WO2001019180A1 - Materiau de formation d'un champ d'algues et bloc correspondant - Google Patents

Materiau de formation d'un champ d'algues et bloc correspondant Download PDF

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Publication number
WO2001019180A1
WO2001019180A1 PCT/JP2000/006215 JP0006215W WO0119180A1 WO 2001019180 A1 WO2001019180 A1 WO 2001019180A1 JP 0006215 W JP0006215 W JP 0006215W WO 0119180 A1 WO0119180 A1 WO 0119180A1
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WO
WIPO (PCT)
Prior art keywords
concrete
fertilizer component
bed
forming
fertilizer
Prior art date
Application number
PCT/JP2000/006215
Other languages
English (en)
Japanese (ja)
Inventor
Takahiko Watanabe
Hajime Kobayashi
Hideto Narumi
Original Assignee
Nihon Data Service Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nihon Data Service Inc. filed Critical Nihon Data Service Inc.
Publication of WO2001019180A1 publication Critical patent/WO2001019180A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/043—Artificial seaweed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/10—Culture of aquatic animals of fish
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00—Cultivation of seaweed or algae
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/70—Artificial fishing banks or reefs
    • 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
    • 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

Definitions

  • the present invention relates to a porous material used for forming a seaweed bed on the seabed of a coast, and a seaweed bed forming block made of the porous material. More specifically, the present invention relates to a porous material for promoting the growth of seaweeds and forming a seaweed bed suitable for the growth of aquatic organisms such as seaweeds and fishes, and a block thereof.
  • a seaweed bed block obtained by consolidating a large number of silicon-containing gypsum pellets.
  • We previously proposed a block for algae beds impregnated with oxycarboxylic acid, which shows algae-eating behavior such as shrubs Patent No. 273070.
  • the former block has a large porosity consisting of a macro space between the pellets and a micro space of the pellet itself, which provides a favorable growth environment for aquatic organisms. Having.
  • the algae beds with good growth of seaweeds are formed because the damage by alga-eating animals such as dinosaurs is suppressed.
  • the previously proposed algal bed formation block promotes the growth of seaweed Has excellent effects.
  • the present invention not only solves the above-mentioned problems in the conventional artificial reef made of concrete but also applies the seaweed bed forming block proposed by the present applicant to not only the block of the molded body but also other materials.
  • Another object of the present invention is to provide a seaweed bed forming material which can further enhance the growth effect of seaweed.
  • the present invention relates to a material for forming a seaweed bed, which comprises a fertilizer component serving as a nutrient source of seaweed, which is a material for forming a structure serving as a seaweed bed.
  • a material for forming the structure that becomes the seaweed bed a concrete material, cement, a hydraulic composition other than cement, a porous body, a block made of these materials, or the like can be used.
  • Fertilizer components include one or more of phosphoric acid, nitrogen, and potassium.
  • the term "concrete” is a general term for cement, a hydraulic composition other than cement, or a resin composition that has been solidified together with the aggregate, to which various admixtures (materials) for concrete have been added. Including mortar.
  • One embodiment of the seaweed bed forming material of the present invention is obtained by mixing a solid fertilizer component (fertilizer particles) with a concrete material forming a seaweed bed block.
  • Solid fertilizer components include hard fertilizers such as vitreous fertilizers, calcined phosphorus fertilizers, or fused phosphorus fertilizers made from various types of slag (slag).
  • slag slag
  • As fertilizer composed of slag for example, Hue mouth nickel slag, ferromanganese slag, silicomanganese slag and the like can be used.
  • slag fertilizers and fused phosphorus fertilizers are vitreous and burnt phosphorus fertilizers are not easily broken, when they are added to cement or the like to form a hardened concrete, as shown in Fig. 1, Concrete dispersed in the tissue together with the aggregate is obtained.
  • Fig. 1, 1 is a mixture of powdered fertilizer components 2 is concrete mixed with granular fertilizer components. Concrete 2 has granular fertilizer component 3 dispersed throughout the concrete structure. The solid fertilizer component dispersed in the concrete structure gradually elutes into the sea when the structure formed by this concrete is installed in the sea, and becomes a nutrient for seaweed.
  • the concrete material containing the solid fertilizer component may be any one or more of cement, a hydraulic composition other than cement, a resin composition, an aggregate, a concrete admixture (agent), and a porous material. good.
