JP5839500B2 - Feeding bioreef and method for replacing feed bioreef - Google Patents

Description

  The present invention is used by being deposited on the seabed, lake bottom, riverbed, etc., and is capable of promoting the accumulation, breeding and breeding of feed organisms that serve as feed for aquatic products such as fish, and feed biopropagation reefs Relates to the replacement method.

  An example of a conventional fish reef with a feed culture coral is shown in FIG. 7 (see, for example, Patent Document 1). As shown in FIG. 7, the fish reef 1 with a feed culture cage includes a concrete fish reef body 2 formed in a substantially cubic frame shape, and two feeds so as to cover the upper opening of the fish reef body 2. A culture trough 3 is fixedly provided at the upper opening of the fish reef body 2. Each of the two food culture baskets 3 is provided with a lid 3a that can be freely opened and closed, and inside thereof, the food culture material 4 such as waste concrete and crushed stone can be accommodated.

  When the fish reef 1 with the feed culture cage shown in FIG. 7 is set on the seabed, feed organisms are generated (accumulated) in the feed culture material 4 accommodated in the feed culture cage 3. Then, in search of this feed organism, fish are collected on the fish reef 1 with the feed culture cage.

  And since this food culture cage | basket 3 functions as a canopy of the fish reef main body 2, this fish reef 1 with a diet culture cage | basket can also fulfill | perform the function as a fish hideout and a residence.

JP 2002-101784 A

  However, in the conventional fish reef 1 with a feed culture coral shown in FIG. 7, the feed culture material 4 is broken due to breakage, corrosion, etc. over time, or due to various causes such as adhering garbage. The growth effect of fish and the collection and growth effect of fish may be reduced. In this way, if the fish reef 1 with a feed culture coral that has reduced the growth effect of the feed organisms, the fish collection effect and the growth effect is left submerged on the seabed, the fish will not collect in the sea area, It may be a factor that hinders the protection and development of resources.

  Therefore, for example, when the food culture material 4 accommodated in the food culture basket 3 shown in FIG. Even if the material 4 is taken out from the food culture basket 3 and considered to be replaced with another one, the food culture basket 3 opens and closes the lid 3a to replace the food culture material 4 accommodated therein. The lid 3a of the food culture basket 3 cannot be opened and closed when the years have passed, and the food culture material 4 cannot be replaced. Can be considered.

  Moreover, although it can also be considered that the food culture basket 3 in which the food culture material 4 is accommodated is replaced with another food culture basket 3, it is coupled to the lower surface of the edge of the food culture basket 3 shown in FIG. 8. The insert member 5 is embedded in the upper surface of the concrete fish reef body 2, and is not configured to be able to detachably remove the feed culture cage 3 from the fish reef body 2. Thus, the food culture basket 3 cannot be replaced with another one.

  Therefore, the fish reef 1 with a feed culture tub has a configuration that cannot protect and cultivate marine resources over a long period of time.

  The present invention has been made to solve the above-described problems, and is capable of maintaining the growth effect of feed organisms, the collection effect and the growth effect of aquatic products over a certain period of time. An object of the present invention is to provide a feed biological breeding reef and a method for replacing the feed biological breeding reef that can contribute to the fishery industry.

  The method for replacing a feed biological growth reef according to the present invention is provided with one or more substrate material units in which a feed biological growth substrate material is accommodated in a rod-like body, and the one or more substrate material units. In a method for replacing a feed biological breeding reef that is disposed on the seabed, lake bottom, or river bottom, a pulling step of lifting the sedimented biological breeding reef with a ship, and lifting on the ship Replacing the feed biological growth substrate material mounted on the feed biological growth reef with another feed biological growth substrate material; and the feed biological growth reef replaced with another feed biological growth substrate material And a sinking stage for sinking to the bottom of the sea, the bottom of the lake, or the bottom of the river.

  According to the method for replacing a feed biological growth reef according to the present invention, when the feed biological growth substrate material mounted on the feed biological growth reef set on the seabed or lake bottom is replaced with another feed biological growth substrate material. First, the subsidized feed biological breeding reef is lifted by boat. Next, the feed biological growth substrate material mounted on the feed biological growth reef raised on the ship is replaced with another feed biological growth substrate material. Then, the feed biological growth reef replaced with another feed biological growth substrate material is laid on the seabed or lake bottom. In this way, the replacement of the feed biological growth substrate material is completed.

