JP4691218B2 - Tuna farming equipment - Google Patents

Description

  The present invention relates to a tuna culture device, and more particularly to a device for swimming and cultivating tuna by flowing pond water in a certain direction. However, in this specification, the aquaculture device corresponding to the tuna ranch is used not only to increase the size of the tuna but also to include a device for temporarily raising the tuna.

The present inventor has developed a fish culture pond that is installed on the ground and allows pond water to flow in a certain direction. (See Patent Document 1) In this aquaculture pond, as shown in FIG. 1, a plurality of ring ponds 91 are arranged concentrically. In this aquaculture pond, the pond water of each ring pond 91 flows as indicated by arrows. This aquaculture pond can cultivate migratory fish tuna while swimming the fish against the pond water flow of the ring pond 91. This aquaculture pond can grow in an ideal environment close to nature while swimming tuna. The tuna that has grown greatly in the pond needs to be removed from the pond. When removing tuna from the aquaculture pond, if the tuna goes wild, the taste of the fish will deteriorate. The ideal way to ship tuna is to take it out of the culture pond so that it won't be exposed, and then quickly stab and refrigerate it. Currently, in order to pick up tuna from aquaculture ponds, they are picked up and slaughtered by raising them with bait. However, this method is not only very troublesome to pick up, but it is also difficult to catch tuna so as not to expose it. Also, it is not possible to select and pick up tuna of the shipping size.
Japanese Utility Model Publication No. 63-119357

  The present invention has been developed for the purpose of solving the above drawbacks. An important object of the present invention is to provide a tuna culturing device that can be picked up from a culturing pond so that it can be easily and easily uncovered while sorting tuna of a shipping size.

The tuna culturing apparatus of the present invention has the following configuration in order to achieve the above-described object.
The tuna farming apparatus includes a ring wall 2 provided with an annular ring pond 1 having a predetermined width, and a forced fluidizer 15 forcibly flowing the pond water of each ring pond 1 provided between the ring walls 2. Is provided. Further, the tuna farming apparatus has a tuna intake pond 5 connected to the outside of the ring pond 1, and the tuna is guided from the ring pond 1 to the upper pond 5 and taken out from the intake pond 5. ing.

  In the tuna culturing apparatus according to claim 2 of the present invention, the intake pond 5 is arranged in parallel adjacent to the ring pond 1, and the forced fluidizer 15 is the pond water of both the intake pond 5 and the ring pond 1. Are flowing in the same direction.

  In the tuna culturing apparatus according to claim 3 of the present invention, the width of the intake pond 5 is narrower than that of the ring pond 1. Further, in the tuna culturing apparatus according to claim 4 of the present invention, the width of the intake pond 5 is 50 cm or more and 1.5 m or less.

  In the tuna culturing apparatus according to claim 5 of the present invention, a curved wall 52 is provided outside the outer ring wall 2A of the ring pond 1 in parallel with the outer ring wall 2A, and between the curved wall 52 and the outer ring wall 2A. The Torigami Pond 5 is provided.

  In the tuna culturing apparatus according to claim 6 of the present invention, an open / close guide 54 is provided at a connecting portion between the intake pond 5 and the ring pond 1, and the open / close guide 54 is opened to remove the tuna from the ring pond 1. Guide to pond 5.

  In the tuna culturing apparatus according to claim 7 of the present invention, both ends of the intake pond 5 are connected to the ring pond 1, and open / close guides 54 are provided at the connecting portions at both ends of the intake pond 5. This aquaculture device opens one open / close guide 54 to guide the tuna in the ring pond 1 to the upper pond 5, and opens the other open / close guide 54 to return the tuna in the upper pond 5 to the ring pond 1.

  Furthermore, in the tuna culturing apparatus according to claim 8 of the present invention, the open / close guide 54 has water permeability that allows the tuna to pass through the pond water.

  The tuna culturing apparatus according to claim 9 of the present invention is provided with a picking tool 10 for taking out tuna from the collecting pond 5. The lifting tool 10 includes a loading portion 10A that guides the tuna into the collecting pond 5 and a pulling portion 10B that is connected to both ends of the loading portion 10A. In this aquaculture device, tuna is put on the mounting portion 10 </ b> A of the pick-up tool 10, pulled up by the pulling portion 10 </ b> B, and taken out from the upper pond 5.

  Furthermore, in the tuna culturing apparatus according to claim 10 of the present invention, the lifting tool 10 connects the two rods 14 on both sides of the sheet material 11, the sheet material 11 is placed on the loading portion 10 </ b> A, and the rod 14 is pulled up 10 </ b> B. It is said. Furthermore, in the tuna culturing apparatus of claim 11 of the present invention, the sheet material 11 of the lifting tool is connected to the water-permeable net 13 on both sides of the non-water-permeable bottom sheet 12.

  The tuna culturing apparatus of the present invention can be picked up from the pond so as to be easy and easy and not to be exposed while sorting out the tuna of the shipping size. For this reason, while picking up a tuna efficiently and quickly, it has the feature which can prevent that a tuna violates when picking up and the quality of fish meat falls. This is because the aquaculture apparatus of the present invention provides a ring pond between the ring walls to force the pond water of the ring pond to flow, and connects the tuna intake pond to the outside of the ring pond. This is because tuna is taken from the pond to the upper pond and taken out from the pond. Thus, since the aquaculture apparatus of the present invention guides and takes out the tuna from the ring pond to the take-up pond, unlike the conventional case, it can be taken out ideally while selecting the tuna of the shipping size. In the ring pond where the pond water is forced, tuna swims against the flow. Therefore, the tuna swimming in the ring pond can be smoothly guided to the intake pond connected to the ring pond.