  • the seagrass bed-forming material of the present invention includes: (i) a mixture of solid fertilizer particles in a binder (agent) such as cement, a hydraulic composition other than cement, or a resin composition; Solid fertilizer particles mixed with aggregate components such as aggregates, fine aggregates or porous materials, and (iii) various types of concrete admixtures with solid fertilizer particles. including.
  • a solid phosphate fertilizer such as a fused phosphorus fertilizer or a baked phosphorus fertilizer is used as a solid fertilizer component
  • the amount of the solid phosphate fertilizer is appropriately 0.1 to 5% by weight or less based on the weight of the concrete. . If the amount of the phosphate fertilizer is larger than this, it is not preferable because the concrete hardly solidifies. If the amount of phosphate fertilizer is less than this, the effect of the fertilizer is insufficient.
  • the above-mentioned concrete material mixed with a solid fertilizer component may be in the form of a powder or a slurry in which water is added.
  • the seagrass bed forming material of the present invention also includes a mode in which a solid fertilizer component is added and dispersed in the slurry when kneading water is added to a concrete material such as cement to form a slurry.
  • Another embodiment of the seaweed bed forming material according to the present invention is one in which a fertilizer component is contained in concrete by adding a dissolved fertilizer component to a concrete material forming a seaweed bed block.
  • the step of dissolving the fertilizer component is not limited. Powder or granular solid fertilizer may be mixed with concrete material and dissolved in concrete mixing water. Alternatively, water in which a fertilizer component is previously dissolved may be used as a part of the mixing water. Fertilizer components may be contained in concrete.
  • the seagrass bed forming material of the present invention includes various kinds of kneading water in which a fertilizer component is dissolved, a combination of a kneading water in which a fertilizer component is dissolved and a concrete material, and a combination of a fertilizer component and a concrete material which are dissolved by kneading water and the like. Including embodiments.
  • the fertilizer component salts soluble in water and the like are used.
  • sodium nitrate including ammonium, calcium, magnesium, potassium, and chile saltpeter
  • potassium sulfate ammonium
  • sodium phosphate potassium, ammonium
  • disodium hydrogen phosphate potassium, ammonium
  • the dissolved fertilizer components are present, for example, in concrete structures in the form of precipitates in gaps between cement minerals and aggregates.
  • the fine crystals exist in a state dispersed throughout the concrete structure.
  • the seaweed bed forming material of the present invention is not limited to the form of the material before manufacturing the concrete block or the like described above, but may be applied to a structure that becomes a seaweed bed such as a concrete block or a porous body that forms this structure. This includes an embodiment in which a dissolved fertilizer component is impregnated.
  • the porous body used for the above seaweed bed forming material may be any as long as it can support a fertilizer component serving as a nutrient source of seaweed in its voids (pores).
  • pyroclastic rocks diatomaceous earth or zeolite porous rocks, crushed porous rocks, granules compacted with volcanic ash or coal ash, various ceramics such as bricks, hygroscopic solids Gel, porous polymer beads (porous organic material), or a mixture of concrete material and charcoal or activated carbon can be used.
  • lapilli is preferable because it has moderate voids (pores) and can be obtained at low cost.
  • lapilli is 4 mD in particle size!
  • the volcaniclastic material of ⁇ 32 iran is shown.
  • porous rock of volcanic nature regardless of the particle size is called lapilli.
  • the particle size of the gravel is preferably between gravel and gravel so that the surface of the volcanic gravel can have a large number of voids when blocks or the like are formed. It is difficult to obtain a simple substance and a molded body having a large water absorption at a particle size smaller than that of the silt. By adjusting the total amount of pores (pores) by combining several types of lapilli with different particle sizes, it is possible to obtain a block with a large amount of fertilizer component impregnation and a large molded body strength. .
  • coal ash, lime and gypsum are mixed and formed into pellets of about several millimeters, which are used as absorbents for sulfur oxides and nitrogen oxides.
  • These used pellets or used pellets Can be used as the porous body of the present invention.
  • This pellet is porous, has an adsorption function similar to activated carbon, and is excellent in water absorption.
  • about 2 0% to about 4 0% porosity were molded spent Peretsuto for the desulfurization cylindrical, be suitably used a porous body of compressive strength 1 0 ⁇ 3 3 N / mm 2 it can.
  • the porous body used in the present invention preferably has a water absorption of 20 ⁇ % or more.
  • the fertilizer component which is a nutrient source of the seaweed, can be sufficiently impregnated. Nutrients and promote the smooth growth of seaweed.