  And the feed biological growth substrate material attached to the feed biological growth reef set on the sea bottom or the lake bottom is broken down due to breakage and corrosion with the passage of time, and various causes such as adhesion of garbage. By this, the growth effect of the feed organism and the collection effect and the growth effect of aquatic products such as fish are reduced, but according to this replacement method of the feed organism growth reef, before those effects fall below a certain level, It can be replaced with another suitable feed bioproliferation substrate material.

  In the method for replacing a feed biological breeding reef according to the present invention, the substrate material unit is detachably attached to the base via a mounting portion, and in the replacement stage, the mounting of the feed biological breeding reef is pulled up on a ship. The substrate material unit attached to the base is replaced with another substrate material unit, and in the setting step, the feed biological reef reef replaced with another substrate material unit is replaced. It can be submerged on the seabed, lake bottom, or riverbed.

  In this way, in the replacement stage, when the attachment part of the feed biological breeding reef lifted on the ship is released and the substrate material unit attached to the base is replaced with another substrate material unit, the substrate is changed on the ship. It is not necessary to take out the feed biological growth substrate material contained in the material unit from the rod body of this substrate material unit and attach another feed biological growth substrate material to the rod material of the substrate material unit. It is possible to perform the replacement work of the feed biological growth substrate material in a simple and short time.

  In the method for replacing a feed biological growth reef according to the present invention, the feed biological growth substrate material is wood containing thinned wood, and the base is a concrete plate-like body, and the mounting portion is It can be set as the structure which has an external thread part and an internal thread part.

In this way, when wood containing thinned wood is used as a feed biological growth substrate material, a large amount of useful food organisms such as shrimp and walnuts are produced in comparison with feed biological growth substrate materials such as stone, roof tile, steel, concrete, and shells. Can be generated. And perforated organisms such as beetles and bark beetles as feed organisms can also inhabit this wood. These useful food organisms such as leaf shrimp and perforated organisms such as beaked beetles feed on fish and other aquatic products. Therefore, fish can be collected early when the feed organism breeding reef is laid. , Can greatly contribute to the fishery industry.

  And the wood that includes thinned wood that is attached to the feed biological breeding reef and is laid on the seabed, lake bottom, etc. will be destroyed by decay, etc., or it will be perforated by beetle, etc., so it will need to be replaced with another wood. Therefore, it is possible to sufficiently use wood containing thinned wood. As a result, forests can be managed appropriately and can greatly contribute to forestry.

  In addition, the process of decay due to decay, etc., of timber containing thinned wood attached to feed biological breeding reefs is almost completely natural reduction, which can contribute to the formation of a recycling society.

  In the method for replacing a feed biological breeding reef according to the present invention, the thickness of the wood including the thinned material may be 10 to 25 cm.

  In this way, wood with a thickness of 10 to 25 cm including thinned wood is easy to obtain because the supply amount is large, so that the cost for obtaining wood can be reduced. In addition, timber with a thickness of less than 10 cm is decayed or eroded by beetles, etc. and collapses in a relatively short period of time, and the replacement period of the timber is shortened and the replacement cost increases. And the wood which is thicker than 25 cm and has a large weight will use a heavy machine for the mounting | wearing and removal work with respect to this feed biological growth reef, and will become difficult.

  In the method for replacing a feed biological breeding reef according to the present invention, in the pulling-up stage, another substrate material unit to be replaced may be loaded on a ship.

  In this case, when the subsidized feed biological breeding reef is lifted on the ship, the substrate material unit attached to the base on the ship is replaced with another substrate material unit loaded on the ship. Can be replaced. As a result, a large number of feed biological breeding reefs that have been submerged on the seabed, lake bottom, etc. can be pulled up sequentially, and feed biological breeding reefs with the substrate material unit replaced can be sequentially deposited on the seabed or lake bottom each time. Therefore, it is possible to maintain a state in which a large number of feed biological growth reefs are laid on the seabed, lake bottom, etc., and the growth effect of feed organisms on the seabed, lake bottom, etc., and the collection effect and the growth effect of fishery products, etc. It can be prevented from decreasing.

  The feed biological growth reef according to the present invention includes one or more substrate material units in which a feed biological growth substrate material is housed in a rod-like body, and a base on which the one or more substrate material units are provided. In the feed biological breeding reef set on the seabed, lake bottom, or river bottom, the base has a hanging part for lifting the feed biological breeding reef set on the seabed, lake bottom, or river bottom. The feed biological growth substrate material provided and mounted on the feed biological growth reef can be replaced with another feed biological growth substrate material.

