JPS6312567B2 - - Google Patents
Info
- Publication number
- JPS6312567B2 JPS6312567B2 JP58014583A JP1458383A JPS6312567B2 JP S6312567 B2 JPS6312567 B2 JP S6312567B2 JP 58014583 A JP58014583 A JP 58014583A JP 1458383 A JP1458383 A JP 1458383A JP S6312567 B2 JPS6312567 B2 JP S6312567B2
- Authority
- JP
- Japan
- Prior art keywords
- wire mesh
- seawater
- seaweed bed
- seabed
- power source
- 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
Links
- 241001474374 Blennius Species 0.000 claims description 16
- 239000013535 sea water Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 241000195493 Cryptophyta Species 0.000 description 5
- 239000004575 stone Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229930091051 Arenine Natural products 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000195628 Chlorophyta Species 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000218922 Magnoliophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241001123263 Zostera Species 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002659 electrodeposit Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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)
- Cultivation Of Seaweed (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は藻類が繁茂する藻場の形成方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for forming a seaweed bed where algae flourish.
海洋に秘められた資源は膨大であり、そのなか
でも特に水産資源は食料、蛋白質資源として重要
である。この水産資源は生物資源の一つであるか
ら、繁殖成長により資源の数量が増大する反面、
自然減耗もあつて動的な均衡を保つている。しか
しながら、近年の工業の発達に伴う環境汚染等に
より、この均衡が特に沿岸海域において破壊され
つつある。
There are vast resources hidden in the ocean, and marine resources are particularly important as food and protein resources. This marine resource is one of the biological resources, so while the quantity of the resource increases due to reproduction and growth,
A dynamic equilibrium is maintained due to natural attrition. However, due to environmental pollution caused by recent industrial development, this balance is being disrupted, especially in coastal waters.
藻場はこのような水産資源を保護するうえで非
常に大切なものである。これは例えば多年性顕花
植物のアマモの扁平細長の葉が叢生し微細な動物
が生息するため、幼稚魚の生育場や魚の隠れ場と
なるからである。このため従来、陸上において採
取された砕石等を船舶により輸送した後に海中に
投下して人工的に藻場を形成し、藻場育成に努め
ている。 Seaweed beds are extremely important in protecting these marine resources. This is because, for example, the flat and long leaves of eelgrass, a perennial flowering plant, grow in clusters and are inhabited by minute animals, providing a breeding ground for young fish and a hiding place for fish. For this reason, conventional efforts have been made to cultivate seaweed beds by transporting crushed stones and the like collected on land by ship and then dropping them into the sea to artificially form seaweed beds.
しかるにこの種従来の藻場の形成方法において
は、砕石等が漂砂等により埋没してしまうため
に、定期的に新しい砕石等を海中に投下しなけれ
ばならないという不具合があり、材料費、輸送費
等が嵩むという不都合も生じる。 However, in this type of conventional seaweed bed formation method, there is a problem in that crushed stones, etc. are buried by drifting sand, etc., and new crushed stones, etc. must be periodically dropped into the sea, which increases material and transportation costs. There also arises the inconvenience that the amount of paper, etc. increases.
本発明はこのような事情に鑑みなされたもの
で、波形状の金網を海底に設置すると共に、これ
に近接して電極部材を配置し、これらをマイナス
およびプラス側に接続して通電するというきわめ
て簡単な構成により、砂中に埋没することがない
藻場を安価に形成できる藻場の形成方法を提供す
るものである。以下、その構成等を図に示す実施
例により詳細に説明する。
The present invention has been developed in view of the above circumstances, and it is extremely effective in that a corrugated wire mesh is installed on the seabed, electrode members are placed close to this, and these are connected to the negative and positive sides to conduct electricity. To provide a method for forming a seaweed bed that can inexpensively form a seaweed bed that will not be buried in sand with a simple configuration. Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.
