Breeding tool

Abstract

To provide a breeding tool in which feed does not rot and which does not cause environmental stress in seaweeds to be bred.SOLUTION: A spacer 15 is arranged on a tray-shaped seaweed housing bag 14 as shown in Fig.4. The spacer 15 consists of a base 16 in which a plurality of ring-shaped members are connected, and columnar parts 17 which extend upward from the base 16. The columnar parts 17 secure a growing space of seaweed above the seaweed housing bag 14, and the columnar parts 17 are uniformly arranged in the growing space. Therefore, stress is not applied to growth of seaweeds in the growing space and seaweeds do not move in the growing space to gather in one place.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a cultivation device used when cultivating seaweed such as sea grapes in an aquarium. [Background technology]

[0002] In order to ensure a stable supply of seaweed resources, devices that enable seaweed cultivation on land away from the sea have been proposed.

[0003] Patent Document 1 proposes an aquaculture device that places columnar anchoring members in the center of a translucent cylindrical tank to anchor seaweed seedlings such as sea grapes, irradiates the tank from the outside with artificial light suitable for seaweed growth, and diffuses gas from the bottom of the tank to create a current within the tank.

[0004] Patent Document 2 discloses that horizontal culture shelves are provided in horizontally placed water tanks placed in a greenhouse, and sea grape seedlings are placed on the culture shelves at predetermined intervals.

[0005] Figure 6 shows a sheet-like seedbed currently in use. Sea grapes are placed on the seedbed (net) in an unfolded state as shown in (A), and then closed as shown in (B). Cultivating them in this state prevents the sea grapes from moving due to water currents. It is also possible to cultivate the seedlings by storing them in a box-shaped net. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2023-048268 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-330119 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0007] In Patent Document 1, mother algae (seedlings) such as sea grapes are sandwiched between two mesh materials as fixing members. In this way, sandwiching the seedlings between two pieces of mesh material will compress them and hinder their growth.

[0008] The structure of the culture racks shown in Patent Document 2 is simply plate-like or net-like, with no restriction on the space above the seedlings. This means that the seeds move around due to the water currents in the tank and end up clumped together in one place. Furthermore, fixing each seedling at a fixed interval on the rack from the beginning to prevent them from moving is a time-consuming task.

[0009] In the conventional technology shown in Figure 6, the aquaculture target is pinched and restrained from above and below, which may hinder growth. Also, when cultivating seedlings by storing them in a box-shaped net, there is a problem that the seedlings move around inside the box-shaped net and end up clumped together in one place. [Means for solving the problem]

[0010] In order to solve the above problems, the present invention provides a seaweed cultivation device comprising a base with legs that ensure a gap between the base and the bottom of the cultivation tank for water to flow, a seaweed storage net that is placed on the base, and a spacer that is placed on the seaweed storage net to ensure a growth space for the seaweed and to restrict the movement of the seaweed.

[0011] The leg members, seaweed containing nets or spacers may be constructed as a single unit, or may be integrally formed with other members. [Effects of the Invention]

[0012] According to the present invention, the leg members ensure a gap between the aquaculture equipment and the bottom of the aquaculture tank through which water flows, so that food does not accumulate on the bottom of the tank and rot.

[0013] In addition, unlike conventional methods, the seaweed is not constrained by being pinched from above and below, which reduces stress on the seaweed and promotes its growth. Furthermore, even when the seaweed is given free growth space, the evenly spaced columnar spacers prevent it from clumping together in one place within the growth space.

[0014] Furthermore, the seaweed does not grow too densely in the growing space, photosynthesis is carried out sufficiently, and it is less susceptible to disease. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a side view of an aquaculture tank showing an example of use of the aquaculture equipment according to the present invention. [Figure 2] FIG. 1 is an exploded perspective view of components constituting the aquaculture device according to the present invention. [Figure 3] A diagram showing the wire net fixed on the base [Figure 4] A diagram showing the spacers set on top of the seaweed storage net [Figure 5] FIG. 1 is a diagram showing the assembled state of the components constituting the aquaculture device according to the present invention. [Figure 6] (A) and (B) are diagrams showing a conventional mobility device. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1 shows an aquaculture tank set on the floor, in which an aquaculture device 1 according to the present invention is installed. Note that the aquaculture tank in which the aquaculture device 1 is installed is not limited to the structure shown in the figure.