  In particular, the tuna culturing apparatus according to claim 2 of the present invention has the intake pond arranged in parallel adjacent to the ring pond and the same pond water in both the intake pond and the ring pond with the forced fluidizer. It is flowing in the direction. This aquaculture device can smoothly guide tuna swimming in the ring pond against the flow from the ring pond to the Toritake pond. Moreover, since the tuna guided to the intake pond swims against the flow in the intake pond, the relative speed relative to the intake pond can be reduced even if the speed relative to the pond water is high. This is because the moving speed of the tuna with respect to the intake pond is the difference between the swimming speed of the tuna and the flow speed of the pond water. For this reason, the tuna guided to the Torikami Pond can be easily supplemented and taken up.

  Furthermore, the culture device according to claim 3 of the present invention is such that the width of the intake pond is narrower than the ring pond, and the culture device according to claim 4 is that the width of the intake pond is 50 cm or more. .5m or less. For this reason, the tuna guided to Torikami Pond can be picked up easily.

  Furthermore, in the aquaculture device according to claim 5 of the present invention, a curved wall is provided outside the outer ring wall of the ring pond in parallel with the outer ring wall, and the intake pond is provided between the curved wall and the outer ring wall. Provided. In this structure, a curved wall is provided on the outside of the ring wall so that a take-up pond can be easily provided, and the take-up pond and the ring pond are arranged in parallel so that tuna swimming in the ring pond can be smoothly You can guide to Torikami Pond.

  Furthermore, in the aquaculture device according to claim 6 of the present invention, an open / close guide is provided at a connection portion of the intake pond with the ring pond, and the open / close guide is opened to guide the tuna in the ring pond to the upper pond. The tuna swimming in the ring pond can be reliably guided to the Toriike pond. In particular, in the aquaculture device according to claim 7 of the present invention, both ends of the intake pond are connected to the ring pond, and opening / closing guides are provided at the connecting portions at both ends, and one of the opening / closing guides is opened to remove the tuna from the ring pond. It is guided to the Toriike Pond, and the other open / close guide is opened so that the Tuna in the Toritake Pond is returned to the Ring Pond. The intake pond of this structure smoothly guides the tuna of the ring pond to the upper pond, determines the size of the tuna in the intake pond, and the tuna picked up is discharged from the intake pond, and the tuna not picked up Open the opening and closing guide, you can easily return to the ring pond. For this reason, the tuna to be picked up can be discharged while being easily selected. In the aquaculture device according to claim 8 of the present invention, since the open / close guide has a water permeability structure that allows the pond water to pass therethrough and does not allow the tuna to pass therethrough, the open / close guide can be opened and closed while circulating the pond water in the intake pond. . In addition, since the pond water can be circulated in the Toritake Pond, it is possible to effectively prevent the Toriike Pond from stagnation.

  Furthermore, the aquaculture device according to claim 9 of the present invention is provided with a take-up tool for taking out tuna from the take-up pond, and the take-up tool is placed in the take-up pond and guides the tuna inside, Since it has a pull-up part connected to both ends of this mounting part, put the tuna guided to the collection pond into the mounting part of the lifting tool, pull it up at the pulling part, and easily and quickly tuna Can be removed from the ring pond. In particular, in the tuna culturing apparatus according to claim 10 of the present invention, since the lifting tool connects two rods on both sides of the sheet material, the sheet material is placed thereon, and the rod is used as the pulling portion. Holding the rod, the sheet material is put into the upper pond, and the two rods are pulled up to lift the sheet material from the upper pond, so that the fish can be quickly taken out without being damaged. Furthermore, the tuna culturing apparatus according to claim 11 of the present invention prevents the tuna from being damaged because the sheet material of the lifting tool is formed by connecting a water flow net to both sides of the non-water-permeable bottom sheet. There is a feature that can be taken up efficiently. This is because it is possible to quickly remove the tuna by draining it with the water nets on both sides while preventing the tuna from being exposed to the bottom sheet and protecting the tuna body surface with the bottom sheet.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a tuna culture device for embodying the technical idea of the present invention, and the present invention does not specify the culture device as follows.

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  The tuna farming apparatus shown in FIGS. 2 to 5 is installed on the ground and provided with a ring wall 2 provided with an annular ring pond 1 having a predetermined width, and each ring pond 1 provided between the ring walls 2. And a forced fluidizer 15 for forcibly flowing the pond water.

