Sepiella maindroni egg attaching device

Abstract

The utility model discloses a sepiella maindroni egg attaching device, and aims to provide a device which is stable in structure and convenient to take and replace. According to the breeding habit of sepiella maindroni, the adhesion mechanism of oosperms of sepiella maindroni and the availability of secondary metabolites of gorgonian, the device is constructed and comprises an oviposition substratum and filler. The attachment base composed of the stainless steel punching cylinder and the mesh provides an egg attachment site and a reproduction space for the cuttlefish; the attachment base circulates symmetrically, the internal space is large, and a swimming space and an attachment space are provided for cuttlefish oviposition; the gorgonian secondary metabolite is used as a solid or liquid filler and is combined with a spawning substratum to provide a spawning site habitat, so that the problem of low affinity of sepiella maindroni to an artificial cuttlefish reef is solved, and the method is an optimization of a method for trapping sepiella maindroni to spawn.

Description

Technical Field

[0001] The utility model relates to the technical field of marine farming or squid farming, in particular to an egg-attaching device for Mann's needleless squid. Background Art

[0002] The needleless squid was once one of the four major seafoods in the East China Sea. In recent years, scientific researchers have significantly increased its production through artificial breeding, proliferation and release, but still have not been able to achieve complete restoration of the needleless squid resources. The fundamental reason is that the spawning habitat of the needleless squid has been damaged or even lost, which may have an adverse impact on subsequent artificial input or the needleless squid that grows and reproduces in natural waters. For this reason, the utility model is used to simulate and provide a suitable artificial spawning habitat to induce the squid to spawn and attach. Utility Model Content

[0003] The utility model aims to provide an egg-laying device for the needleless cuttlefish, which, according to the preference of the needleless cuttlefish to lay eggs on an attachment base with a diameter less than 7mm and on gorgonians, effectively utilizes the secondary metabolites of gorgonians as fillers and provides a proper artificial environment to attract and induce the cuttlefish to lay eggs.

[0004] The technical solution of the utility model is:

[0005] An egg-laying device for Mansoni's needleless cuttlefish, characterized in that it comprises: an egg-laying attachment base and a filler; the egg-laying attachment base is composed of a punched cylinder and a mesh;

[0006] The attachment base is a concrete base, on which a plurality of punched cylinders are arranged, mesh sheets are arranged on the outer circumference of the punched cylinders, and fillers for inducing squid eggs to attach are arranged inside the punched cylinders.

[0007] The concrete base of the egg-laying attachment base is a regular polygon, and a punched cylinder is set at the corner of the regular polygon; a reinforcement structure is arranged between the punched cylinders, adjacent punched cylinders are connected by welding with stainless steel plates, and relative punched cylinders are connected by welding with stainless steel frames; both sides and the top and bottom of the cylinder are reinforced with stainless steel bars.

[0008] The squid egg-laying device of this scheme has a concrete base that bears the main counterweight performance, has a low center of gravity, is not easy to tip over, and has good stability; the device has symmetrical circulation and a large internal space, which provides a large swimming space for the Mann's needleless squid to lay eggs and abundant bait brought by sufficient water flow, thereby increasing the squid's egg-laying capacity.

[0009] The egg-laying base is designed from two perspectives: the artificial squid reef provides egg-laying sites and reproductive space at the physical level, and the natural egg-laying base carries special substances that can attract the Mansoni squid to lay eggs at the chemical level. The egg-laying device composed of the egg-laying base and bioactive materials attracts the Mansoni squid, induces it to lay eggs and attaches to the outer mesh of the cylinder.

[0010] Preferably, the punching cylinder is a stainless steel cylinder, comprising a top cover and a cylinder body; the top cover is a rotatable disc, on which a columnar handle is provided, which can be opened and closed by rotating; the side of the cylinder body is covered with punching holes and can be hooked to the cylinder body by a mesh.

[0011] Preferably, the filler comprises a funnel-shaped liquid inlet, a liquid separation end, and a liquid outlet pipe; the liquid separation end of the filler forms an angle of 120° with the liquid outlet pipe, there are 8 liquid outlet pipes, the liquid outlet pipes can be embedded in the punching cylinder, and the liquid can flow evenly into the 8 punching cylinders through the liquid separation end.

[0012] Preferably, the mesh is formed by hemp ropes with a diameter of 4 to 8 mm, which are cross-woven at a spacing of 15 to 25 mm, and permeable holes are formed on the hemp net; stainless steel hooks are equidistantly arranged at both the upper and lower ends of the hemp net.