  When the feed biological breeding reef according to the present invention is set on the seabed, lake bottom, or the like, feed organisms such as tiger shrimp and warekara are generated and propagated on the feed biological growth substrate material accommodated in the rod. Then, aquatic products such as fish can be gathered and propagated on this feed organism breeding reef in search of this feed organism.

Then, when the feed biological breeding reef is laid on the seabed, lake bottom, etc., the feed biological breeding substrate material attached to the feed biological breeding reef collapses due to breakage, corrosion, etc. Depending on various causes such as adhesion, there may be a decrease in the growth effect of feed organisms and the collection and proliferation effect of fish, etc., but before the effect drops below a certain level, Can be replaced with a new feed bioproliferation substrate material.

  When replacing the feed biological growth substrate material mounted on the feed biological growth reef submerged on the seabed or lake bottom with another feed biological growth substrate material, for example, first, the subsidized feed biological growth reef Raise the boat. Next, the feed biological growth substrate material mounted on the feed biological growth reef raised on the ship is replaced with another feed biological growth substrate material. Then, the feed biological growth reef replaced with another feed biological growth substrate material is laid on the seabed or lake bottom. In this way, the replacement of the feed biological growth substrate material is completed.

  In the feed biological breeding reef according to the present invention, the substrate material unit is detachably attached to the base via a mounting portion, and the mounting portion of the feed biological breeding reef is released to be attached to the base. The substrate material unit can be replaced with another substrate material unit.

  According to this feed biological growth reef, the substrate material unit attached to the base can be removed from the base by releasing the attachment portion of the feed biological growth reef. Then, another substrate material unit can be attached to the base by the attachment portion. In this way, when the substrate material unit is replaced with another substrate material unit, the feed biological growth substrate material accommodated in the substrate material unit is taken out from the rod of the substrate material unit on the ship, and another feed material biological growth substrate material is obtained. This eliminates the need to attach the sachet to the rod-like body of the substrate material unit, and makes it possible to easily replace the feed biological growth substrate material on the ship in a short time.

  In the feed biological growth reef according to the present invention, the feed biological growth substrate material is wood containing thinned wood, and the base is a plate-shaped body made of concrete, and the attachment portion is a male screw portion. It can be the structure which has an internal thread part.

  The feed biological breeding reef according to the present invention operates in the same manner as the method for replacing the feed biological breeding reef according to the third invention.

  In the feed biological breeding reef according to the present invention, the thickness of the wood including the thinned material may be 10 to 25 cm.

  The feed biological breeding reef according to the present invention operates in the same manner as the method for replacing the feed biological breeding reef according to the fourth invention.

  According to the method for replacing a feed biological breeding reef according to the present invention and the feed biological breeding reef, the feed biological breeding substrate material attached to the feed biological breeding reef set on the seabed or the lake bottom is changed over time. Even if the proliferation effect of feed organisms and the collection and proliferation effect of fish and other aquatic products may be reduced due to various causes such as breakage and corrosion, or garbage adhering, Before the effect falls below a certain level, it can be replaced with another suitable feed bioproliferation substrate material. Therefore, the growth effect of the feed organism, the collection effect and the growth effect of the aquatic products can be maintained at a certain level or more over a long period of time, and contribution to the fishery industry can be achieved.

  And since it is not necessary to replace the base, the base can be used effectively, and it is economical because the base does not need to be transported by ship.

It is a perspective view which shows the feed biological growth reef which concerns on one Embodiment of this invention. It is an expanded sectional view which shows the attaching part which attaches the base material unit with which the feed biological propagation reef which concerns on the embodiment is provided to the base so that attachment or detachment is possible. It is a figure which shows the state which has sunk the feed biological growth reef which concerns on the embodiment on the seabed. It is a figure which shows the state by which the feed biological propagation reef which concerns on the embodiment was sunk in the seabed. It is a figure for demonstrating the replacement | exchange method of the feed biological growth reef which concerns on the same embodiment. It is a perspective view for demonstrating the replacement | exchange method of the feed biological growth reef which concerns on the same embodiment. It is a perspective view which shows the conventional fish reef with a food culture ridge. FIG. 8 is an enlarged cross-sectional view illustrating a feed culture shark provided in the fish reef with the food culture shark shown in FIG. 7.

  Hereinafter, an embodiment of a feed biological breeding reef and a method for replacing the feed biological breeding reef according to the present invention will be described with reference to FIGS. The feed biological breeding reef 11 shown in FIG. 1 is used by being laid on the sea bottom 12, lake bottom, river bottom, etc., and can promote the accumulation, breeding, and multiplication of feed organisms that serve as feed for fishery products. As shown in FIGS. 3 to 6, the substrate material unit 13 of the feed biological breeding reef 11 set on the seabed 12 or the like can be replaced.

