JP2981968B2 - Breeding reef - Google Patents
Breeding reefInfo
- Publication number
- JP2981968B2 JP2981968B2 JP6194721A JP19472194A JP2981968B2 JP 2981968 B2 JP2981968 B2 JP 2981968B2 JP 6194721 A JP6194721 A JP 6194721A JP 19472194 A JP19472194 A JP 19472194A JP 2981968 B2 JP2981968 B2 JP 2981968B2
- Authority
- JP
- Japan
- Prior art keywords
- breeding reef
- cylindrical
- steel frame
- cylindrical block
- breeding
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Artificial Fish Reefs (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、海底に沈設してウニ、
アワビなどの魚介類を育成増殖する為の増殖礁に係り、
特に海水の流通が良好で、湧昇流も発生させることがで
きて、棲息条件の良好な増殖礁に関する。BACKGROUND OF THE INVENTION This invention relates to sea urchins,
Involved in breeding reefs for breeding and growing abalone and other seafood,
In particular, the present invention relates to a breeding reef that has good habitation conditions because it has good seawater circulation and can generate upwelling currents.
【０００２】[0002]
【従来の技術】従来より魚介類の育成増殖を図る増殖礁
は種々あるが、その中でも特に図６に示すように周面及
び底面にスクリーン材１を張設固設した鋼製箱枠２の内
部に、石３を充填してなる増殖礁４が普及している（先
行技術文献として実公昭５８−３６２７３号がある）。
この増殖礁４は、鋼製箱枠２内に充填した石３の間隙に
魚介類の幼生が沈着したり敵から逃避棲息するのに好適
であり、また石３に海藻類が着生繁茂するので、ここを
餌場として魚介類が蝟集するようになる。しかし、石３
に海藻類が着生繁茂するに伴い海水の流通が減少し、且
つ内部に太陽光が入りにくくなって光合成作用によるプ
ランクトンの増殖が低下し、海域の基礎生産力を高める
ことができない。しかも海水の流通が減少することによ
り、夏季の高温時に於いて対象魚介類に酸素欠乏が生じ
る。2. Description of the Related Art Conventionally, there are various breeding reefs for breeding and growing fish and shellfish. Among them, as shown in FIG. 6, a steel box frame 2 having a screen material 1 stretched and fixed on its peripheral surface and bottom surface is particularly preferred. Inside, a breeding reef 4 filled with a stone 3 is widespread (Japanese Patent Publication No. 58-36273 is a prior art document).
The breeding reef 4 is suitable for the larvae of fish and shellfish to settle in the gaps between the stones 3 filled in the steel box frame 2 and to escape from the enemy, and the seaweeds grow and proliferate on the stones 3. As a result, seafood will gather here. But stone 3
As seaweeds grow and proliferate, the distribution of seawater decreases, and sunlight hardly enters the inside, so that the growth of plankton due to photosynthesis decreases, and the basic productivity of the sea area cannot be increased. In addition, due to a decrease in the distribution of seawater, the target fish and shellfish becomes oxygen deficient at high temperatures in summer.
【０００３】また、海水の流通を増大させる増殖礁とし
ては、湧昇流を発生させる人工魚礁がある。この湧昇流
を発生させる人工魚礁は、種々提案されているが、その
殆んどは、特公平３−８１７６号公報、特開平３−１５
３３０号公報、実開平４−６００５４号公報などに見ら
れるように潮海流を利用して湧昇流を発生する構造物
で、その構造物自体を増殖礁とするものではなく、湧昇
流発生構造物を沈設した広い海域に回遊魚類の蝟集場所
を作ろうとするものである。従って、この種の人工魚礁
は魚介類の増殖礁とはなり得ない。[0003] As a reef for increasing the distribution of seawater, there is an artificial reef that generates an upwelling current. Various artificial reefs that generate this upwelling have been proposed, most of which are disclosed in Japanese Patent Publication No. Hei 3-8176 and Japanese Patent Laid-Open No. Hei 3-15.
