JP2003169563A - Artificial fish bank - Google Patents
Artificial fish bankInfo
- Publication number
- JP2003169563A JP2003169563A JP2001373935A JP2001373935A JP2003169563A JP 2003169563 A JP2003169563 A JP 2003169563A JP 2001373935 A JP2001373935 A JP 2001373935A JP 2001373935 A JP2001373935 A JP 2001373935A JP 2003169563 A JP2003169563 A JP 2003169563A
- Authority
- JP
- Japan
- Prior art keywords
- artificial fish
- fish reef
- container
- artificial
- surplus
- 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.)
- Pending
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
- Artificial Fish Reefs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水中に設置して魚
類の生育しやすい環境を人工的に整えることのできる人
工魚礁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial fish reef that can be installed in water to artificially prepare an environment in which fish easily grow.
【０００２】[0002]
【従来の技術】従来の人工魚礁はコンクリート製の箱状
をなすブロックが一般的で、これを水中に設置して魚類
が姿を隠すことができる環境を与え、魚類がそこに棲み
着きやすくしている。また近年は木材、主に間伐材を井
桁状などに組み上げた魚礁が、コンクリート製のものに
比べて藻が付着しやすくより魚の好む環境となり、集魚
性が高いことがわかってきている。2. Description of the Related Art Conventional artificial fish reefs are generally concrete box-shaped blocks that are installed in water to provide an environment in which fish can hide and make them easier to settle in. ing. In recent years, it has become clear that fish reefs made up of timber, mainly thinned timbers in the shape of a cross beam, are more likely to have algae attached to them and become a more fish-friendly environment than concrete ones, and have a high fish-collecting property.
【０００３】[0003]
【発明が解決しようとする課題】魚礁に間伐材を用いる
ことは、用途が少なく産業廃棄物となってしまう間伐材
の有効利用を促進する意味で画期的ではあるが、水中に
設置すると潮流などにより折れたりちぎれたりして魚礁
から離散し、ほぼ２年以内で完全に魚礁は消滅してしま
う。魚礁から離れた間伐材（折れたりちぎれたりしたも
の）は水上を漂う浮遊丸太となって船舶、漁網などに被
害を与えることとなる。このようなことを防ぐために、
全ての間伐材を金網で覆ってから魚礁を組み立てること
が提案されている。しかし、全ての間伐材を金網で覆う
作業は煩雑であり、コスト高となってしまう。The use of thinned wood for fish reefs is epoch-making in terms of promoting the effective use of thinned wood, which has little use and becomes industrial waste. For example, the fish reef breaks off and breaks off from the fish reef, and the fish reef disappears completely within about two years. Thinned timber (broken or torn) away from fish reefs will cause floating logs floating on the water to damage ships and fishing nets. To prevent this,
It is proposed to cover all thinned wood with wire mesh before assembling the fish reef. However, the work of covering all the thinned wood with a wire net is complicated and the cost becomes high.
【０００４】本発明は、間伐材などの林産余材を、低コ
ストで容易に魚礁として利用できる人工魚礁を開発する
ことを課題としてなされたものである。An object of the present invention is to develop an artificial fish reef in which surplus timber from forest such as thinned wood can be easily used as a fish reef at low cost.