  As shown in the perspective view of FIG. 1, the feed biological breeding reef 11 includes, for example, four substrate material units 13 and a base 15 on which the four substrate material units 13 are detachably attached via attachment portions 14. And. The four substrate material units 13 are provided at the positions of four vertices of a substantially square set on the upper surface of the base 15, and the substrate material units 13 adjacent to each other are arranged at a predetermined interval. Yes.

  The substrate material unit 13 is configured such that a feed biological growth substrate material 16 is accommodated inside a rod-shaped body 17. This feed biological growth substrate material 16 is, for example, wood containing thinned wood such as cedar, cypress, and larch. The wood as the feed biological growth substrate material 16 has a thickness of 10 to 25 cm, preferably 15 to 20 cm. And each timber is formed in a substantially constant length, for example, 1.5-2.0 m.

  Since each of the four bowl-shaped bodies 17 is the same, only the leftmost one shown in FIG. 1 will be described, and description of the other three bowl-shaped bodies 17 will be omitted. The rod-shaped body 17 is made of, for example, iron or steel metal, is formed in a substantially rectangular parallelepiped frame shape, and is mounted on the base 15 in an upright state.

  That is, as shown in FIG. 1, the rod-shaped body 17 has four struts 18 formed to have the same predetermined length, and the positions of four sides in the longitudinal direction (vertical direction) forming the substantially rectangular parallelepiped. The rectangular top opening is closed by a rectangular plate-shaped upper wall 19. A lower wall portion 20 having substantially the same shape and size as the upper wall portion 19 is provided below the upper wall portion 19 with a predetermined distance from the upper wall portion 19. The upper wall portion 19 and the lower wall portion 20 are attached to the four support columns 18 by welding.

  Between the upper wall portion 19 and the lower wall portion 20, wood containing a plurality of (for example, eight) thinned timbers as the feed biological growth substrate material 16 formed in a predetermined length is accommodated in an upright state. Has been.

As shown in FIG. 1, an underfloor space 21 is formed between the lower wall portion 20 and the base 15. The underfloor space 21 allows seawater to flow between the lower wall portion 20 and the base 15, and the feed biological growth substrate material 16 accommodated in the substrate material unit 13 contains a large amount of seawater. It will be possible to increase the chances of contact with. This can promote the accumulation, propagation and growth of feed organisms.

  Further, as shown in FIG. 1, the four columns 18 adjacent to each other are provided with a plurality of bar-shaped horizontal bars 22 arranged horizontally. In the plurality of horizontal rails 22, the feed biological growth substrate material 16 (wood including the thinned material) accommodated in the rod-shaped body 17 formed in a substantially rectangular parallelepiped is formed in each of the four side surface openings of the rod-shaped body 17. It is for confining in this bowl-shaped body 17 so that it may not drop off from the (substantially rectangular opening).

  The plurality of horizontal rails 22 are arranged at predetermined intervals in the vertical direction at the four side opening portions of the bowl-shaped body 17, and the respective horizontal rails 22 are welded to the four columns 18. Attached.

  However, a plurality of horizontal rails 22 are provided in each of the four side opening portions of the rod-shaped body 17 so that the feed biological growth substrate material 16 (wood) does not fall off from each of the side opening portions. Instead of or in addition to the plurality of horizontal rails 22, the four side surface openings may be closed with a net-like body.

  In short, the rod-shaped body 17 shown in FIG. 1 is capable of preventing the feed biological growth substrate material 16 accommodated in the substrate material unit 13 from falling off or floating from the rod-shaped body 17. The feed biological growth substrate material 16 can be brought into contact with a large amount of seawater to promote the accumulation and growth of the feed organisms. What is necessary is just to be able to eat the feed organism which accumulate | stores in the feed biological growth substrate material 16 through each mesh | network.

  As shown in FIG. 6, for example, four first hanging portions 23 are provided on the upper part of the substrate material unit 13. The first suspending portion 23 is used when the substrate material unit 13 is suspended by the crane 24 or the like. As described above, when the substrate material unit 13 is suspended by the crane 24 or the like, the feed biological breeding reef 11 is manufactured on land, and the substrate material unit 13 is replaced on the ship 25 as described later.

  As shown in FIG. 1, the base 15 is a quadrangular plate-like body and is made of concrete. The base 15 is formed in a weight, size, and shape that allow the feed biological breeding reef 11 to be installed on the seabed 12, lake bottom, riverbed and the like without stably floating for a long period of time.