  In the aquaculture apparatus shown in FIGS. 2 to 5, the annular ring ponds 1 are concentrically arranged in a plurality of rows. The ring pond 1 has a groove shape having a predetermined width and height and opens upward. The aquaculture apparatus shown in the figure has three rows of ring ponds 1 provided concentrically. In the three rows of ring ponds 1, an intermediate ring pond 1 </ b> B is provided between the innermost ring pond 1 </ b> A and the outermost ring pond 1 </ b> C, and the width of each ring pond 1 gradually increases toward the outside. In the ring pond 1, for example, the innermost ring pond 1A has a width of 1.5 m, the intermediate ring pond 1B has a width of 2 m, and the outermost ring pond 1C has a width of 2.5 m. Moreover, the height of the ring wall 2 which comprises the ring pond 1 shall be 3.6 m, for example. However, the culture device of the present invention does not specify the width of the ring pond 1 and the height of the ring wall 2. The width and depth of the ring pond 1 are designed to optimum values in consideration of the type and size of the tuna to be cultivated or bred. For example, the width of the ring pond 1 can be 1 m to 5 m, and the height of the ring wall 2 can be 50 cm to 5 m. Furthermore, although the above culture device is provided with three rows of ring ponds 1, the culture device of the present invention can be provided with three or more rows or two rows of ring ponds.

  The aquaculture apparatus shown in the figure has a circular ring wall 2 fixed vertically on the ground, and ring walls 2 are provided on both sides of the ring pond 1. The aquaculture apparatus shown in FIGS. 4 and 5 has a soil concrete 23 placed on the ground, and a bottom plate 24 made of a plastic plate is fixed on the soil concrete 23. Furthermore, the ring pond 1 is provided on the bottom plate 24 by bonding or welding a circular plastic plate to be the ring wall 2 and fixing it vertically. The soil concrete 23 has a thickness of 20 cm, for example, and a 5 mm thick polyethylene plate is used as the plastic plate. However, the soil concrete and plastic plate can be made thicker and stronger, so the optimum value depends on the size of the ring pond. Further, in the aquaculture apparatus of FIGS. 4 and 5, the concrete 25 is fixed and reinforced on the outer side of the outermost outer ring wall 2A.

  A ring wall 2 between adjacent ring ponds 1 is provided with an opening 3 in part. The opening 3 is closed so that tuna does not pass through the water-permeable partition material 4 that can pass through the pond water. The water-permeable partition material 4 shown in FIG. 6 is a lattice 30 that connects a plurality of horizontal rods 31 apart from each other. The horizontal rod 31 of the lattice 30 is deformed in a direction along the ring wall 2 in a horizontal plane. The interval between the horizontal rods 31 constituting the lattice 30 is a gap that allows the tuna to pass through the pond water, for example, 1 cm to 5 cm. The water-permeable partition material 4 of the lattice 30 closes the opening 3 of the ring wall 2 so as to allow the pond water to pass therethrough and not pass the tuna. However, the aquaculture apparatus of the present invention does not specify the water-permeable partition material as a lattice. As the water-permeable partition material, all other materials that can pass through pond water but can be blocked so that tuna does not pass through, such as a net or a net, can be used.

  The water-permeable partition member 4 of the lattice 30 bends the horizontal rod 31 deformed in the direction along the ring wall 2 to the same curvature radius as the ring wall 2 connecting the water-permeable partition member 4 in the horizontal plane. ing. This aquaculture device can effectively prevent the tuna swimming along the ring pond 1 from coming into contact with the grid 30 by arranging the ring wall 2 and the grid 30 on one circumference. The horizontal rod 31 is a metal round pipe such as stainless steel.

  As shown in FIGS. 7 and 8, the grid 30 of the water-permeable partition member 4 connects the horizontal rod 31 with the upper and lower rods 32. The upper and lower rods 32 connect a plurality of positions in the middle of the horizontal rod 31 to keep the distance between the horizontal rods 31 constant. The upper and lower rods 32 pass through the horizontal rod 31 and are connected at regular intervals. The upper and lower rods 32 are inserted through spacer cylinders 33 that hold the horizontal rods 31 at regular intervals. The spacer cylinder 33 is sandwiched between the upper and lower horizontal rods 31 and fixed between the horizontal rods 31. The upper and lower rods 32 have a flange 34 at one end and are provided with a male screw 35 at the other end, and a nut 36 is screwed into the male screw 35 to fix the horizontal rod 31. Further, the lattice 30 of the water-permeable partition member 4 in the figure covers the surface of the spacer cylinder 33 with a rotating pipe 37. The rotary pipe 37 covers the surface of the spacer cylinder 33 so that it can rotate. Therefore, the rotary pipe 37 has an inner diameter larger than the outer diameter of the spacer cylinder 33 and a total length shorter than the spacer cylinder 33. The rotary pipe 37 is a metal pipe such as stainless steel.

  Further, the lattice 30 of the water-permeable partition member 4 is connected via the groove-shaped connecting member 38 by inserting both ends of the horizontal rod 31 into the groove of the groove-shaped connecting member 38. The groove-shaped connecting member 38 is also a groove-shaped steel made of metal such as stainless steel. The lattice 30 is fixed with a set screw 39 so as to penetrate the groove-shaped connecting member 38 and the horizontal rod 31. The set screw 39 penetrates the horizontal connecting rod 38 and the horizontal rod 31 so as to penetrate the horizontal rod 31 in the diameter direction, and fixes the horizontal rod 31 to the connecting groove 38. Although not shown, the horizontal rod 31 and the groove-shaped connecting member 38 can be connected with a rivet regardless of a set screw, or can be connected by welding.

  In the water-permeable partition member 4 of the lattice 30 described above, the horizontal rod 31, the rotary pipe 37, and the groove-shaped connecting member 38 are made of metal such as stainless steel. The water-permeable partition material 4 that is the metal lattice 30 has a feature that the whole can be strengthened. However, as for the water-permeable partition material of the lattice, the horizontal rod, the rotating pipe, and the groove-shaped connecting material can be made of plastic. The plastic lattice is made of plastic such as polyvinyl chloride or polyethylene. In this way, the water-permeable partition material made of plastic can be manufactured at low cost while lightening the whole.

