Marine life capturing tool

Abstract

To provide a marine life capturing tool capable of effectively preventing marine life entering inside from escaping.SOLUTION: A capturing tool 1 includes a body 2 formed with an entrance port 2a that marine life can enter on a lateral side; and a plurality of slender elastic members 4a and 4b provided in the body 2 so as to overlap with the entrance port 2a of the body 2, and is provided with escape prevention means 4 that permits entrance of marine life inside the body 2 from the entrance port 2a, and prevents the marine life that has entered inside the body 2 from escaping from the entrance port 2a.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a marine organism capturing device. [Background technology]

[0002] In recent years, attention has been focused on blue carbon, a type of carbon incorporated into marine ecosystems as a measure against global warming. Seaweed that spreads across the ocean floor plays a major role in the production of blue carbon, but there are many areas where seaweed does not settle easily, which is said to be due to coastal barrenness caused by sea urchins eating all of the seaweed. Currently, sea urchins are exterminated by diving, but this requires a great deal of cost and effort, so there is a need for an efficient method of exterminating sea urchins. One possible solution is to install a capture device on the seabed to capture sea urchins. For example, Patent Document 1 discloses a capture device that consists of two cages arranged one above the other, with a drop opening between the two cages that allows marine organisms to enter from all directions. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-60887 Summary of the Invention [Problem to be solved by the invention]

[0004] The trapping device of Patent Document 1 has a problem in that the drop hole is simply an opening, so that sea urchins that enter inside can easily climb up the wall and escape to the outside after eating the bait. This problem is not limited to the trapping of sea urchins, but also exists when trapping other marine organisms.

[0005] The present invention has been made based on the above background, and aims to provide a marine life capturing device that can effectively prevent marine life that has entered inside from escaping. [Means for solving the problem]

[0006] In order to achieve the above object, the marine organism capturing tool according to the present invention comprises: a main body having an entrance formed on a side portion thereof through which marine organisms can enter; an escape prevention means comprising a plurality of elongated elastic members provided on the main body so as to overlap the entrance of the main body, which allows marine organisms to enter the main body through the entrance and prevents marine organisms that have entered the main body from escaping through the entrance; Equipped with. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a marine life capturing device that can effectively prevent marine life that has entered inside from escaping. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a simplified configuration of a marine organism capturing device according to an embodiment of the present invention. [Figure 2] 1 is a front view showing the configuration of a marine organism capturing tool according to an embodiment of the present invention. [Figure 3] 1 is a plan view showing the configuration of a marine organism capturing tool according to an embodiment of the present invention. [Figure 4] 1 is a bottom view showing the configuration of a marine organism capturing tool according to an embodiment of the present invention. FIG. [Figure 5] FIG. 1(a) is an enlarged view showing the configuration of an escape prevention means in a marine organism capturing device according to an embodiment of the present invention, and FIG. 1(b) is a cross-sectional view of the marine organism capturing device of (a) taken along line AA. [Figure 6] (a) is a cross-sectional view illustrating an elongated elastic member supported at the left end of the entrance of the marine life capture device of Figure 5(b), and (b) is a cross-sectional view of the marine life capture device of (a) cut along line BB. [Figure 7](a) is a diagram showing a marine organism entering a marine organism capture device according to an embodiment of the present invention, and (b) is a diagram showing a marine organism attempting to escape from the marine organism capture device of (a). [Figure 8] FIG. 10 is a perspective view showing the configuration of a marine organism capturing device according to a modified example of the present invention. [Figure 9] FIG. 1 is a photograph of the exterior of a prototype in an example. [Figure 10] FIG. 10 is a photograph of the appearance of a sea urchin placed in an aquarium together with the prototype in the example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a marine organism capturing device according to an embodiment of the present invention will be described in detail with reference to the drawings. In each drawing, the same or equivalent parts are designated by the same reference numerals.

