Aquatic organism collector

Abstract

To provide an extremely epoch-making underwater organism collector that can automatically trap and collect a large number of underwater organisms 5 in a short time by merely submerging a lower part and arrange the collector on the water surface 1.SOLUTION: In an underwater organism collector, when a lower part is made in a submerged state, with the collector body 2 floated and arranged on the water surface 1, underwater organisms 5 intrude into this collector body 2 from the entry part 9 of a hollow bulge 4 erected on the inner bottom of the collector body 2. Then, the underwater organisms 5 hardly bailout from the entry part 9 to the outer side of the collector body 2. Consequently, a large number of underwater organisms 5 stay inside this collector body 2 and are trapped. Also, with this collector body 2 raised, water is discharged and the large number of underwater organisms 5 are collected.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to an underwater organism collector capable of collecting a large amount of aquatic organisms such as fish including medaka and shellfish including pond snails (snails).

Background Art

[0002] For example, it is not easy to scoop medaka or snails growing in ponds or water tanks with a net. In particular, medaka are small, precious and expensive fish, and it is very difficult to easily collect a large amount of them without causing damage as much as possible. For this reason, for example, when it is desired to clean a water tank, the work of collecting medaka and transferring them to another tank has been extremely troublesome.

[0003] On the other hand, shellfish such as pond snails (snails) propagate in large quantities quickly, so it is desired to collect and exterminate them at once, but it is also very difficult to easily collect a large amount of them. Although various collection devices have been developed so far, none of them can collect a large amount of these organisms and allow easy extermination, so this has become a very serious problem in the aquarium rearing of fish.

Summary of the Invention

Problem to be Solved by the Invention

[0004] The present invention identifies such technical problems, solves them and creates an unprecedented excellent product, and aims to provide an extremely innovative underwater organism collector that can automatically collect a large amount of aquatic organisms in a short time simply by submerging the lower part thereof and arranging the collector on the water surface, for example.

Means for Solving the Problem

[0005] The gist of the present invention will be described with reference to the accompanying drawings.

[0006] The present invention provides: Hold in your hand on a water surface 1 It is designed as a container that is small enough to be placed down and has an open top shape that allows the stored water or collected aquatic organisms 5 to be poured out by tilting it by hand.A water passage 3 is provided at the bottom of container 2, allowing water to enter from the outside and submerge the bottom of container 2. Lift it with your hands The water inside the container 2 is drained through the water passage hole 3 by raising it above the water surface 1. Within the container 2, a hollow bulge 4 is provided in a bulging state, which functions as the water passage hole 3 and communicates with the outside of the container 2. This hollow bulge 4 teeth , the entry point 6 through which aquatic organisms 5 from outside the container 2 enter the container 2, The aquatic organism 5 invades The entrance section 9 consists of an entrance passage section 7 and an entrance / exit section 8 which is the exit of the entrance passage section 7. Constituted And, This is the entry point 9. The hollow bulging portion 4 The aforementioned entry point 6, entry passage 7, and entry exit point 8 allow aquatic organisms 5 to enter the container 2. Shape and dimensions It is set to be such that, based on the movement characteristics of the aquatic organism 5, it is difficult for it to return to the container 2 and escape. Shape and dimensions Set to, or road length Set Alternatively, it is set at a position relative to the water surface 1 of the inlet / outlet section 8 which serves as the outlet, When the lower part of the container 2 is submerged in water and placed on the water surface 1, The aforementioned entry portion 9 The hollow bulge 4 From the entrance portion 6, the entrance passage portion 7, and the entrance exit portion 8, the contents body 2 Aquatic organisms 5 from outside enter this container 2, and these aquatic organisms 5 have difficulty returning to the outside of the container 2 through the entry point 8 and escaping, and a large number of aquatic organisms 5 remain inside this container 2 and are collected, and this container 2 Lift it with your hands When raised, The water passage hole 3 or The water passage hole 3 Before Entry point 9 The hollow bulge portion 4 mosquito water This invention relates to an aquatic organism collecting device characterized by being configured to discharge a large amount of aquatic organisms 5 and collect them.

[0007] Also Hold in your hand Water surface 1 It is designed as a container that is small enough to be placed down and has an open top shape that allows the stored water or collected aquatic organisms 5 to be poured out by tilting it by hand. A water passage 3 is provided at the bottom of container 2, allowing water to enter from the outside and submerge the bottom of container 2, thus raising container 2 from the water surface 1. Lift it with your hands The structure is such that by raising it, the water inside the container 2 is drained through the water passage hole 3. At the bottom of the container 2, there is a water passage hole 3 that functions as a water passage hole 3 and communicates with the outside of the container 2. hollow A bulging portion 4 is provided in an upward-bulging state, This hollow bulge 4 teeth , the aquatic organism 5 outside the container 2 can enter the container 2. Interior dimensions The entry point 6 is the entry point through which the aquatic organism 5 enters, The aquatic organism 5 invades An intrusion section 9 consists of an intrusion passage section 7 and an intrusion / exit section 8 which is the exit of the intrusion passage section 7. It is composed of And, The bottom of the container 2 is provided with an entry opening 6 for the aquatic organism 5 to enter, and this entry opening is in communication with the container 2. In The hollow bulge 4 is provided projecting upward, The hollow intrusion portion 9 The hollow portion of the bulging portion 4 is the entry passage portion 7, hollow The upper opening of the bulging portion 4 is the inlet / outlet portion 8. When the lower part is submerged and the container 2 is placed on the water surface 1, the intrusion part 9 That is Aquatic organisms 5 from outside the container 2 enter the container 2 through the inlet 6, inlet passage 7, and inlet exit 8 of the hollow bulging part 4, and these aquatic organisms 5 have difficulty escaping back out of the container 2 through the inlet exit 8, and a large number of aquatic organisms 5 remain inside the container 2 and are collected, and the container 2 Lift it with your hands When raised, the water passage hole 3 Before Entry point 9 The hollow bulge portion 4 or other The aforementioned This invention relates to an aquatic organism collecting device characterized in that, if a water passage hole 3 is provided, water is discharged from the water passage hole 3, and a large amount of aquatic organisms 5 are collected.

