CN113349112B - Device for oviposition and inhabitation of cephalopods - Google Patents
Device for oviposition and inhabitation of cephalopods Download PDFInfo
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- CN113349112B CN113349112B CN202110698996.8A CN202110698996A CN113349112B CN 113349112 B CN113349112 B CN 113349112B CN 202110698996 A CN202110698996 A CN 202110698996A CN 113349112 B CN113349112 B CN 113349112B
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- 241000238366 Cephalopoda Species 0.000 title claims abstract description 50
- 230000017448 oviposition Effects 0.000 title claims description 16
- 235000013601 eggs Nutrition 0.000 claims abstract description 111
- 230000012447 hatching Effects 0.000 claims abstract description 28
- 208000028804 PERCHING syndrome Diseases 0.000 claims description 21
- 102000002322 Egg Proteins Human genes 0.000 claims description 19
- 108010000912 Egg Proteins Proteins 0.000 claims description 19
- 210000004681 ovum Anatomy 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000011534 incubation Methods 0.000 claims description 5
- 241000269799 Perca fluviatilis Species 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 abstract description 12
- 239000001301 oxygen Substances 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 241000238371 Sepiidae Species 0.000 description 5
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- 239000004576 sand Substances 0.000 description 3
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a cephalopod spawning and inhabiting device, aiming at providing a cephalopod spawning and inhabiting device which can not only adapt to the characteristic that when the cephalopod is spawning, the cephalopod is fond of spawning on an attachment close to the seabed, but also can effectively solve the problem that the hatching rate is reduced because decaying substances close to the seabed consume oxygen, and water flow and oxygen content are low, so that the device is not beneficial to hatching a large amount of fertilized eggs attached together; the egg attaching devices are arranged on the inhabiting net cage and comprise buoyancy blocks and egg attaching ropes positioned in the egg inhabiting cavity.
Description
Technical Field
The invention relates to a spawning and inhabiting device, in particular to a cephalopod spawning and inhabiting device.
Background
Cephalopods (e.g., cuttlefish) are one of the most common swimming creatures in the ocean, and with the recent years, the yield of cephalopods has been decreasing year by year due to various causes such as marine environmental pollution, over-fishing, and destruction of egg laying sites. In order to protect cephalopods resources, the cephalopods are subjected to proliferation and releasing and habitat protection, and certain results are obtained; meanwhile, in order to attract cephalopoda animals to gather together for spawning, through the characteristic that cephalopoda prefers nests, nests such as artificial net cages are put in the sea floor, artificial egg-attaching bases such as egg-attaching ropes are additionally arranged on the artificial net cages, and inhabitation, spawning and fertilized egg attachment environments are provided for the cephalopoda animals.
Although the nest combining the artificial net cage and the egg-attaching rope can provide habitation, egg laying and fertilized egg attaching environment for cephalopods, because the cephalopods favor laying eggs on attachments close to the sea bottom when laying eggs, a large amount of fertilized eggs are attached on the egg-attaching rope close to the sea bottom (generally attached on the egg-attaching rope within 60 centimeters away from the sea bottom), and because rotting substances at the bottom of the water in the area close to the sea bottom consume oxygen, and water flow is less, the oxygen content of the area close to the sea bottom is lower, so that the nest is not beneficial to hatching of a large amount of attached fertilized eggs, and the problem of lowered hatching rate exists. On the other hand, the dropped fertilized eggs directly sink into the seabed sludge, so that the fertilized eggs of the cuttlefish die.
Disclosure of Invention
The invention aims to provide a cephalopod spawning and inhabiting device, which can not only adapt to the characteristic that cephalopods are favored to spawn on attachments close to the seabed when spawning, but also can effectively solve the problem that the hatching rate is reduced because decaying substances at the bottom of the water in the area close to the seabed consume oxygen, and the water flow is low, the oxygen content is low, so that the hatching of a large number of attached fertilized eggs is not facilitated.
The technical scheme of the invention is as follows:
a cephalopod spawning and perching device, comprising:
a perching net cage, a clapboard is arranged in the middle of the perching net cage, the clapboard divides the inner cavity of the perching net cage into a spawning perching cavity body positioned below the clapboard and an incubation cavity body positioned above the clapboard, a plurality of inlet and outlet channels are arranged on the side wall of the spawning inhabitation cavity;
the egg attaching devices are arranged on the inhabiting net cage and comprise buoyancy blocks and egg attaching ropes positioned in the egg inhabiting cavity, and in the same egg attaching devices, when the weight of fertilized eggs attached to the egg attaching ropes reaches a set value, the egg attaching ropes of the egg attaching devices float upwards into the hatching cavity under the action of the buoyancy blocks.