[0010] The marine life capturing device according to the embodiment is a device that is installed on the seabed, captures marine life that moves on the seabed or in the sea, and prevents the marine life from escaping. The marine life to be captured may be any marine life, but is particularly an organism that moves near the seabed, such as echinoderms, including sea urchins, starfish, and sea cucumbers. The configuration of the marine life capturing device according to the embodiment will be described below with reference to Figs. 1 to 6.

[0011] As shown in Figure 1, the capture device 1 comprises a main body 2 having an entrance 2a through which marine organisms enter and an insertion opening through which a user inserts bait, and through which seawater flows in and out of the internal space, a lid 3 detachably attached to the main body 2 so as to cover the insertion opening, and an escape prevention means 4 attached to the main body 2 so as to cover the entrance 2a, which allows marine organisms to enter the interior and prevents marine organisms from escaping once inside. Note that Figure 1 shows a simplified configuration of the main body 2 for ease of understanding.

[0012] 2, the main body 2 is formed in a cylindrical shape and forms a space for trapping marine life inside. The main body 2 includes annular members 21, 22 arranged facing each other vertically, a plurality of plate-like members 23 extending in the vertical direction and arranged at intervals in the circumferential direction to connect the upper and lower annular members 21, 22 and form part of the outer surface of the main body 2, a plate-like member 24 arranged between the annular members 21, 22, extending in the circumferential direction so as to intersect with each of the plate-like members 23 and connecting each of the plate-like members 23, and four supports 25 extending in the vertical direction inside the plate-like members 23, 24 to support the annular members 21, 22, respectively.

[0013] The annular members 21, 22 and the plate-like members 23, 24 form a frame that maintains the shape of the main body 2. The annular members 21, 22 and the plate-like members 23, 24 are integrally formed using, for example, rivets. A rectangular opening 2b is formed between the annular members 21, 22 and the plate-like members 23, 24. A side net 26 is attached to the main body 2 around the opening 2b.

[0014] The side net 26 is a net that allows seawater and air to pass through while preventing marine organisms from passing through. The side net 26 is formed of a net with mesh that prevents marine organisms from passing through, such as a trical net. A trical net is a net with rectangular mesh (square mesh net) and is manufactured, for example, by continuous extrusion molding using plastic as a raw material. The side net 26 may be fixed around the opening 2b using, for example, rivets.

[0015] The side net 26 may be a cylindrical net attached to a frame made up of the ring-shaped members 21, 22 and the plate-shaped members 23, 24, or a curved rectangular net attached one by one around each opening 2b. The side net 26 is provided with an entrance 2a for the main body 2, and escape prevention means 4 is fixed around the entrance 2a.

[0016] The entrance 2a is formed in a rectangular shape and is set to be longer in the circumferential direction of the main body 2 than in the vertical direction. The circumferential length of the entrance 2a is preferably as long as possible within a range that maintains strength so that marine organisms climbing up from below can be captured at any position in the circumferential direction of the main body 2. Furthermore, the vertical length of the entrance 2a is preferably such that marine organisms moving up from below, such as walking marine organisms like sea urchins, cannot straddle the entrance 2a and move upward. The vertical length of the entrance 2a is, for example, within a range of 80 mm to 100 mm, and is 90 mm as an example. The circumferential direction of the entrance 2a is an example of the left-right direction perpendicular to the up-down direction of the entrance 2a.

[0017] As shown in Figure 3, an annular guide member 21a with which the lid 3 engages is provided on the top surface of the annular member 21. An opening on the inside of the guide member 21a is an inlet for introducing bait into the main body 2. Four pedestals 21b are provided on the top surface of the annular member 21 at positions corresponding to the four support posts 25. Coaxial through-holes are formed in the pedestals 21b and the main body of the annular member 21 below them. Identical support posts 25 are inserted into these through-holes, and in this state, the support posts 25 support the main body of the annular member 21 and the pedestals 21b.