[0008] Furthermore, the shape and material of the container 2 are set such that when the container 2 is placed on the water surface 1, water enters the container 2 through the water passage holes 3, causing the lower part to be submerged and the container 2 to float on the water surface 1, or the size, number, and position of the water passage holes 3 are set accordingly. compositionor is provided with a floating portion (11), according to claim 1 , in either of the two items relating to the aquatic organism collector described in

[0009] Furthermore, in the inlet opening provided as the inlet portion (6) at the bottom of the container (2), the tubular bulging portion (4) is provided continuously and protrudes upward, and the tubular bulging portion (4) is connected to the water passage hole (3) It is structured as follows, serves as an invasion path for the aquatic organism (5) te machine configured as the invasion portion (9) that functions as said invasion path, and said invasion portion (9) hollow relating to an aquatic organism collector according to claim 2, wherein the water passage hole (3) is also provided on a peripheral surface of the bulging portion (4).

[0010] Furthermore, the container (2) is a top-open hemispherical or bowl-shaped container having a larger diameter on the upper side than the lower side, and an invasion opening having a size allowing passage of the aquatic organism (5) is provided as the inlet portion (6) at the bottom of the container (2), and the bulging portion (4) having a shape allowing passage of the aquatic organism (5) Interior dimensions hollow is provided as the invasion path portion (7), in communication with the invasion opening (6), in a state of protruding upward, and hollow shape the upper opening of the bulging portion (4) is provided as the invasion outlet portion (8) having a size allowing passage of the aquatic organism (5), and the bulging portion (4) having said shape hollow having said shape The aforementioned is configured in the invasion portion (9), and the invasion outlet portion (8), which is the upper opening of the bulging portion (4) and constitutes said invasion portion (9), hollow is set at a position lower than the height of the upper opening of the container (2), according to claim 1 , in either of the two items relating to the aquatic organism collector described in

[0011] Furthermore, a lid portion (10) is provided at the upper opening of the container (2) in an openable / closable or attachable / detachable manner, according to claim 1 , in either of the two items relating to the aquatic organism collector described in

[0012] furthermore hollow ​The configuration is characterized in that a cap portion 12 covering the entry exit portion 8 of the entry portion 9, which is the upper opening of the bulging portion 4, is provided so as to be openable and closable or detachable. , in either of the two items This relates to the aquatic organism collection device described. [Effects of the Invention]

[0013] As the present invention is configured as described above, it is an extremely innovative aquatic organism collector that can automatically collect and gather a large amount of aquatic organisms in a short time simply by submerging the lower part in water and placing it on the water surface. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of Example 1. [Figure 2] Description of Example 1: This is a cross-sectional view. [Figure 3] This is an explanatory plan view of Example 1. [Figure 4] This is an explanatory front view showing the usage state of Example 1. [Figure 5] This is an exploded perspective view illustrating Example 2. [Figure 6] This is an exploded front view illustrating Example 2. [Figure 7] This is a plan view illustrating Example 2. [Figure 8] This is an explanatory front view showing the usage state of Example 2. [Modes for carrying out the invention]

[0015] A preferred embodiment of the present invention will be briefly described with reference to the drawings, illustrating the operation of the present invention.

[0016] For example, state 2 is at the water surface 1 When you place it Water passage hole 3 or A hollow bulge 4 that functions as a water passage 3 (an entry point 9 that serves as an entry route for aquatic organisms 5) raWhen water enters the body 2, the lower part automatically becomes submerged. Furthermore, the shape and material of the container 2, the size, number, and position of the water passage holes 3, or the float portion 11 provided on the upper part of the container 2, cause the submerged container 2 to float and be held in place on the water surface 1.

[0017] And this condition 2 A hollow structure provided as an entry point 9 bulge 4 Aquatic organisms 5 from outside the container 2 (such as small fish like medaka or snails like pond snails) will successively enter the container 2 through the entry point 6, entry passage 7, and entry exit point 8 (aquatic organism entry passage and water passage 3).

[0018] It is not necessary to use bait, The aforementioned If you scatter bait that the aquatic creatures 5 like on the water surface 1 inside container 2, a large number of aquatic creatures 5 will be attracted to this bait in a short time, either by their own habits (movement characteristics) or by their desire for more bait. this They will successively invade the body in state 2.

[0019] Moreover, the entry port 6, entry passage 7, and entry exit port 8 of the entry port 9 of this bulging portion 4 allow aquatic organisms 5 to enter the container 2. Shape and dimensions, for example Inlet diameter (Inner dimensions of opening) , road diameter (Road dimensions and road length) and outlet diameter (Inner dimensions of opening) The container 2 is set to have a shape and dimensions that make it difficult for aquatic organisms 5 to return to and escape, based on various movement characteristics (habits) such as difficulty in rapidly moving downward at an angle of at least 30 degrees or more in the water, and swimming towards the water surface 1. for example The aforementioned outlet diameter (Inner dimensions of opening) or road diameter (Road dimensions) Or the inlet diameter (Inner dimensions of opening) Alternatively, because it is set to the length of the passage of the entry section 9 or the position of the entry / exit section 8 relative to the water surface 1, once the aquatic organisms 5 enter the container 2 one after another, it is difficult for them to return and escape from this entry section 9, and a large number of aquatic organisms 5 remain in the container 2 and are collected.

[0020] Furthermore, by increasing this condition 2 (water From surface 1 this By lifting container 2, the water passage hole 3 or the water passage hole 3 functions The hollow bulge 4 Intrusion part 9 water This allows for the easy collection of a large number of aquatic organisms without harming them. [Examples]

[0021] A specific embodiment of the present invention, Part 1, will be described with reference to the drawings.