No. 330, Japanese Utility Model Application Laid-Open No. 4-60054, and the like, a structure that generates an upwelling current using the tidal current, and does not use the structure itself as a breeding reef but generates an upwelling current. The purpose of this project is to create a gathering place for migratory fishes in a wide sea area where the structures are laid. Therefore, this type of artificial reef cannot be a breeding reef for seafood.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明は、魚介
類の幼生が沈着したり、敵から逃避棲息するのに好適
で、海藻類の着生繁茂により魚介類が蝟集し易いことは
勿論のこと、海水の流通が十分で、湧昇流も発生させる
ことができて、酸素欠乏が生じることがなく、さらに太
陽光が入り易くて光合成作用によるプランクトンの増殖
が促されて海域の基礎生産力を高めることができ、しか
も安定して海底に沈設配列できて、時化の際には揚圧力
を減少できて浮動離散を防止でき、その上単位体積当り
の対象生物の収容量を増大できる増殖礁を提供しようと
するものである。Therefore, the present invention is suitable for the deposition of larvae of fish and shellfish and the escape of enemy from the enemy, and it is a matter of course that fish and shellfish are easily gathered due to the overgrowth of seaweed. In addition, the distribution of seawater is sufficient, upwelling can be generated, oxygen deficiency does not occur, sunlight is easy to enter, plankton multiplication by photosynthesis is promoted, and the basic productivity of the sea area Breeding that can be stably arranged on the seabed, can reduce lifting pressure during aging, prevent floating separation, and increase the capacity of target organisms per unit volume They try to provide reefs.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の増殖礁は、底面にスクリーン材が張設固定さ
れた矩形の鋼製枠内に、周囲に複数の大きな窓孔が穿設
された円筒形ブロックが密着して配列収容されてなるも
のである。円筒形ブロックは、素焼土管や鋼管であるこ
とが好ましい。また、円筒形ブロックは底抜きであるこ
とが好ましい。さらに、鋼製枠内に密着して配列収容さ
れた円筒形ブロックは、隣接するもの同士の高さが互い
に異なるものであることが好ましい。また、鋼製枠内に
密着して配列収容された円筒形ブロックの窓孔は、海水
が流入する方向に向けられていることが好ましい。The breeding reef of the present invention for solving the above-mentioned problem is provided with a plurality of large window holes around a rectangular steel frame having a screen material stretched and fixed on the bottom surface. The provided cylindrical blocks are arranged and housed in close contact with each other. The cylindrical block is preferably an unfired clay pipe or a steel pipe. Further, the cylindrical block is preferably hollow. Further, it is preferable that adjacent cylindrical blocks arranged in close contact with each other in the steel frame have different heights from each other. Further, it is preferable that the window holes of the cylindrical blocks arranged and housed in close contact with the steel frame are oriented in a direction in which seawater flows.
【０００６】[0006]
【作用】上記のように構成された本発明の増殖礁は、海
底に多数沈設配列することにより安定性が保たれて、円
筒形ブロックの破損ならびに波浪による打上げが防止さ
れる。また、円筒形ブロック内に魚介類の幼生が沈着し
たり、敵から逃避して棲息するようになる。特に円筒形
ブロックが、素焼土管の場合は通気性があり、ｐＨは中
性である為、コンブなどの海藻類の着生に富み、且つ繁
茂するので、魚介類が蝟集し易い。円筒形ブロックが鋼
管の場合は、貝類が付着し易く、これの死骸に海藻類が
着生繁茂するので、魚介類が蝟集し易い。また、円筒形
ブロックが底抜きの場合、砂の堆積が防止され、しかも
時化の際には揚圧力を減少させることができる。しかも
増殖礁が上面開放されているので、太陽光が入り易くて
光合成によるプランクトンの増殖が促され、海域の基礎
生産力が高められる。さらに、鋼製枠内に密着して配列
収容された円筒形ブロックの隣接するもの同士の高さが
互いに異なる場合には、強力な渦流の発生が可能とな
り、コンブの着生及びウニ、アワビなどの幼生の沈着が
容易になり、天然採苗も可能となる。また、鋼製枠内に
密着して配列収容された円筒形ブロックの窓孔が、海水
が流入する方向に向けられている場合は、海水がスムー
スに窓孔から円筒形ブロック内に流入し、順次隣接の円
筒形ブロック内を流れ、一部は各円筒形ブロック内で湧
昇流となって流れるので、海水は各円筒形ブロック内で
滞流することが無く、夏季の高温時に於いて対象生物の
酸素欠乏が防止される。さらに増殖礁は海底に多数沈設
配列されるので、円筒形ブロック内に棲息する魚介類が
高温時に生活に不適になった場合、上部開口より出て、
任意の場所まで広範囲に移動し棲息することができる。
然して、本発明の増殖礁は、円筒形ブロックの内外側に
ウニ、アワビなどの対象生物が棲息できるので、増殖礁
の単位体積当りの収容量が従来の石詰め鋼製箱枠の増殖