The clapboard is provided with clapboard through openings which are in one-to-one correspondence with the ovum attaching devices, each ovum attaching device comprises a vertical guide sleeve arranged on the top wall of the hatching cavity, a vertical guide rod arranged in the vertical guide sleeve in a sliding way, a supporting plate fixed in the middle of the vertical guide rod, a lower end plate fixed at the lower end of the vertical guide rod, a buoyancy plate which is positioned below the supporting plate and can slide up and down along the vertical guide rod, a radial guide sleeve arranged on the upper surface of the supporting plate, a sliding stop lever arranged in the radial guide sleeve in a sliding way, an inner limiting block and an outer limiting block which are arranged on the sliding stop lever, a compression spring sleeved on the sliding stop lever, a line passing hole arranged in the middle of the supporting plate and a connecting line connecting the buoyancy plate and the sliding stop lever,
the buoyancy of the buoyancy block is larger than the gravity of the egg attaching device, the buoyancy block is arranged at the upper end of the vertical guide rod, the egg attaching rope is connected between the buoyancy plate and the lower end plate, in the same egg attaching device, the buoyancy of the buoyancy plate is larger than the gravity of the egg attaching rope, the egg attaching rope is in a stretched state under the action of the buoyancy plate, one end of the connecting wire is connected with the upper surface of the buoyancy plate, the other end of the connecting wire penetrates through the wire passing hole and is connected with one end of the sliding stop rod facing the vertical guide rod,
backup pad and buoyancy board homoenergetic pass the baffle cross-port that corresponds, radial guide pin bushing is along the radial extension of vertical guide arm, the slip pin slides along the direction of keeping away from vertical guide arm along radial guide pin bushing under compression spring's effect, and until interior stopper supports on radial guide pin bushing, backup pad, buoyancy board and attach the ovum rope and all be located the cavity of perching of laying eggs, and the backup pad is located the below of baffle with the slip pin, vertical guide arm moves up along vertical guide pin bushing under the buoyancy of buoyancy piece, supports on the lower surface of baffle until the slip pin.
In the same ovum device that attaches, when the weight that attaches adnexed embryonated egg on the ovum rope reached the setting value, the buoyancy of attaching adnexed embryonated egg on the ovum rope will be overcome buoyancy and compression spring's effort, make buoyancy board along vertical guide rod down slide and drive the slip pin through the connecting wire and slide toward vertical guide rod direction, the baffle that will slide removes to the baffle that corresponds and crosses the intraoral side, at this moment, should attach the vertical guide rod of ovum device and attach the ovum rope and will float upward to hatching the cavity under the effect of buoyancy piece in.
The device for the cephalopods to lay eggs and perch is specifically used as follows, the perching net cage sinks to the sea bottom under the action of self weight, and the cephalopods can enter the laying-inhabiting cavity through the access passage to perch and lay eggs (by utilizing the characteristic that the cephalopods like drilling holes); meanwhile, when fertilized eggs are not attached to the egg-attaching ropes, the egg-attaching ropes are in a stretched state under the action of the buoyancy plate, the sliding stop rods abut against the lower surface of the partition plate to prevent the vertical guide rods from moving upwards along the vertical guide rods, and the egg-attaching ropes are positioned in the egg-laying inhabiting cavity in the state of the cephalopod egg-laying and inhabiting device, so that the egg-attaching ropes are close to the seabed to adapt to the characteristic that the cephalopods like to lay eggs on attachments close to the seabed during egg laying, and the probability of the cephalopods laying eggs on the egg-attaching ropes is improved;
when the weight of fertilized eggs attached to the egg-attaching rope is larger than the buoyancy of the buoyancy plate in the process that the cephalopods lay eggs on the egg-attaching rope, the buoyancy plate slides downwards along the vertical guide rod to enable the connecting line to be in a stretched state; when the weight of the fertilized eggs attached to the egg attaching rope reaches a set value, the gravity of the fertilized eggs attached to the egg attaching rope overcomes the buoyancy of the buoyancy plate and the acting force of the compression spring, so that the buoyancy plate slides downwards along the vertical guide rod and drives the sliding stop rod to slide towards the vertical guide rod through the connecting line, the sliding stop rod is moved to the inner side of the corresponding partition plate through the opening, at the moment, the vertical guide rod and the egg attaching rope of the egg attaching device float upwards into the hatching cavity under the action of the buoyancy block until the support plate abuts against the lower end of the vertical guide sleeve, and therefore, the device can adapt to the characteristic that the attached eggs are favored to lay eggs on the attachments close to the seabed during oviposition of cephalopods, and can also move the attached eggs upwards to the hatching cavity through the buoyancy block after spawning to leave the position close to the seabed, so that the problems that the rotting substances near the seabed consume oxygen, the water flow is less, the oxygen content is low, and the hatching of a large amount of the fertilized eggs attached together is not beneficial to cause the reduction of the hatching rate are solved.