[0018] A male screw is cut on the upper end of support 25, and protrudes upward from base 21b. The male screw of support 25 is inserted into a through hole of stopper 21c, and a nut 21d is attached from above. Stopper 21c is a member that holds lid 3 from above, and is supported rotatably around support 25. When lid 3 is attached to annular member 21, stopper 21c is brought into contact with lid 3 from above, and nut 21d is tightened onto the male screw from above stopper 21c, lid 3 is fixed to annular member 21.

[0019] The lid 3 comprises a ring-shaped main body 31, a disk net 32 ​​provided inside the main body 31, and a cylindrical net 33 supported on the bottom surface of the disk net 32 ​​and engaging with the tip of the upwardly extending bait storage tube 5. The disk net 32 ​​and the cylindrical net 33 are both formed from the same or equivalent material as the side net 26 and are welded to each other.

[0020] 4, an annular guide member 22a that protrudes downward is provided on the annular member 22. The annular guide member 22a is provided with a disk net 27 provided at its inner opening, and a cylindrical net 28 that is supported on the bottom surface of the disk net 27 and extends upward. The disk net 27 and the cylindrical net 28 are both formed from the same or equivalent material as the side net 26, and are welded to each other.

[0021] Returning to Figure 2, a cylindrical bait-containing cylinder 5 is detachably attached to the cylindrical net 28. The bait-containing cylinder 5 extends vertically toward the annular member 21 while attached to the cylindrical net 28, and is also attached to the cylindrical net 33 of the lid 3 so that it sandwiches and supports the bait-containing cylinder 5 from above and below together with the cylindrical net 28. The cylindrical net 28 of the main body 2 and the cylindrical net 33 of the lid 3, together with the bait-containing cylinder 5, form a space for containing bait that attracts marine organisms.

[0022] The bait storage tube 5 contains bait that attracts the target marine organisms, for example, kelp if the target is sea urchins. The bait storage tube 5 has an opening large enough to allow at least the odor components of the bait to escape to the outside, and if the target is sea urchins, an opening large enough to allow the tentacles of the sea urchins to enter but not the sea urchins themselves. The bait storage tube 5 may be made of, for example, the same or an equivalent material as the side net 26. This prevents the bait from being consumed by marine organisms that enter first, compared to when bait is directly dispersed inside the main body 2.

[0023] Returning to Fig. 1, the escape prevention means 4 is a means for allowing marine organisms to enter the inside of the main body 2 and preventing marine organisms that have entered inside from escaping. The escape prevention means 4 includes a plurality of elongated elastic members 4a supported above the entrance 2a and extending downward and inward within the main body 2, and a plurality of elongated elastic members 4b supported below the entrance 2a and extending upward and inward within the main body 2. The elongated elastic members 4a and 4b are examples of first and second elongated elastic members, respectively.

[0024] Each of the elongated elastic members 4a, 4b has the same or equivalent configuration and deforms to expand in the vertical direction of the main body 2, allowing marine organisms to enter the main body 2. The pair of elongated elastic members 4a, 4b also forms a recess in the entrance 2a to receive marine organisms, and walking marine organisms such as sea urchins and starfish that have climbed up from the seabed are guided into the recess. Since many marine organisms prefer to hide in the shadows, the presence of such a recess can also attract marine organisms to the entrance 2a.

[0025] As shown in FIG. 5, the elongated elastic members 4a, 4b are alternately arranged in the circumferential direction (left-right direction) of the entrance 2a, and are spaced at equal intervals around the entrance 2a. The elongated elastic members 4a, 4b are each a thin, plate-like member that is more easily deformed in the thickness direction than in the width direction. The elongated elastic members 4a, 4b are, for example, rectangular in cross section and formed so that their width is greater than their thickness. They are arranged at the upper and lower ends of the entrance 2a so that their width direction faces the circumferential direction of the entrance 2a. The elongated elastic members 4a, 4b have a width in the range of, for example, 4 mm to 5 mm, and a thickness in the range of, for example, 0.5 mm to 1 mm. The elongated elastic members 4a, 4b are, for example, plastic cable ties. The bases of the cable ties are fastened to the wires that form the mesh of the side net 26.