【０００５】[0005]
【課題を解決するための手段】本発明は、有孔面材によ
り筒状に形成され、筒壁に筒内外を連通する貫通穴を有
する容器内に林産余材、貝殻、石材、ロープから選択さ
れる１種以上を含む充填物を充填してなることを特徴と
する人工魚礁である。この人工魚礁は筒状で筒壁に貫通
穴を有する形状なので、魚が自由に魚礁内に入り込むこ
とができる。容器内に充填される充填物のうち、間伐材
や杉皮などの林産余材及びロープは藻が付着しやすく、
魚が棲息しやすい自然に近い環境となるので集魚性がき
わめて高い。また、産業廃棄物となってしまう林産余材
や貝殻を充填材として有効利用することができる。容器
を構成する有孔面材は、金網、プラスチックネット、孔
あき鋼板、孔あきコンクリート板などの多数の孔が形成
された面材である。[MEANS FOR SOLVING THE PROBLEMS] The present invention is selected from forest surplus materials, shells, stones, and ropes in a container formed by a perforated surface material in a cylindrical shape and having a through hole communicating with the inside and outside of the cylindrical wall. The artificial fish reef is characterized by being filled with a filling containing at least one of the above. Since this artificial fish reef has a tubular shape with a through hole in the tubular wall, fish can freely enter the fish reef. Among the filling materials filled in the container, algae are liable to adhere to forest surplus materials such as thinned wood and cedar skin and rope,
Since the environment is close to nature where fish can easily inhabit, the ability to collect fish is extremely high. In addition, forest surplus materials and shells that become industrial waste can be effectively used as fillers. The perforated face material forming the container is a face material having a large number of holes such as a wire net, a plastic net, a perforated steel plate, and a perforated concrete plate.
【０００６】本発明の容器は四角筒状とするのが製造が
容易で低コストである。容器内部には、間伐材を井桁形
状にして収納することができる。間伐材は容器内に収納
されているので、たとえ折れたりちぎれたりしても容器
内に留まり、魚礁が消滅しにくく、また、浮遊丸太とし
て離散することもない。The container of the present invention is easily manufactured at low cost when it is formed in a rectangular tube shape. Thinned timber can be stored in the container in the shape of double cross. Since the thinned wood is stored in the container, it stays in the container even if it is broken or torn, the fish reef does not easily disappear, and it does not separate as floating logs.
【０００７】また本発明は、有孔面材により筒状に形成
され、内部に林産余材、貝殻、石材、ロープから選択さ
れる１種以上を含む充填物を充填した容器を縦方向に間
隔を開けて複数設置することを特徴とする人工魚礁であ
る。この人工魚礁は筒状の容器が間隔を開けて複数段設
置されているので、魚が自由に魚礁内に入り込むことが
できる。容器内に充填される充填物のうち、間伐材や杉
皮などの林産余材及びロープは藻が付着しやすく、魚が
棲息しやすい自然に近い環境となるので集魚性がきわめ
て高い。また、産業廃棄物となってしまう林産余材や貝
殻を充填材として有効利用することができる。Further, according to the present invention, a container which is formed in a tubular shape by a perforated surface material and which is filled with a filler containing at least one selected from forest surplus materials, shells, stones, and ropes is longitudinally spaced. It is an artificial fish reef that features multiple open openings. This artificial fish reef has cylindrical containers arranged in multiple stages at intervals, so that fish can freely enter the reef. Among the filling materials to be filled in the container, forest thinning materials such as thinned wood and cedar bark and ropes have extremely high fish-collecting property because algae are likely to adhere to them and the environment becomes a natural environment in which fish easily live. In addition, forest surplus materials and shells that become industrial waste can be effectively used as fillers.
【０００８】容器を間隔を開けて複数段設置する構成
は、具体的には、各容器に脚を設けておき、この脚付き
の容器を複数段積み重ねる方法、複数本立設した棚板部
を有する柱の棚板部に容器を載置する方法などによっ
て、容易に実施することができる。The structure in which the containers are installed in a plurality of stages at intervals is, specifically, a method in which each container is provided with legs, and the containers with the legs are stacked in a plurality of stages, and a plurality of standing shelf parts are provided. It can be easily implemented by a method of placing the container on the shelf plate portion of the pillar.
【０００９】充填物に海藻類の種苗を植え付けておく
と、海藻群落が早期に創出される。特にロープには海藻
が付着しやすいので、これに海藻類の種苗を植え付けて
おくことが望ましい。ロープの材質は麻、シュロ、プラ
スチックなど自由である。If seeds of seaweed are planted in the filling material, a seaweed community is created early. In particular, since seaweed tends to adhere to the rope, it is desirable to plant seeds of seaweed on it. The rope material can be hemp, palm, plastic, etc.