  Next, with reference to FIG.1 and FIG.2, the attachment part 14 which attaches each four substrate material units 13 to the base 15 so that attachment or detachment is possible is demonstrated. A plurality of the attachment portions 14 are used, and the leg portions 26 formed in a rectangular frame shape provided at the lower portion of the substrate material unit 13 shown in FIG. 1 are detachably attached to the base 15. It is something that can be done.

  As shown in FIG. 1, the leg portions 26 are welded and attached to the lower end portions of the four support columns 18 of the bowl-shaped body 17 constituting the substrate material unit 13, and the four leg portions have a predetermined length. The L-shaped angle is formed in a rectangular frame shape.

  The attachment portion 14 includes, for example, an insert plug 27 shown in FIG. 2 and a bolt 28 screwed into the insert plug 27. The insert plug 27 includes an insert main body 29, a sleeve 30, and an annular rubber packing 31.

  As shown in FIG. 2, the leg portion 26 is arranged in a state where the horizontal portion 26 a is in contact with the upper surface of the base 15, and the bolt 28 is inserted into the insertion hole formed in the horizontal portion 26 a. The bolt 28 is inserted through an annular rubber packing 31 and a sleeve 30 embedded in the base 15, and a male screw portion 28 a formed at the tip of the bolt 28 is embedded in the base 15. The insert body 29 is screwed into the female thread portion 29a. By tightening the bolt 28 against the female thread 29a of the insert body 29, the substrate material unit 13 can be detachably and firmly attached to the base 15. The substrate material unit 13 can be removed from the base 15 by removing the bolt 28 from the female thread portion 29 a of the insert body 29.

  However, although the insert plug 27 is used in the attachment portion 14 shown in FIG. 2, a conventionally known anchor plug may be used instead, or a structure other than this may be used.

  Further, as shown in FIG. 1, the second hanging portions 32 are provided at, for example, four places on the upper surface of the base 15. This 2nd suspension part 32 is formed in the shape of a cage, for example, can hook a wire and can suspend the feed biological breeding reef 11 with the crane 24.

  Therefore, by using the second suspension part 32, the feed biological breeding reef 11 can be sunk on the seabed 12 or the like, or the feed biological breeding reef 11 laid on the seabed 12 or the like can be lifted onto the ship 25, for example. it can.

  Next, the operation of the feed biological breeding reef 11 configured as described above will be described. When the feed biological breeding reef 11 shown in FIG. 1 is set on the sea bottom 12 or the lake bottom, feed organisms such as leaf shrimp and warekara are generated on the feed biological growth substrate material 16 accommodated in each of the four rods 17. Multiply. Then, aquatic products such as fish can be collected and propagated on the feed organism breeding reef 11 in search of this feed organism.

  As shown in FIG. 1, when wood containing thinned wood is used as the feed biological growth substrate material 16, compared to feed biological growth substrate materials such as stone, roof tile, steel, concrete, shells, etc. It is possible to generate a large amount of useful feed organisms. And perforated organisms such as beetles and bark beetles as feed organisms can also inhabit this wood. And, since useful feed organisms such as leaf shrimp and perforated organisms such as beak beetles feed on fishery products such as fish, it is possible to collect fish and the like at an early stage from when the feed organism breeding reef 11 is set. Can contribute greatly to the fishery industry.

  Next, referring to FIG. 3 to FIG. 6, a method for sinking the feed biological breeding reef 11 shown in FIG. 1 on the sea bottom 12 or the lake bottom, and a large number of feed biological breeding reefs 11 set on the sea bottom 12 or the lake bottom. A method of replacing the feed biological growth substrate material 16 attached to is described.

  When the feed biological breeding reef 11 is set on the sea bottom 12 or the lake bottom, first, a plurality of feed biological breeding reefs 11 shown in FIG. 1 are manufactured. Next, as shown in FIG. 3, the manufactured plurality of feed biological breeding reefs 11 are loaded on the ship 25 and transported to the sea area to be set. Then, for example, using the crane 24, the feed biological breeding reefs 11 are laid one by one on the predetermined seabed 12 or the like. And such a process is performed repeatedly.

  FIG. 4 shows a large number of feed biological breeding reefs 11 laid in a predetermined place such as the sea bottom 12, and these numerous feed biological breeding reefs 11 are aligned vertically and horizontally along the bottom surface of the sea bottom 12, for example. It has been. In this way, the setting work of the feed biological breeding reef 11 is completed.