Preferably, when the supporting plate abuts against the lower end of the vertical guide sleeve, the lower end plate is located in the corresponding partition plate through opening or close to the corresponding partition plate for shielding the corresponding partition plate through opening. So, at the in-process of fertilized egg hatching in hatching cavity, even appear that the fertilized egg drops, the fertilized egg that drops will drop on baffle or lower plate to avoid the fertilized egg that drops directly to sink into seabed silt, lead to the dead problem of cuttlefish fertilized egg.
Preferably, the lower end plate is close to the inner bottom surface of the spawning habitat cavity when the sliding stop rod abuts on the lower surface of the partition plate.
Preferably, the vertical guide rod is provided with a buoyancy plate limiting block, and the buoyancy plate limiting block is positioned below the buoyancy plate.
Preferably, the inner limiting block, the radial guide sleeve, the compression spring and the outer limiting block are sequentially distributed along the axial direction of the sliding stop lever, and the inner limiting block is arranged at one end of the sliding stop lever facing the vertical guide rod.
Preferably, the four side walls of the spawning inhabitation cavity are provided with the access passages.
Preferably, the separator is a mesh plate.
Preferably, the floating net cage also comprises a floating ball floating on the sea surface and a connecting rope connecting the floating ball and the top surface of the inhabiting net cage.
The invention has the beneficial effects that: the method not only can adapt to the characteristic that cephalopods favor to lay eggs on attachments close to the seabed during laying, but also can effectively solve the problem that the hatchability is reduced because decaying substances at the bottom of the water in the area close to the seabed consume oxygen, and the water flow is less, the oxygen content is lower, so that the hatching of a large number of attached fertilized eggs is not facilitated.
Drawings
FIG. 1 is a schematic view showing a structure of the cephalopod spawning and perching apparatus of the present invention.
Fig. 2 is a partial enlarged view of a portion a of fig. 1.
In the figure:
the spawning inhabitation net cage comprises an inhabitation net cage 1, a partition plate 1.1, a spawning inhabitation cavity 1.2, an incubation cavity 1.3, an access passage 1.4 and a partition plate opening 1.5;
the device comprises an egg attaching device 2, a buoyancy block 2.0, a vertical guide sleeve 2.1, a vertical guide rod 2.2, an egg attaching rope 2.3, a support plate 2.4, a buoyancy plate 2.5, a buoyancy plate limiting block 2.6, a lower end plate 2.7, a radial guide sleeve 2.8, a sliding stop lever 2.9, a compression spring 2.10, an inner limiting block 2.11, an outer limiting block 2.12, a wire passing hole 2.13 and a connecting wire 2.14;
the rope 3 is connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 and 2, a cephalopod spawning and inhabiting device comprises an inhabiting net cage 1 and a plurality of egg attaching devices 2.
The habitat cage 1 settles on the seabed. The middle part of the inhabitation net cage is provided with a clapboard 1.1 which divides the inner cavity of the inhabitation net cage into a spawning inhabitation cavity 1.2 positioned below the clapboard and an incubation cavity 1.3 positioned above the clapboard. In this embodiment, the partition is a mesh plate. The side wall of the spawning inhabitation cavity is provided with a plurality of access channels 1.4, and in the embodiment, the access channels are arranged on the front, rear, left and right side walls of the spawning inhabitation cavity. The access passage is communicated with the spawning inhabitation cavity. In this embodiment, the height of the spawning habitat cavity is 70-100 cm.
