JP3087925B2 - Seedling method and seedling vessel for seaweeds using ultra-rigid concrete - Google Patents
Seedling method and seedling vessel for seaweeds using ultra-rigid concreteInfo
- Publication number
- JP3087925B2 JP3087925B2 JP04125750A JP12575092A JP3087925B2 JP 3087925 B2 JP3087925 B2 JP 3087925B2 JP 04125750 A JP04125750 A JP 04125750A JP 12575092 A JP12575092 A JP 12575092A JP 3087925 B2 JP3087925 B2 JP 3087925B2
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- Japan
- Prior art keywords
- concrete
- seaweed
- plate
- ultra
- spores
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Cultivation Of Seaweed (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は超硬練コンクリートを利
用した海藻類の栽苗方法及び栽苗器に関し、特には水槽
内に敷設された超硬練コンクリートの板体の空隙内に
藻、海草等の海藻類の胞子又は遊走子を付着させて成育
させるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a plant for growing seaweed using ultra-hardened concrete, and more particularly to a method for growing algae in a space of a plate of ultra-hardened concrete laid in an aquarium. It grows by attaching spores or zoospores of seaweeds such as seaweed.
【０００２】[0002]
【従来の技術】海中で岩盤などに生える藻、海草等が成
育してくると、小さな海老、貝、魚類が集まるので、こ
れら小さな生物を食する中形生物が集り、更にこれら中
形生物を食する大形生物が集まる。このような繰り返し
によって海藻類に対して多くの魚介類が集まるので、こ
れらの魚介類の資源が増加することとなる。2. Description of the Related Art When algae, seaweeds, and the like that grow on the bedrock grow in the sea, small shrimps, shellfish, and fish gather, so medium-sized organisms that eat these small organisms gather. Large creatures to eat gather. As a result of such repetition, many fish and shellfish gather against the seaweed, so that the resources of these fish and shellfish increase.
【０００３】しかしながら、近時は近海の沿岸部に多く
の工業廃水が流入して海水が汚染され、磯焼けが進み、
魚介類の餌となる海藻類が不足しはじめている現状にあ
る。そこで近年、官公民が一体となって人為的に海藻類
を育成させるために、磯掃除による胞子又は遊走子の付
着面の造成、割石や海中に人工の魚礁を設置して、この
人工の魚礁に藻、海草等の根付けを行い、海に海藻類を
取り戻そうとする試みがなされている。[0003] However, recently, a large amount of industrial wastewater has flown into the coastal area near the sea, polluting the seawater, and progressing in the sea burning.
There is a shortage of seaweeds that feed on fish and shellfish. In recent years, in order for the public and private sectors to unite to artificially grow seaweed, the surface of spores or zoospores has been created by cleaning the rocks, artificial stone reefs have been installed in broken stones and underwater, and this artificial fish reef has been installed. Attempts have been made to root the algae, seaweed, and the like in order to restore seaweeds to the sea.
【０００４】[0004]
【発明が解決しようとする課題】その試みとして現在
は、海中から海藻類の親苗を採取し、これを天然石に括
りつけて海中に投入すること、或は海中に沈設した人工
魚礁に根付けをすることが行われている。しかしなが
ら、天然石に括りつける方法では親苗がすぐに魚、海老
等に食べられてしまったり、潮流によって流されてひっ
くり返ってしまう等の問題がある。一方沈設した人工魚
礁等に根付けをする方法では、使用する人工魚礁として
一般に生コンクリート、鋳鋼、陶磁器、プラスチック等
の造形体が主であって、表面が平らで、しかもつるつる
した状態であるため、表面に海藻類の親苗が胞子を放出
しても着生しにくく、又原生動物や細菌によって攻撃さ
れたり、浮泥によって胞子が埋没したりして生存するこ
とが困難なことが多く、表面には青のり等が着生するの
みである。即ち、海藻類を根付けするためには親苗から
放出された胞子又は遊走子が均一に、安全に、強固に固
着する器質が要求されるのである。また、付着しても生
育の過程において海流によってこれらの藻、海草等が流
されてしまうことが多く、定着率が低いという問題点が
ある。更に親苗が胞子を放出する時期が限定されている
ため、根付の時期も限定される問題点がある。At present, attempts have been made to collect parent seedlings of seaweed from the sea and tie them to natural stones before putting them into the sea, or to root them in artificial reefs submerged in the sea. That is being done. However, the method of tying to a natural stone has problems such as that the parent seedling is immediately eaten by fish, shrimp, etc., or is turned over by the tide. On the other hand, in the method of rooting in a submerged artificial reef etc., the artificial reef used is generally a shaped body such as ready-mixed concrete, cast steel, ceramics, plastic, etc., the surface is flat, and it is in a slippery state, Even if the seedlings of seaweed release spores on the surface, they do not easily settle, and are often difficult to survive because they are attacked by protozoa or bacteria, or spores are buried by floating mud. There are only blue glue and the like set on. In other words, in order to root the seaweed, there is a need for a spore or zoospore released from the parent seedling to be uniformly, safely and firmly fixed. Also, even if they adhere, these algae, seaweed, and the like are often washed away by the ocean current during the growth process, and there is a problem that the fixing rate is low. Furthermore, since the time when the parent seedling releases spores is limited, the time for rooting is also limited.
