1. TRUSS TYPE ARTIFICIAL REEF
2. ARTIFICIAL FISH REEF
3. ARTIFICIAL FISHING BANK
4. ARTIFICIAL FISH REEF
5. METHOD FOR PRODUCING ARTIFICIAL FISH-BREEDING REEF
6. METHOD FOR PRODUCING ARTIFICIAL FISH REEF AND APPARATUS FOR PRODUCING THE SAME
7. SEAWEED BED DEVELOPMENT BY USING PLASTIC ARTIFICIAL TURF TYPE ALGAL REEF BOARD
8. ARTIFICIAL FISH REEF
9. HYBRID FISH REEF
10. ARTIFICIAL FISHING REEF MEMBER AND ARTIFICIAL FISHING REEF
11. FACILITY FOR RAISING ABALONE, OR THE LIKE
12. ARTIFICIAL FISH-BREEDING REEF
13. ARTIFICIAL FISH REEF
14. ARTIFICIAL FISH REEF AND METHOD FOR PRODUCING THE SAME
15. METHOD FOR DEVELOPING ARTIFICIAL FISHING BANK OF TROPICAL OR SUBTROPICAL SEA AREA TYPE BY UTILIZING REEF-PRODUCING TYPE CORAL AS PART OF THE BANK
16. ARTIFICIAL FISH-BREEDING REEF
17. ARTIFICIAL FLOATING FISH REEF FOR SURFACE AND INTERMEDIATE LAYER
18. ARTIFICIAL CORAL REEF
19. ARTIFICIAL FISH REEF
20. STONE CONSTRUCTION MATERIAL AND ARTIFICIAL FISH REEF
21. MEMBER FOR REPELLING SEA URCHIN, METHOD FOR ATTACHING THE SAME AND ARTIFICIAL ALGAL REEF
22. SUBMARINE FOREST FISH-BREEDING REEF OF REPLACING THINNED LUMBER
23. ARTIFICIAL FISH-BREEDING REEF
24. ARTIFICIAL FISH-BREEDING REEF BUILT UNDER WATER
25. ARTIFICIAL SPAWNING BED FOR BIGFIN REEF SQUID
26. METHOD FOR DEVELOPING UNDERWATER FOREST
27. DEVICE FOR PRODUCING ARTIFICIAL FISH REEF
28. FISH-SPAWNING REEF PLANTED WITH ARTIFICIAL SEAWEEDS THEREON

TRUSS TYPE ARTIFICIAL REEF

Abstract: PROBLEM TO BE SOLVED: To impart high fish gathering functions and proliferating functions to an artificial fish reef. SOLUTION: A truss type artificial reef 1 has a bottom side part 2 and an apical part 3 and is provided with a three-dimensional truss structure 4 composed of a larger length of the bottom side than that of the height, an iron plate 5 composing a long floor fixed to the three-dimensional truss structure 4, resin molded products 6 and 7 of a spring structure fixed to the iron plate 5 and iron plates 8 of a prescribed shape (a polygon, especially a triangle herein) fixed to the three-dimensional truss structure 4. Furthermore, the three-dimensional truss structure 4 is preferably made of iron and cast iron may be fixed to the resin molded products 6 of the spring structure. The iron plate 5 may be cast iron and the three-dimensional truss structure 4 is a truss in which the assembly of members is three-dimensional and is a steel structure composed of a series of the triangular shapes with steel pipes or wire rods of steel plates.

ARTIFICIAL FISH REEF

A01G 33/00

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish reef having sufficient proliferation space for alga, not making the surrounding water alkaline, containing a nourishment for rearing algae, or the like and further, having water-clarifying action. SOLUTION: This artificial fish reef 100 is formed by mixing sand and a solidifying agent with a nitrate, charcoal, a metal, a bacterium, or the like, to form a globular body and connecting a plurality of the globular bodies in a planar state.