[0017] The aquaculture tank is fixed to the floor by a support rack 2, with a tank 4 placed on the middle level 3 of the support rack 2, and an aquaculture water circulation unit 5 placed on the floor below the middle level 3. This aquaculture water circulation unit 5 is composed of a filtration unit that filters the aquaculture water after it has passed through a foreign matter removal unit, as well as a heater, cooler, germicidal lamp, water pump, etc.

[0018] The depth of tank 4 is set to 20cm to 50cm to facilitate work and allow the light from the lamp to reach the bottom. By attaching air outlets 6 to the water supply port of tank 4 and below its wall, the bubbles that are ejected rise along the side, creating an upward water current that is pulled by the bubbles and circulates the water from the bottom to the surface within the tank, supplying nutrients and fresh seawater to the sea grapes and helping the seedlings grow.

[0019] A plant growth lamp (LED) 8 is attached to the upper bar 7 of the support rack 2. The plant growth lamp 8 is installed approximately 50 cm above the water surface of the aquarium 4. The plant growth lamp 8 is attached to the support rod via a joint so that the angle can be adjusted.

[0020] The aquarium 4 is surrounded by a shielding body 9 such as a curtain. By blocking light from outside, a planned and stable illuminance can be obtained by lighting inside the aquarium. By installing a light-reflecting plate such as aluminum on the side of the aquarium, the inner surface (side of the aquarium) of this shielding body 9 becomes a reflective surface, which reflects the light from the plant growth lamp 8 towards the aquarium 4. With this configuration, the entire aquarium can be uniformly illuminated even if the distance between the water surface and the plant growth lamp 8 is as small as 50 cm or less.

[0021] The culture water in the tank 4 is filtered and foreign matter is removed in the circulation section 5. The filtered culture water has the necessary amount of artificial seawater added, and solid food is added to dissolve in the filtered water, or water-soluble food is added, and the temperature is adjusted before being sent to the tank.

[0022] The aquaculture device 1 has a base 11. Legs 12 extend downward from this base 11, and when the aquaculture device 1 is placed in the aquarium 4, a gap is formed between the base 11 and the bottom of the aquarium to ensure water flow. The formation of the gap prevents stagnation of food and rot.

[0023] A wire tray-shaped seaweed storage basket 14 is fixed on the base 11 via a wire net 13 shown in Figure 3. The seaweed storage basket 14 may be fixed directly to the base 11 without the wire net 13. Alternatively, the base 11 and the seaweed storage basket 14 may be integrally molded directly.

[0024] As shown in Figure 4, a spacer 15 is placed on top of the tray-shaped seaweed storage basket 14. This spacer 15 consists of a base 16 made up of multiple connected ring-shaped members and pillar-shaped sections 17 extending upward from the base 16. The pillar-shaped sections 17 ensure a seaweed growth space above the seaweed storage basket 14, and the pillar-shaped sections 17 are evenly spaced within the growth space. This prevents stress on the seaweed within the growth space and prevents the seaweed from moving around and clumping together in one place.

[0025] An upper net 18 is placed over the spacers 15. This upper net 18 may be an inverted seaweed storage basket 14 as shown in FIG. [Industrial Applicability]

[0026] The aquaculture equipment of the present invention has a high degree of freedom in terms of the location where it can be used, and is applicable not only to aquaculture houses dedicated to aquaculture, but also to aquaculture tanks installed inside buildings, etc. [Explanation of symbols]

[0027] 1...aquaculture equipment, 2...support rack, 3...middle shelf of support rack, 4...aquarium, 5...aquaculture circulation section, 6...air outlet, 7...upper bar of support rack, 8...plant growth rack, 9...shield, 11...base, 12...legs, 13...wire net, 14...seaweed storage basket, 15...spacer, 16...base, 17...columnar section, 18...upper net

Claims

1. This is a culture device for cultivating seaweed in a culture tank, characterized in that it comprises a base with legs that ensure a gap between the base and the bottom of the culture tank for water to flow, a seaweed storage basket that is placed on the legs, and a spacer that is placed on the seaweed storage basket to ensure a growth space for the seaweed and to restrict the movement of the seaweed within the growth space.

2. 2. The aquaculture device according to claim 1, wherein the leg member, the seaweed storage basket or the spacer is integrally formed with another member.

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