礁よりも著しく増大する。The breeding reef of the present invention having the above-described structure is arranged in a large number on the seabed to maintain stability, thereby preventing damage to the cylindrical block and launching due to waves. In addition, larvae of fish and shellfish are deposited in the cylindrical block or escape from enemies and inhabit. In particular, when the cylindrical block is an unburned earthen pipe, it is air-permeable and has a neutral pH, so that seaweed such as kelp is rich in epiphytes and prosperous, so that fish and shellfish are easily gathered. When the cylindrical block is a steel pipe, shellfish easily adhere to it, and seaweeds grow and proliferate on the carcasses thereof, so that fish and shellfish easily gather. In addition, when the cylindrical block is hollowed out, accumulation of sand is prevented, and in the case of aging, the lifting pressure can be reduced. Moreover, since the breeding reef is open to the top, it is easy for sunlight to enter, which promotes the growth of plankton by photosynthesis and increases the basic productivity of the sea area. Furthermore, when the heights of adjacent cylindrical blocks closely arranged in a steel frame are different from each other, a strong eddy current can be generated, and the formation of kelp and sea urchin, abalone, etc. Larvae are easily deposited and natural seedlings can be harvested. In addition, when the window holes of the cylindrical blocks arranged and housed in close contact with the steel frame are directed in the direction in which the seawater flows, the seawater smoothly flows into the cylindrical blocks from the window holes, Seawater does not stagnate in each cylindrical block because it flows sequentially in adjacent cylindrical blocks, and partly flows as upwelling in each cylindrical block. Biological oxygen deprivation is prevented. Furthermore, since a large number of reefs are settled on the sea floor, if the fish and shellfish living in the cylindrical block become unsuitable for life at high temperatures, they will emerge from the upper opening,
It can move and live in a wide range to any place.
However, since the breeding reef of the present invention can inhabit target organisms such as sea urchin and abalone inside and outside the cylindrical block, the capacity per unit volume of the breeding reef is greater than that of the conventional breeding reef with a stone-packed steel box frame. Also increase significantly.
【０００７】[0007]
【実施例】本発明の増殖礁の一実施例を図によって説明
すると、図１は増殖礁の外殻体を構成する矩形の扁平な
鋼製枠６を示すもので、この鋼製枠６は四隅の支柱７、
周面中間の支柱７′と、これら支柱７，７′の上端に結
合した上部梁８と、下部に結合した下部梁８′と、中高
部に結合した桟９と、底面で前後に対向する中間の支柱
７′の下部に結合した底梁８″と、底面で前後に対向す
る下部梁８′間に結合したスクリーン材１０とよりな
る。尚、１８は前後の上部梁１３の中間内側面の所定位
置に固設した止め金及び右側の上部梁１３の内側端部に
固設した止め金、１９は右側の上部梁１３の内側面中間
の所定の位置に固設した止め金である。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the breeding reef of the present invention will be described with reference to the drawings. FIG. 1 shows a rectangular flat steel frame 6 constituting an outer shell of the breeding reef. Four corner pillars 7,
A strut 7 'at the middle of the peripheral surface, an upper beam 8 joined to the upper ends of the struts 7, 7', a lower beam 8 'joined to the lower portion, and a bar 9 joined to the middle and high portions, facing the front and rear at the bottom surface. It comprises a bottom beam 8 "connected to the lower part of the middle support 7 'and a screen member 10 connected between lower beams 8' facing the front and rear on the bottom surface. Are fixed at a predetermined position, and are fixed to the inner end of the upper beam 13 on the right side. Reference numeral 19 is a stopper fixed at a predetermined position in the middle of the inner surface of the upper beam 13 on the right side.