【００１０】[0010]
【発明の実施の形態】以下、実施例に関する図面に基づ
いて本発明を詳細に説明する。図１は実施例の人工魚礁
１の斜視図、図２は人工魚礁１の側面図、図３は実施例
の人工魚礁１０の平面図、図４は人工魚礁１０の正面
図、図５は人工魚礁１０の側面図、図６は仕切材１４の
斜視図、図７は実施例の人工魚礁２０の側面図、図８は
ユニット２１の平面図、図９はユニット２１の側面図、
図１０はユニット２１の斜視図、図１１は実施例の人工
魚礁３０の側面図、図１２は人工魚礁３０の平面図、図
１３は柱３２の斜視図、図１４は容器３１の斜視図であ
る。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings related to the embodiments. 1 is a perspective view of the artificial fish reef 1 of the embodiment, FIG. 2 is a side view of the artificial fish reef 1, FIG. 3 is a plan view of the artificial fish reef 10 of the embodiment, FIG. 4 is a front view of the artificial fish reef 10, and FIG. 6 is a side view of the artificial reef 20 of the embodiment, FIG. 8 is a plan view of the unit 21, and FIG. 9 is a side view of the unit 21.
10 is a perspective view of the unit 21, FIG. 11 is a side view of the artificial fish reef 30 of the embodiment, FIG. 12 is a plan view of the artificial fish reef 30, FIG. 13 is a perspective view of a pillar 32, and FIG. 14 is a perspective view of a container 31. is there.
【００１１】図１、２の人工魚礁１は、金網で作った容
器２の中に林産余材（適当な長さに切断した間伐材）、
石材及びロープが充填されている。容器２は四角筒状
で、四つの各筒壁には四角筒の内外を連通する貫通穴３
が設けられている。この人工魚礁１は単独で水中に設置
しても良いし、複数個を並べて、又積み重ねて設置して
もよい。貫通穴３が設けられているために、魚は自由に
魚礁に出入りでき、また、複数個を設置している場合は
魚礁内を自由に泳ぎ回ることができる。人工魚礁１を設
置する場合、必要に応じてコンクリートブロックなどの
重しを同時に設置して浮力を抑えることができる。重し
は人工魚礁１の底部に接続したり、上部に載置したりす
ればよい。The artificial fish reef 1 shown in FIGS. 1 and 2 has a container 2 made of wire mesh, and forest surplus material (thinned wood cut to an appropriate length),
It is filled with stone and rope. The container 2 is in the shape of a square tube, and each of the four cylinder walls has a through hole 3 for communicating the inside and outside of the square tube.
Is provided. The artificial fish reef 1 may be installed alone in water, or a plurality of artificial reefs 1 may be installed side by side or stacked. Since the through hole 3 is provided, the fish can freely move in and out of the fish reef, and when a plurality of fish are installed, the fish can freely swim in the fish reef. When the artificial fish reef 1 is installed, a weight such as a concrete block can be installed at the same time as necessary to suppress buoyancy. The weight may be connected to the bottom of the artificial fish reef 1 or placed on the top.
【００１２】人工魚礁１の充填物は林産余材及びロープ
を含むので、海中を浮遊する海藻類の種苗が着床しやす
い。また、充填物は石材を含むので、林産余材が消滅し
ても、石材に付着した海藻類が生育することで魚礁とし
ての長期的な効果が期待できる。[0012] Since the filling material of the artificial fish reef 1 contains the surplus wood material and the rope, it is easy for the seedlings of seaweed floating in the sea to be implanted. In addition, since the filler contains stones, even if the forest surplus wood disappears, long-term effects as a fish reef can be expected due to the growth of seaweed attached to the stones.