The egg attaching device 2 is arranged on the inhabitation net cage. The egg attaching device comprises a buoyancy block 2.0, an egg attaching rope 2.3 positioned in the egg laying inhabitation cavity, a vertical guide sleeve 2.1 arranged on the top wall of the incubation cavity, a vertical guide rod 2.2 arranged in the vertical guide sleeve in a sliding way, a support plate 2.4 fixed in the middle of the vertical guide rod, a lower end plate 2.7 fixed at the lower end of the vertical guide rod, a buoyancy plate 2.5 positioned below the support plate and capable of sliding up and down along the vertical guide rod, a radial guide sleeve 2.8 arranged on the upper surface of the support plate, a sliding stop rod 2.9 arranged in the radial guide sleeve in a sliding way, an inner stop block 2.11 and an outer stop block 2.12 arranged on the sliding stop rod, a compression spring 2.10 sleeved on the sliding stop rod, a wire passing hole 2.13 arranged in the middle of the support plate and a connecting wire 2.14 connecting the buoyancy plate and the sliding stop rod. The clapboard is provided with clapboard through openings 1.5 which correspond to the ovum attaching devices one by one. The inner limiting block, the radial guide sleeve, the compression spring and the outer limiting block are sequentially distributed along the axial direction of the sliding stop lever, and the inner limiting block is arranged at one end of the sliding stop lever facing the vertical guide rod. One end of the compression spring is propped against the radial guide sleeve, and the other end of the compression spring is propped against the outer limiting block.
The buoyancy of the buoyancy block is larger than the gravity of the egg attaching device. The buoyancy block is arranged at the upper end of the vertical guide rod.
Attach the ovum rope and connect between buoyancy board and lower end plate, the upper end that attaches the ovum rope is connected with the buoyancy board, and the lower extreme that attaches the ovum rope is connected with lower end plate. In this embodiment, the egg attaching ropes in the same egg attaching device are multiple and are uniformly distributed around the vertical guide rod in the circumferential direction. In the same egg attaching device, the buoyancy of the buoyancy plate is larger than the gravity of the egg attaching rope. The egg-attached rope is in a stretched state under the action of the floating plate. The vertical guide rod is provided with a buoyancy plate limiting block 2.6, and the buoyancy plate limiting block is positioned below the buoyancy plate. In the embodiment, the middle part of the buoyancy plate is provided with a sliding sleeve matched with the vertical guide rod, the sliding sleeve is sleeved on the vertical guide rod, and the sliding sleeve is positioned between the supporting plate and the buoyancy plate limiting block; be located and be equipped with the spacing sand grip of vertical extension on the lateral surface of the vertical guide arm between backup pad and the buoyancy board stopper, be equipped with on the inner wall of sliding sleeve with spacing sand grip complex spacing groove, the spacing groove runs through the upper and lower surface of sliding sleeve, spacing sand grip and spacing groove cooperation for prevent that the buoyancy board from rotating.
One end of the connecting wire is connected with the upper surface of the buoyancy plate, and the other end of the connecting wire penetrates through the wire passing hole and is connected with one end of the sliding stop lever facing the vertical guide rod.
The supporting plate and the buoyancy plate can penetrate through the corresponding partition plate through openings. The radial guide sleeve extends along the radial direction of the vertical guide rod. The sliding stop lever slides along the direction far away from the vertical guide rod along the radial guide sleeve under the action of the compression spring until the inner limiting block abuts against the radial guide sleeve. Backup pad, buoyancy board and attach the ovum rope and all be located the cavity of perching of laying eggs, backup pad and slip pin are located the below of baffle, and vertical guide arm moves up along vertical guide pin bushing under the buoyancy effect of buoyancy piece until the slip pin supports on the lower surface of baffle.
When the sliding stop rod is propped against the lower surface of the clapboard, the lower end plate is close to the inner bottom surface of the spawning inhabitation cavity.
In the same egg attaching device, when the weight of the fertilized eggs attached to the egg attaching rope reaches a set value, the egg attaching rope of the egg attaching device floats upwards to the hatching cavity under the action of the buoyancy block; specifically, in the same ovum device that attaches, when the weight that attaches adnexed embryonated egg on the ovum rope reached the setting value, the buoyancy of attaching adnexed embryonated egg on the ovum rope will be overcome buoyancy and compression spring's effort, make buoyancy board along vertical guide rod down slide and drive the slip pin through the connecting wire and slide toward vertical guide rod direction, the baffle that will slide removes to the baffle that corresponds and crosses the intraoral side, at this moment, this attaches the vertical guide rod of ovum device and attaches the ovum rope and will float upward in the hatching cavity under the effect of buoyancy piece.