[0022] This embodiment is a collection device configured to easily and quickly collect a large quantity of valuable medaka without using a net and without harming them. A bowl-shaped, opaque container 2 with a large opening at the top has a tubular bulge 4 protruding from its bottom, which forms an entry section 9 for the medaka. Simply placing it on the water surface 1 causes this entry section 9 to function as a water passage 3, allowing water to enter the container 2 through the entry section 9 and submerge the lower part of the container.

[0023] Furthermore, in this embodiment, when the container 2 is placed on the water surface 1, water enters through the tubular bulge 4, which is the water passage hole 3, and the lower part is automatically submerged. However, it does not sink completely, and even when the lower part is submerged, the upper part remains slightly above the water surface 1, allowing it to float. This is achieved by providing a ring-shaped floating portion 11 around the upper part of the container 2 that generates such appropriate buoyancy.

[0024] In other words, the floating position of the container 2 is adjusted by controlling the buoyancy through the shape of the container 2 and the position and size of the floating part 11, so that when the container 2 is placed on the water surface 1, the lower part automatically becomes submerged as described above, and the water surface 1 is set to be slightly lower than the upper opening of the container 2 (the upper edge of the container 2).

[0025] Of course, it is also possible to configure the container 2 itself to generate adequate buoyancy without providing the floating portion 11, or to configure it so that the container 2 can be suspended and held in a predetermined floating position from above.

[0026] In this embodiment, a hollow, or cylindrical, bulging section 4 is provided at the bottom of the container 2, bulging upwards, so as to be connected to the inside and outside of the container 2, and this is configured as an entry section 9 that serves as an entry route for aquatic organisms.

[0027] In other words, the hollow bulge 4 of this embodiment is configured to have an intrusion section 9 (tubular aquatic organism intrusion passage) which consists of an intrusion opening 6 (bottom opening) for aquatic organisms 5 from outside the container 2 to enter the container 2, an intrusion passage 7 (tubular hollow section), and an intrusion exit section 8 (upper opening) which is the exit of the intrusion passage 7.

[0028] Specifically, the container 2 has a hollow, cylindrical bulge 4 that protrudes upward from the center of the bottom, with an entry port 6 (bottom opening) at the bottom of the bulge 4, the hollow part of the bulge 4 serving as the entry passage 7, and the upper opening of the entry passage 7 serving as the entry exit port 8. The protrusion length of the bulge 4 is set so that this exit port is lower than the upper edge of the container 2, and this tubular bulge 4 is configured as the entry port 9 (tubular aquatic organism entry passage).

[0029] In other words, in this embodiment, a cylindrical bulge 4 is provided in a continuous manner with the bottom opening 6 provided at the bottom of the container 2, and this bulge 4 serves as the entry point 9 for aquatic organisms and also functions as the water passage hole 3.

[0030] Furthermore, in this embodiment, the circumferential surface of the cylindrical bulge 4 is also provided with numerous small water passages 3 that are too small for aquatic organisms 5 (in this embodiment, medaka fish) to enter or exit.

[0031] In other words, the water passage 3, which is too small for the aquatic organism 5 (medaka in this embodiment) to enter or exit, could be just the cylindrical bulge 4 (entry part 9) erected inside the container 2. However, in this embodiment, numerous more are provided on the periphery of this bulge 4, so that water can be discharged up to the height where the water passage 3 is provided.

[0032] Furthermore, these water passage holes 3 may be provided in large numbers on the bottom or around the lower part of the container 2, or the container 2 may be configured like a sieve with countless water passage holes 3 provided within a predetermined range. In this case, the large number of fish inside the container 2 may see the food or smell the food through these water passage holes 3, causing them to hesitate when trying to enter through the water passage holes 3, which are too small for them to enter. As a result, the medaka at the bottom of the container 2 tend not to smoothly and instantly enter the container 2 one after another through the entry opening 6 at the bottom of the entry part 9. Therefore, it is preferable not to provide large numbers of these water passage holes 3 for water discharge in the lower part of the container 2 other than the entry opening 6.

[0033] In this embodiment, the entrance opening 6, entrance passage 7, and entrance exit 8 of the intrusion section 9 are set to have an entrance diameter, passage diameter, and exit diameter that allow aquatic organisms 5 (medaka in this embodiment) to enter the container 2. Furthermore, based on the fact that aquatic organisms 5 (medaka in this embodiment) have difficulty moving rapidly downward at an angle of at least 30 degrees in the water and their movement characteristics (habits) such as swimming towards the water surface 1, the exit diameter, passage diameter, or entrance diameter is set to be such that it is difficult for aquatic organisms 5 (medaka in this embodiment) to return to the container 2 and escape once they have entered the container 2, or the passage length or the position of the entrance exit 8 relative to the water surface 1 is set to be such that it is difficult for them to return to the container 2 and escape.

[0034] Therefore, in this embodiment, simply by placing the container 2 on the water surface 1, water enters the container 2 through the inlet 9, which is the water passage hole 3, automatically submerging the lower part of the container 2, and the floating part 11 provided on the container 2 automatically holds it in the appropriate floating position on the water surface.

[0035] Then, from the inlet 6, inlet passage 7, and inlet exit 8 of the intrusion 9 of the bulging part 4 of the container 2, aquatic organisms 5 from outside the container 2 enter the container 2 one after another. For example, if bait is scattered on the water surface 1 inside the container 2, even more aquatic organisms 5 will enter the container 2 one after another in search of the bait and be captured in an even shorter time.

[0036] In other words, the diameter of the outlet, passage, or entrance is set to make it difficult for the aquatic organisms 5 to return to and escape from the container 2 based on their movement characteristics, or the length of the passage or the position of the entry / exit section 8 relative to the water surface 1 is set accordingly. As a result, once the aquatic organisms 5 enter the container 2 one after another, it is difficult for them to return to and escape from this entry section 9, and a large number of aquatic organisms 5 remain inside the container 2 and are collected. Furthermore, by simply lifting the container 2 above the water surface 1, water is discharged from the water passage holes 3, and a large number of aquatic organisms 5 can be easily collected without harming them.