【０００５】更に従来の海藻類の栽苗器は円型の塩化ビ
ニール管や化学繊維のロープの器材が多く、これらの器
材は中間育成後、海藻礁や魚礁に結着することが困難で
ある。またコンクリートブロックの栽苗器も提供されて
いるが、中間育成の管理が難しく、又沖出しの簡便さに
かけている。更にこのコンクリートブロックの栽苗器は
管理の困難さから早い時期に沖出しが行われるため、台
風等の荒天にさらされたり、夏期においては成長停止で
あるため期魚介類の食害にあうこと多い。Further, conventional seaweed seedlings are often made of circular vinyl chloride pipes or ropes made of chemical fiber, and it is difficult to attach these equipments to seaweed reefs and fish reefs after intermediate growth. . Although concrete block seedling seedlings are also provided, it is difficult to manage the middle breeding. In addition, seedling vessels of this concrete block are often exposed to stormy weather, such as typhoons, because they are out of sea early due to difficulties in management, and they are often hurt by seasonal fish and shellfishes because they stop growing in the summer. .
【０００６】また、従来の栽苗器は海藻類の天然の胞子
又は遊走子の付着を前提としているものが多く、そのた
めに有効成分を栽苗器に塗布したり、表面を胞子が付着
するように整型している。しかし、これらの方法では目
的とする海藻類を確実に付着させることは困難である。[0006] Further, many conventional seedlings are based on the attachment of natural spores or zoospores of seaweeds. For this purpose, an effective ingredient is applied to the seedlings or the spores adhere to the surface. It is shaped. However, it is difficult to reliably attach the target seaweed with these methods.
【０００７】そこで本発明はこのような従来の海藻類の
人工的育成が有している課題を解消して、効率の良い海
藻類の栽苗方法及び栽苗器を得ることを目的とするもの
である。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems of the conventional artificial cultivation of seaweeds and to obtain an efficient method of planting seaweeds and a seedling vessel. It is.
【０００８】[0008]
【課題を解決するための手段】本発明は上記の目的を達
成するために、混練した際に賦形した形がそのまま保持
される超硬練コンクリートを使用して、内部に連続した
空隙を有するように成形した所定形状の超硬練コンクリ
ートの板体の前記空隙に、海藻類の胞子又は遊走子を付
着させて所定の水槽内で一定期間中間成育させたものを
海底に固定した超硬練コンクリートを利用した海藻類の
栽苗方法を提供する。また、混練した際に賦形した形が
そのまま保持される超硬練コンクリートを使用して、内
部に連続した空隙を有するように成形した所定形状の超
硬練コンクリートの板体を所定の水槽内に敷設し、該水
槽内に海水を一定の流速を有して流入口から流入させ、
該流入口近傍に海藻類の親苗を固定して、流入する海水
により親苗の胞子又は遊走子を水槽内に分散させて超硬
練コンクリートの板体の空隙に付着させて育成する超硬
練コンクリートを利用した海藻類の栽苗方法を提供す
る。更に、混練した際に賦形した形がそのまま保持され
る超硬練コンクリートを使用して、内部に連続した空隙
を有するように成形した所定形状の超硬練コンクリート
の板体から成り、内部の空隙に海藻類の胞子又は遊走子
を付着させることのできる超硬練コンクリートを利用し
た海藻類の栽苗器を提供する。そして、前記超硬練コン
クリートの板体は、セメント２０〜２５重量％中に所定
のメッシュに粉砕された石灰石、珪石等の粒状骨材を７
５〜８０重量％、セメント凝結材を０〜０．６重量％、
残部水分を添加して一体成形されている構成を提供す
る。According to the present invention, in order to achieve the above object, the shape formed when kneading is maintained as it is.