【０００８】かかる構造の鋼製枠６内に、図２に示すよ
うに周囲に複数の、本例では等間隔に４個の大きな窓孔
１１が穿設された上下両端開口の素焼土管の円筒形ブロ
ック１２が、図３に示すように密着して千鳥配列に収容
され、止め金１８，１９で動きがとめられている。この
円筒形ブロック１２は、高さが一定のものでも良いが、
図４に示すように隣接するもの同士の高さが互いに異な
るものが好ましい。また、円筒形ブロック１２の窓孔１
１は、図３に示すように海水が流入する方向、即ち鋼製
枠１０の周面に向けられている。図５は、上記実施例の
増殖礁に於ける円筒形ブロック１２を、上下両端開口の
鋼管よりなる円筒形ブロック１２′に代えた増殖礁で、
円筒形ブロック１２′は、高さの高い円筒形ブロック１
２′を２本１組とし、これと高さの低い１本の円筒形ブ
ロック１２′とを千鳥配列に密着して鋼製枠６内に収容
されている。As shown in FIG. 2, in the steel frame 6 having such a structure, a plurality of, in this example, four large window holes 11 are formed at regular intervals, and a cylinder of an unburned earthen clay tube having openings at both upper and lower ends. As shown in FIG. 3, the shaped blocks 12 are housed in a staggered arrangement in close contact with each other, and are stopped by the stoppers 18 and 19. This cylindrical block 12 may have a constant height,
As shown in FIG. 4, it is preferable that the heights of adjacent ones are different from each other. The window hole 1 of the cylindrical block 12
1 is directed to the direction in which seawater flows in, as shown in FIG. 3, that is, to the peripheral surface of the steel frame 10. FIG. 5 is a breeding reef in which the cylindrical block 12 in the breeding reef of the above embodiment is replaced by a cylindrical block 12 'made of a steel pipe with upper and lower ends open.
The cylindrical block 12 'is a cylindrical block 1 having a high height.
A pair of 2's is accommodated in a steel frame 6 in close contact with a single cylindrical block 12 'having a small height and a cylindrical block 12' having a small height.
【０００９】上記のように構成された各実施例の増殖礁
は、平坦な海底に多数沈設配列し、連結して使用され、
しかも鋼製枠６内に配列収容された円筒形ブロック１２
や１２′は密着して抜け出ないように保持されている
為、安定性があって、円筒形ブロック１２，１２′の破
損ならびに波浪による打上げが防止される。そして円筒
形ブロック１２や１２′内には、ウニ、アワビなどの魚
介類の幼生が沈着したり、敵から逃避して棲息するよう
になる。特に素焼土管の円筒形ブロック１２の場合は、
通気性があり、ｐＨは中性である為、コンブなどの海藻
類の着生に富み、且つ繁茂するようになるので、ウニ、
アワビなどの魚介類が蝟集し易い。鋼管の円筒形ブロッ
ク１２′の場合は、貝類が付着し易く、これの死骸に海
藻類が着生繁茂するので、ウニ、アワビなど魚介類が蝟
集し易い。また、円筒形ブロック１２，１２′は、上下
両端開口の底抜きであるので、砂の堆積が防止され、し
かも時化の際には海水が上下に通り抜けるので、揚圧力
を減少させることができ、浮動離散を防止できる。しか
も増殖礁の上面全体が開放されているので、太陽光が入
り易くて光合成によるプランクトンの増殖が促され、海
域の基礎生産力が高められる。[0009] The breeding reef of each embodiment configured as described above is arranged in a large number on the flat seabed, and used by being connected.
Moreover, the cylindrical blocks 12 arranged and accommodated in the steel frame 6
And 12 'are held in close contact with each other so as not to come out, so that they are stable, and damage to the cylindrical blocks 12, 12' and launch by waves can be prevented. In the cylindrical blocks 12 and 12 ', larvae of seafood such as sea urchin and abalone are deposited or escape from enemies and inhabit. In particular, in the case of a cylindrical block 12 of an unfired clay pipe,
Because it is breathable and has a neutral pH, it is rich in epiphytes of seaweeds such as kelp, and because it becomes prosperous, sea urchins,
Abalones and other seafood are easy to gather. In the case of the cylindrical block 12 ′ made of a steel pipe, shellfish easily adhere to the dead body, and seaweeds grow and grow on the carcasses, so that seafood such as sea urchins and abalone easily gather. In addition, since the cylindrical blocks 12 and 12 'are formed with openings at the upper and lower ends, sand is prevented from accumulating, and seawater passes up and down during aging, so that the lifting pressure can be reduced. , Floating discrete can be prevented. Moreover, since the entire upper surface of the breeding reef is open, sunlight is easy to enter, and the growth of plankton by photosynthesis is promoted, and the basic productivity of the sea area is enhanced.