ARTIFICIAL FISHING BANK

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish reef which can simply be manufactured and has a high fish-gathering effect. SOLUTION: This artificial fish reef 10 formed by connecting the peripheries of a plurality of water-passing steel cases 11 to 14 to each other is characterized in that each of the water-passing steel cases 11 to 14 is a thick rectangular plate-like member comprising a rectangular outer frame 15 for forming the outside outline, an inner frame 17 for forming an inside opening 16, and porous plates 19, 20 for covering a cavity 18 formed with the outer frame 15 and the inner frame 17 from both the front side and the back side, and the cavity 18 is filled with many fillers 22 having sizes of 3 to 25 cm to form small organism-living spaces 23 where the organisms as the feeds of fishes can live.

ARTIFICIAL FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish reef effectively carrying out inhabitation/propagation of aquatic organisms such as marine organisms to be widely fed as baits for fishes, and the like, producible at a low cost by simple constitution using a material procurable in a large amount and contributing even to conservation of the natural environment such as environmental conservation of oceans, and forest conservation and promotion of regional economy. SOLUTION: This artificial fish reef is composed by mutually arranging or randomly accumulating a plurality of cylindrical bodies 1. Bamboos cut to a prescribed length and bored are used as the cylindrical bodies 1. The bamboos subjected to an imperfect carbonization treatment are used and the carbonization ratio of the imperfect carbonization treatment is ≤20%. The plurality of cylindrical bodies 10 are housed in each network case 2 to provide fish reef constituent units 3. The one or plurality of the resultant fish reef constituent units 3 are used to afford the artificial fish reef. The plurality of fish reef constituent units 3 are arranged in a housing 4 having a concrete or a rigid framework to provide the artificial fish reef.

METHOD FOR PRODUCING ARTIFICIAL FISH-BREEDING REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an artificial fish-breeding reef by producing a mold composed of a water-soluble material and using the mold. SOLUTION: Resin nets 33 are attached to the inside walls, longitudinal bars 41 and crossbars 42 of a box part 32. Each side of the box part is equipped with through holes for inserting the longitudinal bars 41 and the crossbars 42. The top of the box part is open. A great number of small holes 43 are bored through the sides of the box part 32 to pull out water. The gel-like water-soluble material sufficiently kneaded with water is poured into the box part 32 and water is pulled out from the small holes 43. When drying is advanced in a certain degree by air drying, etc., the longitudinal bars 41 and the crossbars 42 are removed. Then, after the material in the box body 32 is sufficiently dried by blowing hot air into the hollow part, the box body 32 is broke down to take out the solidified mold.

METHOD FOR PRODUCING ARTIFICIAL FISH REEF AND APPARATUS FOR PRODUCING THE SAME

A01K 61/00

C02F 11/00

Abstract: PROBLEM TO BE SOLVED: To produce an artificial fish reef readily eluting iron by utilizing wastes. SOLUTION: The subject method for producing the fish reef is carried out as follows. Pulp sludge, red mud and a binder are mixed and kneaded (S1). Furthermore, the kneaded pulp sludge, and the like, are cast into a perforated frame mold made of steel on a carriage and hot molded (S2). The wastes are then thermally melted at ≥1,200°C to form molten slag (S3). The formed molten slag at the high temperature is then cast into a hydrous kneaded mud mold (S4). After waiting for cooling/hardening of the slag (S5), the resultant hardened slag is taken out of the mold and as the fish reef thrown into the sea (S6).

SEAWEED BED DEVELOPMENT BY USING PLASTIC ARTIFICIAL TURF TYPE ALGAL REEF BOARD

A01G 33/00

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a technology for improving environmental conditions such as sea sand, mud, nutritious salts, environmental hormones, agrochemical, detergents, or the like, and difficulties for seedling production, or the like, in the artificial development of a seaweed bed for eelgrass, or the like. SOLUTION: The subject plastic artificial turf type algal reef board is applied and fixed on an artificial concrete fishing reef already installed in the sea but exhibiting not sufficient algal bed-developing effect so as to develop the seaweed bed by a small budget. Also, without using any concrete at all, and when using the plastic artificial turf type algal bed boards from the beginning, since it is possible to fix them at the sea bottom or by leaving them from the sea bottom with a small fishing boat, a cost for developing the seaweed bed becomes extremely inexpensive, and suitable for a public construction. Problems such that a conventional seaweed bed construction requires a high cost by using a high priced concrete and using a boat having a platform, and since it has a high hydrogen ion concentration, the sea weeds do not attach easily, and from second year on, the reef is covered with protozoea, shellfishes, or the like, to widely reduce the growing conditions of the seaweeds, or the like, and the seaweed bed developmental effect is not satisfied, are solved.