The spores or zoospores of seaweed are adhered to the voids of the plate of the ultra-hardened concrete having a predetermined shape formed so as to have continuous voids therein by using the ultra-hardened concrete to be formed. A method of planting seaweeds using ultra-rigid concrete in which a medium grown for a certain period in a water tank is fixed on the seabed is provided. Also, the shape formed when kneading is
Using a super-hardened concrete that is held as it is, a plate of a super-hardened concrete having a predetermined shape formed so as to have a continuous void therein is laid in a predetermined water tank, and seawater is kept constant in the water tank. Flow from the inlet with a velocity of
Flow inlet near the parent seedlings seaweed is fixed to, the sea water flowing to the spores or zoospores parental seedlings by attaching empty gap of the plate bodies of cemented carbide milling concrete by dispersing in the water tank breeding super A method of planting seaweed using rigid concrete is provided. Furthermore, when kneading, the shape formed is kept as it is.
That by using the carbide kneading concrete, a plate of cemented carbide milling concrete molded predetermined shape so as to have a continuous voids therein, be deposited spores or zoospores algae inside the air gap The present invention provides a seaweed seedling incubator using super-hardened concrete. The plate member before Symbol carbide kneading concrete, limestone ground to a predetermined mesh in 20 to 25 wt% cement, granular aggregates such as silica stone 7
5 to 80% by weight, 0 to 0.6% by weight of cement setting material,
Provided is a structure that is integrally formed by adding residual moisture.
【０００９】[0009]
【作用】上記構成の本発明によれば、海藻類の胞子又は
遊走子は、混練した際に賦形した形がそのまま保持され
る超硬練コンクリートの板体の内部の空隙に侵入して付
着し、所定の水槽内で一定期間中間成育することがで
き、充分に成育した後に海底に固定されるため、確実に
繁茂させることができる。そのため、最も困難である中
間育成を人工的に確実に行うことができる。また、海底
において、その周囲を充分に空間を持たせた網や金枠体
等で囲むことにより、より確実に成長させることができ
て、藻場づくりを効果的に行うことができる。According to the present invention having the above constitution, spores or zoospores of seaweed are kept as they are when kneaded.
It can penetrate and adhere to the voids inside the plate of ultra-rigid concrete and can grow for a certain period of time in a given water tank, and after it has grown sufficiently, it is fixed to the seabed, so that it grows reliably. Can be. Therefore, the most difficult intermediate cultivation can be performed artificially and reliably. In addition, in the seabed, net or gold frame which gave enough space around it
By enclosing them with the like , it is possible to grow more reliably, and it is possible to effectively make a seaweed bed.
【００１０】[0010]
【実施例】以下図面に基づいて本発明の一実施例を説明
する。図１は本発明にかかる超硬練コンクリートを利用
した海藻類の栽苗方法を実施するための装置の全体を示
す一部破断外観図である。１は水槽であり、ガラス製、
プラスチック製、鉄製からなり、海藻類の養殖に充分な
容量と適当な形状を有する。２は混練した際に賦形した
形がそのまま保持される超硬練コンクリートを使用して
成形された超硬練コンクリートの板体からなる栽苗器で
あり、内部に連続した空隙４を有して図２に示す直方体
状等の所定形状に成形されている。図示の例では１５ｃ
ｍ×１０ｃｍ×１ｃｍのものである。なお、その表面は
凹凸状に形成されていて、原生動物や細菌等の攻撃から
海藻類の胞子を保護し、更に浮泥が胞子を覆うことを防
ぐことができる。この超硬練コンクリートの板体からな
る栽苗器２の一又は複数を水槽１の内底部に相互に若干
の隙間を有するように敷設する。水槽１の側面には海水
を一定の流速を有して流入させる流入口３が形成されて
おり、この流入口３の近傍に図示しない親苗を適宜固定
する。そして、流入口３から海水を流入させる構成であ
る。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partially broken external view showing an entire apparatus for carrying out a method for planting seaweeds using ultra-hardened concrete according to the present invention. 1 is a water tank made of glass,
It is made of plastic and iron, and has a sufficient capacity and a suitable shape for aquaculture of seaweed. 2 shaped when kneaded
Using super-hard concrete that keeps its shape
It is a seedling container made of a molded super-hardened concrete plate, and has a continuous space 4 inside and is formed into a predetermined shape such as a rectangular parallelepiped as shown in FIG. 15c in the example shown
m × 10 cm × 1 cm. In addition, the surface is formed in an uneven shape, so that spores of seaweeds can be protected from attack by protozoa, bacteria and the like, and furthermore, floating mud can be prevented from covering the spores. One or more seedlings 2 made of a plate of this super-hard concrete are laid on the inner bottom of the water tank 1 so as to have a slight gap therebetween. An inflow port 3 through which seawater flows at a constant flow rate is formed on a side surface of the water tank 1, and a parent plant (not shown) is appropriately fixed near the inflow port 3. And it is the structure which flows in seawater from the inflow port 3.