【００１３】図３〜６に示す人工魚礁１０は、金網製の
四角筒状の容器１１の中に井桁状に組んだ間伐材１５が
充填されている。間伐材１５の隙間は四角筒の内外を連
通する貫通穴１２となっている。この人工魚礁は、金網
で形成した内筒壁と外筒壁の間に間伐材１５を１段ずつ
並べながら図６の仕切材１４を挿入していくことで容易
に製造することができる。底部にはコンクリート製の重
し１３が設けられている。容器１１の底部は重し１３の
内部にアンカーされているので、容器１１と重し１３と
は一体化されている。この人工魚礁は、間伐材１本ずつ
に金網を巻き付ける必要がないので製造が容易であるば
かりでなく、間伐材全体が容器１１内で保護されるため
に耐久性にも優れている。The artificial fish reef 10 shown in FIGS. 3 to 6 has a box-shaped container 11 made of wire mesh and filled with thinning materials 15 assembled in a cross beam shape. The gap of the thinning material 15 is a through hole 12 that connects the inside and the outside of the square tube. This artificial fish reef can be easily manufactured by inserting the partitioning material 14 shown in FIG. 6 while arranging the thinning materials 15 one by one between the inner cylindrical wall and the outer cylindrical wall formed of wire mesh. A concrete weight 13 is provided at the bottom. Since the bottom of the container 11 is anchored inside the weight 13, the container 11 and the weight 13 are integrated. This artificial fish reef is not only easy to manufacture because it is not necessary to wind a wire mesh around each thinned material, but also has excellent durability because the whole thinned material is protected in the container 11.
【００１４】人工魚礁１０において、間伐材の外面にロ
ープを固着することができる。ロープは間伐材の外周に
巻き付けたり、長さ方向に沿って配置して釘止めした
り、自由な方法で固着できる。ロープを固着することで
海藻類の種苗の着床が促進される。また、ロープにあら
かじめ海藻類の種苗を植え付けておくと、更に海藻類の
早期創出を実現できる。In the artificial fish reef 10, a rope can be fixed to the outer surface of the thinned wood. The rope can be wrapped around the thinned material, placed along the length and fastened with nails, or fixed by any method. Sticking the rope promotes the implantation of seaweed seedlings. In addition, if seedlings of seaweed are planted in advance on the rope, it is possible to realize the early creation of seaweed.
【００１５】図７〜１０に示す魚礁２０はユニット２１
を積み重ねることにより、金網製の筒状の容器２２が縦
方向に間隔を開けて複数設置されている。容器２２の内
部には適当な長さに切断した間伐材、ホタテの貝殻、石
材及びロープが充填されている。ユニット２１は、図８
〜１０に示すように、容器２２に４本の脚２３を付けた
ものである。脚２３は山形鋼材で容器２２の金網に溶接
により取り付けられている。この人工魚礁は複数セット
を並べて、又は積み重ねて設置することもできる。The fish reef 20 shown in FIGS.
By stacking, a plurality of cylindrical containers 22 made of wire mesh are installed at intervals in the vertical direction. The inside of the container 22 is filled with thinned wood, scallop shells, stones, and rope cut to an appropriate length. The unit 21 is shown in FIG.
As shown in FIGS. 10 to 10, the container 22 is provided with four legs 23. The leg 23 is made of chevron steel and is attached to the wire mesh of the container 22 by welding. This artificial reef can also be installed in a plurality of sets side by side or stacked.
【００１６】図１１〜１４に示す魚礁３０は、４本の柱
３２に金網製の筒状の容器３１が縦方向に間隔を開けて
複数取り付けられている。容器３１の内部には適当な長
さに切断した間伐材、石材及びロープが充填されてい
る。柱３２は、図１３に示すように、山形鋼材に棚板部
３３を設けたもので、容器３１は棚板部３３の上に載せ
られて支持されている。この人工魚礁は複数セットを並
べて、又は積み重ねて設置することもできる。In the fish reef 30 shown in FIGS. 11 to 14, a plurality of cylindrical containers 31 made of wire mesh are attached to four pillars 32 at intervals in the vertical direction. The interior of the container 31 is filled with thinned wood, stone and rope cut to an appropriate length. As shown in FIG. 13, the pillar 32 is a mountain-shaped steel material provided with a shelf plate portion 33, and the container 31 is placed on and supported by the shelf plate portion 33. This artificial reef can also be installed in a plurality of sets side by side or stacked.