  The water-permeable partition member 4 of the lattice 30 is connected to one side edge 3A of the opening 3 of the ring wall 2 so that one side of the lattice 30 can be tilted in a horizontal plane via the groove-shaped connecting member 38. As shown in the enlarged sectional view of FIG. 9, the lattice 30 is connected to the ring wall 2 so that it can be tilted via a groove-shaped connecting member 38 and a hinge 40 fixed to the inner surface of the opening 3 of the ring wall 2. ing. The water-permeable partition material 4 of the lattice 30 is connected to the other side edge 3B of the opening 3 so that the side edge opposite to the hinge 40 can be attached to the other side edge 3B. Further, the water-permeable partition member 4 shown in FIG. 6 is provided with a roller 41 at the lower end of the groove-shaped connecting member 38 that is the detachable portion 4A so that it can be smoothly tilted in the horizontal plane. The water-permeable partition material 4 can be smoothly tilted by rotating the roller 41 along the bottom surface of the ring pond 1.

  The water-permeable partition material 4 of the lattice 30 described above removes the attachment / detachment portion 4A and is connected to the inner ring wall 2 to transfer the tuna from the inner ring pond 1 to the outer ring pond 1. Although not shown in the drawings, the water-permeable partition material can transfer the outer tuna to the inner side by connecting the desorption part to the outer ring wall. The water-permeable partition member 4 shown in FIGS. 2 and 3 is wider than the ring pond 1 and is inclined with respect to the ring wall 2 in a state of being connected to the inner or outer ring wall 2. The water-permeable partition material 4 can smoothly transfer tuna to the adjacent ring pond 1.

  Further, the aquaculture apparatus of FIGS. 2 and 3 has a tuna intake pond 5 outside the ring pond 1. In the illustrated aquaculture apparatus, a curved wall 52 is provided outside the outer ring wall 2A of the ring pond 1 in parallel with the outer ring wall 2A, and a collection pond 5 is provided between the curved wall 52 and the outer ring wall 2A. ing. The take-up pond 5 is provided adjacent to the outermost outermost ring pond 1C and in parallel with the outermost ring pond 1C. The Torigami pond 5 is narrower than the ring pond 1. The width of the intake pond 5 is, for example, 50 cm or more and 1.5 m or less.

  Furthermore, the aquaculture apparatus is provided with an open / close guide 54 at the connecting portion between the intake pond 5 and the ring pond 1, and the intake pond 5 is connected to the outermost ring pond 1 </ b> C via the open / close guide 54. . This aquaculture device opens the open / close guide 54 and guides the tuna from the ring pond 1 to the upper pond 5. The outer ring wall 2 </ b> A is provided with an opening 3 at a connecting portion between the intake pond 5 and the outermost ring pond 1 </ b> C, and the opening 3 is closed with an opening / closing guide 54. In the aquaculture apparatus shown in the figure, both ends of the intake pond 5 are connected to the ring pond 1, and open / close guides 54 are provided at connecting portions at both ends of the intake pond 5. The intake pond 5 opens one open / close guide 54 to guide the tuna in the ring pond 1 to the upper pond 5, and opens the other open / close guide 54 to return the tuna in the intake pond 5 to the ring pond 1. Can do. However, the aquaculture device can also connect only one end of the intake pond to the ring pond.

  The opening / closing guide 54 shown in FIG. 2 is a lattice 30 having the same structure as the water-permeable partition member 4 shown in FIG. The open / close guide 54, which is the lattice 30, can reliably guide the tuna to the intake pond 5 as a structure having water permeability that does not allow tuna to pass through the pond water. However, the open / close guide does not necessarily need to be a lattice, and can use a net or a net to pass pond water, but can also be configured to prevent tuna from passing. In this way, the structure in which the opening / closing guide 54 has water permeability does not cause the water in the intake pond 5 to be absorbed, and the pond water is supplied from the intake pond 5 to the ring pond 1 and from the ring pond 1 to the intake pond 5. The pond water is ideally circulated in the intake pond 5 and the ring pond 1 by flowing. In particular, the opening / closing guide 54 having water permeability can be opened and closed easily and smoothly even when the pond water is circulated in the intake pond 5 and the ring pond 1 because the entire water-reducing guide 54 can be lightened and the resistance of the water can be reduced. However, the aquaculture apparatus of the present invention does not necessarily require the open / close guide to have a water-permeable structure that can pass through pond water. It is a member for connecting the outermost ring pond 1C to the upper pond 5 only when the open / close guide 54 guides the tuna to the upper pond 5, and it is necessary to pass the pond water in the normal time. Because there is no. Therefore, the open / close guide can be a non-permeable member.