【００１１】海藻類の養殖に際しては流入口３の近傍に
固定された親苗が放出する胞子又は遊走子は流入口３か
ら流入する海水によって水槽１内に均一に満遍なく分散
されて、水槽１内に敷設された超硬練コンクリートの板
体からなる栽苗器２の内部に連続した空隙４に侵入して
着生して成育することとなり、根付が強固であり、しか
も成育が早い。なお、海藻類の胞子又は遊走子は上記の
ような流入口３からの海水の流れを利用することなく、
他の方法あるいは他の場所で任意の方法により超硬練コ
ンクリートの板体からなる栽苗器２の内部に連続した空
隙４に侵入させて着生してもよい。When cultivating seaweed, spores or zoospores released by the parent plant fixed near the inlet 3 are uniformly and uniformly dispersed in the water tank 1 by the seawater flowing from the inlet 3. The seedlings 2 made of a plate of super-hardened concrete laid on the ground are invaded into the continuous gaps 4 and grow and grow, so that the roots are strong and the growth is fast. In addition, spores or zoospores of seaweeds do not use the flow of seawater from the inlet 3 as described above,
The seedlings 2 made of a plate of ultra-hardened concrete may be allowed to penetrate into the continuous gaps 4 and be formed by another method or another method by an arbitrary method.
【００１２】そして、ある程度の大きさに海藻類が成育
すると、超硬練コンクリートの板体からなる栽苗器２を
水槽１から引き上げて海中の適当な場所、例えば岩盤、
或は魚礁等に釘着する等適宜の手段で固定して設置す
る。この設置された海藻類は既に成育し、超硬練コンク
リートの板体２の空隙４に強固に根付されているので、
潮流等によって流されることがない。また、周囲の状況
により海藻類を魚介類の食害等から守るため、その周囲
を充分に空間を持たせた網や金枠等体で囲む。そのた
め、この海藻類によって小さな海老、貝、魚類が集まる
ので、これら小さな生物を食する中形生物が集り、更に
これら中形生物を食する大形生物が集まる。このような
繰り返しによって藻場づくりができ、魚介類の資源を増
加させることができる。When the seaweeds grow to a certain size, the seedling incubator 2 composed of a plate of super-hard concrete is pulled out of the water tank 1 and is placed in an appropriate place in the sea, for example, a bedrock.
Alternatively, it is fixed and installed by appropriate means such as nailing to a fish reef or the like. Since this installed seaweed has already grown and is firmly rooted in the voids 4 of the plate 2 made of ultra-rigid concrete,
It will not be swept away by tidal currents. Further, in order to protect the seaweeds from damage by seafood and the like depending on the surrounding conditions, the surroundings are surrounded by a net or a metal frame having a sufficient space. For this reason, small shrimps, shellfish, and fish gather due to the seaweed, so that medium-sized organisms that eat these small organisms gather, and large-sized organisms that eat these medium-sized organisms also gather. By such repetition, a seaweed bed can be created, and the resources of fish and shellfish can be increased.
