JPH032136Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Field of Industrial Application" The present invention relates to the improvement of a fish reef body used in a cultivation device for gastropods such as abalone and tokobushi.

``Conventional technology'' Traditionally, aquaculture tanks for growing gastropod seedlings house fish reef bodies that take advantage of the habit of the seedlings hiding in the cage in which the seedlings are placed. In this method, a vinyl chloride plate as shown in FIG. 3 is bent into a number of chevron shapes, and a number of small holes are bored in the bent plate.

``Problems that the invention aims to solve'' However, because conventional fish reef bodies are simply formed by bending vinyl plates into a mountain shape, there is little surface area for seedlings to attach to, and the shape is flat. Because the condition was close to that of the previous one, the upper space could not be fully utilized when placed in a basket, resulting in poor productivity.

"Means for Solving the Problems" The present invention attempts to solve the above problems and has the following configuration.

A ceiling board with many small holes, a plurality of vertical shielding boards with many small holes and a notch in the lower center edge, and these vertical shielding boards are connected to the ceiling board. The side surfaces are formed into a T-shape while maintaining a space between them on the lower surface side.

By configuring as described above, the attachment area of the seedlings is significantly increased, the entire structure is formed into a vertical cube, and the upper space can be fully utilized when placed in the cage, and the shielding shade area is There are some methods that aim to improve productivity by increasing the size of the seedlings and making them fully correspond to the habits of the seedlings.

"Example" Hereinafter, the present invention will be explained with reference to illustrated embodiments.

FIG. 1 is a perspective view of a fish reef body for cultivating gastropods according to the present invention, and FIG. 2 is a front view of the fish reef body in use.

In the figure, 1 is a ceiling board with a large number of small holes 2, 2, . Board 4,
4, 4 are pressed together into a T-shape while holding the bottom portions 5, 5 for a predetermined period of time. In the illustrated embodiment, three vertical shielding plates 4 are formed on the ceiling plate 1, but due to the size relationship with the ceiling plate 1, gastropods such as abalones and tokobushi can move.
Moreover, it goes without saying that the number of sheets is not limited to this, as long as water permeability is maintained. In addition, each vertical shielding plate 4,
4, At the lower center edge of 4, there is a cutout hole 6 for a communication passage.
6, 6 are formed, which facilitates the movement of gastropods and improves water permeability.

Note that the ceiling plate 1 and the vertical shielding plate 4 are made of a hard synthetic resin material such as vinyl chloride.

Reference numeral 7 denotes an aquaculture tank, in which fish cages 8, 8, . 9 is a seawater supply pipe, and 10 is a water distribution pipe. When the fish reef body is placed in the fish cage 8, the vertical shielding plate 4 is placed parallel to the direction of seawater flow. 11 is an air pipe that blows out oxygen.

"Function" When the fish reef body according to the present invention is placed in the fish cage 8 as described above, the overall shape becomes three-dimensional and the height increases, creating an underwater space in the upper part of the fish cage that was previously unused. The seawater portion of the water can also be used effectively. Moreover, since the overall surface area becomes very large, the amount of seedlings attached also increases, and the culture density of shellfish in a unit volume can be significantly increased. In addition, if the ceiling board 1 and the vertical shielding boards 4, 4, 4 are installed so that all the boards are parallel to the water flow direction, the water flow in the space 5 formed by the vertical shielding boards. This allows sufficient seawater to come into contact with each wall surface. Furthermore, water permeability on both sides of the vertical shielding plates 4, 4, 4 is maintained by the small holes 2, 2, ..., 3, 3, ..., so that the seawater temperature, feed, and water quality are maintained. uniformity can be maintained, and variations in feeding rate and growth rate of seedlings can be eliminated.

Incidentally, each of the vertical shielding plates 4, 4, 4 is provided with a notch 6 which serves as a communication passage, so that the shellfish can move freely and the habits of the shellfish are not impaired.

"Effect of the invention" As mentioned above, the invention has a large number of small holes 2, 2,...
A plurality of vertical shielding plates 4, 4,... having a plurality of small holes 3, 3, ... and a cutout hole 6 formed at the lower center edge thereof, A plurality of vertical shielding plates 4, 4, . . . are formed by abutting each other on the lower surface side of the ceiling plate 2 with their sidewalls in a T-shape while maintaining space between them.

Therefore, it is possible to effectively utilize the underwater space that is three-dimensionally high and previously unused, and the area for seedlings to attach is large, so it is possible to increase the culture density of gastropods, and the effect of contact with seawater is large, making it easier to feed. By increasing the feed rate, productivity is significantly improved.

In addition, the fish reef body according to the present invention allows a homogeneous growth environment to be maintained anywhere in the aquarium, so there is no difference in the growth rate of cultured gastropods depending on where the fish reef body is attached. There is no.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a fish reef body for cultivating gastropods according to the present invention, FIG. 2 is a side view showing how the reef body is used, and FIG. 3 is a perspective view of a conventional fish reef body. 1... Ceiling board, 2, 2... Small hole, 3, 3... Small hole, 4
...Vertical shielding plate, 5, 5... Interval part, 6... Notch hole, 7...
Aquarium, 8...Image cage.

Claims (1)

[Claims for Utility Model Registration] A ceiling board 1 with a large number of small holes 2, and a plurality of vertical shielding boards 4 with a large number of small holes 3 and a notch 6 formed in the lower center edge. A fish reef body for cultivating gastropods, characterized in that the plurality of vertical shielding plates 4 are formed by colliding with each other in a T-shape on the side while maintaining a space 5 on the lower surface side of the ceiling plate 2.