  Next, with reference to FIG. 3 to FIG. 6 and the like, a method of replacing the feed biological growth substrate material 16 mounted on a large number of feed biological growth reefs 11 set on the sea bottom 12 or the lake bottom will be described. First, a large number of substrate material units 13 shown in FIG. 1 are manufactured. This manufactured new substrate material unit 13 is a state in which the feed biological growth substrate material 16 (wood including the thinned material) is accommodated inside the rod-like body 17 and is not attached to the base 15. is there.

  Then, as shown in FIG. 5, a plurality of new substrate material units 13 are loaded on the ship 25 and moved to the sea area where a large number of feed biological breeding reefs 11 are set. Then, for example, using the crane 24, the old feed biological breeding reefs 11 set on the seabed 12 and the like are pulled up one by one on the ship 25 (pulling stage).

  Next, as shown in FIG. 6, the attachment portion 14 of the old feed biological breeding reef 11 pulled up on the ship 25 is released on the ship 25 (with the bolts 28 removed) and attached to the base 15. The four old substrate material units 13 are replaced with another four new substrate material units 13 on the ship 25 (replacement stage).

  Next, as shown in FIG. 5, the old feed biological breeding reef 11 that has been pulled up from the new feed biological breeding reef 11 on the ship 25 that has been replaced with four new substrate material units 13 is laid. (Sinking stage). And such a process is performed repeatedly.

  In this way, as shown in FIG. 4, a large number of new feed biological breeding reefs 11 to be set up this time are arranged with many old feed biological breeding reefs 11 aligned vertically and horizontally on the bottom surface of the seabed 12 or the like. They are arranged in the same state at the original predetermined place. In this way, the setting work of the new feed biological breeding reef 11 is completed.

  However, a large number of new feed biological breeding reefs 11 to be sunk this time may be aligned and arranged in the vicinity of a predetermined location such as the sea bottom 12 where a large number of old feed biological breeding reefs 11 have been laid.

  As shown in FIGS. 3 to 6 and the like, according to the method for replacing the feed biological growth substrate material 16 mounted on a large number of feed biological growth reefs 11 set on the sea bottom 12 or the lake bottom, the sea bottom 12 or the lake bottom, etc. The old feed biological growth substrate material 16 attached to the old feed biological growth reef 11 laid in the ground is broken due to damage and corrosion over time, and various causes such as adhesion of dust Even if the growth effect of feed organisms and the collection and growth effect of fish and other aquatic products are reduced by the above, before the effect drops below a certain level, another suitable new feed biological growth substrate The material 16 can be replaced.

  Therefore, with respect to a large number of feed biological growth reefs 11 laid on the seabed 12 or the like, the growth effect of the feed organisms, the collection effect of the aquatic products, and the growth effect are maintained to a certain level continuously over a long period of time. Can contribute to the fishery industry.

  Since the base 15 does not need to be replaced, the base 15 can be used effectively, and the base 15 does not need to be transported by the ship 25 and is economical.

  And in the replacement | exchange stage of the substrate material unit 13, as shown in FIG. 5, the attachment part 14 of the feed biological growth reef 11 pulled up on the ship 25 is cancelled | released, and four old attached to the base 15 When the substrate material unit 13 is replaced with four different new substrate material units 13, the old feed biological growth substrate material 16 contained in the old substrate material unit 13 on the ship 25 is replaced with the old substrate material unit 13. It is not necessary to take out from the rod-shaped body 17 of the material unit 13 and to attach another new feed biological growth substrate material 16 to the rod-shaped body 17 of the original substrate material unit 13, so that the feed biological growth on the ship 25 is eliminated. The replacement work of the substrate material 16 can be easily performed in a short time.

  In addition, as described above, when wood containing thinned wood is used as the feed biological growth substrate material 16 shown in FIG. 1, compared to feed biological growth substrate materials such as stones, roof tiles, and shells, leafy shrimp, beetle, etc. are useful. A large amount of feed organisms can be generated. And since these useful feed organisms serve as food for fish and the like, fish and the like can be collected at an early stage from the time when the feed organism breeding reef 11 is laid, which can greatly contribute to the fishery industry.

  And the wood that includes thinned wood that is attached to the feed biological breeding reef 11 and is laid on the seabed 12 or the lake bottom is destroyed by decaying or pierced by beetle, etc. It is necessary to replace it, and the use of timber containing thinned wood can be fully planned. As a result, forests can be managed appropriately and can greatly contribute to forestry.