【００１３】この超硬練コンクリートの板体からなる栽
苗器２は、セメント中に所定量の石灰石、珪石等の粒状
骨材を添加し、かつ、必要に応じてセメント凝結材、表
面安定材を添加して混練して成形されるものである。こ
の混練した際に、賦形した形がそのまま保持される、即
ち手で握って形ができる程度の賦形性を有していること
が湿態強度等の点から適当である。上記石灰石、珪石等
の粒状骨材及びセメント凝結材、表面安定材のセメント
への混入率は特に限定されるものではなく、夫々の漁場
に適した多孔率を有する超硬練コンクリートを作成する
ために、前記各成分の含有率を適宜実験的に選択するこ
とが出来る。The seedling incubator 2 made of a plate of super-hardened concrete is prepared by adding a predetermined amount of granular aggregates such as limestone or silica stone to cement and, if necessary, setting cement cement and surface stabilizer. Is kneaded and molded. When kneaded, it is appropriate from the viewpoint of wet state strength and the like that the shaped shape is maintained as it is, that is, it has a shapeability such that the shape can be grasped by hand. The above-mentioned limestone, granular aggregates such as silica stone and cement aggregates, the mixing ratio of cement to the surface stabilizer is not particularly limited, and in order to produce ultra-hard concrete having a porosity suitable for each fishing ground. In addition, the content of each of the above components can be appropriately selected experimentally.
【００１４】好ましい実施例としては、セメント２０〜
２５重量％中に所定のメッシュに粉砕された石灰石、珪
石等の粒状骨材（例えば７号砕石程度）を７５〜８０重
量％、セメント凝結材を０〜０．６重量％、残部水分を
添加して一体成形した超硬練コンクリートを用いるとよ
く、得られた超硬練コンクリートの板体からなる栽苗器
２の強度及び透水性がともに良好となり、空隙内部に侵
入した海藻類の胞子が着生しやすい。そこで、上記石灰
石、珪石等の粒状骨材及びセメント凝結材と水分との混
合割合を、表１に示した配分例に基づいて調整し、３種
類のサンプルを製造した。In a preferred embodiment, cement 20 to
In 25% by weight, 75-80% by weight of granular aggregates (for example, about 7 crushed stones) such as limestone and silica stone crushed into a predetermined mesh, 0-0.6% by weight of cement setting material, and the remaining moisture are added. It is preferable to use a super-hardened concrete integrally molded, and the strength and water permeability of the seedling incubator 2 made of a plate of the obtained super-hardened concrete are both good, and the spores of the seaweed that have invaded the inside of the void are reduced. Easy to settle. Then, the mixing ratio of the above-mentioned granular aggregate such as limestone and silica stone and the cement coagulant with the water was adjusted based on the distribution example shown in Table 1, and three kinds of samples were manufactured.
【００１５】[0015]
【表１】 [Table 1]
【００１６】上記表１に基づいて製造したサンプル１，
２，３に関し、夫々１日経過後の圧縮強度、２８日経過
後の圧縮強度及び透水性を測定した結果を表２に示す。
なお、多孔率を測定するためにその透水性を測定した。
透水性が良好であるほど多孔率も高いこととなる。Samples 1 and 2 manufactured based on Table 1 above
Table 2 shows the results of measurements of the compressive strength after 1 day, the compressive strength after 28 days, and the water permeability of the samples 2 and 3, respectively.
The water permeability was measured to measure the porosity.
The better the water permeability, the higher the porosity.
【００１７】[0017]
【表２】 [Table 2]
【００１８】表２のサンプル１は、透水性が２９ｇ／ｃ
ｍ2・ｍｉｎであって、３個のサンプル中で透水性が最
も良好であり多孔率が高いが、１日経過後及び２８日経
過後の圧縮強度が、３個のサンプル中最も弱い。従って
圧縮強度が上記のサンプル１以下に弱くなると、長期の
使用中に波浪により造型体が破壊される惧れがあるの
で、セメントの混合割合の下限はサンプル１のセメント
量から２０％が適当である。一方サンプル３は、１日経
過後及び２８日経過後の圧縮強度が３個のサンプル中最
も大きく、長期の使用中にあっても波浪による破壊が発
生しないが、透水性が３個のサンプル中最も少なく、海
藻類の胞子を着生させる空隙が少ない。従ってこの透水
性がサンプル３以下に少なくなると、多孔率が低くなり
藻、海草類の付着後の定着率が弱くなる惧れがあり、か
つ、混合時の粘性が大きくなりすぎて、混合物の型内へ
の詰め込み作業が困難になるので、セメントの混合割合
の上限は２５％が適当である。またセメントの混合割合
が決定されると、必然的に珪石等粒状骨材の混合割合も
決定されて、この混合割合は表１のサンプル１，３から
７５〜８０重量％が適当である。更にセメント凝結材は
必要に応じて添加すれば良いため、その混合割合は０〜
０．６重量％が適当である。一方表１のサンプル２は強
度、多孔率の面でともに良好であり、海藻類の胞子を着
生させる超硬練コンクリートとしては３個のサンプルの
中で最も適している。Sample 1 in Table 2 has a water permeability of 29 g / c.