[0037] Thus, simply by placing container 2 on the water surface 1, a large number of medaka can be caught in a short time. This is because medaka in the water swim towards the water surface or seek light from the water surface, and are attracted by the sounds of schools of fish or by schools of fish swimming together. enemy This is because, due to their instinct to protect themselves, the medaka at the bottom of container 2 swim up the entry point 9 and enter container 2 one after another.

[0038] For example, assuming the total length of a medaka is approximately 3 cm, even if the inlet diameter, passage diameter, and outlet diameter of the entry section 9 are doubled to 6 cm to facilitate entry, by setting the passage length of the entry section 9 (the protruding length of the bulging section 4) to 3 / 5 of the depth of the container 2 and the height of its outlet (entry exit section 8) to be close to the water surface 1, due to the movement characteristics (habits) of aquatic organisms 5 (medaka in this embodiment) such as the difficulty of rapidly moving downwards at an angle of at least 30 degrees in the water, and the habit of medaka that, once they enter the container 2, swim laterally along the inner surface of the container 2, and their tendency to stay in groups, almost no medaka will be able to return to the entry passage section 7 from the entry exit section 8, which is at a predetermined height close to the water surface 1, and swim back down to the entry section 9 to escape, thus enabling the collection of a large number of medaka in a short time.

[0039] Furthermore, fish that are adept at remaining still and can repeatedly stop and descend slowly even in a narrow tube can return and descend through the entry exit 8 at the upper end of the tubular entry section 9 they entered from, and escape back to the container 2. However, fish that are not adept at this (such as many fish like medaka) cannot tilt their bodies downwards and swim downwards through the narrow diameter or passage of the tubular entry section 9 to return and escape. Moreover, in this embodiment, the entry exit 8 of the entry section 9, which serves as the return entrance, is located considerably higher than the bottom of the container 2 and closer to the water surface 1, so even after a long time, it is not possible to return and escape with this structure. to In experiments conducted by [name of person / group], it was confirmed that most medaka that entered container 2 were unable to return and escape even after a long period of time, and that almost all medaka in the tank entered container 2 and were captured.

[0040] Alternatively, a lid 10 may be provided at the upper opening of the container 2 so as to be openable and closable or detachable, in order to protect the medaka from predators such as birds.

[0041] Alternatively, a cap portion 12 (adapter) that covers the inlet / outlet portion 8 of the inlet portion 9, which is the upper opening of the tubular bulging portion 4, may be provided that can be opened and closed or attached and detached, so as to prevent the medaka from being lured back out by the draining water when the container 2 is lifted and the water drains out.

[0042] This embodiment will be described in more detail.

[0043] For example, dip nets are sold in a variety of sizes, from large to small, to suit the target fish. However, even when chasing fish with a dip net, it's often difficult to catch them because the fish move quickly. Also, if you don't catch the fish in one go with the dip net, the fish will become wary, panic, and try to escape, hitting the net's frame or the underwater wall, which can cause scales to fall off, chipped mouths, or broken jaws. Some fish may even die from the severe damage. Therefore, it is difficult to catch a large number of fish at once with a dip net, and it is also difficult to catch fish without injuring them.

[0044] Furthermore, catching fish with a dip net requires timing the net's placement perfectly with the fish, making it difficult even for experienced fish farm workers who are skilled in handling dip nets.

[0045] Thus, there was currently no simple and efficient method of catching fish that could replace dip nets.

[0046] In this embodiment, it is possible to provide a fish catcher that can be used by anyone to easily and automatically catch fish without harming them, even with a small amount of bait, by utilizing the habits of fish.

[0047] To explain further, fish have a habit of using their mouths not only when they are looking for food, but also when they are interested in something or when they are threatening something. In human terms, it is like a hand reacting when a ball is suddenly thrown to you; fish also use their mouths to bite reflexively. This reflex is called a reaction bite, and since fish reflexively use their mouths to catch and prey on things that are falling, they are more likely to react to food when it is falling. Therefore, to make the food easier to react to, The above in this embodiment An entry opening (entry point 6) is located at the bottom.

[0048] When bait is scattered inside container 2, it dissolves in the water. Once container 2 is filled with bait, the water containing the scent of the dissolved bait falls into the water through the entry opening and diffuses easily. As a result, fish can easily detect the scent and tend to gather around the lower bottom of container 2, and are easily guided towards the entry opening. This entry opening is located at the bottom to allow the scent of the bait to fall downwards and make it easier to attract fish.

[0049] As described above, the entry opening Condition 2 bottom Establish Ruko and This enhances the fish's reflexes (reaction bites), sense of smell, and vision, making them more likely to react to the bait. As a result, it becomes easier to attract fish to container 2.

[0050] When container 2 is floated in water and bait is scattered inside container 2, the fish that find the bait will Condition 2 The fish enters the container 2 through the entry opening at the bottom, i.e., the entry opening 6 of the entry section 9, tilting its body with its head upwards, passing through the entry passage 7, and entering the container 2 through the entry exit opening 8. Once inside the container 2, the fish eats a small amount of food.

[0051] Fish have a habit of claiming territory to monopolize a lot of food and trying to drive other fish out of their territory by bumping into them. However, because container 2 is a small space, territorial disputes are more likely to occur as fish try to monopolize food, and skirmishes will occur. The behavior of fish that are skirmishing inside container 2 makes it easier for fish outside container 2 to perceive that there is food inside, and thus makes it easier to lure fish outside container 2 into container 2.

