gap for reducing 3s is provided, it is possible to provide a more suitable environment for growing the root resource.

  Further, the base body 31 is configured to be supported by the support legs 32 at a position separated from the seabed, and a through hole 31h is formed so as to penetrate in the thickness direction of the base body 31, and the through hole Since the through-hole member 6 is provided so as to be detachably provided to block the hose 31h, the through-hole member 6 is attached to the through-hole 31h during the growth of the root resource, Since it can be removed when the growth is completed, the root resources can be kept in the growth region P1 during the growth, and when the growth is completed, the through-hole 31h is used to escape from the growth region P1. be able to.

  Moreover, since the side end part 41a which functions as a through-hole member slide support part which supports the peripheral part of the through-hole member 6 so that sliding movement is possible is provided in the intermediate attachment member 4, without using a special member. The through-hole member 6 can be slidably supported.

  Further, since the through-hole member 6 is a mesh formed with a mesh size that can prevent the passage of the juvenile X, the through-hole flow that the base body 31 receives from the lower surface side does not interfere with the through-hole member 6. It is possible to escape to the upper surface side through the hole 31h, and for example, the breeding reef can be stably grounded to the seabed even in the event of a typhoon or storm.

  Further, since silicon is applied to the mesh of the through hole member 6, it is possible to prevent deposits in seawater from adhering to the through hole member 6, and the through hole member 6. Contributes to longer life.

  In addition, since the algae breeding member 2 is detachably attached to the root resource breeding block 1 and is used to grow algae, a good nuclear algae field can be formed. And since the algae growth member 2 has previously prepared seed yarns or grown algae to which algae spores or zoospores are attached, the effect becomes remarkable.

  The present invention is not limited to the embodiment described above.

  For example, the shape, size, number, and the like of each member constituting the breeding reef may be appropriately changed according to the conditions of the sea area in which they are used, the scale of the seaweed beds to be created, and the like.

  Moreover, although the approach prevention means shall consist of several cyclic | annular members 523a, for example, shall be provided if it is a structure which can prevent the entrance of the juvenile X, for example, shall be provided with a plurality of cords that can be fluctuated by the ocean current. It is not limited to the form.

  In addition, the fastener only needs to be able to bind and fasten the objects by wrapping and narrowing between the objects to be fastened. A rope, string, or the like forming a belt shape may be applied.

  Moreover, although the algae growth member 2 is attached to the base body 31 via the root resource growth block 1, it does not prevent the algae growth member 2 from being placed directly on the base body 31 without going through the root resource growth block 1. .

  In addition, the specific shape and size of the base body and legs constituting the concrete base, the specific form of the through-hole formed in the base body, the specific shape and size of the root resource growth block and the algae growth member, Various modifications can be made to the specific configuration of each part such as the number of block mounting parts and the arrangement position without departing from the spirit of the present invention.

  Moreover, although the base main body 31 and the intermediate attachment member 4 are made into a different thing, as shown in FIG. 11, it does not prevent making these base main bodies 31 and the intermediate attachment member 4 integral.

  Note that the present invention is not limited to the embodiment described in detail above, and various modifications can be made without departing from the spirit of the present invention.

The whole perspective view showing the breeding reef in one embodiment of the present invention. Structural cross-sectional view which shows the attachment state of the concrete base in the same embodiment, a soot resource propagation block, and an algae growth member. The perspective view which shows the root root resource growth block and algae growth member in the embodiment. The perspective view which shows the concrete base applied to the breeding reef in the embodiment. The top view and sectional drawing which show the concrete base. The perspective view which shows the intermediate attachment member applied to the breeding reef in the same embodiment. The top view and side view which show the intermediate attachment member. The expanded view of the protection net applied to the breeding reef in the embodiment. The perspective view which shows the principal part of the protection net | network. The figure for demonstrating the attachment method of the protection net | network. The top view and sectional drawing which show the concrete base in other embodiment of this invention.