m 2 · min, the best water permeability and the highest porosity among the three samples, but the compressive strength after 1 day and 28 days is the weakest among the three samples. Therefore, if the compressive strength is weaker than that of the sample 1, the molded body may be broken by waves during long-term use. Therefore, the lower limit of the cement mixing ratio is appropriately 20% from the cement amount of the sample 1. is there. On the other hand, sample 3 has the highest compressive strength after 1 day and after 28 days among the three samples and does not break due to waves even during long-term use, but has the lowest water permeability among the three samples. There are few voids on which seaweed spores can be formed. Therefore, if the water permeability is less than or equal to sample 3, the porosity may decrease, and the fixation rate after adhesion of algae and seaweeds may be weak. Since the work of filling the cement becomes difficult, the upper limit of the mixing ratio of cement is appropriately 25%. When the mixing ratio of cement is determined, the mixing ratio of granular aggregates such as silica is inevitably determined, and the mixing ratio is appropriately 75 to 80% by weight based on samples 1 and 3 in Table 1. Further, since the cement setting agent may be added as needed, the mixing ratio is 0 to
0.6% by weight is suitable. On the other hand, Sample 2 in Table 1 is good in both strength and porosity, and is most suitable among the three samples as a super-hardened concrete on which spores of seaweed are formed.
【００１９】そして、上記構成の超硬練コンクリートの
板体からなる栽苗器２を使用してカジメの胞子付けを行
い、室内の水槽で中間育成を行った後、この栽苗器１２
個を水深８ｍに沈設した海藻礁に固着し、その経過を観
察したところ、食害もなく短期間で全長３０ｃｍ〜４０
ｃｍに成長した。The seedlings 2 made of a plate of super-hardened concrete having the above-mentioned structure are used to attach spores of scallop and to perform intermediate growth in an indoor water tank.
The individual was fixed on a seaweed reef submerged at a depth of 8 m, and its progress was observed.
cm.
【００２０】[0020]
【発明の効果】以上詳細に説明した本発明によれば、養
殖設備内において流入口の近傍に親苗を固定して放出す
る胞子又は遊走子を流入する海水によって水槽内に分散
するため、均一に満遍なく分散させることができる。ま
た、胞子は水槽内に敷設された超硬練コンクリートの板
体からなる栽苗器の内部に連続した空隙に侵入して着生
するため、根付が強固にされ、海藻類の着生が極めて迅
速であり、かつ、付着後の成育も順調に進行する。According to the present invention described in detail above, spores or zoospores that fix and release parent seedlings near the inflow port in the aquaculture facility are dispersed in the aquarium by the incoming seawater. Can be evenly distributed. In addition, spores penetrate and grow in continuous voids inside a seedling vessel made of a super-rigid concrete plate laid in an aquarium, so that the roots are solidified and the growth of seaweed is extremely high. It is quick, and the growth after attachment proceeds smoothly.