ARTIFICIAL FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish reef given by utilizing timber from forest-thinning, including cedar and cypress timber, and a waste material and making it possible that seaweeds useful as feed for fish and shellfish are easily adhered thereto. SOLUTION: This artificial fish reef is structured by forming solid bodies each of which is referred to as a fish reef unit (8) and arbitrarily combined the solid bodies with each other, wherein the fish reef unit (8) is formed by positioning an intermediate frame (1) inside an outer frame (2), so as to form spaces (5) on the top, bottom, and four side faces of the intermediate frame, then mixing and putting the waste material (6) in the intermediate frame, further pouring a solution (7) which is obtained by heat-treating waste plastics onto the waste material and into spaces between the intermediate frame and the outer frame, so as to fill the spaces with the solution, and finally putting a cover (4) on the top of the outer frame.

HYBRID FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a hybrid fish reef which can supply feeds from decayed thinnings to insects such as shipworms, can supply nutrients to sea water to promote the growth of fishes and shellfishes, can enhance an effect for gathering the fishes and the shellfishes, and enables the supply or exchange of the thinnings. SOLUTION: This hybrid artificial fish reef 10 for setting to sea bottom is characterized by combining concrete / steel / thinnings and receiving the thinnings in the fish reef in a state capable of being replenished or replaced. Concretely, the hybrid fish reef is characterized by forming a hollow box-like steel skeleton on a concrete base 11, detachably disposing several stages of timber-receiving boxes 14a, 14b, 14c, 14d in the steel skeleton, and receiving the thinnings in each timber receiving box in a laid state parallel to each other. The hybrid fish reef is characterized by further vertically disposing several thinnings 15 at a site for concealing each pillar 12 constituting the steel skeleton.

ARTIFICIAL FISHING REEF MEMBER AND ARTIFICIAL FISHING REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fishing reef member easy for attaching the spores of seaweeds, exhibiting a strong fixing power of the roots of the seaweeds and growing a place of seaweeds in a short period. SOLUTION: A mixture of wood powder and a resin is formed to a plate form by an injection molding method. By forming unevenness mimicking the surface of a rock on the surface of the plate on molding and also forming in a plurality of grooves and holes, the plate is prepared as the artificial fishing reef member. By forming a groove at the peripheral part of the artificial fishing reef member, a string-shaped seed bed is inserted into the groove. By combining in plurality of the artificial fishing reef members, the artificial fishing reef is constituted.

FACILITY FOR RAISING ABALONE, OR THE LIKE

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To form an ecological space of an existing pier and provide a raising facility for abalones, and the like, capable of providing a fishing bridge in an urban area by using a combination of a seaweed bed with an artificial breeding reef for abalones, or the like by using an artificial structure such as a pier. SOLUTION: The seaweed bed 3 installed in a depth to which sunlight irradiates and the artificial breeding reef 6 for abalones, or the like, installed in a lower part deeper than the seaweed bed 3 are installed along piles 2 of the pier 12.

ARTIFICIAL FISH-BREEDING REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef that has a low load applied to a mooring rope 2, has excellent flexibility and readily produces marine alga-like swinging. SOLUTION: This artificial fish-breeding reef has constitution that a line of buoyancy bodies 1 in which a plurality of the buoyancy bodies 1 are connected in a line by the single mooring rope 1 is fastened to a single line or two line anchor part 3 and the buoyancy bodies 1 and/or the mooring rope 2 is equipped with fish luring members 4 to form parts to become shades at which fishes are liable to gather.