第１図は本発明に係る藻場の形成方法について
説明するための概略図で同図において符号１で示
すものは、海底を示し２は海水を示す。この海水
２中には重量比で約3.5％の無機塩類すなわち鉱
物が溶け込んでおり、それはほとんど完全にイオ
ンに解離している。主成分はナトリウム、マグネ
シウム、カルシウム、カリウム、ストロンチウ
ム、塩素、硫黄、臭素、炭素の９種類のイオンで
あり、前記塩類の99.9％以上を占めている。
FIG. 1 is a schematic diagram for explaining the method of forming a seaweed bed according to the present invention. In the figure, the reference numeral 1 indicates the seabed, and 2 indicates seawater. Approximately 3.5% by weight of inorganic salts, ie minerals, are dissolved in this seawater 2, and these are almost completely dissociated into ions. The main components are nine types of ions: sodium, magnesium, calcium, potassium, strontium, chlorine, sulfur, bromine, and carbon, which account for more than 99.9% of the salts.
３は例えば鉄などの線材から形成された金網
で、この金網３は波や流れによつて移動する漂砂
に埋没しない高さを有する波形状に折曲げられた
後に海底１に設置される。このとき金網３は網目
を有しているから海水２から受ける抵抗などの影
響が少なく、容易に所定位置に設置することがで
きる。４は例えば鉄と鉛との合金などから棒状に
形成された電極部材で、この電極部材４，４，…
…は前記金網３に平均的に近接するような位置に
配置される。 Reference numeral 3 denotes a wire mesh made of a wire material such as iron, and the wire mesh 3 is installed on the seabed 1 after being bent into a wave shape having a height that will not be buried in drifting sand moved by waves and currents. At this time, since the wire mesh 3 has a mesh, it is less affected by resistance from the seawater 2 and can be easily installed at a predetermined position. Reference numeral 4 denotes an electrode member formed into a rod shape from, for example, an alloy of iron and lead, and these electrode members 4, 4, . . .
... are arranged at positions that are close to the wire mesh 3 on average.
５は例えば12ボルトのバツテリなどの直流電源
で、この直流電源５のマイナス側側は絶縁された
ケーブル６により前記金網３に接続され、プラス
側は図示しないスイツチや電圧調整器などを介し
てケーブル６，６……により前記電極部材４，４
……に並列に接続される。そしてこれら金網３お
よび電極部材４，４……間には海水２中の鉱物を
金網３に電着させるために数ボルトの直流電圧が
印加され、数mA〜数10Aの直流電流が通電され
る。 5 is a DC power source such as a 12-volt battery, and the negative side of this DC power source 5 is connected to the wire mesh 3 through an insulated cable 6, and the positive side is connected to the cable via a switch or voltage regulator (not shown). 6, 6..., the electrode members 4, 4
...is connected in parallel. A DC voltage of several volts is applied between the wire mesh 3 and the electrode members 4, 4, in order to electrodeposit the minerals in the seawater 2 onto the wire mesh 3, and a DC current of several mA to several tens of A is applied. .
このように構成された藻場の形成方法において
は、金網３と電極部材４，４……との間に直流電
流が流れるために、金網３を陰極、電極部材４，
４……を陽極、海水２を電解質溶液として海水２
の電気分解が行われる。すなわち、陽極となる電
極部材４，４……側ではイオン価が増加する酸化
反応が起こり、陰極となる金網３側ではイオン価
が減少する還元反応が起こる。このため電極部材
４，４……側では酸素および塩素の気体が発生
し、金網３側では水素の気体が発生すると共に、
海水２中に溶け込んでほとんど完全にイオンに解
離している無機塩類のカルシウムやマグネシウム
の陽イオンが還元される化学反応が起こる。その
結果第２図に示すように炭酸カルシウム、
（CaCO3）や水酸化マグネシウム（Mg（OH）2）
が析出され金網３の表面に一様に電着し、電着形
成物７を形成する。このとき金網３と電極部材
４，４……間の電流が数mA〜数10Aと電流密度
が小さくなるように設定されているので、電着形
成物７は金網３の表面に緻密に付着し、また環境
に悪影響を与えるようなことはない。 In the method for forming a seaweed bed configured as described above, since a direct current flows between the wire mesh 3 and the electrode members 4, 4, etc., the wire mesh 3 is used as a cathode, and the electrode members 4, 4, .