[0013] Preferably, the mesh is hooked on the punched holes of the punched cylinder near the top cover at 90-110 mm, hung vertically and evenly attached to the outer wall of the punched cylinder, and the bottom end of the mesh is fixed; after the punched cylinder is filled, the bioactive material penetrates through the punched holes and adheres to the mesh.

[0014] Preferably, the symbiotic bacteria product extract is made into an equal-length cylinder slightly smaller than the diameter of the punched cylinder and directly filled into the cylinder; or a sponge is first filled into the punched cylinder, and then the symbiotic bacteria fermentation liquid is poured into it through a filler; the above bioactive materials pass through the punched cylinder and fill the mesh of the cylinder body.

[0015] Preferably, the filler is a symbiotic bacteria product extract or a symbiotic bacteria fermentation broth biologically active material obtained from gorgonian secondary metabolites.

[0016] The beneficial effects of the utility model are:

[0017] The device has a low center of gravity, is not easy to tip over, and has good stability; it has symmetrical circulation and a large internal space, providing a large swimming space for the Mansoni squid to lay eggs and abundant bait brought by sufficient water flow, thereby increasing the squid's egg-laying capacity.

[0018] By combining artificial attachment base with biologically active materials, the egg-laying base is designed from two perspectives: the physical level of artificial squid reefs providing egg-laying sites and reproductive space, and the chemical level of natural attachment bases carrying special substances that can attract Mansoni's needleless squid to lay eggs. This is an optimization method for attracting Mansoni's needleless squid to lay eggs.

[0019] Taking into account the feasibility and convenience of the filling and replenishing methods of the biologically active materials, water is used as one of the necessary factors for the egg-attaching device to take effect, which reduces the cost investment and the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the structure of the egg-attaching device of the needleless squid Mansoni.

[0021] Figure 2 It is a top view of the egg-laying attachment base of the device.

[0022] Figure 3 yes Figure 1 A partial enlarged view of the middle punching cylinder 1.

[0023] Figure 4 This is the mesh expansion diagram.

[0024] Figure 5 It is a schematic diagram of the filler structure.

[0025] Figure 6 It is a schematic diagram of the hooking of the mesh 5.

[0026] In the figure: an egg-laying substrate 10; a perforated cylinder 1, a cylinder body 1.1, and a perforated hole 1.11; a top cover 4, a disc 4.1, and a columnar handle 4.2; a stainless steel plate 2; a stainless steel frame 3; a mesh 5, a hemp net 5.1, a permeable hole 5.11, a hemp rope 5.2, and a stainless steel hook 5.3; a concrete base 6; a filler 11, a liquid inlet 7, a liquid separation end 8, and a liquid outlet pipe 9. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Embodiment 1:

[0029] like Figure 1 As shown, a device for attaching eggs to a needleless squid includes: an spawning attachment base 10.

[0030] The spawning attachment base is a ring-shaped regular octagonal concrete base 6, and 8 punched cylinders 1 are arranged at the corners of the concrete base. Adjacent punched cylinders are welded and connected by stainless steel plates 2, and relative punched cylinders are welded and connected by stainless steel frames 3; the two sides and the top and bottom of the cylinder are reinforced with stainless steel bars to enhance the stability of the device.

[0031] The diameter of the punching cylinder is 90mm, the height is 900mm, the diameter of the side punching holes is 2mm, the hole spacing is 5mm, and the height of the wrapped mesh part is 750mm; the mesh is woven from natural materials and has less pollution to the natural environment; each hemp rope has a diameter of 4 to 8mm and is woven horizontally and vertically with a spacing of 15-25mm to form a hemp net, forming permeable holes; stainless steel hooks are equidistantly arranged at the upper and lower ends of the hemp net.

[0032] Furthermore, the total height of the spawning base is 1050 mm, the upper frame is 900 mm high, the stainless steel plate is 900 mm long and 100 mm wide, and the stainless steel frame has a diameter of 20 mm. The lower concrete base is 150 mm high, and the base is made of concrete and corrosion-resistant reinforcement and is ring-shaped.

[0033] At the same time, the eight punched cylinders provide the squid with a large amount of attachment and swimming space, reducing the impact of water flow and the hydraulic pressure on the surface of the structure, and improving the stability of the device. The main counterweight performance is undertaken by the annular regular octagonal concrete base, which has a low center of gravity, is not easy to tip over, and has good stability.