ARTIFICIAL FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive fish reef, contributing to resource saving as it utilizes stems of thinned trees and plants, grass of Miscanthus sinensis, Phragmites communis, and the like, recycled aggregate, and the like, easily assembled and processed as it is light and excellent in transportation and processing, excellent in general use due to its small specific gravity to be applied to weak subsoil such as sludge, excellent in reliability without sinking of a structural body as it has legs, excellent in fish-gathering effect with a simple shape and easy handling. SOLUTION: This fish reef is constituted of the structural body having a frame formed of several frame materials in almost prismatic or pyramidal form and a plant-based filler-mixed cement board fixed to be arranged on each side face of the frame and installed with openings at least in two facing surfaces.

ARTIFICIAL FISH REEF AND METHOD FOR PRODUCING THE SAME

A01K 61/00

METHOD FOR DEVELOPING ARTIFICIAL FISHING BANK OF TROPICAL OR SUBTROPICAL SEA AREA TYPE BY UTILIZING REEF-PRODUCING TYPE CORAL AS PART OF THE BANK

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a fishing bank suitable for a coral reef sea area and exhibiting a high increased production of fishes. SOLUTION: This artificial fishing bank suitable for the coral reef sea area is provided by having a net 2 made from a steel, resin or chemical fiber at the opening part or the inside of a plane for forming three dimensional structure and fixing the reef-producing coral 3 with the net by using a wire, etc., to make a part of the artificial fishing bank.

ARTIFICIAL FISH-BREEDING REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef which is suitable for fishes and shellfishes, breeds, promotes the propagation of microorganisms and algae to become feed for fishes and shellfishes and has excellent fish-luring effect, in the artificial fish-breeding reef using seashells. SOLUTION: This artificial fish-breeding reef is composed of a concrete body 1 being an approximately three-dimensional frame body, an upper bed plate 2 and a middle bed plate 3 each having a surface in which a plurality of seashells are embedded. In the upper bed plate 2 and the middle bed plate 3, the plurality of seashells are embedded in concrete in a fixed depth so as to make the adjoining seashells approximately in parallel before hardening of concrete placed in a mold, thereafter the concrete is demolded and arranged as the concrete body 1. The artificial fish-breeding reef is obtained by using generally scraped scallop seashells, or the like, attaching microorganisms and spores of algae to become feed for extremely more fishes and shellfishes to the surfaces of a plurality of seashells and which forms gaps between the surface of the upper bed plate 2 or the middle bed plate 3 and the seashells. The gaps are preferable habitats and refuge places for small fishes and fries.

ARTIFICIAL FLOATING FISH REEF FOR SURFACE AND INTERMEDIATE LAYER

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a spawning ground and a propagation ground for surface and intermediate layer fishes. SOLUTION: A submerged floating fish reef made of a plastic material has U-shaped grooves in a digitate form. The bent part is provided with an insertion hole 1 and an engaging groove, and a belt plate 2 between the holes is provided with bamboo, or the like. A back groove 4 having a protrusion 3 is also provided with the similar parts. A connection hole 5 is formed perpendicular to a mooring rope. The bamboo, or the like, expanded slantly backward in upper and lower directions in the form of a fan has small resistance to tidal flow and the fish reef plate is maintained to be horizontal by the suppressing force of the upper- and down-streams. An artificial tree has an arched groove trunk and an artificial twig with leaves is attached to a crescent branch 7 to decrease the resistance to the tidal flow. The figures 5, 7 show the structure to widen the distance between of the artificial tree by changing the angles of the digitate grooves of the submerged fish reef. The figures 8, 9 show the case to change the angles of the slant support posts 19 of the wheel-like submerged fish reef to widen the distance between the tips of the artificial tree, bamboo, or the like, to increase the swimming area between the fish reefs and improve the reef effect.

ARTIFICIAL CORAL REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial coral reef to protect seaweed from biting damage and improve the fish-gathering effect by promoting the adhesion of the seaweed. SOLUTION: The artificial coral reef 1 has a unit structure. Each unit is composed of a three-dimensional spring structure member 3 having through-holes 2 and acting as a medium for the growth of tangle, a cast iron block 4 generating iron ions and a concrete weight 5 to prevent the drift of the reef by sea current. The cast iron block 4 is included in a prescribed part of the three- dimensional spring structure member 3. The through-hole 2 is extended in the longitudinal direction of the platy three-dimensional spring structure member 3 and the member may have through-holes extending in other directions. The three-dimensional spring structure member 3 is fixed to the concrete weight 5 with an adhesive (mortar, etc.), 6 and fixing attachments 7 each composed of an anchor bolt 8 fixed to the hole and a nut 9 engaging with the anchor bolt 8.