4... as an anode, seawater 2 as an electrolyte solution, seawater 2
electrolysis is carried out. That is, an oxidation reaction occurs on the side of the electrode members 4, 4, . Therefore, oxygen and chlorine gases are generated on the electrode members 4, 4... side, hydrogen gas is generated on the wire mesh 3 side, and
A chemical reaction occurs in which the cations of calcium and magnesium, which are inorganic salts dissolved in seawater 2 and almost completely dissociated into ions, are reduced. As a result, as shown in Figure 2, calcium carbonate,
(CaCO 3 ) and magnesium hydroxide (Mg(OH) 2 )
is precipitated and uniformly electrodeposited on the surface of the wire mesh 3 to form an electrodeposited product 7. At this time, the current density between the wire mesh 3 and the electrode members 4, 4, . , and will not have any negative impact on the environment.
電流を流し続けると前記電着形成物７は金網３
を包み込むようなかたちで徐々に成長する。実験
によれば約６週間で10ミリメートル程度の厚さに
なることがわかつている。金網３の海底１に接し
ている底部３ａ，３ａ……においては海底１の砂
等が網目内に入り込んでおり、電着形成物７はこ
れらの砂等を含み込むように、すなわち金網３を
固定しながら成長する。このため海水２の流動や
海底１上を高さＨの範囲で移動する漂砂８により
移動するようなことがない。また電着形成物７は
通電停止後においても徐々に緻密な組織に変化し
ていく性質があるので、前記漂砂８に埋没しない
金網３で配筋されたきわめて堅固な波形状の海中
構造物が形成される。 When the current continues to flow, the electrodeposited material 7 becomes the wire mesh 3.
It gradually grows in a way that envelops the body. Experiments have shown that it grows to a thickness of about 10 mm in about 6 weeks. In the bottom parts 3a, 3a... of the wire mesh 3 that are in contact with the seabed 1, sand etc. from the seabed 1 have entered the mesh, and the electrodeposited material 7 is formed so as to contain these sands, etc., that is, the wire mesh 3 is Grows while staying fixed. Therefore, there is no possibility of movement due to the flow of seawater 2 or drifting sand 8 moving on the seabed 1 within the range of height H. Furthermore, since the electrodeposited material 7 has a property of gradually changing into a dense structure even after the electricity supply is stopped, an extremely solid wave-shaped underwater structure reinforced with wire mesh 3 that will not be buried in the drifting sand 8 can be constructed. It is formed.
さらに電着形成物７は藻類の着床性に優れてお
り、実験によれば前記電着形成物７から形成され
た構造物を海中に沈めた場合、72時間後にその構
造物の表面に青緑の藻類の成長が見られ、その
190〜280時間後に８センチメートルの長さに成長
することがわかつている。すなわち前記波形状の
海中構造物の表面には藻９，９……が繁茂し藻場
が形成され、この藻場は漂砂８に埋没するような
ことがない。 Furthermore, the electrodeposited material 7 has excellent ability for algae to settle, and experiments have shown that when a structure formed from the electrodeposited material 7 is submerged in the sea, a blue color appears on the surface of the structure after 72 hours. Green algae growth can be seen;
They are known to grow to a length of 8 centimeters after 190 to 280 hours. That is, on the surface of the wave-shaped underwater structure, algae 9, 9... flourish and a seaweed bed is formed, and this seaweed bed is not buried in drifting sand 8.
なお海水２が流動するために金網３の設置が困
難なときは、適宜簡単に仮固定すればよいのはい
うまでもない。 It goes without saying that if it is difficult to install the wire mesh 3 because of the flowing seawater 2, it may be simply temporarily fixed as appropriate.