  • the same salts soluble in water as described above are used.
  • alkali metal salts such as nitric acid, phosphoric acid, and polyphosphoric acid, alkaline earth metal salts, and ammonium salts. These can be used as a mixture of two or more as necessary.
  • Means for impregnating the porous body with the fertilizer component (salts) is not limited.
  • the porous body may be immersed in an aqueous solution in which salts are dissolved and subjected to reduced pressure or pressure treatment, or may be treated using both reduced pressure and increased pressure.
  • the porous body is immersed in an aqueous solution in which salts are dissolved in a container, the container is sealed and the inside is depressurized, and the aqueous solution is impregnated in the porous body. After decompression, take out the porous body from the container and dry it if necessary. Drying removes only surface water (surface dried material), and heat-drys the inside of the porous body (absolutely dried material).
  • FIG. 2 is a schematic diagram showing the impregnation method using reduced pressure or increased pressure.
  • FIG. 2 (A) shows the case of impregnation under reduced pressure.
  • a vacuum container 21 is filled with an aqueous solution 22 in which a fertilizer component is dissolved, and the porous body 23 is immersed therein.
  • the sealed vessel 21 is provided with a pressure gauge 25 and a pressure regulating valve 26 and connected to a vacuum pump 24 through a pipe 27 to exhaust the vessel.
  • FIG. 2 (B) shows the case of pressure impregnation, in which a pressure-closed container 31 is filled with an aqueous solution 32 in which a fertilizer component is dissolved, and the porous body 33 is immersed therein.
  • the sealed container 31 is provided with a pressure gauge 35 and a pressure regulating valve 36, and is connected to a compressor 34 via a pipe 37 to pressurize the inside of the container.
  • the pressure or pressure should be such that the nutrient solution penetrates the inside of the porous material.
  • the pressure is reduced to the saturated water vapor pressure (10 to 12 hPa) to 50 0 hPa, 20000 ⁇ 500 O hPa under pressure is easy to handle.
  • lapilli with a particle size of about 0.8 to 2 mm (small grains) and lapilli with a grain size of about 2 to 5 thighs (medium grains) are combined with a saturated solution of sodium nitrate and a saturated solution of disodium hydrogen phosphate. After immersion and stirring, the saturated steam pressure at that temperature (approximately 2 3 at water temperature 2) When impregnated with these aqueous solutions at reduced pressure to hPa), the impregnated amount is about 27 wt% for small-scale rubble and about 20 wt% for medium-size rubble when absolutely dry wood is used.
  • the impregnated amount is about 27 wt% for small-scale rubble and about 20 wt% for medium-size rubble when absolutely dry wood is used.
  • the porous body to be impregnated with the fertilizer component may be impregnated with oxycarboxylic acid, which shows a repellent behavior by algae-eating animals such as dinosaurs, together with the fertilizer component.
  • oxycarboxylic acid which shows a repellent behavior by algae-eating animals such as dinosaurs
  • the impregnated amount of the oxycarboxylic acid is preferably such that the water concentration on the surface of the porous body is maintained at about lmg / liter or more for at least one month after installation in the sea (water).
  • the structure for algae beds is obtained by consolidating the porous body impregnated with the fertilizer component into blocks.
  • a fertilizer component may be impregnated after solidifying the porous body in a block shape with cement or the like.
  • the present invention includes both aspects.
  • This block may contain aggregates such as sand and gravel, if necessary, in addition to the porous body.
  • the shape and size of the block are not limited. It can have various shapes such as polyhedral, tetrapot, table, and box.
  • existing blocks may be fitted with plates impregnated with fertilizer components or molded bodies of various shapes.
  • the structure for a seaweed bed of the present invention includes any of these embodiments.
  • the weight of the single structure is about 210 to 240 kg.
  • the strength of the block must be stable for a long period of time when it is installed in the sea and can withstand waves and the like.
  • a block having the same compressive strength as a lightweight concrete is appropriate.
  • those having a compressive strength of 10 N / mm 2 or more are preferable.
  • This block whether solidified using a porous material alone or mixed with aggregates, is used for at least as long as the seaweed such as kelp has settled and at least initially grown. It is preferable to be able to stably release nutrient salts for 3 months. Specifically, it is preferable that the above-mentioned salts gradually elute, for example, an average of about 0.2 to 2 mg / l per hour as a nitrogen concentration on a block surface. In order for the block to be impregnated with such a sufficient amount of salts, it is generally preferable that the block contains the porous material in an amount of 5 wt% or more. The amount of cement and the amount of aggregate are not limited.
