JP2007014231A - Rearing apparatus for fish and shellfish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rearing apparatus for fishes and shellfishes easy to put into/drawing out of water and move, and transportable with a slight labor, thus good in economy/workability. <P>SOLUTION: The rearing apparatus for fishes and shellfishes has the following construction: Multiple horizontal and narrow projected plates 2 are set on the flank of a vertical plate material to prepare a partition plate 1, a plurality of these partition plates 1 are arranged in a water-permeable vessel 5 impassable for fishes and shellfishes, the projected plates 2 are pressed on the flanks of the partition plates 1 and fixed in the vessel 5 with the partition plates 1 at predetermined intervals, and the vessel 5 is immersed in water to form a fishbank comprising the partition plates 1 and the projected plates 2, thereby ensuring fishes and shellfishes to be reared. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a breeding apparatus for fish and shellfish such as abalone and okoze.

As a conventional rearing apparatus, the one shown in Patent Document 1 has been proposed. In this technique, a plurality of vertical partition plates each having a plurality of projecting plates projecting on the side surface in a water tank in which water circulates are arranged substantially in parallel with the water flow direction and at a predetermined interval along the width direction of the water tank, Each partition plate is fixed with bolts in a state where the projecting plate of the partition plate is pressed against the side surface of the adjacent partition plate, and a fish reef is formed with the partition plate and the projecting plate so that it can be raised. is there. By the way, the said technique requires the large sized water tank for circulating water, and the installation place was limited and costly, and movement was also difficult. In addition, shells after breeding are collected by removing the partition plate from the water tank, but the workability is poor because it falls during transportation or shells escape to the water tank.
JP 2004-129606 A

  The problem to be solved by the present invention is to overcome these conventional problems, and to bring up fish shellfish with excellent economic efficiency and workability, which can be easily carried out with little effort with taking in and out of the water and transferring the fish and shellfish. To provide an apparatus.

The configuration of the present invention that solves this problem is as follows.
1) Plural horizontal narrow plates projecting from the side of a vertical plate are used as partition plates, and multiple partitions are arranged in a water-permeable container through which fish and shellfish cannot pass. The plate is pressed against the side of the adjacent partition plate and the partition plates are spaced apart from each other and fixed in the container by fixing means, and the container is immersed in water to form a fish reef with the partition plate and the overhanging plate. 2) Fish shellfish breeding device characterized by being able to breed fish shellfish 2) The fixing means of the partition plate allows long bolts to communicate with each partition plate and the opposite side wall of the container, and both ends of the bolt The fish shell raising apparatus 3) according to the above 1), wherein the portion protrudes to the outside of the side wall of the container, and a nut is screwed onto the end of the protruding bolt so as to be detachably fixed to the container. The protruding plate of the partition plate is protruded by shifting the position so that all or part of the protruding plate can be seen from above. ) Or 2) Fish and shellfish breeding device 4) The fish shellfish according to any one of 1) to 3) above, wherein an opening is formed on a side surface of the partition plate, and water flow and movement of the fish and shellfish are enabled at the opening. Breeding device 5) The fish shell raising device according to any one of 1) to 4), wherein the vessel is suspended in a floating body floated on the surface of the water and partially immersed in the container. The fish shell raising device according to any one of 1) to 5) above, wherein a net having an opening is stretched and a sealing means is provided at an opening of the net.

  According to the present invention, the entire container can be immersed in the sea and the like, can be implemented at low cost without requiring a large water tank that takes an installation place, and the breeding place can be easily moved. Further, since the partition plate is taken out from the water in the state of being put in the container, the fish and shellfish do not fall or escape during the take-out, and can be easily transported to the collection place and has excellent workability.

  As a material constituting the partition plate and the overhang plate of the present invention, what is constituted by mixing fiber-reinforced plastic with diatomaceous earth and a necessary filler as required is excellent in adhesion and growth of shellfish and handling. It is easy and preferable. The overhanging plate is provided as a spacer that moves between partition plates of shellfish, arrangement of feed, and spacers that arrange the partition plates at a predetermined interval, and is projected so as to be completely or partially visible from above. The feed can be easily arranged.

  The container is made of plastic and metal and has a water-permeable mesh size that can be easily carried by the operator. The upper part is opened for the entry and exit of the partition plate. Tighten or close with a net-like plastic lid. In addition, an openable opening may be formed in the net, and an open / close door may be provided in the lid to facilitate feeding of feed. As a fixing means for the partition plate, a long bolt is generally communicated and screwed with a nut outside the side wall of the container. However, the partition plate is stretched between the inner side wall of the container and the side surface of the partition plate. If a biasing means such as a member or a spring is provided, only a desired partition plate can be easily put in and out. Embodiments of the present invention will be specifically described below with reference to the drawings.

  The embodiment shown in FIGS. 1 to 7 is an example in which the fish and shellfish breeding apparatus of the present invention is used for artificial abalone culture. FIG. 1 is a partially cutaway perspective view of the breeding apparatus of the embodiment, FIG. 2 is a perspective view of the partition plate of the embodiment, FIG. 3 is a plan view of the breeding apparatus of the embodiment, and FIG. FIG. 5, FIG. 5 is an explanatory diagram during breeding of the embodiment, FIG. 6 is an explanatory diagram showing the arrangement of abalone of the embodiment, and FIG. 7 is a perspective view of a breeding device of another example of the embodiment. In the figure, 1 is a partition plate, 2 is an overhang plate, 3 is an opening, 4 is a bolt hole, 5 is a container, 6 is a bolt, 7 is a spacer, 8 is a washer, 9 is a nut, 10 is a net, and 11 is input A mouth, 12 is a sealing string, A is an abalone, F is a floating body, W is seawater.