【００１０】さらに上記各実施例のように鋼製枠６内に
密着して収容された円筒形ブロック１２，１２′の隣接
するもの同士の高さが互いに異なると、強力な渦流の発
生が可能となり、コンブの着生及びウニ、アワビなどの
幼生の沈着が容易になり、天然採苗も可能となる。ま
た、鋼製枠６内に密着して配列収容された円筒形ブロッ
ク１２，１２′の窓孔１１が、鋼製枠１０の周面つまり
海水が流入する方向に向けられているので、海水がスム
ースに窓孔１１から円筒形ブロック１２，１２′内に流
入し、順次隣接の円筒形ブロック１２，１２′内を流
れ、一部各円筒形ブロック１２，１２′内で湧昇流とな
って流れるので、海水は各円筒形ブロック１２，１２′
内で滞流することが無く、夏季の高温時に於いて対象生
物の酸素欠乏が防止される。さらに円筒形ブロック１
２，１２′内に棲息するウニ、アワビなどの魚介類が高
温時に生活が不適になった場合、上部開口を出て、任意
の場所まで広範囲に移動し、棲息する。然して円筒形ブ
ロック１２，１２′の外側には、円筒形ブロック間の間
隙に窓孔１１と通じる空間を有するので、ここにもウ
ニ、アワビなどの対象生物が棲息できて、増殖礁の単位
体積当りの収容量が、従来の図６に示す石詰め鋼製箱枠
の増殖礁よりも著しく増大する。Further, if the heights of the adjacent cylindrical blocks 12, 12 'closely housed in the steel frame 6 are different from each other as in the above-described embodiments, a strong vortex can be generated. This facilitates the settlement of kelp and the deposition of larvae such as sea urchins and abalone, and also enables natural seedlings to be collected. Further, since the window holes 11 of the cylindrical blocks 12, 12 'closely arranged and accommodated in the steel frame 6 are directed to the circumferential surface of the steel frame 10, that is, the direction in which the seawater flows, the seawater flows. Smoothly flows into the cylindrical blocks 12, 12 'from the window hole 11, sequentially flows in the adjacent cylindrical blocks 12, 12', and becomes partly upwelling in each of the cylindrical blocks 12, 12 '. As the seawater flows, the seawater flows into each cylindrical block 12, 12 '.
There is no stagnation inside, and oxygen depletion of the target organism is prevented at high temperatures in summer. Further cylindrical block 1
When seafood such as sea urchins and abalones living in 2,12 'become unsuitable for living at high temperatures, they leave the upper opening and move widely to any place and inhabit. However, since there is a space outside the cylindrical blocks 12 and 12 'in the space between the cylindrical blocks, which communicates with the window hole 11, target organisms such as sea urchins and abalone can also inhabit there, and the unit volume of the breeding reef is increased. The storage capacity per hit is significantly increased compared to the conventional breeding reef of the stone-packed steel box frame shown in FIG.
【００１１】[0011]
【発明の効果】以上の説明で判るように本発明の増殖礁
は、魚介類の幼生が沈着したり、敵から逃避棲息するの
に好適で、海藻類の着生繁茂により魚介類が蝟集し易
く、海水の流通が十分に行われて酸素欠乏が生じること
がなく、さらに太陽光が入り易くて光合成作用によるプ
ランクトンの増殖が促されて海域の基礎生産力を高める
ことができ、しかも安定して海底に沈設配列できて、時
化の際には揚圧力を減少でき、浮動離散を防止できる。
また、対象生物の単位体積当りの収容量を増大できる。As can be seen from the above description, the breeding reef of the present invention is suitable for depositing larvae of seafood and escaping from enemies, and the seafood gathers due to the overgrowth of seaweeds. It is easy to distribute seawater, and oxygen deficiency does not occur.In addition, sunlight is easy to enter, plankton multiplication by photosynthesis is promoted, and basic productivity of the sea area can be increased, and it is stable. It can be placed on the seabed and the lifting pressure can be reduced during aging and floating can be prevented.
In addition, the capacity of the target organism per unit volume can be increased.
【図１】本発明の増殖礁の外殻体を構成する鋼製枠を示
す斜視図である。FIG. 1 is a perspective view showing a steel frame constituting an outer shell of a breeding reef of the present invention.