[0026] The length of each of the elongated elastic members 4a, 4b is preferably set so that the tip thereof is located below the lower end of the entrance 2a and above the upper end of the entrance 2a. The length of the elongated elastic members 4a, 4b is, for example, within a range of 150 to 250 mm. Furthermore, the tip of each of the elongated elastic members 4a, 4b is preferably in contact with the circumferential surface of the bait-containing cylinder 5. When a walking marine organism such as a sea urchin enters through the entrance 2a of the main body 2, if the tip of the elongated elastic members 4a, 4b is not in contact with anything, the organism may turn back toward the base end. However, if the tip of the elongated elastic members 4a, 4b is in contact with the circumferential surface of the bait-containing cylinder 5, the organism will move onto the circumferential surface of the bait-containing cylinder 5.

[0027] The elongated elastic members 4a, 4b are inclined obliquely upward and downward, respectively, with respect to the side net 26, and are arranged so as to intersect with each other. It is preferable that the elongated elastic members 4a, 4b intersect in the middle region in their respective longitudinal directions. It is preferable that the elongated elastic members 4a, 4b are both inclined at an angle of 40° to 45° with respect to the cross section of the main body 2, and that the angle formed between adjacent elongated elastic members 4a, 4b is within the range of 80° to 90°.

[0028] In the escape prevention means 4, the elongated elastic members 4a, 4b are arranged so that their widths are aligned on the same plane. This means that even if a marine organism deforms the elongated elastic members 4a, 4b in the thickness direction, they are less likely to deform in the width direction. Furthermore, because the elongated elastic members 4a, 4b cross each other, even if the elongated elastic members 4a, 4b attempt to deform in the width direction, this deformation is suppressed as long as adjacent elongated elastic members 4a, 4b are engaged with each other. This prevents large gaps from forming in the left-right direction between the elongated elastic members 4a, 4b when a marine organism attempts to escape.

[0029] 6, the escape prevention means 4 further includes a plurality of elongated elastic members 4c that are supported at the left and right ends of the entrance 2a, extend inward within the main body 2, and cover the gap between the entrance 2a and the elongated elastic members 4a, 4b. The set of the plurality of elongated elastic members 4c is an example of a cover means that covers the gap between the entrance 2a and the elongated elastic members 4a, 4b.

[0030] The elongated elastic members 4c are arranged at equal intervals in the vertical direction of the main body 2 at the left and right ends of the entrance 2a, as shown in Fig. 6(a), and are tilted so that their tips approach each other, as shown in Fig. 6(b). Fig. 6(b) is a cross-sectional view of the capture device 1 in Fig. 6(a) taken along line BB. The elongated elastic members 4c have the same or similar structure as the elongated elastic members 4a and 4b, for example, plastic cable ties. Their bases are fastened and attached to the wires that form the mesh of the side net 26.

[0031] To explain the role of the elongated elastic member 4c in more detail, the elongated elastic members 4a, 4b are arranged to form a recess inside the entrance 2a, so that at the left and right ends of the entrance 2a, when observed from the left and right directions of the entrance 2a, as shown in Figure 6(a), a triangular gap G exists between the entrance 2a and the elongated elastic members 4a, 4b. The elongated elastic member 4c is arranged to cover the triangular gap G, so that it can prevent marine organisms from escaping through the triangular gap G.

[0032] Each elongated elastic member 4c is arranged so that its width direction faces the vertical direction of the main body 2. Therefore, when a marine organism attempts to enter the entrance 2a, the elongated elastic members 4c bend in the thickness direction so as to collapse in the radial direction of the main body 2, allowing the marine organism to easily enter inside the entrance 2a. On the other hand, when a marine organism attempts to escape from the entrance 2a, the elongated elastic members 4c bend in the thickness direction so as to collapse in the circumferential direction of the main body 2, preventing the marine organism from escaping through the entrance 2a. The above is the configuration of the capture device 1.