  • the installation state and the installation method are not limited.
  • a large number of blocks or the like may be laid on the seabed, or may be individually dispersed. In general, it is appropriate to set the installation location at the water depth where seaweeds grow, for example, about 1 to 10 m.
  • the material for forming a seaweed bed and the structure thereof (such as block) of the present invention have the following advantages.
  • a large amount of fertilizer component can be contained by mixing a solid fertilizer component in concrete or using a porous body to contain the fertilizer component.
  • the block containing the fertilizer component can be formed into an arbitrary shape by using cement or the like, and the strength of a molded product equivalent to that of a normal concrete product can be obtained.
  • FIG. 1 A photograph showing the solid fertilizer components dispersed in the concrete structure.
  • FIGS. 2A and 2B are schematic diagrams of a method of impregnating a porous body with a fertilizer component.
  • FIG. 3 is an external view of the block manufactured in Example 1.
  • FIG. 4 is an external view of a block manufactured in Example 4.
  • the lapilli subjected to the treatment of the present invention is impregnated with a large amount of salts, and the compact has high compressive strength.
  • the compressive strength of the conventional product is 19.6 N / mm 2 on average, which is significantly lower than the block of the present invention.
  • the conventional product does not contain phosphoric acid, and the elution amount is below the detection limit.
  • the block shown in Fig. 3 manufactured in Example 1 was installed at several power stations along the coast of the Sea of Japan in Hokkaido, and the epiphytic status of kelp was examined.
  • Table 4 shows the results.
  • Table 4 shows the results of the installation of the conventional products and the situation of the surrounding natural reefs.
  • the block using the block of the present invention was installed at any of the installation locations.
  • the growth of kelp is better than that of conventional products, and the growth is much better than that of natural reefs.
  • cylindrical pellets with a particle size of about 5 to 20 mm (a porous body formed by mixing coal ash, lime and gypsum used for desulfurization), it is made up of 20% by weight of sodium nitrate (Chile nitrite) and sodium tripolyphosphate. It was immersed in an aqueous solution containing wt% and stirred, and the pressure was reduced to about 23 hPa to impregnate the salts. This is dehydrated and dried only on the surface. Using 220 kg, add cement (Blast furnace type B: 296 kg), sand (6 39 kg), gravel (909 kg) and water, knead the mixture, air-dry and cure it.
  • cement Blast furnace type B: 296 kg
  • sand (6 39 kg)
  • gravel 909 kg
  • Table 8 shows the compressive strength of this block.
  • a small piece of this block was immersed in water and the concentrations of the eluted nitrate and phosphate ions were measured. The results are shown in Table 9.
  • this block has high compressive strength and releases high concentrations of fertilizer components (salts) over a long period of time.
  • This block was placed in the same test plot (section A) as in Example 1, and the condition of kelp was found. The results are shown in Table 10.
  • the block using the block of the present invention has a better growth condition of the kelp than the case of using the conventional product shown in Table 4, and the growth condition is remarkably better than the natural reef.
  • Diatomaceous earth with a particle size of about 10 to 50 fractions was immersed in a 25 wt% aqueous solution of sodium nitrate (Chile saltpeter), stirred, and impregnated with salts by reducing the pressure to about 23 hPa.
  • Chile saltpeter sodium nitrate
  • To 300 kg of dewatered and dried surface only 25 kg of powdered phosphate fertilizer (bone phosphorus) was added.
  • Example 4 Cement (Blast furnace B type: 29 l kg), sand (750 kg), gravel (75 1 kg) and water were added to the fertilizer component-containing material, and the mixture was air-dried and cured.
  • a block of the same shape was manufactured. Table 11 shows the compressive strength of this block.
  • this block was immersed in water to elute nitrate and phosphate ions. The degree was measured. The results are shown in Table 12. As shown in Table 111, this block has high compressive strength and releases high concentrations of fertilizer components (salts) over a long period of time.
  • Coverage is the percentage of the area covered by seaweed.
  • seaweed bed forming material of this invention the growth of seaweeds, such as a kelp, is good, and a favorable seaweed bed can be easily formed in the sea. Further, since the type and amount of the salt to be impregnated with the material for forming a seaweed bed of the present invention can be arbitrarily adjusted, a block for a seaweed bed suitable for an installation environment can be manufactured. In addition, stable fire Since it can be manufactured using rubble, etc., it is inexpensive and quality control is easy.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cultivation Of Seaweed (AREA)