  Furthermore, the process of decay due to decay of the timber containing the thinned wood attached to the feed biological breeding reef 11 is almost completely natural reduction type, which can contribute to the formation of a recycling society.

  And as shown in FIG. 1, the thickness of the timber containing the thinning material used as the feed biological growth substrate material 16 is 10 to 25 cm, and the thinning material of such thickness is supplied. Since the amount is easy to obtain, the cost for obtaining wood can be reduced. In addition, timber with a thickness of less than 10 cm is decayed or eroded by beetles, etc. and collapses in a relatively short period of time, and the replacement period of the timber is shortened and the replacement cost increases. And the wood which is thicker than 25 cm and has a large weight will use a heavy machine for the operation | work of the mounting | wearing and removal with respect to this feed biological growth reef 11, and will become difficult.

  In addition, if the thickness of the timber containing the thinned material used as the feed biological growth substrate material 16 is 10 to 25 cm, such timber will collapse in 2 to 3 years at the earliest and 5 in the long one. Expected to remain for more than a year. Therefore, it is preferable to set the replacement period of the feed biological growth substrate material 16 set on the seabed 12 or the like according to the properties and size of the wood used.

  Further, as shown in FIG. 5, when a new substrate material unit 13 to be replaced is loaded on the ship 25 and the old feed biological breeding reef 11 that has been laid is pulled up on the ship 25, the ship On 25, the old substrate material unit 13 attached to the base 15 can be replaced with another new substrate material unit 13 loaded on the ship 25. As a result, a number of old feed biological breeding reefs 11 that have been submerged on the sea floor 12 or lake bottom are sequentially pulled up, and new feed biological breeding reefs 11 in which the substrate material unit 13 has been replaced are sequentially replaced with the sea bottom 12 or Can be laid on the bottom of the lake. Therefore, it is possible to maintain a state in which a large number of feed biological breeding reefs 11 are set on the sea bottom 12 or the lake bottom, the effect of breeding feed organisms on the sea bottom 12 or the lake bottom, the collection effect of fishery products and the like, and It can prevent the proliferation effect from decreasing.

  However, in the above embodiment, as shown in FIG. 1, wood such as thinned wood is used as the feed biological growth substrate material 16, but instead of this, stone, tile, steel, concrete, or shells are used. can do. And when using stone, tile, steel materials, etc. as a feed biological growth substrate material in this way, it is necessary to form the rod-shaped body 17 so that these feed biological growth substrate materials do not fall off from the rod-shaped body 17. is there.

  And the feed biological growth substrate material 16 accommodated in the rod-shaped body 17 is good also as what combined wood, stone, tile, steel materials, etc. In addition, some of the four substrate material units 13 attached to the base 15 shown in FIG. 1 contain wood, and some contain stones, tiles, steel materials, and the like. You may be allowed to.

  Moreover, in the said embodiment, although the bowl-shaped body 17 was made into the substantially rectangular parallelepiped, it is good also as a substantially cylindrical body with which the opening other than this, for example, a polygonal column, or the upper and lower openings was obstruct | occluded. The point is that the feed biological growth substrate material 16 accommodated in the inside does not fall off from the rod-like body 17 and any fish can enter the rod-like body 17.

  Furthermore, in the said embodiment, as shown in FIG. 1, although the base 15 was made into the square plate-shaped body, it is good also as other than this, for example, a polygonal plate-shaped body, or a disk-shaped body. In short, it is only necessary that the feed biological breeding reef 11 can be installed on the seabed 12, the lake bottom, the riverbed and the like without stably floating for a long time.

  In the above embodiment, the substrate material unit 13 is replaced as a method for replacing the feed biological growth substrate material 16, but the feed biological growth substrate material 16 may be replaced by other methods.

  For example, an opening is formed in the upper surface or side surface of the rod-shaped body 17 shown in FIG. 1, and a door that can be opened and closed is provided in the rod-shaped body 17, and the feed biological growth accommodated in the inside is provided. Only the feed biological growth substrate material 16 may be replaced by allowing the substrate material 16 to be taken in and out from the top surface opening or the side surface opening. The door is provided with locking portions such as bolts and nuts so that the closed state can be maintained.

  This door prevents the feed biological growth substrate material 16 accommodated in the rod-like body 17 from dropping off from the rod-like body 17, and fish eats the feed organism generated in the feed biological growth substrate material 16. It is preferable to have a large number of gaps so that it is possible.