[0034] The filler 11 is formed by a funnel-shaped liquid inlet 7, a liquid separation end 8, and a liquid outlet pipe 9; the maximum diameter of the liquid inlet is 90 mm, the liquid separation end and the liquid outlet pipe form an angle of 120°, and the liquid outlet pipe can be embedded in the punched cylinders at each corner of the egg-laying attachment base. The embeddable part of the liquid outlet pipe is 120 mm long and has a diameter of 30 mm.

[0035] Gorgonian corals are the first choice for the eggs of Mansoni's needleless squid during the breeding period. The sticky substances on the surface of gorgonian corals have a chemical regulatory effect on marine organisms. The hypothesis that marine invertebrates produce biologically active secondary metabolites usually comes from endogenous, epiphytic, symbiotic or environmental microorganisms has been verified many times; gorgonian coral symbiotic fungi can be screened and cultured, and can be proliferated, fermented and extracted in large quantities under laboratory conditions, and can be used as a sufficient and stable source of chemical substances. The chemical substances that can attract Mansoni's needleless squid to attach eggs are extracted and made into extracts or fermentation liquids for use.

[0036] Furthermore, the symbiotic bacteria fermentation liquid prepared from the secondary metabolites of gorgonian coral flows into the liquid separation end through the liquid inlet of the filler, and evenly flows to the 8 punched cylinders after passing through the liquid outlet pipe. With the help of the sponge pre-filled in the cylinder, it is effectively attached to the mesh outside the cylinder. The spawning habitat provided can effectively attract the Manson's needleless squid to attach and induce it to lay eggs.

[0037] like Figure 1 , Figure 2 , Figure 3As shown, the egg-laying attachment base in the device includes a punched cylinder 1 and a mesh 5 hooked on its side; the punched cylinder 1 includes a cylinder body 1.1 and a top cover 4, a rotatable disc 4.1 is welded on the top cover, and a columnar handle 4.2 is welded on the disc. The disc is rotated to open and close, which can effectively realize the replacement of biologically active materials in the cylinder and improve the sustainability of the device.

[0038] like Figure 3 , Figure 4 , Figure 6 As shown, the side of the cylinder is covered with punched holes 1.11 with a hole diameter of 2mm and a hole spacing of 5mm, which can be hooked on the outer wall of the cylinder body by a mesh 5; the mesh is woven by a hemp net 5.1 and a hemp rope 5.2, and the diameter of the hemp rope is 4-8mm; the horizontal and vertical spacings between the hemp ropes are 15-25mm, and permeable holes are formed on the hemp net, and 4 equidistantly arranged stainless steel hooks are provided at the upper and lower ends of the hemp net.

[0039] like Figure 6 As shown, the mesh is hooked on the punched holes of the punched cylinder at a distance of 90-110 mm from the top cover, vertically hung down and evenly attached to the outer wall of the punched cylinder, and the bottom end of the mesh is fixed; after the punched cylinder is filled, the bioactive material penetrates through the punched holes and adheres to the mesh; in a water flow environment, the inner surface of the mesh is in close contact with the punched cylinder, and the holes on the hemp net can penetrate the bioactive material and adhere to the mesh, thereby attracting the Mansoni squid to stick to the outer surface of the mesh to lay eggs, and the fertilized eggs adhere to the mesh.

[0040] The needleless squid prefers to lay eggs on substrates with a diameter of less than 7mm. If there is no suitable substrate, the parent will not lay eggs or will delay spawning. In natural waters, the needleless squid prefers to lay eggs on gorgonians. Due to uncontrollable factors such as ocean acidification, the growth of gorgonians is slow or the habitat is damaged. This is inconsistent with the current situation that the resources of the needleless squid need to be replenished in large quantities, and cannot provide sufficient long-term and stable egg attachment guarantee.

[0041] The punched holes on the side of the cylinder are filled with biologically active materials and combined with the spawning attachment base. The spawning habitat provided effectively attracts the Manson's needleless squid and induces it to lay eggs, improving the attracting effect and reducing the onset time, solving the problem of the Manson's needleless squid's low affinity for artificial squid reefs; the permeable holes on the mesh only allow water to pass through, and the fertilized eggs are attached to the mesh, effectively reducing the shedding and loss of fertilized eggs on the egg attachment device.

[0042] Embodiment 2:

[0043] like Figure 1 As shown, a device for attaching eggs to a needleless squid includes: an spawning attachment base 10.