[0033] Next, a flow of a method for capturing marine organisms using the capturing device 1 according to the embodiment will be described. The following describes an example in which sea urchins are captured as marine organisms to be captured.

[0034] First, the lid 3 is removed from the main body 2, pieces of kelp are placed inside the bait storage tube 5 as bait, and the lid 3 is then closed again. At this time, the lid 3 is fixed to the main body 2 using the stopper 21c and the nut 21d. Next, the capture device 1 is submerged in the sea and installed on the seabed. The capture device 1 is installed in an area where the target sea urchins live. When the capture device 1 is submerged in the sea, seawater flows in through the side net 26 and the disk net 27 of the capture device 1, and air inside the main body 2 escapes upward through the disk net 32 ​​of the lid 3, making it easy to submerge the capture device 1 in the sea.

[0035] Shortly after the trapping device 1 is placed on the seabed, sea urchins, sensing the odor components of kelp, approach the trapping device 1 and attempt to enter the trapping device 1. Because sea urchins prefer dimly lit, dark places and have a tendency to enter recesses, they are encouraged to move into the recess formed by the escape prevention means 4 provided at the entrance 2a. As shown in Figure 7(a) , each of the elongated elastic members 4a, 4b bends in the thickness direction so as to collapse toward the inside of the main body 2, widening the vertical gap between each of the elongated elastic members 4a, 4b. Furthermore, the lower elongated elastic member 4b bends due to the weight of the sea urchin, disengaging the adjacent elongated elastic members 4a and 4b. This widens the horizontal gap between them, allowing the sea urchin to fall into the main body 2. This allows marine organisms to easily enter the entrance 2a.

[0036] When the sea urchin, having eaten its prey, tries to escape from inside the main body 2 by pressing its body against the elongated elastic members 4a, 4b, as shown in Figure 7(b), the elongated elastic members 4a, 4b deform to face in roughly opposite directions, pushing the marine organism back inward. The elongated elastic members 4a, 4b are arranged alternately, restricting the left-right deformation of adjacent elongated elastic members 4a, 4b, and preventing gaps from opening between the elongated elastic members 4a, 4b in the left-right direction. Therefore, even if the sea urchin inside the main body 2 tries to shrink its body vertically and horizontally to widen the gap between the elongated elastic members 4a, 4b and crawl inside, it will not be able to widen the gap and will be unable to escape.

[0037] 6(a), triangular gaps G that exist between the left and right ends of the entrance 2a and each of the elongated elastic members 4a, 4b are covered by a plurality of elongated elastic members 4c, so that the sea urchin inside the main body 2 cannot escape from the left and right ends of the entrance 2a either.

[0038] The above mechanism allows the trapping device 1 to trap sea urchins for a long period of time. The trapping device 1 with the sea urchins trapped in it can be pulled up from the sea at the desired time. After pulling up, the lid 3 can be removed from the annular member 21, and the sea urchins can be removed from the insertion opening. At this time, if the bait storage tube 5 is removed from the cylindrical net 28, it becomes easier to reach inside the main body 2, making it easier to remove the sea urchins.

[0039] The captured sea urchins can be either discarded or shipped to market. However, because they grow on the seabed where coastal erosion has occurred, they are not very meaty and cannot be shipped to market as they are. Therefore, it is recommended to feed the captured sea urchins in tanks and cultivate them. This is the process for capturing marine life.

[0040] As described above, the capture device 1 according to the embodiment comprises the main body 2 having an entrance 2a formed on the side thereof through which marine organisms can enter, and the escape prevention means 4 having a plurality of elongated elastic members 4a, 4b provided on the main body 2 so as to overlap the entrance 2a of the main body 2, allowing marine organisms to enter the main body 2 through the entrance 2a and preventing marine organisms that have entered the main body 2 from escaping through the entrance 2a. This makes it possible to effectively prevent marine organisms that have entered the capture device 1 from escaping.

[0041] The present invention is not limited to the above-described embodiment, and the following modifications are possible.