【００１７】[0017]
【発明の効果】本発明の人工魚礁は、筒状で筒壁に貫通
穴を有するか、筒状の容器が間隔をあけて配置されてい
るので、魚が自由に魚礁内に入り込むことができ、魚の
居着きやすい環境となり、集魚性が高い。有孔面材の容
器内の充填材として間伐材や杉皮などの林産余材やロー
プを使用することで藻が付着しやすく、魚が棲息しやす
い自然に近い環境となるので集魚性が一層高くなる。海
藻群落を早期に発現し得るため、魚が集まり、産卵し、
増殖していくという栽培用の魚礁としての効果もある。
また、充填物に石材や貝殻を含めると林産余材が消滅し
ても石材や貝殻に付着した海藻類が生育するので魚礁と
しての長期的な効果が期待できる。さらに、産業廃棄物
となってしまう林産余材や貝殻を有効利用することがで
きる。INDUSTRIAL APPLICABILITY Since the artificial fish reef of the present invention is tubular and has through holes in the tubular wall or tubular containers are arranged at intervals, fish can freely enter the fish reef. , It has an environment where fish can easily settle in, and has a high fish collecting property. By using forest surplus materials such as thinned wood and cedar bark as a filling material in the container of perforated surface material and rope, algae easily attaches and it becomes an environment close to nature where fish can live easily Get higher Since seaweed communities can be expressed early, fish gather and spawn,
It also has the effect of growing as a fish reef for cultivation.
In addition, if stones and shells are included in the filling, seaweeds attached to the stones and shells grow even if the forest surplus wood disappears, so long-term effects as a fish reef can be expected. In addition, forest surplus materials and shells that become industrial waste can be effectively used.
【図１】実施例の人工魚礁１の斜視図である。FIG. 1 is a perspective view of an artificial fish reef 1 according to an embodiment.
【図２】人工魚礁１の側面図である。FIG. 2 is a side view of the artificial fish reef 1.
【図３】実施例の人工魚礁１０の平面図である。FIG. 3 is a plan view of the artificial fish reef 10 of the embodiment.
【図４】人工魚礁１０の正面図である。FIG. 4 is a front view of the artificial fish reef 10.
【図５】人工魚礁１０の側面図である。FIG. 5 is a side view of the artificial fish reef 10.
【図６】仕切材１４の斜視図である。FIG. 6 is a perspective view of a partition member 14.
【図７】実施例の人工魚礁２０の側面図である。FIG. 7 is a side view of the artificial fish reef 20 of the embodiment.
【図８】ユニット２１の平面図である。8 is a plan view of the unit 21. FIG.
【図９】ユニット２１の側面図である。9 is a side view of the unit 21. FIG.
【図１０】ユニット２１の斜視図である。10 is a perspective view of the unit 21. FIG.
【図１１】実施例の人工魚礁３０の側面図である。FIG. 11 is a side view of the artificial fish reef 30 of the embodiment.
【図１２】人工魚礁３０の平面図である。FIG. 12 is a plan view of the artificial fish reef 30.
【図１３】柱３２の斜視図である。FIG. 13 is a perspective view of a column 32.
【図１４】容器３１の斜視図である。FIG. 14 is a perspective view of a container 31.