The device for spawning and inhabiting the cephalopods is specifically used as follows, the inhabiting net cage sinks to the sea bottom under the action of self weight, and the cephalopods can enter the spawning inhabiting cavity through the access passage to inhabit and spawn (by utilizing the characteristic that the cephalopods like drilling); meanwhile, when fertilized eggs are not attached to the egg-attaching ropes, the egg-attaching ropes are in a stretched state under the action of the buoyancy plate, the sliding stop rods abut against the lower surface of the partition plate to prevent the vertical guide rods from moving upwards along the vertical guide rods, and the egg-attaching ropes are positioned in the egg-laying inhabiting cavity in the state of the cephalopod egg-laying and inhabiting device, so that the egg-attaching ropes are close to the seabed to adapt to the characteristic that the cephalopods like to lay eggs on attachments close to the seabed during egg laying, and the probability of the cephalopods laying eggs on the egg-attaching ropes is improved; when the weight of fertilized eggs attached to the egg-attaching rope is larger than the buoyancy of the buoyancy plate in the process that the cephalopods lay eggs on the egg-attaching rope, the buoyancy plate slides downwards along the vertical guide rod to enable the connecting line to be in a stretched state; when the weight of the fertilized eggs attached to the egg attaching rope reaches a set value, the gravity of the fertilized eggs attached to the egg attaching rope overcomes the buoyancy of the buoyancy plate and the acting force of the compression spring, so that the buoyancy plate slides downwards along the vertical guide rod and drives the sliding stop rod to slide towards the direction of the vertical guide rod through the connecting line, the sliding stop rod is moved to the inner side of the corresponding partition plate through hole, at the moment, the vertical guide rod and the egg attaching rope of the egg attaching device float upwards into the hatching cavity under the action of the buoyancy block until the support plate abuts against the lower end of the vertical guide sleeve, and therefore, the device can adapt to the characteristic that the attached eggs close to the seabed are favored when the cephalopods lay eggs, and can move the egg attaching rope and the fertilized eggs upwards to the hatching cavity through the buoyancy fertilized eggs after laying, so as to leave the position close to the seabed, effectively solve the problem that rotten substances near the seabed consume oxygen, the water flow is less, the oxygen content is lower, and the hatching rate is not favorable for hatching of a large amount of the fertilized eggs attached together, and the hatching rate is reduced.
Further, when the backup pad supports the lower extreme at vertical guide pin bushing, the lower extreme board is located the baffle of correspondence and crosses in the mouth or be close to the baffle of correspondence and cross for shelter from the baffle of correspondence and cross the mouth. So, at the in-process of embryonated egg hatching in hatching the cavity, even appearing the embryonated egg and coming off, the embryonated egg that drops will fall on baffle or lower end plate to avoid the embryonated egg that comes off directly to sink into seabed silt, lead to the dead problem of cuttlefish embryonated egg.
Further, as shown in fig. 1, the cephalopod spawning and perching device further includes a floating ball floating on the sea surface and a connection rope 3 connecting the floating ball and the top surface of the perching cage. In this manner, the cephalopod spawning and perching device can be recovered through the connecting cord. The device for laying and perching the cephalopods is thrown to the seabed every year in the cephalopod laying period (for example, the cuttlefish laying period is spring and summer every year), and after the cephalopod laying period passes, the device for laying and perching the cephalopods is recovered through the connecting rope.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. A device for the oviposition and inhabitation of cephalopods, characterized in that it comprises:
a perching net cage, a clapboard is arranged in the middle of the perching net cage, the clapboard divides the inner cavity of the perching net cage into a spawning perching cavity below the clapboard and an incubation cavity above the clapboard, a plurality of inlet and outlet channels are arranged on the side wall of the spawning inhabitation cavity;
the egg attaching devices are arranged on the inhabiting net cage and comprise buoyancy blocks and egg attaching ropes positioned in the egg inhabiting cavity, and in the same egg attaching device, when the weight of fertilized eggs attached to the egg attaching ropes reaches a set value, the egg attaching ropes of the egg attaching device float upwards into the hatching cavity under the action of the buoyancy blocks;