Explanation of symbols

A ···· Proliferation reef P1 ··· Growth area (Sone resource growth area)
P2 ... Algae growth area 1 ... Sone resource growth block (Growth block)
2 ... Algae breeding member 3s ... Clearance 4 ... Intermediate mounting part (intermediate mounting member)
6 ... Escape prevention means (members for through holes)
31 ... Base (base body)
31h ··· through hole 32 ··· support leg 34 ··· mounting guide (block mounting)
41a... Member sliding support for through hole (side end)
42... Clearance adjustment protrusion 51... Columnar part (columnar member)
52 ... Protective net
521... Upper surface net 522... Standing net 522a... Algae growing area protection net part (upper standing net part)
522b ... Sone resource growth area protection net part (lower standing net part)
523... Preventing means

Claims (12)

It comprises a Sone resource growth region for growing root resources such as abalone and sea urchin, and an algae growth region that is set above the Sone resource growth region and for growing algae, These areas are equipped with protective nets that prevent carnivorous marine animals such as starfish and octopus, and enemies such as seaweed fish such as sea bream, isuzumi, and sea bream, and protect the root resources and algae. A breeding reef consisting of
The protective net is provided corresponding to the algal growth area while continuing to the protective net part of the sour resource growth area provided for the sour resource growth area and the protective net part of the sour resource growth area. An algae growth area protection net part,
The root resource growth area protection net part is formed with a mesh size that can prevent passage of the juveniles, while the algae growth area protection net part is larger than the mesh size of the root resource growth area protection net part. A breeding reef that is open and has a mesh size that can prevent the invasion of the carnivorous marine animals and the algalivorous fish.   The breeding reef according to claim 1, wherein silicon is applied to each of the net threads of the soot resource growing area protection net part and each of the net threads of the algal growth area protection net part.   Prevents the root source from entering the algal growth area protection net from the root resource growth area protection net at the boundary between the root resource growth area protection net and the algal growth area protection net The breeding reef according to claim 1 or 2, further comprising an approach prevention means. It has at least three or more columnar parts standing up to avoid being arranged in the same straight line,
The protective net is configured to include a plurality of standing nets that are respectively arranged between the adjacent columnar parts and attachable to and detachable from the columnar parts. The breeding reef according to any one of claims 1 to 3, wherein the breeding reef is set as a growth area protection net and the upper side is set as the algae growth area protection net. The protective net further comprises an upper surface net provided corresponding to a surface formed by connecting the upper ends of these adjacent columnar parts,
The upper surface net and the plurality of upright nets are made to be a single one by causing at least part of the sides of the upper surface mesh and the sides of the upright mesh adjacent to the respective sides of the upper surface mesh to be continuous with each other. The breeding reef according to claim 4. In the Sone resource growth area, a plurality of growth blocks for growing a juvenile are arranged,
When arranging a plurality of growth blocks, it is characterized in that a gap for growing soy resources is formed between the adjacent growth blocks so that the juvenile or the adult enters. The breeding reef according to any one of claims 1 to 5. It comprises a pedestal for forming the root resource growth area and the algal growth area,
The breeding reef according to claim 6, wherein one or a plurality of the growth blocks are configured to be attached to the pedestal using an intermediate attachment part that is integral with or separate from the pedestal.   The breeding reef according to claim 7, wherein the intermediate attachment portion includes a gap adjustment protrusion for adjusting a gap that reduces a gap formed between adjacent growth blocks. The pedestal is configured to be supported by a support leg at a position spaced from the seabed,
A through-hole is formed so as to penetrate in the thickness direction of the pedestal, and a detachable through-hole member for closing the through-hole is provided. The breeding reef according to claim 7 or 8, wherein:   The breeding reef according to claim 9, wherein a through-hole member slide support portion is provided on the intermediate attachment portion to support a peripheral edge portion of the through-hole member so as to be slidable.   The breeding reef according to claim 9 or 10, wherein the through-hole member is a mesh formed with a mesh size capable of preventing passage of the juvenile.   The breeding reef according to claim 11, wherein silicon is applied to the mesh thread of the through hole member.

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