【００２１】そして、ある程度の大きさに海藻類が成育
すると、超硬練コンクリートの板体からなる栽苗器を水
槽１から引き上げて海中の適当な場所、例えば岩盤、或
は魚礁等に釘着する等適宜の手段で固定して設置する。
この設置された海藻類は既に成育し、超硬練コンクリー
トの板体の空隙に強固に根付されているので、潮流等に
よって流されることがない。そのため、予め網や金枠等
で保護しておけば魚や伊勢海老等に成育途中において食
べられることがなく、海藻類を増加させることができ
る。そして、成育後はこの海藻類によって小さな海老、
貝、魚類が集まるので、これら小さな生物を食する中形
生物が集り、更にこれら中形生物を食する大形生物が集
まる。このような繰り返しによって魚介類の資源を増加
させることができるて、短期間に確実に藻場を形成する
ことができる。また、本発明によれば海藻類を養殖設備
内で成育させることができるため、海中で直接親苗を移
植するのに比較して効率が良く、時期的な制約もない。
更に、板体が超硬練コンクリートのみを用いて構成され
ているため、通常の生コンクリートを用いた場合に比し
てコンクリートから灰汁が抜け易くなり、構造的にも充
分な強度が得られる上、長期使用時にあっても劣化する
ことがない等の大きな効果が得られる。When the seaweeds grow to a certain size, the seedlings made of the plate of super-hard concrete are pulled out of the water tank 1 and nailed to an appropriate place in the sea, for example, a bedrock or a fish reef. It is fixed and installed by appropriate means.
The installed seaweeds have already grown and are firmly rooted in the voids of the plate of ultra-rigid concrete, so that they are not washed away by tides or the like. Therefore, if it is protected by a net or a metal frame in advance, it will not be eaten by the fish or the lobster during the growth, and the seaweed can be increased. And after growing, this seaweed makes small shrimp,
Since shellfish and fish gather, medium-sized organisms that eat these small organisms gather, and large organisms that eat these medium-sized organisms also gather. Such repetition can increase the resources of fish and shellfish, and can surely form a seaweed bed in a short time. In addition, according to the present invention, since seaweeds can be grown in a culture facility, the efficiency is higher than when directly transplanting parent seedlings in the sea, and there is no time limit.
Furthermore, since the plate is made of only super-hardened concrete, lye is easily released from the concrete as compared with the case of using ordinary ready-mixed concrete, and sufficient structural strength is obtained. A great effect is obtained, such as no deterioration even during long-term use.
【図１】本発明にかかる超硬練コンクリートを利用した
海藻類の種苗育成方法にかかる装置の全体を示す一部破
断外観図。FIG. 1 is a partially broken external view showing an entire apparatus according to a method for growing seaweeds and seedlings using ultra-hardened concrete according to the present invention.
【図２】超硬練コンクリートの板体の斜視図。FIG. 2 is a perspective view of a plate of super-hardened concrete.
【図３】図２の部分拡大図。FIG. 3 is a partially enlarged view of FIG. 2;
１…水槽 ２…超硬練コンクリートの板体からなる栽苗器 ３…流入口 ４…空隙 DESCRIPTION OF SYMBOLS 1 ... Water tank 2 ... Seedling container consisting of a plate of super-hardened concrete 3 ... Inflow port 4 ... Void
フロントページの続き (72)発明者 岡林 一雄 高知県高知市萩町２丁目２番25号 東洋 電化工業株式会社内 (56)参考文献 実開 昭56−73259（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) A01G 33/00 A01K 61/00 Continued on the front page (72) Inventor Kazuo Okabayashi 2-2-2-25 Hagi-machi, Kochi City, Kochi Prefecture Toyo Denka Kogyo Co., Ltd. (56) References Jikai Sho 56-73259 (JP, U) (58) Field (Int. Cl. 7 , DB name) A01G 33/00 A01K 61/00
Claims (5)
される超硬練コンクリートを使用して、内部に連続した
空隙を有するように成形した所定形状の超硬練コンクリ
ートの板体の前記空隙に、海藻類の胞子又は遊走子を付
着させて所定の水槽内で一定期間中間成育させたものを
海底に固定することを特徴とする超硬練コンクリートを
利用した海藻類の栽苗方法。1. The shape formed when kneading is maintained as it is
The spores or zoospores of seaweed are adhered to the voids of the plate of the ultra-hardened concrete having a predetermined shape formed so as to have continuous voids therein by using the ultra-hardened concrete to be formed. A method of planting seaweeds using ultra-rigid concrete, comprising fixing a medium grown for a certain period of time in a water tank to the seabed.
される超硬練コンクリートを使用して、内部に連続した
空隙を有するように成形した所定形状の超硬練コンクリ
ートの板体を所定の水槽内に敷設し、該水槽内に海水を
一定の流速を有して流入口から流入させ、該流入口近傍
に海藻類の親苗を固定して、流入する海水により親苗の
胞子又は遊走子を水槽内に分散させて超硬練コンクリー
トの板体の空隙に付着させて育成することを特徴とする
超硬練コンクリートを利用した海藻類の栽苗方法。2. The shape formed during kneading is maintained as it is.