  The open / close guide 54 shown in FIGS. 2 and 3 is connected so as to be movable from the outer guide wall 2A, which is the outer wall of the outermost ring pond 1C, to the inner wall, and the open / close guide 54 is connected to the inner side of the outermost ring pond 1C. The tuna in the outermost ring pond 1C can be moved to the upper pond 5 by being connected to the wall. The open / close guide 54 is connected to one side edge 3A of the opening 3 of the outer ring wall 2A so that it can tilt in a horizontal plane. The opening / closing guide 54 can be connected to the outer ring wall 2A so as to be tilted in the same manner as the structure shown in FIG. 9, that is, via a hinge fixed to the side edge 3A of the opening 3. Further, the open / close guide 54 is connected to the other side edge 3B of the opening 3 so that the opposite side edge can be attached to and detached from the other side edge 3B. The open / close guide 54 shown in FIGS. 2 and 3 is wider than the outermost ring pond 1 </ b> C and is inclined with respect to the ring wall 2 in a state of being connected to the inner wall. The open / close guide 54 can smoothly transfer the tuna to the intake pond 5.

  In FIG. 3, the open / close guide 54 connected to the right end of the intake pond 5 moves to the position indicated by the chain line (the direction indicated by the arrow A in FIG. 2) to remove the tuna from the outermost ring pond 1C. Transfer to upper pond 5 The open / close guide 54 is connected to the position of the solid line, and the tuna of the outermost ring pond 1C is not transferred to the upper pond 5 but is allowed to swim to the outermost ring pond 1C. Further, the open / close guide 54 connected to the upper left end of the intake pond 5 in FIG. 3 moves to the position indicated by the chain line in the figure (the direction indicated by the arrow B in FIG. 2) and moves to the intake pond 5. The tuna can be returned to the outermost ring pond 1C. An aquaculture device that connects the take-up pond 5 to the outermost ring pond 1C and can transfer the tuna from the outermost ring pond 1C to the upper pond 5 with the opening / closing guide 54 can be easily taken out into the take-up pond 5 it can. Further, the tuna that has moved to the take-up pond 5 and is not taken out can be easily moved from the take-up pond 5 to the outermost ring pond 1C by operating the open / close guide 54. For this reason, tuna can be efficiently taken out from the aquaculture device while selecting the tuna to be taken out.

  10 to 12 show a lifting tool 10 that can easily remove the tuna from the collecting pond 5 without damage. The lifting tool 10 shown in these drawings includes a loading portion 10A that guides the tuna in the collecting pond 5 and a pulling portion 10B that is connected to both ends of the loading portion 10A. As shown in FIG. 10, the pick-up tool 10 can be tucked into the mounting portion 10 </ b> A and pulled up by the pulling portion 10 </ b> B, and the tuna can be easily taken out from the upper pond 5 without being damaged. In the illustrated take-up tool 10, two rods 14 are connected to both sides of a sheet material 11, the sheet material 11 serves as a loading portion 10 </ b> A, and the rod 14 serves as a pulling portion 10 </ b> B. The sheet material 11 which is the mounting portion 10 </ b> A is obtained by connecting water-permeable nets 13 to both sides of a non-water-permeable bottom sheet 12. The water flow net 13 is a sheet formed by providing a large number of through holes in a net material or a sheet so that water can flow.

The collecting tool 10 takes out the tuna from the collecting pond 5 as follows.
(1) In FIG. 3, the opening / closing guide 54 connected to the right end of the intake pond 5 is set as a solid line position, and the interval between the two rods 14 is taken with no tuna inserted in the intake pond 5. And spread the sheet material 11 into the upper pond 5.
(2) After that, the open / close guide 54 at the right end of the intake pond 5 in FIG. 3 is moved to the position indicated by the chain line (the direction indicated by the arrow A in FIG. 2), and the tuna in the outermost ring pond 1C is taken up. Move to. At this time, the upper left open / close guide 54 of the intake pond 5 closes the upper left end of the intake pond 5 as a position indicated by a solid line so that the tuna of the intake pond 5 does not return to the outermost ring pond 1C.
(3) When the two rods 14 serving as the pulling portion 10B are lifted, the tuna on the sheet material 11 serving as the placing portion 10A is taken up from the take-up pond 5. At this time, as shown in FIG. 10, the tuna does not run upright on the bottom sheet 12, and water is drained from the water net 13 of the sheet material 11. Therefore, in a state where the tuna is on the bottom sheet 12, the tuna can be drained and taken out, and the tuna can be taken out efficiently and without being damaged.

  The pond water of the ring pond 1 is caused to flow by the forced fluidizer 15 so as to rotate in the same direction. Further, the forced fluidizer 15 also causes the pond water of the intake pond 5 disposed adjacent to the outside of the ring pond 1 to flow in the same direction as the ring pond 1. That is, the forced fluidizer 15 in the figure causes the pond water of both the intake pond 5 and the ring pond 1 to flow in the same direction. In this aquaculture device, tuna swimming in the outermost ring pond 1C is taken from the outermost ring pond 1C while opening and closing the guide 54 and connecting the intake pond 5 to the outermost ring pond 1C. Guide to the pond 5 more smoothly. Moreover, since the tuna guided to the intake pond 5 also swims against the flow in the intake pond 5, the tuna guided to the intake pond 5 can be easily supplemented and taken up. This is because even if the tuna speed relative to the pond water is high, the relative speed relative to the intake pond 5 can be reduced.