  And although the rod-shaped body 17 of the said embodiment was made from iron or steel, it may replace with this and may be made from stainless steel or synthetic resins, such as FRP. In this way, since the bowl-shaped body 17 and the mounting portion 14 do not rust, the bowl-shaped body 17 can be easily attached to and detached from the base 15 and the door provided on the bowl-shaped body 17 can be easily opened and closed. Therefore, the workability for replacing the feed biological growth substrate material 16 can be improved.

  Moreover, in the said embodiment, although it was set as the structure which provided the four substrate material units 13 in the base 15, instead of this, it may be set as the structure which provided the number of the substrate material units 13 other than four in the base 15. Good.

  Furthermore, in the above embodiment, as shown in FIG. 1, the upper wall portion 19 and the lower wall portion 20 are rectangular plate-like bodies, but a large number of through holes are formed in the upper wall portion 19 and the lower wall portion 20. You may use what was formed. The large number of these through-holes increase the chance that the feed biological growth substrate material 16 accommodated in the substrate material unit 13 comes into contact with a large amount of seawater and promotes the accumulation and growth of the feed organisms. The food organism that accumulates on the food organism growth substrate material 16 can be eaten through a large number of through holes.

  In addition, when many through-holes are formed in the upper wall part 19 and the lower wall part 20, stones other than wood, tile, steel materials, etc. are used as the feed biological growth substrate material 16 accommodated in the substrate material unit 13 It is preferable to do. This is because, in wood, it is considered that a piece of wood generated when it decays due to decay or the like floats through a large number of through holes formed in the upper wall portion 19 and the lower wall portion 20.

As described above, the method for replacing the feed biological breeding reef and the feed biological breeding reef according to the present invention maintains the growth effect of the feed organism, the collection effect of the aquatic product, and the growth effect to a certain level over a long period of time. And has an excellent effect that can contribute to the fishery industry, and is suitable for application to such a feed biological breeding reef and a method for replacing the feed biological breeding reef.

DESCRIPTION OF SYMBOLS 11 Feed biological breeding reef 12 Sea bottom 13 Substrate material unit 14 Mounting part 15 Base 16 Feed biological breeding substrate material 17 Rod-like body 18 Support | pillar 19 Upper wall part 20 Lower wall part 21 Underfloor space 22 Horizontal crosspiece 23 First hanging part 24 Crane 25 Ship 26 Leg part 26a Horizontal part of leg part 27 Insert plug 28 Bolt 28a Male thread part 29 Insert body 29a Female thread part 30 Sleeve 31 Rubber packing 32 Second suspension part

Claims (7)

Feed biological growth substrate material Ri formed is accommodated in the basket-like body, and two or more substrates material units lowered portion hanging on each is provided, removably pre SL 2 or more substrate material units spaced apart from one another In the method for replacing a feed biological breeding reef, comprising a base attached via an insert plug or an anchor plug to the seabed, lake bottom, or riverbed.
A pulling-up stage in which the feed biological breeding reef being laid is lifted by a ship;
The substrate material unit mounted on the bait organisms increase殖礁was pulled on board, to release the attachment by the insert plug or anchor plug is attached to the base, Ru change another said substrate material unit A replacement phase;
A method for replacing a feed biological breeding reef, comprising: a step of sinking the feed biological breeding reef replaced by another substrate material unit on a seabed, a lake bottom, or a riverbed. The bait organism growth substrate material, bait organisms increase殖礁method replacement according to claim 1, characterized in that the timber containing the thinned wood. The method for replacing a feed biological breeding reef according to claim 2, wherein the thickness of the wood containing the thinned wood is 10 to 25 cm. The method for replacing a feed biological breeding reef according to claim 2 or 3, wherein in the pulling-up stage, another substrate material unit to be replaced is loaded on a ship. Feed biological growth substrate material Ri formed is accommodated in the basket-like body, a first hook member and the two or more substrates member unit provided in each of the previous SL 2 or more substrate material units spaced apart from one another In a feed biological breeding reef with a base that is detachably attached via an insert plug or an anchor plug, and is laid on the seabed, lake bottom, or riverbed,
The base is provided with a second hanging part for lifting the feed biological breeding reef submerged in the seabed, lake bottom, or riverbed,
The substrate material unit mounted on the feed biological breeding reef is configured to be able to be replaced with another substrate material unit by releasing the attachment to the base by the insert plug or the anchor plug . Feeding biological growth reef characterized by. The bait organism growth substrate material, bait organisms increase殖礁according to claim 5, characterized in that the timber containing the thinned wood. The feed biological breeding reef according to claim 6, wherein the thickness of the wood containing the thinned wood is 10 to 25 cm.

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