  1 to 4, the rearing apparatus of this embodiment is arranged and fixed in a plurality of partition plates 1 each having a plurality of projecting plates 2 projecting on the side surface in a mesh-like container 5 through which abalone A cannot pass. To do. The container 5 is made of a hard plastic such as polypropylene having a length of about 80 cm, a width of 50 cm, and a depth of about 40 cm. Specifically, a bird cage used for poultry farming can be applied. The upper surface of the container 5 is opened for the entry / exit of the partition plate 1, but a net 10 may be stretched so that the abalone A will not escape during breeding. 7 can be opened and closed partly, or as shown in FIG. 7, the central part of the net 10 is opened and extended upward to form an inlet 11 with a sealing string 12 for easy feeding of feed. It may be.

  The partition plate 1 is made of FRP (fiber reinforced plastic) having a specific gravity of 1.2 mixed with diatomaceous earth and a filler, a length of 60 cm, a height of 30 cm, and a thickness of 15 mm. Five I-shaped overhanging plates 2 having a width of 90 mm are projected so that the upper surface can be entirely or partially seen from above, and water and abalone A come to the center of the partition plate 1. An elliptical opening 3 is formed, and bolt holes 4 for passing bolts 6 for fixing the partition plate 1 in the container 5 are formed on both sides of the partition plate 1.

  A plurality of the partition plates 1 are arranged in the container 5, a spacer 7 is formed between the inner wall of the container 5 and the partition plate 1 facing the inner wall, and a bolt 6 having a length of 55 cm is interposed. The spacer 7 and the bolt hole 4 of each partition plate 1 are communicated from the mesh of the side wall of the container 5 and passed through the mesh of the side wall of the opposite container 5 so that both ends of the bolt 6 project outside the side wall of the container 5. The bolt 6 is screwed with a nut 9 via a washer 8, and the overhanging plate 2 is pressed against the side surface of the adjacent partition plate 1 to fix the partition plates 1 at a predetermined interval. In addition, the one partition plate 1 at the extreme end is not provided with the protruding plate 2.

  The abalone A larvae are attached to the partition plate 1 and the net 10 is stretched. As shown in FIG. 5, the floating body F such as a raft is floated on the sea surface, and the container 5 is suspended by a rope or the like. Immerse in. When feeds such as rotifers, planktons, and algae are dropped into the container 5, the feeds sink in the water and are placed on the upper surface of the overhanging plate 2, and the abalone A is fed and fed. Part of the feces discharged from the abalone A and the feed not arranged on the overhanging plate 2 passes through the mesh on the bottom surface of the container 5. After the growth, the container 5 is pulled up, moved by the floating body F, transported and collected. The breeding place can be easily changed by moving the floating body F.

  The fish and shellfish breeding apparatus of the present invention is mainly used for breeding shellfish such as abalone, but can also be applied to aquaculture such as okoze.

It is a partially cutaway perspective view of the breeding device of the example. It is a perspective view of the partition plate of an Example. It is a top view of the breeding apparatus of an Example. It is a longitudinal cross-sectional view of the breeding apparatus of an Example. It is explanatory drawing during breeding of an Example. It is explanatory drawing which shows arrangement | positioning of the abalone of an Example. It is a perspective view of the breeding apparatus of the other example of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Partition plate 2 Overhang plate 3 Opening 4 Bolt hole 5 Container 6 Bolt 7 Spacer 8 Washer 9 Nut 10 Net 11 Input port 12 Sealing string A Abalone F Floating body W Seawater

Claims (6)

  Plural horizontal narrow plates projecting from the side of a vertical plate are used as partition plates.The partition plates are arranged in a water-permeable container through which fish and shellfish cannot pass. Press against the side face of the adjacent partition plate, keep the partition plates apart from each other, fix them in the container with fixing means, immerse the container in water, form a fish reef with the partition plate and the overhanging plate, and fish A device for raising fish and shellfish, characterized in that shellfish can be raised.   The fixing means of the partition plate allows long bolts to communicate with each partition plate and the opposite side wall of the container so that both ends of the bolt protrude outside the side wall of the container, and a nut is screwed onto the end of the protruding bolt. The apparatus for raising fish shellfish according to claim 1, wherein the apparatus is detachably fixed to the container.   The fish shell rearing apparatus according to claim 1 or 2, wherein the protruding plate of the partition plate is protruded by shifting the position so that all or part of the protruding plate can be seen from above.   The fish shell breeding apparatus according to any one of claims 1 to 3, wherein an opening is formed on a side surface of the partition plate, and water flow and movement of the fish and shellfish are enabled through the opening.   The fish shell breeding apparatus according to any one of claims 1 to 4, wherein the container is suspended in a floating body floating on the water surface and immersed in water.   The fish shell breeding apparatus according to any one of claims 1 to 5, wherein a net having a part thereof opened by opening an upper part of the container is stretched and a sealing means is provided at an opening of the net.

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