  The forced fluidizer 15 shown in FIGS. 2 to 4 includes a pump 16 and a water supply pipe 17 that fixes a nozzle 18 that injects pond water pressurized and discharged by the pump 16. The aquaculture apparatus of FIGS. 2 to 4 has a water supply pipe 17 disposed at an opposing position. A pump 16 for supplying pond water to a water supply pipe 17 arranged on the left side in the figure is a submersible pump, sucks pond water, pressurizes it, and supplies it to the water supply pipe 17. 3 and 4, a pump 16 that supplies pond water to a water supply pipe 17 disposed on the right side sucks water purified in a purification tank 28 described later, pressurizes the water, and supplies the pressurized water to the water supply pipe 17. The water supply pipe 17 is disposed away from the liquid level of the ring pond 1. The water supply pipe 17 does not collide with tuna swimming in the ring pond 1. The water supply pipe 17 fixes a plurality of nozzles 18 at a predetermined interval. The nozzle 18 injects pond water supplied from the pump 16 onto the water surface of the ring pond 1 to accelerate the pond water in the ring pond 1 and rotate it along the ring pond 1. The nozzle 18 inclines in the direction in which the pond water of the ring pond 1 flows and injects pond water onto the water surface of the ring pond 1. Both water supply pipes 17 arranged at opposing positions of the aquaculture device are pond water sprayed from the nozzle 18 and rotate the pond water in the same direction. The water supply pipe 17 is disposed so as to be orthogonal to the ring pond 1. The forced fluidizer 15 having this structure can supply oxygen to the pond water while accelerating the pond water of the ring pond 1 to flow in a certain direction. However, the culture device of the present invention does not specify the forced fluidizer 15 as the above structure. This is because the forced fluidizer can have any structure capable of accelerating and flowing the pond water of the ring pond in a certain direction.

  The pond water that is caused to rotate along the ring pond 1 by the forced fluidizer 15 accumulates foreign matter inside the innermost ring pond 1A. In order to discharge foreign matter collected here from the ring pond 1, a drain opening 6 through which the pond water flows is provided inside the bottom of the innermost ring pond 1 A, and a drain pipe 7 is connected to the drain opening 6. ing. The aquaculture apparatus in FIG. 3 is provided with a drainage ring 8 along the inside of the bottom of the innermost ring pond 1 </ b> A, and the drainage ring 8 is provided with a drainage opening 6. FIG. 13 is a perspective view showing the drainage ring 8. The drainage ring 8 in this figure is provided with a drainage opening 6 as a groove shape that opens upward. Furthermore, the drainage ring 8 in this figure is divided into a plurality of ring units 8A, and the divided ring units 8A are connected by a connector 9. The drainage ring 8 having this structure can be easily constructed by molding a ring unit 8A having the same shape from plastic and connecting it with a connector 9. The ring unit 8A has a shape that curves to a radius of curvature along the inside of the innermost ring pond 1A, and is formed into a groove shape that opens upward. Further, the ring unit 8A can be easily connected by inserting the connecting portion 8a into the cylindrical connecting device 9 and connecting the connecting portion 8a inserted into the connecting device 9 into a cylindrical shape. In particular, the ring unit 8A and the connector 9 can be easily connected by molding them with plastic and bonding them with an adhesive. The drainage ring 8 of this structure uses cheese that connects three pipes in a T-shape for the connector 9, and connects the ring unit 8 </ b> A and the drain pipe 7 to the connector 9, The drain pipe 7 can be easily connected.

  The structure having the drainage opening 6 on the upper side by the groove-shaped drainage ring 8 can quickly discharge foreign matters collected inside the innermost ring pond 1A. However, the aquaculture apparatus of the present invention does not specify the drainage opening provided in the innermost ring pond in this structure. For example, a structure in which a plurality of drain openings are provided along the inner periphery of the bottom of the innermost ring pond, and a drain pipe is connected to each drain opening, and the drain ring can be a pipe having a large number of through holes. Further, the bottom surface of the innermost ring pond can be formed into a grooved shape along the inner periphery, and a drain opening can be provided in the groove to connect the drain pipe.

  The structure in which the drainage opening 6 is largely opened can quickly discharge the foreign matter collected inside the innermost ring pond 1A. However, if the tuna cultivated is small relative to the drain opening, the tuna may enter the drain opening or be damaged by the drain opening. Therefore, the aquaculture device can prevent the tuna cultivated from entering the drain opening 6 by arranging the net 19 in the drain opening 6 as shown by the chain line in the partially enlarged sectional view of FIG. it can. As the mesh member 19, a mesh member that can pass through the collected foreign matter but cannot pass through the tuna cultivated is used. In addition, the structure in which the drainage ring is a pipe having a large number of through holes can prevent the ingress of tuna by setting the size of the through holes opened in the pipe to a size that allows passage of foreign substances but not of tuna.

  As shown in FIG. 5, the drain pipe 7 is embedded in the bottom of the ring pond 1 and pulled out to the outside, and an upright portion 7 </ b> A is provided in the external leading portion. The upright part 7A drains pond water from the upper end opening 7a to control the water surface level of the pond water. Since the water level of the pond water is substantially equal to the level of the upper end opening 7a of the upright portion 7A, the water surface level of the ring pond 1 can be controlled by adjusting the vertical position of the upper end opening 7a of the upright portion 7A.