【図２】図１の鋼製枠に配列収容する円筒形ブロックを
示す斜視図である。FIG. 2 is a perspective view showing a cylindrical block arranged and housed in the steel frame of FIG. 1;
【図３】図１の鋼製枠内に図２に示される円筒形ブロッ
クを鋼製枠内に配列収容して構成した本発明の増殖礁の
一実施例を示す平面図である。FIG. 3 is a plan view showing an embodiment of the breeding reef of the present invention in which the cylindrical blocks shown in FIG. 2 are arranged and housed in the steel frame of FIG. 1;
【図４】図１の鋼製枠内に高さの異なる図２の構造の円
筒形ブロックを交互に千鳥配列に収容した状態を示す斜
視図である。4 is a perspective view showing a state in which cylindrical blocks having the structure shown in FIG. 2 having different heights are alternately housed in the steel frame shown in FIG. 1 in a staggered arrangement;
【図５】本発明の増殖礁の他の実施例を示す斜視図であ
る。FIG. 5 is a perspective view showing another embodiment of the breeding reef of the present invention.
【図６】従来の石詰め鋼製箱枠よりなる増殖礁を示す斜
視図である。FIG. 6 is a perspective view showing a breeding reef comprising a conventional stone-packed steel box frame.
６ 鋼製枠 １０ スクリーン材 １１ 窓孔 １２，１２′ 円筒形ブロック 6 Steel frame 10 Screen material 11 Window hole 12, 12 'Cylindrical block
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 貴章 東京都世田谷区駒沢四丁目23番22号 パ ークハイム駒沢203号 (58)調査した分野(Int.Cl.6，ＤＢ名) A01K 61/00 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takaaki Kato 4-23-22 Komazawa 4-chome, Setagaya-ku, Tokyo Parkheim Komazawa 203 (58) Field surveyed (Int. Cl. 6 , DB name) A01K 61/00
Claims (6)
形の鋼製枠内に、周囲に複数の大きな窓孔が穿設された
円筒形ブロックが密着して配列収容されてなる増殖礁。1. A breeding reef comprising a rectangular steel frame having a screen material stretched and fixed to a bottom surface, and a cylindrical block having a plurality of large window holes formed around the rectangular steel frame in close contact arrangement and housed therein.
を特徴とする請求項１記載の増殖礁。2. The breeding reef according to claim 1, wherein the cylindrical block is a clay clay pipe.
徴とする請求項１記載の増殖礁。3. The breeding reef according to claim 1, wherein the cylindrical block is a steel pipe.
特徴とする請求項１〜３のいずれかに記載の増殖礁。4. The breeding reef according to claim 1, wherein the cylindrical block is hollow.
形ブロックの隣接するもの同士の高さが互いに異なるも
のであることを特徴とする請求項１〜４のいずれかに記
載の増殖礁。5. The cylinder block according to claim 1, wherein adjacent cylindrical blocks arranged in close contact with each other in a steel frame have different heights. Breeding reef.
形ブロックの窓孔が、海水が流入する方向に向けられて
いることを特徴とする請求項１〜５のいずれかに記載の
増殖礁。6. The window according to claim 1, wherein the window holes of the cylindrical blocks closely arranged and housed in the steel frame are directed in a direction in which seawater flows. Breeding reef.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194721A JP2981968B2 (en) | 1994-07-27 | 1994-07-27 | Breeding reef |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194721A JP2981968B2 (en) | 1994-07-27 | 1994-07-27 | Breeding reef |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0837991A JPH0837991A (en) | 1996-02-13 |
| JP2981968B2 true JP2981968B2 (en) | 1999-11-22 |
Family
ID=16329147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6194721A Expired - Fee Related JP2981968B2 (en) | 1994-07-27 | 1994-07-27 | Breeding reef |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2981968B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2141685B1 (en) * | 1998-08-17 | 2000-11-16 | Molinuevo Jose Maria Marco | ARTIFICIAL REEF FOR FISH FARMING. |
| JP5213541B2 (en) * | 2008-06-20 | 2013-06-19 | タキロン株式会社 | Coral settlement structure, coral settlement method and coral reef breeding method using the same |
-
1994
- 1994-07-27 JP JP6194721A patent/JP2981968B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0837991A (en) | 1996-02-13 |
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