ARTIFICIAL FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish reef enabling easy adhesion of water grasses, seaweeds, alga, etc., having high fish gathering effect, resistant to the change with time and enabling easy transportation, installation, moving, etc. SOLUTION: Long members such as thinned lumber 10 or a metallic part are combined together in the form of a polygonal form such as a double cross form. A member to be submerged to the water bottom is placed around, in or out of the polygonal product to obtain the artificial fish reef. The submerging member 2 is composed of natural stones 4 each having a through-hole 3, connection members 5 inserted into the through-holes 3 of the natural stones 4 to connect the stones 4, and hooking members 6 fixed to both ends of each connection member 5 or engaging members 8 having an outer shape larger than the inner diameter of the through-hole 3.

STONE CONSTRUCTION MATERIAL AND ARTIFICIAL FISH REEF

E04C  3/20

A01K 61/00

E04B  1/30

E04C  1/40

E04C  3/36

Abstract: PROBLEM TO BE SOLVED: To provide a stone construction material which is adaptable for buildings even in a stone building on which a tension can be applied and by which a building sturdy against not only a pressure but also a tension can be built, and a sturdy artificial fish reel livable for fish. SOLUTION: The artificial fish reef is constituted of a stone material 11 and a tension support member 20 fitted along the longitudinal direction of the stone material 11. Reinforcements 22 are arranged in the tension support member 20, and the reinforcements 22 are arranged along the longitudinal direction of the stone material 11. The tension support member 20 is stuck to the stone material 11 by an adhesive layer 13. Hence, even a stone building on which a tension is applied can be constructed and further, a building sturdy to not only a pressure but also a tension can be built.

MEMBER FOR REPELLING SEA URCHIN, METHOD FOR ATTACHING THE SAME AND ARTIFICIAL ALGAL REEF

A01G 33/00

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a member for easily, surely and inexpensively protect sea grasses grown on an artificial algal reef, etc., from biting damage of sea urchin. SOLUTION: The sea urchin repelling member is composed of a foamed synthetic resin, a foamed natural resin or a composite material produced by using a foamed synthetic resin or a foamed natural resin, having a density of ≤800 kg/m3 and provided with linear material, ribbons or strips 12 swaying in water. The member 14 is attached to a side face of an artificial algal reef 40 at a part under the area to grow the sea grasses 42.

SUBMARINE FOREST FISH-BREEDING REEF OF REPLACING THINNED LUMBER

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef suitable for inhabitation/ breeding of various kinds of fishes and shellfishes. SOLUTION: The submarine forest fish-breeding reef of replacement type is equipped with a base frame part 2 in which a plurality of pillar parts 8 are stood from a base part 7 formed from concrete and/or iron steel in a frame shape, a lattice part 3 composed of a plurality of thinned lumbers 13a assembled in a lattice shape on the base part 7, a raised bottom part 4 attached to a plurality of thinned lumbers 13b assembled in a lattice shape under the bottom side of the base part 7 and a fence form storage frame 5 enclosing attendant stones 14 placed on the lattice part 3. Marine algae 6 are transplanted into the pillar parts 8.

ARTIFICIAL FISH-BREEDING REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef, which forms a shelter, provides a spawning ground to make fishes calmly spawn, supplies fresh seawater to fish roe, promotes the growth of the fish roe and is simply produced. SOLUTION: A plurality of thin plates 10 provided with linking holes 11h are connected at intervals in the vertical direction by connection parts 20. The connection parts 20 are sandwiched between the thin plates 10 and 10 and are constituted of spacers 21 provided with linking holes 21h and connection rods 22 to be inserted into the linking holes 11h of the thin plates 10 and the linking holes 21h of the spacers 21. Consequently, since the intervals between the thin plates 10 function as a spawning ground of fish and a shelter is formed by a plurality of the thin plates 10, a spawning ground to make fishes calmly spawn is provided.