  The raised portion 7A shown in the figure is provided with an adjusting portion 29 that controls the water level of the pond water so that the height of the upper end opening 7a can be adjusted. The adjustment portion 29 shown in the figure includes a connecting cylinder 29A connected to the upper end of the upright portion 7A, and an adjusting cylinder 29B connected to the upper side of the connecting cylinder 29A so as to be detachable. The adjusting portion 29 having this structure can adjust the height of the upper end opening 7a by the length of the adjusting tube 29B connected to the connecting tube 29A. In other words, the adjusting portion 29 can shorten the length of the adjusting tube 29B connected to the connecting tube 29A, lower the upper end opening 7a, that is, lower the water level of the pond water, and connect to the connecting tube 29A. The length of the adjustment cylinder 29B can be increased to increase the upper end opening 7a, that is, to increase the water level of the pond water. The adjustment part 29 of this structure is a very simple structure, and can freely adjust the water surface level of pond water. However, although the upright portion is not shown, the height of the upper end opening can be freely adjusted as a double cylinder structure that can be expanded and contracted.

  The pond water drained from the drain pipe 7 is stored in the drain tank 26. The upper end opening 7 a of the drain pipe 7 is inside the drain tank 26, and pond water drained from here is stored in the drain tank 26. The pond water flowing from the drain pipe 7 into the drain tank 26 is supplied to the septic tank 28 by the pump 27. The septic tank 28 physically filters the pond water supplied from the pump 27 and further biologically filters the pond water into clear pond water. The pond water clarified in the septic tank 28 is further sucked into the pump 16 and sent to the water supply pipe 17. The water supply pipe 17 jets the supplied pond water vigorously from the nozzle 18 and forces it to flow along the ring pond 1. The aquaculture apparatus shown in FIG. 1 is a drainage opening 6 → drainage pipe 7 → drainage tank 26 → pump 27 → purification tank 28 → pump 16 → supply pipe provided inside the bottom of the innermost ring pond 1A. 17 → Circulate the ring pond 1 and keep it clear. Moreover, the pond water to circulate is injected from the nozzle 18, and the pond water is forced to flow. However, the tuna culturing apparatus of the present invention can be structured so as not to provide a septic tank by draining the pond water drained from the drain pipe to the outside without circulating it. It is also possible to circulate to the ring pond without spraying from the nozzle.

  2 to 4, the crossing member 20 is arranged above the ring pond 1 so as to cross each ring pond 1, that is, to bridge the ring pond 1. The crossing material 20 in the figure is a working step board 21 and a water supply pipe 17 of a forced fluidizer 15 that injects water into the ring pond 1 to accelerate and flow the pond water. Although the crossing material 20 is not specified to these members, if there is the crossing material 20 regardless of the application, the tuna in the ring pond 1 is damaged. This is because tuna swimming against the flow of the ring pond 1 jumps from the surface of the water and collides. The crossing material 20 kills most tuna colliding there.

  In order to eliminate the above adverse effects, as shown by a chain line in FIG. 2 and FIG. 3, a strip-shaped soft material 22 is arranged extending in the downstream direction from the lower surface of the crossing material 20. The strip-shaped soft material 22 shown in the figure is a flexible sheet 22A that is not damaged even when tuna collides. As shown in FIG. 14, the flexible sheet 22 </ b> A has one end fixed to the lower surface on the upstream side of the crossing material 20, and the other end extended in the downstream direction of the crossing material 20 so as to float on the water surface. Yes. As shown in FIG. 14, the flexible sheet 22 </ b> A is floated on the water surface with the downstream end portion being caused to flow in the direction of the pond water flow. Further, the flexible sheet 22A disposed on the cross member 20 that is the water supply pipe 17 is accelerated so that the pond water sprayed from the nozzle 18 is supplied to the upper surface and flows through the pond water in a certain direction. Rotate to Since the tuna swims against the flow of the ring pond 1, the tuna that jumps up to the water surface tries to jump from the right side to the left side in FIG. 14. At this time, the tuna which is about to jump to the water surface below the flexible sheet 22A collides with the lower surface of the flexible sheet 22A and falls into the water as shown by the arrow A in the figure. Collision with the material 20 is prevented. Further, on the downstream side of the flexible sheet 22A, the tuna that jumps along the water surface falls to the upper surface of the flexible sheet 22A as shown by the arrow B in the figure. This tuna is shown in FIG. In addition, the water passes through the slit 22a provided in the flexible sheet 22A and returns to the water, or the water is ejected from the nozzle 18 of the forced fluidizer 15 in the downstream direction and returned to the water. For this reason, tuna flying against the flow is prevented from colliding with the cross member 20 and being damaged.

  The flexible sheet 22 </ b> A of FIG. 15 has a curved shape along the inner surface of the ring wall 2 on both sides so that it can float on the ring pond 1 along the flow of pond water. Furthermore, in the illustrated flexible sheet 22A, a plurality of rows of slits 22a are opened from the downstream end to the middle in order to return the tuna riding on the upper surface to the water. In the state where the tuna rides on the upper surface, the slit 22a expands as shown by a chain line in the figure, and passes the tuna from the upper surface to the lower surface of the flexible sheet 22A to return it to the water. However, although not shown, this slit can be extended to the downstream edge and opened to make the entire shape of the flexible sheet into a good shape. The flexible sheet 22A is longer than the distance by which the tuna jumped forward on the water surface so as to prevent the tuna jumping from the water surface from colliding with the tolerance member 20, for example, 2 to 5 times the body length of the tuna. As for the length, the tip is suspended along the flow of pond water.