the egg attaching device comprises a vertical guide sleeve arranged on the top wall of the hatching cavity, a vertical guide rod arranged in the vertical guide sleeve in a sliding manner, a support plate fixed in the middle of the vertical guide rod, a lower end plate fixed at the lower end of the vertical guide rod, a buoyancy plate which is positioned below the support plate and can slide up and down along the vertical guide rod, a radial guide sleeve arranged on the upper surface of the support plate, a sliding stop rod arranged in the radial guide sleeve in a sliding manner, an inner limit block and an outer limit block which are arranged on the sliding stop rod, a compression spring sleeved on the sliding stop rod, a wire passing hole arranged in the middle of the support plate and a connecting wire connecting the buoyancy plate and the sliding stop rod,
the buoyancy of the buoyancy block is larger than the gravity of the egg attaching device, the buoyancy block is arranged at the upper end of the vertical guide rod, the egg attaching rope is connected between the buoyancy plate and the lower end plate, in the same egg attaching device, the buoyancy of the buoyancy plate is larger than the gravity of the egg attaching rope, the egg attaching rope is in a stretched state under the action of the buoyancy plate, one end of the connecting wire is connected with the upper surface of the buoyancy plate, the other end of the connecting wire penetrates through the wire passing hole and is connected with one end of the sliding stop rod facing the vertical guide rod,
backup pad and buoyancy board homoenergetic pass the baffle cross-port that corresponds, radial guide pin bushing is along the radial extension of vertical guide arm, the slip pin slides along the direction of keeping away from vertical guide arm along radial guide pin bushing under compression spring's effect, and until interior stopper supports on radial guide pin bushing, backup pad, buoyancy board and attach the ovum rope and all be located the cavity of perching of laying eggs, and the backup pad is located the below of baffle with the slip pin, vertical guide arm moves up along vertical guide pin bushing under the buoyancy of buoyancy piece, supports on the lower surface of baffle until the slip pin.
2. The device for the cephalopods to lay and perch according to claim 1, wherein in the same egg-attaching device, when the weight of the fertilized eggs attached to the egg-attaching rope reaches a set value, the gravity of the fertilized eggs attached to the egg-attaching rope overcomes the buoyancy of the buoyancy plate and the acting force of the compression spring, so that the buoyancy plate slides downwards along the vertical guide rod and drives the sliding stop lever to slide towards the vertical guide rod through the connecting line, the sliding stop lever is moved to the inner side of the corresponding partition plate passing opening, and at the moment, the vertical guide rod and the egg-attaching rope of the egg-attaching device float upwards into the hatching cavity under the action of the buoyancy block.
3. The device of claim 2, wherein the lower end plate is positioned in or near the corresponding spacer plate opening for blocking the corresponding spacer plate opening when the support plate abuts against the lower end of the vertical guide sleeve.
4. The apparatus for spawning and perching of cephalopods according to claim 1, wherein the lower end plate is adjacent to an inner bottom surface of the spawning perch chamber when the sliding bar is abutted against the lower surface of the partition.
5. The device of claim 1, wherein the vertical guide rods are provided with buoyancy plate stoppers below the buoyancy plate.
6. The device for cephalopods spawning and perching according to claim 1, wherein the inner limiting block, the radial guide sleeve, the compression spring and the outer limiting block are sequentially distributed along an axial direction of the sliding stop lever, and the inner limiting block is disposed at one end of the sliding stop lever facing the vertical guide rod.
7. The device for the oviposition and inhabitation of cephalopods according to claim 1, wherein the entrance and exit passages are formed in the front, rear, left and right side walls of the oviposition and inhabitation cavity.
8. The device for the oviposition and inhabitation of cephalopods according to claim 1, further comprising a floating ball floating on the sea surface and a connecting rope connecting the floating ball and the top surface of the inhabitation net cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698996.8A CN113349112B (en) | 2021-06-23 | 2021-06-23 | Device for oviposition and inhabitation of cephalopods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698996.8A CN113349112B (en) | 2021-06-23 | 2021-06-23 | Device for oviposition and inhabitation of cephalopods |
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| CN113349112A CN113349112A (en) | 2021-09-07 |
| CN113349112B true CN113349112B (en) | 2022-10-14 |
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| CN111296325B (en) * | 2019-12-26 | 2021-08-20 | 浙江省海洋水产研究所 | Bottom sinking type cuttlefish egg attaching device |
| CN112243902B (en) * | 2020-09-08 | 2022-02-18 | 浙江省海洋水产研究所 | Attach ovum rope formula cuttlefish attachment device that lays eggs |
| CN112655608B (en) * | 2020-12-18 | 2022-02-18 | 浙江省海洋水产研究所 | Sinking type attachment base based on oviposition habit of cuttlefish |
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