[0052] Furthermore, although the food disappears within container 2, the scent of the dissolved food remains in the water, so more fish enter container 2, drawn by this scent. As the number of fish increases and more fish move, the light entering from the water surface 1 appears to shimmer, and the sound of swimming becomes louder. Fish outside container 2, sensing the water's movement and this sound, mistakenly believe that there are fish eating inside container 2. As a result, even though there is no longer any food inside container 2, more fish enter in search of food. In this way, a large number of fish enter in a short period of time.

[0053] On the other hand, once a fish enters container 2, it tries to get out because there is no food and it is cramped with many other fish. However, because container 2 is designed with an open top and a tubular entry point 9 at the bottom that is large enough for a fish to pass through, once a fish enters container 2, it is difficult for it to get out, as described above, and the number of fish inside container 2 increases.

[0054] In other words, once a fish enters, it tries to get out along the inner surface of container 2, but its head hits the inner surface of container 2, causing it to move up, down, left, and right. As a result, the fish's movement becomes a swimming motion along the inner surface of container 2, and it becomes trapped, panicking, thrashing around, and splashing water. This splashing movement causes the water surface 1 to ripple, so light is scattered and sound is reflected and reaches the bottom of container 2.

[0055] In this situation, the fish mistake it for a feeding frenzy where many fish are consuming a large amount of food, and despite the absence of food, they enter the container 2 through the tubular entrance 9, which is normally difficult to enter and exit. As the fish enter the container 2 in this way, more splashes are created, and the feeding frenzy becomes larger.

[0056] Furthermore, as a feeding frenzy occurs within container 2, the fish all rise to the surface simultaneously and head towards container 2. As a result, the fish enter container 2 at an accelerating rate. At this time, fish near the surface outside container 2 also rapidly descend towards the entry opening at the bottom, following the shape of container 2.

[0057] Furthermore, fish have a habit of living in schools to protect themselves from predators. Therefore, even if there is a fish outside of container 2 that does not intend to eat, a fish is more likely to be preyed upon by predators when it is alone than when it is in a school, so it will enter the school of fish inside container 2 to protect itself from predators.

[0058] From the above, it can be concluded that most fish enter condition 2, and there are almost no fish outside of condition 2.

[0059] In this way, fish will continuously enter container 2 and be collected in just about 5 minutes, but the fish inside container 2 will swim around trying to escape, becoming increasingly stressed. Therefore, to prevent the fish from becoming too stressed, after a certain amount has been collected (assuming the capacity of the container in this embodiment is 700 ml, this means approximately 100 fish of about 2 cm in size and approximately 50 fish of about 3 cm in size), the container should be removed and the collection should be moved to the next location.

[0060] Furthermore, in this embodiment, since container 2 has an open top, when a fish enters container 2, the water and surface conditions are the same as those in nature. As a result, the fish swim naturally and are less likely to be wary. Therefore, it is easier to utilize the fish's natural habits and attract fish. Also, because the water surface 1 can be directly viewed, the number and condition of the fish are easy to understand, making it easier to determine the timing for moving them to the next location.

[0061] Before transferring the fish, attach the cap part 12 (a snap-fit ​​adapter) to the top of the entry part 9. This adapter has a small hole (water passage hole 3) that prevents the fish from escaping, and since this adapter blocks the entry exit part 8 at the top of the entry part 9, the fish have nowhere to escape from the container 2 and cannot get out of the container 2. Therefore, it is even less likely that the fish will spill out when transferring them to the next location.

[0062] When transferring the fish, as mentioned earlier, lift container 2 above the water surface 1. This allows water to drain from the entry point 9, lowering the water level inside container 2. Then, move the collected container 2 to the next location and let it flow in.

[0063] As described above, by utilizing the habits of fish, fish can be automatically caught with little bait, eliminating the need for quick movements like those required when using a dip net. This makes it easy for anyone to catch fish, and a large number of fish can be scooped up in one go, minimizing harm to the fish. [Examples]

[0064] Unlike Example 1 described above, this embodiment is not a collection device configured to easily and efficiently collect large quantities of medaka without harming them, for purposes such as temporarily evacuating medaka when cleaning aquariums, collecting medaka for viewing or selection, or collecting medaka in ponds. Instead, this embodiment 2 is configured to similarly and efficiently collect large quantities of snails, such as ramshorn snails and pond snails, which are harmful snails that may proliferate or breed in large numbers in aquariums.

[0065] Specifically, in this embodiment 2, in addition to the configuration of embodiment 1, in order to prevent the fish from escaping to the outside of the container 2 by climbing up the container 2, unlike medaka fish, a lid 10 is provided at the upper opening of the container 2 so that it can be opened and closed or attached and detached.

[0066] In this embodiment, , medium empty The aforementionedThe bulging section 4 is configured to have an entry point 6 (bottom opening) for aquatic organisms 5 (snails in this embodiment) from outside the container 2 to enter the container 2, and an entry section 9 (tubular snail entry passage) which consists of an entry passage section 7 (tubular hollow section) and an entry exit section 8 (upper opening) that serves as the exit for the entry passage section 7.

[0067] Specifically, similar to Embodiment 1, the container 2 is configured with a tubular, hollow bulge 4 projecting upward from its bottom, with an entry port 6 (bottom opening) at the bottom of the bulge 4, the hollow portion of the bulge 4 serving as the entry passage 7, and an entry exit port 8 (upper opening) positioned lower than the upper edge of the container 2 above the bulge 4, with the bulge 4 serving as the entry portion 9 (tubular snail entry passage).

[0068] In other words, in this embodiment, a tubular ( for example The cylindrical bulge portion 4 is provided to protrude, and the inlet portion 6 and the outlet portion 8 function as the water passage holes 3, and these Shape and dimensions The structure is designed so that small fish such as medaka cannot enter, but snails can, and furthermore, water passages 3 are provided on the circumferential surface of the bulging part 4 so that small fish such as medaka cannot enter or exit.