[0044] The spawning attachment base is a ring-shaped regular octagonal concrete base 6, and 8 punched cylinders 1 are arranged at the corners of the concrete base. Adjacent punched cylinders are welded and connected by stainless steel plates 2, and relative punched cylinders are welded and connected by stainless steel frames 3; the two sides and the top and bottom of the cylinder are reinforced with stainless steel bars to enhance the stability of the device.

[0045] The diameter of the punching cylinder is 90mm, the height is 900mm, the diameter of the side punching holes is 2mm, the hole spacing is 5mm, and the height of the wrapped mesh part is 750mm; the mesh is woven from natural materials and has less pollution to the natural environment; each hemp rope has a diameter of 4 to 8mm and is woven horizontally and vertically with a spacing of 15-25mm to form a hemp net, forming permeable holes; stainless steel hooks are equidistantly arranged at the upper and lower ends of the hemp net.

[0046] Furthermore, the total height of the spawning base is 1050 mm, the upper frame is 900 mm high, the stainless steel plate is 900 mm long and 100 mm wide, and the stainless steel frame has a diameter of 20 mm. The lower concrete base is 150 mm high, and the base is made of concrete and corrosion-resistant reinforcement and is ring-shaped.

[0047] At the same time, the eight punched cylinders provide the squid with a large amount of attachment and swimming space, reducing the impact of water flow and the hydraulic pressure on the surface of the structure, and improving the stability of the device. The main counterweight performance is undertaken by the annular regular octagonal concrete base, which has a low center of gravity, is not easy to tip over, and has good stability.

[0048] Gorgonian corals are the first choice for the eggs of Mansoni's needleless squid during the breeding period. The sticky substances on the surface of gorgonian corals have a chemical regulatory effect on marine organisms. The hypothesis that marine invertebrates produce biologically active secondary metabolites usually comes from endogenous, epiphytic, symbiotic or environmental microorganisms has been verified many times; gorgonian coral symbiotic fungi can be screened and cultured, and can be proliferated, fermented and extracted in large quantities under laboratory conditions, and can be used as a sufficient and stable source of chemical substances. The chemical substances that can attract Mansoni's needleless squid to attach eggs are extracted and made into extracts or fermentation liquids for use.

[0049] like Figure 1 , Figure 2 , Figure 3 As shown, the egg-laying attachment base in the device includes a punched cylinder 1 and a mesh 5 hooked on its side; the punched cylinder 1 includes a cylinder body 1.1 and a top cover 4, a rotatable disc 4.1 is welded on the top cover, and a columnar handle 4.2 is welded on the disc. The disc is rotated to open and close, which can effectively realize the replacement of biologically active materials in the cylinder and improve the sustainability of the device.

[0050] At the same time, the secondary metabolites of gorgonian coral are made into a long column of symbiotic bacteria product extract smaller than the diameter of the cylinder, which is filled into the punched cylinder 1. The extract will dissolve and penetrate into the mesh through the water flow environment. The spawning habitat provided can effectively attract a large number of needleless squid to lay eggs and attach to the end of the mesh. The sufficient bait brought by the water flow can increase the squid's spawning amount.

[0051] like Figure 3 , Figure 4 , Figure 6 As shown, the side of the cylinder is covered with punched holes 1.11 with a hole diameter of 2mm and a hole spacing of 5mm, which can be hooked on the outer wall of the cylinder body by a mesh 5; the mesh is woven by a hemp net 5.1 and a hemp rope 5.2, and the diameter of the hemp rope is 4-8mm; the horizontal and vertical spacings between the hemp ropes are 15-25mm, and permeable holes are formed on the hemp net, and 4 equidistantly arranged stainless steel hooks are provided at the upper and lower ends of the hemp net.

[0052] like Figure 6 As shown, the mesh is hooked on the punched holes of the punched cylinder at a distance of 90-110 mm from the top cover, vertically hung down and evenly attached to the outer wall of the punched cylinder, and the bottom end of the mesh is fixed; after the punched cylinder is filled, the bioactive material penetrates through the punched holes and adheres to the mesh; in a water flow environment, the inner surface of the mesh is in close contact with the punched cylinder, and the holes on the hemp net can penetrate the bioactive material and adhere to the mesh, thereby attracting the Mansoni squid to stick to the outer surface of the mesh to lay eggs, and the fertilized eggs adhere to the mesh.