[0042] (Variation) In the above embodiment, the main body 2 has a cylindrical shape, but the present invention is not limited to this. For example, the main body 2 may have a cubic or spherical shape, or may have other shapes.

[0043] In the above embodiment, the strength of the main body 2 is maintained by a plurality of support columns 25, but the present invention is not limited to this. If the necessary strength can be ensured by the upper and lower annular members 21, 22 and the plate-like members 23, 24, some or all of the support columns 25 may be omitted, and if strength is required, five or more support columns 25 may be used.

[0044] In the above embodiment, the side net 26 is supported by a frame made up of the upper and lower ring members 21, 22 and the plate-like members 23, 24, but the present invention is not limited to this. For example, if the cage is made of a net such as a trical net and there is no problem with strength or rigidity, the frame may be omitted.

[0045] In the above embodiment, kelp is stored in the bait storage tube 5, but the present invention is not limited to this. For example, the bait storage tube 5 and the cylindrical nets 28, 33 may be omitted, and kelp may be scattered directly inside the main body 2. In this case, the sea urchins that entered first eat the kelp, and the savory components released from the crushed kelp float around, attracting new sea urchins.

[0046] In the above embodiment, the lid 3 is provided so as to be detachable from the annular member 21, but the present invention is not limited to this. The lid 3 may be omitted, and a disk net may be attached to the inlet on the inside of the guide member 21a of the annular member 21, so that the annular member 21 is detachable from the plate-like member 23 and the support 25.

[0047] In the above embodiment, the elongated elastic members 4a, 4b, and 4c are formed by using cable ties. However, the present invention is not limited to this. For example, the elongated elastic members 4a, 4b, and 4c may be formed by arranging a plurality of elastically deformable plate-like members in a comb-like pattern.

[0048] In the above embodiment, the elongated elastic members 4a, 4b, and 4c are formed of elongated plate-like members that are more easily deformed in the thickness direction than in the width direction, but the present invention is not limited to this. For example, the elongated elastic members 4a, 4b, and 4c may be elongated members with a circular cross section.

[0049] In the above embodiment, the elongated elastic members 4a, 4b are arranged so as to intersect with each other in the intermediate region of their lengths, but the present invention is not limited to this. For example, the elongated elastic members 4a, 4b may be arranged so as to intersect with each other at their distal ends.

[0050] In the above embodiment, the elongated elastic members 4a, 4b are arranged alternately, but the present invention is not limited to this. For example, a plurality of one of the elongated elastic members 4a, 4b may be arranged, followed by a plurality of the other elongated elastic members 4a, 4b.

[0051] In the above embodiment, the elongated elastic members 4c are provided at the left and right ends of the entrance 2a to cover the gap G between the entrance 2a and the elongated elastic members 4a, 4b, but the present invention is not limited to this. For example, the covering means may be plate-shaped cover members extending inward at the left and right ends of the entrance 2a, and these cover members may cover the gap G between the entrance 2a and the elongated elastic members 4a, 4b.

[0052] In the above embodiment, the multiple entrances 2a are arranged side by side on the same circumference, but the present invention is not limited to this. The multiple entrances 2a may be arranged in multiple rows on different circumferences so that marine organisms can pass through any of the entrances 2a when ascending from the bottom to the top.

[0053] For example, as shown in Fig. 8, it is possible to arrange a plurality of entrances 2a in two rows on different circumferences in the vertical direction, with the entrances 2a in the first row and the entrances 2a in the second row offset from each other in the circumferential direction. If three entrances 2a are provided in each row, the entrances 2a in the first row and the entrances 2a in the second row can be offset from each other in the circumferential direction by 60°, and if four entrances 2a are provided in each row, the entrances 2a in the first row and the entrances 2a in the second row can be offset from each other in the circumferential direction by 45°.

[0054] The present invention will be specifically described below with reference to examples, although the present invention is not limited to these examples.