[0069] To explain further, in this embodiment, the entrance opening 6, entrance passage 7, and entrance exit 8 of the intrusion section 9 are set to have an entrance diameter, passage diameter, and exit diameter that allows aquatic organisms 5 (snails in this embodiment) to enter the container 2, and are set to have an exit diameter, passage diameter, or entrance diameter that makes it difficult for aquatic organisms 5 (snails in this embodiment) to return to the container 2 and escape, based on their movement characteristics, or to have a passage length or the position of the entrance exit 8 relative to the water surface 1. In other words, the entrance and passage diameters are set to be large enough for snails to pass through, but small enough that fish in the tank cannot pass through.

[0070] Furthermore, in this embodiment, since snails can swim by crawling along the water surface 1, the entry exit section 8, which serves as the exit point, may be set to be just above the water surface 1, thereby making it even more difficult for fish other than snails to enter.

[0071] In this embodiment, the cap portion 12 (adapter) of the insert-fit type described in Embodiment 1 is provided with an entry hole that is too small for fish to pass through but large enough for snails to pass through. This entry hole is designated as the entry / exit portion 8 in this embodiment, thereby configuring the collecting device of Embodiment 1 to function as a collecting device for snails.

[0072] In this embodiment, by configuring the container 2 in the same manner as in Embodiment 1, simply by placing the container 2 on the water surface 1, water automatically enters the container 2 through the inlet 9, which is the water passage hole 3, automatically submerging the lower part of the container 2. Furthermore, the floating portion 11 provided on the container 2 automatically maintains it in an appropriate floating position on the water surface.

[0073] In this embodiment, as in Embodiment 1, aquatic organisms 5 (snails such as ramshorn snails in this embodiment) from outside the container 2 enter the container 2 one after another through the inlet 6, inlet passage 7, and inlet exit 8 of the inlet 9 of the bulging part 4 of the container 2. For example, if bait is scattered on the water surface 1 inside the container 2, or if a bait basket (strainer) containing bait and allowing only its extract to flow into the container 2 is hung or placed, even more aquatic organisms 5 (snails such as ramshorn snails in this embodiment) will enter the container 2 one after another in search of the bait and be collected in an even shorter time.

[0074] In this way, simply by placing the container 2 on the water surface 1, a large number of snails such as pond snails can be collected in a short time. This is because snails such as pond snails have a habit of swimming towards the water surface, so the snails such as pond snails at the bottom of the container 2 swim up the intrusion section 9 and enter the container 2 one after another.

[0075] For example, snails such as ramshorn snails that have entered the container 2 tend to swim laterally and stay along the inner surface of the container 2. Therefore, no snails such as ramshorn snails return to the entry passage 7 and escape from the entry exit 8, which is at a height close to the water surface 1 at a predetermined height. Thus, even after a long time, this structure prevents almost any snails from returning and escaping, resulting in the collection of a large number of ramshorn snails. Experiments using this embodiment have confirmed that even after a long time, almost no snails return and escaping, and a large number of ramshorn snails are collected.

[0076] Furthermore, a lid 10 is provided at the upper opening of the container 2 so that it can be opened and closed or attached and detached, preventing the contents from escaping from the upper opening of the container 2.

[0077] This embodiment will be described in more detail.

[0078] Snails can unintentionally enter aquariums for ornamental fish by attaching to aquatic plants or rocks, but a moderate number of snails act as cleaners and decomposers, eating leftover fish food and waste, dead leaves and algae from aquatic plants, preventing rapid deterioration of water quality and helping to maintain a healthy environment and create a beautiful landscape. Therefore, their eradication is not considered a major problem.

[0079] However, the problem arises when they multiply excessively, which can disrupt the balance in the aquarium. If the number of snails increases too much, they will eat more, leading to more waste and a deterioration of water quality. If there is no food left, they may die in large numbers, or if there are aquatic plants, they may start eating the plants, disrupting the balance of water quality and the aquarium's appearance. In addition, a large number of snails themselves spoil the appearance of the aquarium. Moreover, it often happens that snails, which are initially only a few individuals, can rapidly increase in number and become unmanageable if left unattended for a while.

[0080] The main types of snails treated as such are the ramshorn snail, the pond snail, and the freshwater limpet.

[0081] Aquatic plants often have snails and egg masses attached to them, and these can be easily overlooked if you're only paying attention to the snails. Fish can also occasionally have snails attached to them.

[0082] One method of snail extermination is to remove them one by one by hand, which is a tedious and time-consuming task, and it is also inefficient because it is easy to miss hidden snails. Furthermore, even if you try to remove them by hand, snails will shrink their bodies and stick to you. stomach They get stuck and are difficult to remove. There are methods to efficiently collect snails along the walls, but it's impossible to collect snails attached to the substrate or aquatic plants.

[0083] Using chemicals to eliminate them is a convenient, quick, and more reliable method. Some products are harmless to medaka and shrimp, and can eliminate them efficiently. However, since the dead snails will decompose after being treated with the above chemicals, they need to be removed immediately. Therefore, remove the dead snails one by one by hand. mosquito, Aquarium of Reset And to rebuild the aquarium environment Yes. Also, many people keep pond snails, which eat algae well and have high water purification capabilities, as tank mates, but there is also the problem that the snails will be eradicated as well.

[0084] Furthermore, some extermination products attract snails, keep them in the tank, and then remove them for extermination. However, large quantities of collection... but Because it's not possible to do this repeatedly, it's necessary to set it up multiple times and pull up the snails, which is time-consuming.

[0085] Another last resort is to reset the aquarium. Thoroughly wash all aquarium equipment with tap water, dry it completely in the sun, and then set up the aquarium again. This process of washing and drying takes time and effort, and setting up the aquarium again also takes time and effort, but it is the most reliable way to eradicate the pests. however, Aquarium keepers who own many tanks faced the problem of not being able to dedicate enough time and effort to each individual tank.