Using a super-hardened concrete to be formed, a plate of a super-hardened concrete having a predetermined shape formed so as to have a continuous void therein is laid in a predetermined water tank, and seawater is supplied at a constant flow rate in the water tank. The spores or zoospores of the parent seedlings are dispersed in the aquarium by the seawater, and the spores or zoospores of the parent algae are fixed in the vicinity of the inflow port.栽苗method of seaweed using cemented carbide milling concrete, characterized in that it is deposited on the air gap to cultivate.
ント２０〜２５重量％中に所定のメッシュに粉砕された
石灰石、珪石等の粒状骨材を７５〜８０重量％、セメン
ト凝結材を０〜０．６重量％、残部水分を添加して一体
成形されている請求項１又は２記載の超硬練コンクリー
トを利用した海藻類の栽苗方法。 3. The plate of ultra-hardened concrete comprises 75 to 80% by weight of a granular aggregate such as limestone or silica stone ground to a predetermined mesh in 20 to 25% by weight of cement, and 0 to 25% by weight of cement aggregate. 0.6 wt%,栽苗how algae using carbide kneading concrete according to claim 1 or 2, wherein are integrally molded by adding the remainder water.
される超硬練コンクリートを使用して、内部に連続した
空隙を有するように成形した所定形状の超硬練コンクリ
ートの板体から成り、該板体の内部の空隙に海藻類の胞
子又は遊走子を付着させたことを特徴とする超硬練コン
クリートを利用した海藻類の栽苗器。4. The shape formed during kneading is maintained as it is.
Use carbide milling concrete being, a plate of cemented carbide milling concrete molded predetermined shape so as to have a continuous voids therein, spores or migration of seaweed empty gap inside of the plate body A seedling vessel for seaweeds using super-stiffened concrete, characterized by having children attached thereto.
ント２０〜２５重量％中に所定のメッシュに粉砕された
石灰石、珪石等の粒状骨材を７５〜８０重量％、セメン
ト凝結材を０〜０．６重量％、残部水分を添加して一体
成形されている請求項４記載の超硬練コンクリートを利
用した海藻類の栽苗器。5. The super-hardened concrete plate comprises 75 to 80% by weight of a granular aggregate such as limestone or silica stone ground to a predetermined mesh in 20 to 25% by weight of cement and 0 to 0% by weight of cement setting material. 0.6 wt%, planted seedlings instrument seaweed using carbide kneading concrete according to claim 4, characterized in that integrally formed with the addition of the remainder water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04125750A JP3087925B2 (en) | 1992-04-17 | 1992-04-17 | Seedling method and seedling vessel for seaweeds using ultra-rigid concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04125750A JP3087925B2 (en) | 1992-04-17 | 1992-04-17 | Seedling method and seedling vessel for seaweeds using ultra-rigid concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05292847A JPH05292847A (en) | 1993-11-09 |
| JP3087925B2 true JP3087925B2 (en) | 2000-09-18 |
Family
ID=14917887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04125750A Expired - Lifetime JP3087925B2 (en) | 1992-04-17 | 1992-04-17 | Seedling method and seedling vessel for seaweeds using ultra-rigid concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3087925B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601220A (en) * | 2018-12-17 | 2019-04-12 | 山东省地质矿产勘查开发局第地质大队（山东省第地质矿产勘查院） | Method for greening quartz high-steep slope in arid and rainless area |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006034271A (en) * | 2004-07-22 | 2006-02-09 | Minoru Sakamoto | Method for producing outside-carbonized wood and method for gathering fishes, gathering shellfishes or growing edible algae with fish bank, alga collector (hibi) |
| JP5924605B2 (en) * | 2015-05-08 | 2016-05-25 | 住友大阪セメント株式会社 | How to grow algae |
-
1992
- 1992-04-17 JP JP04125750A patent/JP3087925B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601220A (en) * | 2018-12-17 | 2019-04-12 | 山东省地质矿产勘查开发局第地质大队（山东省第地质矿产勘查院） | Method for greening quartz high-steep slope in arid and rainless area |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05292847A (en) | 1993-11-09 |
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