[0053] The needleless squid prefers to lay eggs on substrates with a diameter of less than 7mm. If there is no suitable substrate, the parent will not lay eggs or will delay spawning. In natural waters, the needleless squid prefers to lay eggs on gorgonians. Due to uncontrollable factors such as ocean acidification, the growth of gorgonians is slow or the habitat is damaged. This is inconsistent with the current situation that the resources of the needleless squid need to be replenished in large quantities, and cannot provide sufficient long-term and stable egg attachment guarantee.

[0054] The punched holes on the side of the cylinder are filled with biologically active materials and combined with the spawning attachment base. The spawning habitat provided effectively attracts the Manson's needleless squid and induces it to lay eggs, improving the attracting effect and reducing the onset time, solving the problem of the Manson's needleless squid's low affinity for artificial squid reefs; the permeable holes on the mesh only allow water to pass through, and the fertilized eggs are attached to the mesh, effectively reducing the shedding and loss of fertilized eggs on the egg attachment device.

[0055] Embodiment three:

[0056] The symbiotic bacteria fermentation liquid is prepared from the secondary metabolites of gorgonians in advance, and the mesh is placed in a biological tank filled with the fermentation liquid and left to stand for 1-2 hours. After the biologically active material is filled, the mesh is hooked to the punched hole of the punched cylinder 90-110 mm away from the top cover, and is hung vertically and evenly close to the outer wall of the punched cylinder, and the bottom end of the mesh is fixed; in a water flow environment, the inner surface of the mesh is close to the punched cylinder, and the hemp net has holes that allow the biologically active material to penetrate and adhere to the mesh, thereby attracting the Manson squid to stick to the outer surface of the mesh to lay eggs, and the fertilized eggs are attached to the mesh.

[0057] The punched holes on the side of the cylinder are filled with biologically active materials and combined with the spawning attachment base. The spawning habitat provided effectively attracts the Manson's needleless squid and induces it to lay eggs, improving the attracting effect and reducing the onset time, solving the problem of the Manson's needleless squid's low affinity for artificial squid reefs; the permeable holes on the mesh only allow water to pass through, and the fertilized eggs are attached to the mesh, effectively reducing the shedding and loss of fertilized eggs on the egg attachment device.

[0058] It is particularly noted that the device used in this experimental example to induce spawning of the needleless squid is only a preferred embodiment of the utility model, not all embodiments. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

Claims

1. A device for attaching eggs to a Mansoni squid, characterized in that: include: Spawning substrate and filler; the spawning substrate is composed of a perforated cylinder and a mesh; The attachment base is a concrete base, on which a plurality of punched cylinders are arranged, mesh sheets are arranged on the outer circumference of the punched cylinders, and fillers for inducing squid eggs to attach are arranged inside the punched cylinders.

2. The egg-laying device for the needleless squid of claim 1, characterized in that: The concrete base of the egg-laying attachment base is a regular polygon, and a punched cylinder is arranged at each corner of the concrete base.

3. The egg-attaching device for the needleless squid of claim 2, characterized in that: A reinforcement structure is provided between the punching cylinders.

4. The egg-attaching device for the needleless squid of claim 1, 2 or 3, characterized in that: The punching cylinder is a stainless steel cylinder, including a top cover and a cylinder body; the top cover is a rotatable disc, and the disc is provided with a columnar handle, which can be opened and closed by rotating; the side of the cylinder body is covered with punching holes, and the mesh is hooked on the cylinder body.

5. The egg-laying device for the needleless squid of claim 4, characterized in that: The mesh is formed by horizontally and vertically weaving hemp ropes with a diameter of 4 to 8 mm at a spacing of 15 to 25 mm to form a hemp net, and permeable holes are formed on the hemp net; stainless steel hooks arranged equidistantly are arranged at both the upper and lower ends of the hemp net.

6. The egg-laying device for the needleless squid of claim 5, characterized in that: The mesh is hooked on the punching holes of the punching cylinder at a distance of 90-110 mm from the top cover, vertically hung down and evenly attached to the outer wall of the punching cylinder, and the bottom end of the mesh is fixed.

7. The egg-laying device for the needleless squid of claim 1, characterized in that: The filler is a symbiotic bacteria product extract or a symbiotic bacteria fermentation liquid biologically active material made from gorgonian secondary metabolites.

8. The egg-laying device for the needleless squid of claim 2 or 7, characterized in that: The filler comprises: a liquid inlet, a liquid separation end and a liquid outlet pipe; the liquid outlet pipe can be embedded in the perforated cylinders at each corner of the egg-laying attachment base, and the filler flows into the perforated cylinder through the filler.

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