[0086] Until now, as mentioned above, there have been various methods for snail control, but in ornamental fish keeping and aquatic plant cultivation, beneficial snails such as the Japanese pond snail (Bellamya japonica), which eats algae and has water purification capabilities, and the Japanese nerite snail (Nerite snail) and the Japanese pond snail (Nerite nematodea), as well as fish, coexist in the water, making it difficult to selectively eradicate only the Japanese pond snail (Physa acuta) and the Japanese stag snail (Lymnaea stagnalis). Therefore, conventional methods have not been able to efficiently eradicate Japanese pond snails and Japanese stag snails, and there has been a problem in that there is no easy method.

[0087] This embodiment provides a collection device that utilizes the habits of the Japanese pond snail (Physa acuta) and the Japanese squirrel (Lymnaea stagnalis) to efficiently and easily remove large quantities of these snails in a single attempt.

[0088] To explain further, there are two types of snails: those that crawl through the water and those that can float and crawl on the water's surface. Species like the Japanese pond snail (Bellamya japonica), the Japanese nerite snail (Nerite snail), and the Japanese tiger snail (Nerite nematodea) crawl along the sides of the water or on aquatic plants. In contrast, the Japanese pond snail (Physa acuta) and the Japanese scallop (Lymnaea stagnalis) not only crawl along the sides of the water or on aquatic plants, but can also float and swim along the water's surface on their ventral side. This ability of the Japanese pond snail and the Japanese scallop to float and swim along the water's surface on their ventral side is utilized in the eradication of these snails.

[0089] In other words, in this embodiment, the container 2 is floated on the water surface 1, it is confirmed that water has entered the container 2, and the cap portion 12 (adapter) is attached to the inlet / outlet portion 8 of the upper opening of the inlet portion 9.

[0090] this Cap part 12 ( adapter ) The structure is designed to have passage holes for ramshorn snails and pond snails, which serve as entry and exit points 8. Guy Since the pond snail can crawl above, below, to the left and right of the tubular entry section 9 and along the ceiling, it can crawl along the adapter (underside of the ceiling surface) of the entry section 9 to reach the aforementioned central opening (entry exit section 8) and enter the container 2.

[0091] Place ornamental fish food or crushed fruit, or other items that can be used as food for pond snails and scallops and also attract them with their scent, into the strainer (feed basket). Place this on the lower outside of the entry point 9 inside the container 2, and close the upper opening of the container 2 with the lid 10. After a short time, the scent of the food dissolved in the water will slowly seep out from the strainer placed in the water. The smell of this bait is from condition 2. From the entry opening (entry port 6) at the bottom of the entry port 9 Condition 2 It falls out. The pond snails and ramshorn snails, attracted by the scent of this bait, float to the surface and cling to container 2. And then, The scent of the bait spreads out. Crawling towards the entry opening, This entry opening It passes through the entry point 9 and reaches the inside of container 2 through the entry exit point 8 of the upper adapter. Following the scent of the food, it wanders around inside container 2 and eventually reaches the strainer containing the food.

[0092] When ramshorn snails and pond snails reach the strainer, they try to eat the food, but since the food is inside the strainer, they can only eat the portion that is slightly sticking out from the strainer's mesh. Therefore, the strainer mainly serves to release the scent of the food. The scent leaking out of container 2 gradually spreads into the surroundings, and ramshorn snails and pond snails are attracted to it one after another and enter container 2, which is filled with the scent. In this way, ramshorn snails and pond snails are gradually collected inside container 2.

[0093] While pond snails and ramshorn snails try to leave the strainer after sniffing it, once they enter container 2, they cannot get out from either the top or bottom of container 2. They also cannot find the narrow tubular opening at the top of the container (entry exit 8) located near the water surface 1 in the center, and even if they do find it, they do not have the habit of descending from there. Therefore, once they enter, they are almost never able to get out.

[0094] Once the ramshorn snails and pond snails have entered the container 2, they have difficulty returning and descending to escape through the passage hole (entry exit hole 8) at the top of the tubular entry section 9. Furthermore, ramshorn snails and pond snails from outside the container 2 continue to enter the container 2 through that hole, so the incoming ramshorn snails and pond snails are repelled, and the hole at the top of the entry section 9 (Intrusion exit part 8) This will make it even more difficult to get out of the situation.

[0095] Furthermore, ramshorn snails and pond snails that enter container 2 have a tendency to move upwards. They may even come out of the water and cling to the walls, trying to escape upwards. As a result, ramshorn snails and pond snails accumulate and remain on the inner outer rim of the lid 10, so once they enter, they move away from the upper hole of the tubular entry point 9, making it even more difficult for them to escape.

[0096] Once container 2 is full of pond snails and ramshorn snails, remove the lid 10, drain the water, and remove them. Since the pond snails and ramshorn snails are clinging to the inside of container 2, you can knock them off by tapping it on the floor or by using a hose to create a stream of water. Alternatively, you can fill a bucket with water and rinse it vigorously to remove them. If that's too much trouble, you can leave container 2 in the sun to dry.

[0097] As described above, pond snails and scallops are collected. The capacity of the container in this example is 700 ml, and the tubular entry part 9 (Bottom radius 2cm × Bottom radius 2cm × 3.14 × Height 3cm = Volume) Subtracting 37.68 ml, it is calculated that at least approximately 660 ml or more of ramshorn snails and pond snails can be collected, meaning a large number of ramshorn snails and pond snails can be collected at once.

[0098] Furthermore, since snails such as the Japanese pond snail (Bellamya japonica) cannot float in the water, by floating container 2 submerged at the bottom, these snails cannot reach container 2. Therefore, it is possible to avoid collecting these snails. Thus, only ramshorn snails and pond snails, which can float in the water and crawl on the surface, can be collected. In the water, snails, beneficial snails such as the Japanese pond snail, and other fish coexist, making it difficult to selectively remove only ramshorn snails and pond snails. However, by using this method, it is possible to prevent the invasion of beneficial snails such as the Japanese pond snail and fish.