It is a top view of the tuna culture apparatus which this inventor developed previously. 1 is a perspective view of a tuna culturing apparatus according to an embodiment of the present invention. FIG. 3 is a schematic plan view of the tuna culture apparatus shown in FIG. 2. It is the sectional view on the AA line of the tuna culture apparatus shown in FIG. FIG. 3 is a cross-sectional view of the tuna culturing apparatus shown in FIG. It is a perspective view which shows the water-permeable division material of the tuna culture pond shown in FIG. It is a disassembled perspective view of the water-permeable division material shown in FIG. It is a vertical sectional view of the water-permeable partition material shown in FIG. It is an expanded sectional view which shows the connection structure of the opening part of a ring wall, and a water-permeable division material. It is a perspective view which shows an example of a pick-up tool. It is a side view of the lifting tool shown in FIG. FIG. 7 is a development view of the lifting tool shown in FIG. 6. It is a perspective view which shows an example of a drainage ring. It is sectional drawing which shows the soft material of the aquaculture apparatus shown in FIG. It is a top view of the soft material shown in FIG.

Explanation of symbols

1 ... Ring pond 1A ... Innermost ring pond
1B ... Intermediate Ring Pond
1C ... Outermost ring pond 2 ... Ring wall 2A ... Outer ring wall 3 ... Opening 3A ... Side edge
3B ... Side edge 4 ... Water-permeable partition material 4A ... Desorption part 5 ... Take pond 6 ... Drain opening 7 ... Drain pipe 7A ... Upper part
7a ... Opening 8 ... Drain ring 8A ... Ring unit
8a ... connecting part 9 ... connecting tool 10 ... lifting tool 10A ... mounting part
DESCRIPTION OF SYMBOLS 10B ... Pull-up part 11 ... Sheet material 12 ... Bottom sheet 13 ... Water flow net 14 ... Rod 15 ... Forced fluidizer 16 ... Pump 17 ... Water supply pipe 18 ... Nozzle 19 ... Net material 20 ... Crossing material 21 ... Step board 22 ... Soft Material 22A: Flexible sheet
22a ... slit 23 ... concrete concrete 24 ... bottom plate 25 ... concrete 26 ... drainage tank 27 ... pump 28 ... septic tank 29 ... adjustment part 29A ... connecting cylinder
29B ... Adjusting cylinder 30 ... Grid 31 ... Horizontal rod 32 ... Vertical rod 33 ... Spacer cylinder 34 ...… 35 ... Male screw 36 ... Nut 37 ... Rotating pipe 38 ... Groove-shaped connecting member 39 ... Set screw 40 ... Hinge 41 ... Roller 52 ... curved wall 54 ... opening / closing guide 54A ... desorption part 91 ... ring pond

Claims (11)

A ring wall (2) provided with an annular ring pond (1) having a predetermined width, and a forced fluidizer for forcibly flowing the pond water of each ring pond (1) provided between the ring walls (2) (15) a tuna aquaculture device comprising:
The tuna intake pond (5) is connected to the outside of the ring pond (1), and the tuna is taken from the ring pond (1) to the upper pond (5) and taken out from the intake pond (5). A tuna farming device.   The intake pond (5) is arranged in parallel adjacent to the ring pond (1), and the forced fluidizer (15) directs the pond water of both the intake pond (5) and the ring pond (1) in the same direction. The tuna culture apparatus according to claim 1, wherein the tuna culture apparatus is fluidized.   The tuna culturing device according to claim 1, wherein the intake pond (5) is narrower than the ring pond (1).   The tuna culture apparatus according to claim 3, wherein the width of the intake pond (5) is 50 cm or more and 1.5 m or less.   A curved wall (52) is provided outside the outer ring wall (2A) of the ring pond (1) in parallel with the outer ring wall (2A), and between the curved wall (52) and the outer ring wall (2A). The tuna culturing apparatus according to claim 1, wherein the take-up pond (5) is provided in the tuna pond.   An opening / closing guide (54) is provided at the connecting portion of the intake pond (5) with the ring pond (1), and the open / close guide (54) is opened to take up the tuna of the ring pond (1) ( The tuna culturing device according to claim 1, wherein the tuna culturing device is guided to 5).   Both ends of the intake pond (5) are connected to the ring pond (1), and an open / close guide (54) is provided at the connecting portion at both ends of the intake pond (5), and one open / close guide (54) To open the ring pond (1) to the upper pond (5) and open the other open / close guide (54) to return the tuna from the upper pond (5) to the ring pond (1). The tuna culture apparatus according to claim 1.   The tuna culturing apparatus according to claim 6 or 7, wherein the open / close guide (54) has a water permeability that allows the tuna to pass through the pond water. It is provided with a take-up tool (10) for taking out tuna from the take-up pond (5), and this take-up tool (10) is placed in the take-up pond (5) and a loading part (10A) for guiding the tuna inside. A pulling portion (10B) connected to both ends of the mounting portion (10A),
A tuna culturing device in which tuna is put in the loading part (10A) of the lifting tool (10) and pulled up by the pulling part (10B) to take out the tuna from the upper pond (5).   The lifting tool (10) connects two rods (14) on both sides of the sheet material (11), the sheet material (11) is placed on the loading part (10A), and the rod (14) is pulled up (10B). A tuna culture device according to claim 9.   The tuna culturing device according to claim 10, wherein the sheet material (11) of the lifting tool (10) has a water-permeable net (13) connected to both sides of a non-water-permeable bottom sheet (12). .

Images