[0055] (Example) In the examples, a prototype for capturing sea urchins was created, and it was verified whether it could capture sea urchins in the ocean. In the prototype, a cage with a circular cross section was constructed using a trical net, as shown in Figure 9, and a cylindrical bait container was provided inside the cage. An entrance was provided on the side of the cage, and multiple cable ties were attached in an alternating row to the top and bottom ends of the entrance. In addition, cable ties were attached in a row to the left and right ends of the entrance.

[0056] Next, kelp was placed in the food storage tube of the prototype, which was then submerged in a tank filled with seawater, and six sea urchins were placed in the tank. After that, it was observed for one week whether the six sea urchins would enter the prototype's cage, and if they did, whether the sea urchins could be held in place.

[0057] As a result, as shown in Figure 10, several sea urchins pushed aside the cable ties and entered through the entrance. At the time Figure 10 was photographed, three sea urchins were trapped in the cage, one was entering (arrow in the lower right of Figure 10), and two were outside the cage. As each sea urchin entered the cage, the lower cable tie bent under the urchin's own weight, widening the gap between the upper and lower cable ties in the circumferential direction, allowing the sea urchin to fall into the cage through this gap. On the other hand, some individuals attempted to escape from the cage by climbing onto the cable ties and shrinking their bodies vertically. However, even when the cable ties were pushed in from the inside, the gap between the upper and lower cable ties did not widen in the circumferential direction, effectively preventing the sea urchins from escaping. Repeated experiments of this kind showed that, although there were rare cases in which one out of six sea urchins escaped, in most cases none of the sea urchins escaped.

[0058] The above-described embodiments are merely examples, and the present invention is not limited to these. Various embodiments are possible within the scope of the invention as set forth in the claims. The components described in the embodiments and modifications can be freely combined. Furthermore, inventions equivalent to the inventions set forth in the claims are also included in the present invention. [Explanation of symbols]

[0059] 1. Capture equipment 2 Main unit 2a entrance 3 Lid 4. Escape prevention measures 4a, 4b, 4c Elongated elastic members 5. Feed container

Claims

1. a main body having an entrance formed on a side portion thereof through which marine organisms can enter; an escape prevention means comprising a plurality of elongated elastic members provided on the main body so as to overlap the entrance of the main body, which allows marine organisms to enter the main body through the entrance and prevents marine organisms that have entered the main body from escaping through the entrance; Equipped with Marine life capture equipment.

2. The escape prevention means is a plurality of first elongated resilient members supported above the access opening and extending downwardly and inwardly within the body; a plurality of second elongated elastic members supported below the entrance and extending upwardly and inwardly within the body to intersect with the first elongated elastic members; The marine organism capturing tool according to claim 1.

3. The first elongated elastic members and the second elongated elastic members are arranged alternately in the left-right direction of the entrance. The marine organism capturing tool according to claim 2.

4. the first elongated elastic member and the second elongated elastic member are elongated plate-like members that are more easily deformed in a thickness direction than in a width direction, and are arranged so that the width directions of the first elongated elastic member and the second elongated elastic member are oriented in the left-right direction of the entrance; 4. The marine organism capturing tool according to claim 2 or 3.

5. The first elongated elastic member and the second elongated elastic member are arranged to cross each other at an intermediate region of their lengths.

4. The marine organism capturing tool according to claim 2 or 3.

6. The escape prevention means further includes cover means supported at the left and right ends of the entrance, extending inward within the body, and covering gaps existing between the entrance and the first and second elongated elastic members.

4. The marine organism capturing tool according to claim 2 or 3.

7. a food storage tube provided in the main body and having an opening through which odor components can flow out of the stored food; An inlet through which food can be introduced into the food storage tube is provided on the upper surface of the main body, and a lid is detachably attached to the inlet. The marine organism capturing tool according to any one of claims 1 to 3.

8. The tip of the elongated elastic member is in contact with the food container. The marine organism capturing tool according to claim 7.

9. The body is formed at least in part from trical net; The first elongated elastic member and the second elongated elastic member are binding bands fastened to wires constituting the mesh of the trical net.

4. The marine organism capturing tool according to claim 2 or 3.

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