Abstract

L'invention concerne un matériau de formation d'un champ d'algues caractérisé en ce qu'il comprend des composants d'engrais intégrés dans du matériau du type de béton ou similaire. Divers modes de réalisation sont proposés, selon lesquels des composants d'engrais solide sont dispersés dans une structure de béton, lesdits composants d'engrais étant dispersés pour être intégrés dans du béton lors de la fabrication de ce dernier; en variante, on imprègne une matière poreuse avec des composants d'engrais. Les composants d'engrais contenus dans un matériau ou une structure sont élués graduellement dans une mer qui apporte des aliments à des algues telles que la laminaire géante, ce qui favorise leur croissance et permet de former un excellent champ d'algues de densité élevée.
PCT/JP2000/006215 1999-09-13 2000-09-12 Materiau de formation d'un champ d'algues et bloc correspondant WO2001019180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/259091 1999-09-13
JP25909199 1999-09-13

Publications (1)

Publication Number Publication Date
WO2001019180A1 true WO2001019180A1 (fr) 2001-03-22

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095394A (ja) * 2004-09-29 2006-04-13 Akio Asahi 飲料水の浄化方法
JP2009045006A (ja) * 2007-08-20 2009-03-05 Jfe Steel Kk 水中沈設用水和固化体
CN102177841A (zh) * 2011-05-09 2011-09-14 中国科学院南海海洋研究所 一种提高人工礁石表面藻类附着效果的方法
CN102630552A (zh) * 2012-04-01 2012-08-15 苏州安德鲁尹生物技术咨询有限公司 一种超高碘含量海带及其养殖方法和应用
US8312843B2 (en) * 2005-11-15 2012-11-20 Ora Technologies, Llc Artificial material conducive to attract and grow oysters, mollusks or other productive and/or stabilizing organisms
CN104642216A (zh) * 2013-11-25 2015-05-27 山东大学（威海） 一种营养盐缓释人工鱼礁的制作方法
JP2016185098A (ja) * 2015-03-27 2016-10-27 株式会社ホクコン 環境改善型コンクリートブロック

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54117790A (en) * 1979-02-15 1979-09-12 Asahi Chemical Ind Production of artificial fish bank
JPS63178447U (fr) * 1987-05-13 1988-11-18
JPH0750952A (ja) * 1993-05-14 1995-02-28 Nippon Data Service Kk 水生生物育成用多孔質成形体と該成形体からなる人工礁
JPH07222537A (ja) * 1994-02-10 1995-08-22 Nippon Data Service Kk 藻食性動物による食害を防止した水産資源用人工礁

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54117790A (en) * 1979-02-15 1979-09-12 Asahi Chemical Ind Production of artificial fish bank
JPS63178447U (fr) * 1987-05-13 1988-11-18
JPH0750952A (ja) * 1993-05-14 1995-02-28 Nippon Data Service Kk 水生生物育成用多孔質成形体と該成形体からなる人工礁
JPH07222537A (ja) * 1994-02-10 1995-08-22 Nippon Data Service Kk 藻食性動物による食害を防止した水産資源用人工礁

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095394A (ja) * 2004-09-29 2006-04-13 Akio Asahi 飲料水の浄化方法
US8312843B2 (en) * 2005-11-15 2012-11-20 Ora Technologies, Llc Artificial material conducive to attract and grow oysters, mollusks or other productive and/or stabilizing organisms
JP2009045006A (ja) * 2007-08-20 2009-03-05 Jfe Steel Kk 水中沈設用水和固化体
CN102177841A (zh) * 2011-05-09 2011-09-14 中国科学院南海海洋研究所 一种提高人工礁石表面藻类附着效果的方法
CN102177841B (zh) * 2011-05-09 2013-07-10 中国科学院南海海洋研究所 一种提高人工礁石表面藻类附着效果的方法
CN102630552A (zh) * 2012-04-01 2012-08-15 苏州安德鲁尹生物技术咨询有限公司 一种超高碘含量海带及其养殖方法和应用
CN104642216A (zh) * 2013-11-25 2015-05-27 山东大学（威海） 一种营养盐缓释人工鱼礁的制作方法
JP2016185098A (ja) * 2015-03-27 2016-10-27 株式会社ホクコン 環境改善型コンクリートブロック

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