以上説明したように本発明によれば波形状の金
網を海底に設置し、これに近接させて電極部材を
配置し、これら金網、電極部材を直流電源に接続
して通電し、海水中に溶け込んでおり藻類の着床
性に優れた鉱物を陰極となる金網に電着させるよ
うにしたから、前記金網を配筋として堅固な海中
構造物を形成することができる。
As explained above, according to the present invention, a corrugated wire mesh is installed on the seabed, an electrode member is placed close to the wire mesh, and the wire mesh and electrode member are connected to a DC power source and energized to dissolve into the seawater. Since minerals that have excellent attachment properties for algae are electrodeposited on the wire mesh that serves as the cathode, a sturdy underwater structure can be formed using the wire mesh as reinforcement.
したがつて、その表面には藻類が繁茂するの
で、藻場が形成できるという効果がある。また従
来の砕石のように砂中に埋没するようなことがな
いから、半永久的に藻場として活用することがで
きる。さらにわずかな電力で海水中に溶け込んで
いる鉱物を構造材とするため比較的安価に形成で
きるという効果もある。 Therefore, algae grow on the surface, which has the effect of forming a seaweed bed. Also, unlike conventional crushed stone, it does not get buried in the sand, so it can be used semi-permanently as a seaweed bed. Another advantage is that it can be formed relatively inexpensively using only a small amount of electricity and using minerals dissolved in seawater as the structural material.
第１図は本発明に係る藻場の形成方法について
説明するための概略図、第２図は同じく形成され
た藻場を示す概略図である。
１……海底、３……金網、４……電極部材、５
……直流電源、７……電着形成物。
FIG. 1 is a schematic diagram for explaining the method for forming a seaweed bed according to the present invention, and FIG. 2 is a schematic diagram showing a similarly formed seaweed bed. 1... Seabed, 3... Wire mesh, 4... Electrode member, 5
...DC power source, 7...Electrodeposited product.
Claims (1)
と共に、この金網に近接するように電極部材を配
置し、記前金網を直流電源のマイナス側に、前記
電極部材をプラス側にそれぞれ接続して通電し、
海水中の鉱物を金網に電着させることを特徴とす
る藻場の形成方法。1. A wire mesh bent into a wave shape is installed on the seabed, and an electrode member is placed close to the wire mesh, and the wire mesh is connected to the negative side of a DC power source, and the electrode member is connected to the positive side of the DC power source. energize,
A seaweed bed formation method characterized by electrodepositing minerals in seawater onto a wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58014583A JPS59140822A (en) | 1983-02-02 | 1983-02-02 | Formation of algae field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58014583A JPS59140822A (en) | 1983-02-02 | 1983-02-02 | Formation of algae field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59140822A JPS59140822A (en) | 1984-08-13 |
| JPS6312567B2 true JPS6312567B2 (en) | 1988-03-19 |
Family
ID=11865182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58014583A Granted JPS59140822A (en) | 1983-02-02 | 1983-02-02 | Formation of algae field |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140822A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054626A (en) * | 1983-09-06 | 1985-03-29 | 日本防蝕工業株式会社 | Steel cage type fish bank |
| JPH0347490Y2 (en) * | 1986-03-25 | 1991-10-09 | ||
| JPS63173533A (en) * | 1987-01-14 | 1988-07-18 | 四国電力株式会社 | Method for forming submarine forest fish bank |
| JPH0751031B2 (en) * | 1987-07-01 | 1995-06-05 | 三井造船株式会社 | How to attach algae zoospores |
| JP2763356B2 (en) * | 1989-12-08 | 1998-06-11 | 旭化成工業株式会社 | Artificial reefs for infants |
| JP5566842B2 (en) * | 2010-10-05 | 2014-08-06 | 三菱重工鉄構エンジニアリング株式会社 | Coral cultivation method |
-
1983
- 1983-02-02 JP JP58014583A patent/JPS59140822A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59140822A (en) | 1984-08-13 |
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