[0099] Furthermore, taking advantage of the fact that fish have difficulty swimming vertically, the entry point 9 is designed so that only snails can enter. In addition, by making the entry exit point 8 at the upper end of the entry point 9 (the through hole of the adapter that blocks it) just above the water surface, fish can be prevented from entering even further.

[0100] The above describes the method for eradicating pond snails and ramshorn snails. Aside from adding a strainer for bait, the configuration and operation for eradicating the snails are the same as those of the fish collector mentioned earlier.

[0101] Furthermore, the present invention is not limited to Examples 1 and 2, and the specific configuration of each component, its use, and product setting can be designed as appropriate. [Explanation of Symbols]

[0102] 1 water surface 2. Condition 3 Water passage holes 4 Bulge 5 Underwater life 6. Entry point 7. Access route 8 Entry / exit section 9 Intrusion part 10 Lid 11 Floating part 12 Cap section

Claims

1. The container is configured to be a top-opening type container that is small enough to be held in the hand and placed on the water surface, and can be tilted by hand to pour out the water stored inside or the aquatic organisms collected, and a water passage is provided at the bottom of the container so that water can enter from the outside and the bottom of the container becomes submerged, and the water inside the container is drained through the water passage when the container is lifted by hand and raised above the water surface, Within the container, a hollow, bulging portion is provided in a bulging state, which functions as a water passage and communicates with the outside of the container. This hollow bulge is composed of an entry section consisting of an entry point for aquatic organisms from outside the container to enter the container, an entry passage for the aquatic organisms to enter, and an entry exit section which is the exit of the entry passage. The inlet, inlet passage, and inlet / outlet of the hollow bulge that constitutes the entry portion are set to a shape and dimensions that allow aquatic organisms to enter the container, and are set to a shape and dimensions, or passage length, or position relative to the water surface of the inlet / outlet portion that serves as the exit, that makes it difficult for aquatic organisms to return to and escape the container, based on the movement characteristics of aquatic organisms. An aquatic organism collector characterized in that, when the lower part of the container is submerged in water and the container is placed on the water surface, aquatic organisms from outside the container enter the container through the entry port, entry passage, and entry exit port of the hollow bulging part which is the entry port, and these aquatic organisms have difficulty escaping back out of the container through the entry exit port, resulting in a large number of aquatic organisms remaining inside the container and being collected. Furthermore, when the container is lifted by hand and raised, water is discharged from the water passage holes or the hollow bulging part which is the entry port which is the water passage hole, and a large number of aquatic organisms are collected.

2. The container is configured to be a top-opening type container that is small enough to be held by hand and placed on the water surface by hand, and can be tilted by hand to pour out the water stored inside or the aquatic organisms collected, and a water passage hole is provided at the bottom of the container so that water can enter from the outside and the bottom of the container becomes submerged, and the water inside the container is drained through the water passage hole when the container is lifted by hand and raised above the water surface, A hollow, bulging portion is provided at the bottom of the container, which functions as a water passage and communicates with the outside of the container, and is provided in an upward-bulging state. This hollow bulge has an internal dimension that allows aquatic organisms from outside the container to enter it, and is composed of an entry section consisting of an entry point that serves as the entry point for the aquatic organisms, an entry passage for the aquatic organisms to enter, and an entry exit section that serves as the exit for the entry passage. The bottom of the container is provided with an entry opening for aquatic organisms, which serves as the entry point, and a hollow bulge is projected upward in communication with this entry opening, the hollow portion of the hollow bulge that serves as the entry passage, and the upper opening of this hollow bulge serves as the entry exit point. Aquatic organism collector characterized in that, when the lower part is submerged in water and the container is placed on the water surface, aquatic organisms from outside the container enter the container through the entry port, entry passage, and entry exit port of the hollow bulging part which is the entry port, and these aquatic organisms have difficulty escaping back out of the container through the entry exit port, resulting in a large number of aquatic organisms remaining inside the container and being collected. Furthermore, when the container is lifted by hand and raised, water is discharged from the water passages in the hollow bulging part which is the entry port, or from other water passages if any are provided elsewhere, thereby collecting a large number of aquatic organisms.

3. The aquatic organism collector according to any one of claims 1 or 2, characterized in that the container shape and material are set such that when the container is placed on the water surface, water enters the container through the water passage holes, causing the lower part to be submerged and the container to float on the water surface, or the size, number, and position of the water passage holes are set accordingly, or the device is equipped with a floating part.

4. The aquatic organism collector according to claim 2, characterized in that a tubular bulge is provided in a continuous manner with respect to the entry opening provided at the bottom of the container as the entry port, and this tubular bulge is configured as the water passage hole and also as the entry port that functions as an entry route for aquatic organisms, and the water passage hole is also provided on the circumferential surface of the hollow bulge that is the entry port.

5. The container is a hemispherical or bowl-shaped container with an open top, where the diameter of the upper side is greater than the diameter of the lower side. The bottom of the container has an entry opening large enough for the aquatic organism to pass through, and a hollow bulge with an internal dimension large enough for the aquatic organism to pass through is provided as an entry passage, extending upward and communicating with the entry opening. The upper opening of this hollow bulge is provided as an entry exit, large enough for the aquatic organism to pass through, and this hollow bulge constitutes the entry section. The aquatic organism collector according to either claim 1 or 2, characterized in that the entry exit portion, which is the upper opening of the hollow bulging portion that serves as the entry point, is set at a position lower than the height of the upper opening of the container.

6. The aquatic organism collecting device according to either claim 1 or 2, characterized in that a lid is provided at the upper opening of the container so as to be openable and closable or so as to be detachable.

7. The aquatic organism collector according to any one of claims 1 or 2, characterized in that a cap portion is provided that covers the entry exit portion of the entry portion, which is the upper opening of the hollow bulging portion, and is openable and closable or detachable.

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