ARTIFICIAL FISH-BREEDING REEF BUILT UNDER WATER

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef built under the water, with which the surface 1a of a block has a self-cleaning function by simple operation. SOLUTION: Only the fitting part 2c of a rope-like cleaning body 2 is attached to the top of the block from a water surface S. Consequently, when a float 3 moves by a water flow or waves, the rope-like cleaning body 2 is slid along the surface 1a of the block 1 following the float and harmful deposits are removed to expose a fresh surface to seawater.

ARTIFICIAL SPAWNING BED FOR BIGFIN REEF SQUID

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To culture a bigfin reef squid or develop a new fishing ground for the bigfin reef squid by providing an artificial spawning bed for the bigfin reef squid. SOLUTION: This artificial spawning bed for the bigfin reef squid is characterized by fixing the lower end (1a) of a cage body (1) composed of carbon fiber strings to the bottom (3) of the sea and mounting a float (5) onto the top (1b) of the cage body (1). Furthermore, the cage body (1) is obtained by arranging an inner cage (13) composed of the carbon fiber strings in the interior of an outer cage (11) composed of the carbon fiber strings.

METHOD FOR DEVELOPING UNDERWATER FOREST

A01G 33/00

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To easily and certainly attach a seed and seedling of seaweeds such as Eisenia bicyclis and Sargassum on the surface of shore reefs such as a natural stone and an artificial block. SOLUTION: This method initially comprises releasing the seed and seedling of Eisenia bicyclis into a water tank installed on the land, immersing a sheet base material 6 made of a biodegradable nonwoven fabric into the water tank, attaching the seed and seedling 1 of Eisenia bicyclis on the sheet base material 6 to make a seed and seedling sheet 2 and cutting out the sheet 2 into a rectangle to make small pieces 3 of the seed and seedling sheet. On the other hand, the method subsequently comprises separately preparing small pieces 4 of a ground sheet made of the same biodegradable nonwoven fabric, initially sticking the small pieces 4 of the ground sheet on the surface of a block 5 by an adhesive, then joining the small pieces 3 of the seed and seedling sheet 2 on the small pieces 4 by heat fusing and installing the block 5 to a proposed improved area in the water. Thereby, the root of the seed and seedling 1 of Eisenia bicyclis is extended along the small pieces 3 and 4 and attached on the surface of block around the small pieces and the whole thereof is attached on the surface of block when the small pieces 3 and 4 are biodegraded.

DEVICE FOR PRODUCING ARTIFICIAL FISH REEF

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide a device for producing an artificial fish reef, not requiring a frame-removing work in the bottom of the sea, and capable of producing the artificial fish reef simply and at a low cost by utilizing dredged soil, sludge and coal ash. SOLUTION: This device for producing the artificial fish reef is provided by arranging a hermetically closed container 6 formed by a sheet member along an inner circumference of a box-shaped outer frame formed by joining logs together, and feeding a container 3 mounted with a pipe for a fish way and a mix-treated solidifying material, dredged mud, sludge or coal ash into the container through a placing pipe 4.

FISH-SPAWNING REEF PLANTED WITH ARTIFICIAL SEAWEEDS THEREON

A01K 61/00

Abstract: PROBLEM TO BE SOLVED: To provide fish-spawning reefs planted with artificial seaweeds that stimulate the fishes spawning in the seaweed beds on the coast, for example, sandfish or herring, particularly suitable on the coast covered with wave- dissipating blocks and bedrocks. SOLUTION: In a fish-spawning reef covered with artificial seaweeds set underwater for stimulating fish spawning, the artificial spawning bedrocks 1 are each constituted with the artificial bedrock 2, artificial seaweeds 3 fixed to the bedrock 2, which has a circular frame 4 for fixing artificial seaweeds, a holder set to the circular frame 4 and an anchor pole 6 set to the holder. The anchor pole 6 is fixed to the hole 11a bored on the wave-dissipating block or bedrock 11 and the artificial seaweeds are planted on the seaweed-setting frame 4.