１ 人工魚礁 ２ 容器 ３ 貫通穴 １０ 人工魚礁 １１ 容器 １２ 貫通穴 １３ 重し １４ 仕切材 １５ 間伐材 ２０ 人工魚礁 ２１ ユニット ２２ 容器 ２３ 脚 ３０ 人工魚礁 ３１ 容器 ３２ 柱 ３３ 棚板部 1 Artificial fish reef 2 containers 3 through holes 10 Artificial fish reef 11 containers 12 through holes 13 weights 14 partition materials 15 Thinned wood 20 Artificial fish reef 21 units 22 containers 23 legs 30 artificial fish reef 31 containers 32 pillars 33 Shelf board
Claims (9)
筒内外を連通する貫通穴を有する容器内に林産余材、貝
殻、石材、ロープから選択される１種以上を含む充填物
を充填してなることを特徴とする人工魚礁1. A filling which is formed in a tubular shape by a perforated surface material and has one or more kinds selected from forest surplus materials, shells, stones, and ropes in a container having a through hole for communicating the inside and outside of the cylinder with a cylindrical wall. Artificial fish reef characterized by being filled with things
が四角筒状であって、その四つの各筒壁に前記貫通穴を
有するものであることを特徴とする人工魚礁2. The artificial fish reef according to claim 1, wherein the container has a rectangular tubular shape, and the four cylindrical walls have the through holes.
内部に井桁状に組んだ間伐材が充填されていることを特
徴とする人工魚礁3. The artificial fish reef according to claim 2, characterized in that the container is filled with thinning materials assembled in a cross beam shape.
材が外周面にロープを固着したものであることを特徴と
する人工魚礁4. The artificial fish reef according to claim 3, wherein the thinning material has a rope fixed to the outer peripheral surface.
林産余材、貝殻、石材、ロープから選択される１種以上
を含む充填物を充填した容器を縦方向に間隔を開けて複
数設置することを特徴とする人工魚礁5. A container formed in a tubular shape by a perforated surface material and filled with a filler containing one or more kinds selected from forest surplus materials, shells, stones, and ropes inside, with a space provided in the longitudinal direction. Artificial fish reef characterized by multiple installations
器に脚が設けられており、この脚付きの容器を複数段積
み重ねてなるものであることを特徴とする人工魚礁6. The artificial fish reef according to claim 5, wherein each container is provided with legs, and the containers with legs are stacked in a plurality of stages.
設した棚板部を有する柱の該棚板部に前記容器を載置し
てなるものであることを特徴とする人工魚礁7. The artificial fish reef according to claim 5, wherein the container is placed on the shelf plate portion of a pillar having a plurality of standing shelf plate portions.
いて、前記充填物が林産余材と、石材及び／又は貝殻を
含むものであることを特徴とする人工魚礁8. The artificial fish reef according to any one of claims 1 to 7, wherein the filler contains surplus wood products and stone and / or shells.
いて、前記充填物が海藻類の種苗を植え付けたものを含
んでいることを特徴とする人工魚礁9. The artificial fish reef according to any one of claims 1 to 8, wherein the filling material includes a seed of a seaweed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373935A JP2003169563A (en) | 2001-12-07 | 2001-12-07 | Artificial fish bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373935A JP2003169563A (en) | 2001-12-07 | 2001-12-07 | Artificial fish bank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003169563A true JP2003169563A (en) | 2003-06-17 |
Family
ID=19182573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001373935A Pending JP2003169563A (en) | 2001-12-07 | 2001-12-07 | Artificial fish bank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003169563A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012223151A (en) * | 2011-04-21 | 2012-11-15 | Oishi Kensetsu Kk | Artificial fish bank |
| JP2013048572A (en) * | 2011-08-30 | 2013-03-14 | Hidenori Oka | Fish bank made of woody column |
| CN103975872A (en) * | 2014-04-01 | 2014-08-13 | 中国水产科学研究院南海水产研究所 | Conch reef capable of providing better flow field effect |
-
2001
- 2001-12-07 JP JP2001373935A patent/JP2003169563A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012223151A (en) * | 2011-04-21 | 2012-11-15 | Oishi Kensetsu Kk | Artificial fish bank |
| JP2013048572A (en) * | 2011-08-30 | 2013-03-14 | Hidenori Oka | Fish bank made of woody column |
| CN103975872A (en) * | 2014-04-01 | 2014-08-13 | 中国水产科学研究院南海水产研究所 | Conch reef capable of providing better flow field effect |
| CN103975872B (en) * | 2014-04-01 | 2016-04-13 | 中国水产科学研究院南海水产研究所 | A kind of shell reef that better flow field effect is provided |
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